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SERVICE MANUAL SERVICE MANUAL

Product Type: Chassis: Manual Part #: Model Line: Product Year:

Model Number:

CONTENTSGeneral Information/Remote Controls................................Installer’s Menu ............................................................Servicing/Trobleshooting ................................................

.................................................Exploded Views ............................................................. Schematics ...................................................................

Model/Module Parts List

Published by Technical Publications

Zenith Electronics CorporationP. O. Box 240007

Huntsville, Al 35824

Copyright December 2004 by Zenith Electronics Corporation ©

Printed in U. S. A.

Presentation SeriesFCH-503828VD0205BH2004

123456

H20H52DTH20H52DT8HW20H52DTHW20H52DT11

PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO-VIDEO PRODUCTS

3828VD0205B CH-FLAT - SAFETYi

IMPORTANT SAFETY NOTICEThis Manual was prepared for use only by properly trained audio-visual servicetechnicians.When servicing this product, under no circumstances should the original designbe modified or altered without permission from Zenith Electronics Corporation.All components should be replaced only with types identical to those in theoriginal circuit and their physical location, wiring and lead dress must conformto original layout upon completion of repairs.

Special components are also used to prevent x-radiation, shock and fire hazard.These components are indicated by the letter “x” included in their componentdesignators and are required to maintain safe performance. No deviations areallowed without prior approval by Zenith Electronics Corporation.

Circuit diagrams may occasionally differ from the actual circuit used. This way,implementation of the latest safety and performance improvement changes intothe set is not delayed until the new service literature is printed.

Caution: Do not attempt to modify this product in any way. Never performcustomized installations without manufacturer’s approval. Unauthorizedmodifications will not only void the warranty, but may lead to property damageor user injury.

Service work should be performed only after you are thoroughly familiar withthese safety checks and servicing guidelines.

Graphic symbols

The exclamation point within an equilateral triangle is intendedto alert the service personnel to important safety information inthe service literature.

The lightning flash with arrowhead symbol within an equilateraltriangle is intended to alert the service personnel to the presenceof noninsulated “dangerous voltage” that may be of sufficientmagnitude to constitute a risk of electric shock.

The pictorial representation of a fuse and its rating within anequilateral triangle is intended to convey to the servicepersonnel the following fuse replacement caution notice:CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,REPLACE ALL FUSES WITH THE SAME TYPE AND RATING AS MARKEDNEAR EACH FUSE.

SERVICE INFORMATIONWhile servicing, use an isolation transformer for protection from AC line shock.

After the original service problem has been corrected, make a check of thefollowing:

FIRE AND SHOCK HAZARD1. Be sure that all components are positioned to avoid a possibility of

adjacent component shorts. This is especially important on items transportedto and from the repair shop.

2. Verify that all protective devices such as insulators, barriers, covers, shields,strain reliefs, power supply cords, and other hardware have been reinstalledper the original design. Be sure that the safety purpose of the polarized lineplug has not been defeated.

3. Soldering must be inspected to discover possible cold solder joints, soldersplashes, or sharp solder points. Be certain to remove all loose foreignparticles.

4. Check for physical evidence of damage or deterioration to parts andcomponents, for frayed leads or damaged insulation (including the ACcord), and replace if necessary.

5. No lead or component should touch a receiving tube or a resistor rated at1 watt or more. Lead tension around protruding metal surfaces must beavoided.

6. After re-assembly of the set, always perform an AC leakage test on all exposedmetallic parts of the cabinet (the channel selector knobs, antenna terminals,handle and screws) to be sure that set is safe to operate without danger ofelectrical shock. DO NOT USE A LINE ISOLATION TRANSFORMER DURING THISTEST. Use an AC voltmeter having 5000 ohms per volt or more sensitivity inthe following manner: Connect a 1500 ohm, 10 watt resistor, paralleled by.15 mfd 150V AC type capacitor between a known good earth ground (waterpipe, conduit, etc.) and the exposed metallic parts, one at a time. Measurethe AC voltage across the combination of 1500 ohm resistor and .15mfdcapacitor. Reverse the AC plug by using a non-polarized adaptor and repeatAC voltage measurements for each exposed metallic part. Voltage measuredmust not exceed 0.75 volts RMS. This corresponds to 0.5 milliamp AC. Anyvalue exceeding this limit constitutes a potential shock hazard and must becorrected immediately.

X-RADIATION1. Be sure procedures and instructions to all service personnel cover the

subject of x-radiation. The only potential source of x-rays in current TVreceivers is the picture tube. However, this tube does not emit x-rays whenthe HV is at the factory-specified level. The proper value is given in theapplicable schematic. Operation at higher voltages may cause a failure of thepicture tube or high-voltage supply and, under certain circumstances mayproduce radiation in excess of desirable levels.

2. Only factory-specified CRT anode connectors must be used.

3. It is essential that the service personnel have available an accurate andreliable high-voltage meter.

4. When the high-voltage circuitry is operating properly, there is no possibilityof an x-radiation problem. Every time a color chassis is serviced, thebrightness should be run up and down while monitoring the high voltagewith a meter, to be certain that the high voltage does not exceed thespecified value and that it is regulating correctly.

5. When troubleshooting and making test measurements in a product with aproblem of excessively high voltage, avoid being unnecessarily close to thepicture tube and the high voltage power supply. Do not operate the productlonger than necessary to locate the cause of excessive voltage.

6. Refer to HV, B+, and shutdown adjustment procedures described in theappropriate schematics and diagrams (where used).

IMPLOSION1. All direct view picture tubes are equipped with an integral implosion

protection system; take care to avoid damage during installation.

2. Use only the recommended factory replacement tubes.

TIPS ON PROPER INSTALLATION1. Never install any receiver in a closed-in recess, cubbyhole, or closely fitting

shelf space over, or close to, a heat duct, or in the path of heated air flow.

2. Avoid conditions of high humidity such as: outdoor patio installationswhere dew is a factor, near steam radiators where steam leakage is a factor,etc.

3. Avoid placement where draperies may obstruct venting. The customer shouldalso avoid the use of decorative scarves or other coverings that mightobstruct ventilation.

4. Wall- and shelf-mounted installations using a commercial mounting kit mustfollow the factory-approved mounting instructions. A product mounted toa shelf or platform must retain its original feet (or the equivalent thicknessin spacers) to provide adequate air flow across the bottom. Bolts or screwsused for fasteners must not touch any parts or wiring. Perform leakage testson customized installations.

5. Caution customers against mounting a product on a sloping shelf or in atilted position, unless the receiver is properly secured.

6. A product on a roll-about cart should be stable in its mounting to the cart.Caution the customer on the hazards of trying to roll a cart with smallcasters across thresholds or deep pile carpets.

7. Caution customers against using a cart or stand that has not been listed byUnderwriters Laboratories, Inc. for use with its specific model of televisionreceiver or generically approved for use with TVs of the same or larger screensize.

8. Caution customers against using extension cords. Explain that a forest ofextensions, sprouting from a single outlet, can lead to disastrousconsequences to home and family.

A.C. Voltmeter

1600 OHM

10 WATT

Place this probeon each exposedmetal part.

Good Earth Groundsuch as the WaterPipe, Conduit, etc.

0.16uF

PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO-VIDEO PRODUCTS

3828VD0205B CH-FLAT - SAFETYii

X-RadiationTo prevent possible exposure to x-radiation caused by excessive CRTanode voltage, the CH-Flat chassis incorporate a “High VoltageShutdown” circuit. This circuit senses the level of a flyback pulsefrom the “Flyback Transformer” representative of the actual highvoltage on the CRT anode. When this level exceeds a predeterminedvoltage, the circuit shuts down the TV set, preventing further gen-eration of anode voltage.

Shutdown Circuit Operation(Refer to Figure below)The flyback pulse voltage from pin 6 of TX3201 (Flyback Trans-former) is peak detected (rectified) by the action of diode DX3001and capacitor C3003. This form a DC voltage appearing on C3003representative of the CRT anode voltage (HV) produced by TX3201.This voltage is divided down by precision resistors RX3004, RX3005,RX3006 and RX3007. This lower voltage appears on the zener diodeZD3000; when this voltage exceeds by 3.5 Vdc the “zener voltage”the HV shutdown occurs (pin 29 of ICX2200).

CRT Anode High Voltage Measurement Procedure

Each CRT screen size has it’s own safe operating anode and shut-down voltage. Critical safety component (designated with an ‘X’ inthe component designator) are designed to operate the CRT at asafe operating anode voltage and provide proper shutdown thresh-olds. If replacement of any of these components are deemed neces-sary, it is important to use original type Zenith components. Afterreplacement is made, confirm proper anode voltage using the fol-lowing procedure.

Measurement of the CRT anode voltage must be performed using ahigh impedance-high voltage meter, with no raster on the screen,and operating at nominal horizontal frequency, 15.75 Khz (NTSCsignal).

After discharging the CRT, connect a high impedance-high voltagemeter to the CRT anode. Turn the television ‘on’ and confirm a goodsignal is being displayed. Reduce Brightness and Contrast settingsuntil the picture is well extinguished.

Observe the anode voltage meter reading and compare with thetable below for the proper CRT screen size. If the voltage readingis higher than the maximum, verify circuit component values andproper operation.

CRT Screen Size Nominal Anode Voltage (KV) Max. Shutdown Voltage (KV)20" 26+/-1.0 32

CRT Anode Voltage

HV SHUTDOWN PROCEDURE.

·After discharging the CRT, connect a high impedance-high volt-age meter to the CRT anode

·Access Video Menu and adjust Brightness and Contrast controlsfor minimum screen luminance (beam current to 0 mA).

·Wait until the Video Menu or display disappear.

·Connect a variable Resistor (1 MW) between ground and junc-tion of RX3754 and RX3755, and decrease slowly the resistancevalue until shutdown occurs.

·Measure High Voltage shutdown.

Fly-Back Transformer CX3215Deflection Yoke CX3216

CX3203 RX3753CX3204 RX3754CX3205 RX3755CX3206 RX3756CX3207

COMPONENTS WITH ANY INFLUENCE IN HV INCREASE

Flyback Pulse

IN

RX3209

C3003

DX3001

RX3007

RX3006

RX3005

C3002

ZD3000

R3003

D3002

RM3002 C3001

RM3001 SHUTDOWN

TO PIN 29ICX2200Of TX3201

From Pin 6

OUT

RX3004

TABLE OF CONTENTS

SECTION 1.................GENERAL INFOINTRODUCTION...................................................... 1-1

Overview ........................................................ 1-1INTERFACES .......................................................... 1-2

SUPERPORT - MPI ............................................ 1-2MULTIPLE PROTOCOL INTERFACE ......................... 1-2EBC (EDGE BOARD CARD) ................................... 1-2CONNECTION CENTER ON BACK/REAR OF TV........... 1-2

REMOTE - HP602 ................................................... 1-5INSTALLER’S PROGRAMMER LT-2000/02 .................. 1-6

QUICKSET II PROGRAMMER ................................ 1-6LEARN FROM TV ............................................... 1-6TEACH TO TV ................................................... 1-6SET CLONE CLOCK FROM TV ................................ 1-7DISPLAY TV SETUP ............................................ 1-7DISPLAY CLONE SETUP ...................................... 1-7OPERATION NOTES ............................................ 1-7

USER MENUS ......................................................... 1-8SETUP MENU ................................................... 1-8AUTOPROGRAM................................................. 1-8CHANNEL LABELS ............................................. 1-8VIDEO MENU ................................................... 1-9ON SCREEN DISPLAYS ...................................... 1-10RADIO FEATURE ............................................. 1-11FM ADD/DEL ................................................. 1-11FM LABELS .................................................... 1-11TIMER SETUP ................................................. 1-11RADIO SCREEN SAVER ..................................... 1-11CHANNEL BANK ............................................. 1-12

SECTION 2......................FACTORY & INSTALLERS MENUACCESING FACTORY MENU ....................................... 2-1

FACTORY MENU OPTIONS ................................... 2-1ACCESING INSTALLERS MENU .................................. 2-3

INSTALLERS MENU ADJUSTMENTS ........................ 2-3ADJUSTMENT CHART (INSTALLER MENU SETTINGS) . 2-8

SECTION 3.......................SERVICINGSERVICING ............................................................ 3-1

GENERAL INFORMATION..................................... 3-1MODULE-LEVEL SERVICING ................................. 3-1SERVICING THE POWER SUPPLY ........................... 3-1IF SERVICING....................................................3-3AGC DELAY .......................................................3-3G2 ADJUSTMENT ...............................................3-4FOCUS ADJUSTMENT ......................................... 3-4PURITY & CONVERGENCE SETUP PROCEDURE ........ 3-5HORIZONTAL-TILT WEDGE ADJUSTMENT ................ 3-6UNUSUAL TILT CASE ......................................... 3-6

SECTION 4..................MODEL PARTSH20H52DT/DT8 ....................................................4-1

TOC - 1 CH-FLAT -TOC

SECTION 5......................DIAGRAMSH20H52DT/DT8 Exploded View .......................... 5-1

SECTION 6.....................SCHEMATICSMain Processor ................................................ 6-1Video Processor Circuit ..................................... 6-2Audio Amplifier ............................................... 6-3Power Supply .................................................. 6-4Deflection Circuit ............................................ 6-5AM_FM Radio .................................................. 6-6Pillow Speaker ................................................ 6-7Edge Cardt ..................................................... 6-8MPI Card Circuit .............................................. 6-9Video Output ................................................ 6-10PCB Layout 1 Top .......................................... 6-11PCB Layout 1 Bottom ..................................... 6-12PCB Layout 2 Top .......................................... 6-13PCB Layout 2 Bottom ..................................... 6-14

3828VD0205B 1-1 CH-FLAT - OVERVIEW

OVERVIEW

INTRODUCTIONThis manual provides a brief explanation in an overall view of the CH-Flat chassis used on Health view model flat screen.The CH-Flat serie chassis features seven ICs for all signal, sync, and sweep processing.ICX2200 - Handles all of the audio/video, sync and sweep drive processing.IC6000 - Main microprocessor. It is tied directly to the keyboard and the infrared detector.IC6001 - System memory.ICX2100 - Handles vertical sweep.IC2800 - Audio switch.ICX3612 - Power supply. This is a switching type supply powered by a bridge rectifier circuit. This IC supplies power forMicroprocessor and powering the LSP or MPI port third party application.

The table below contains some general information about the Commercial model. Refer to the interconnect and parts listfor more information.

4G9

CN2K6CX4003

CN2C5B

IC6000

ICX2200

CON4H2

ICX3850

IC2800

TU1240

CN10VGA1

ICX3801

TX3201

CN2C5A

ICX2100

JP1

Qx3200

2H4IC4201

CN3T8

CN3R8

CN3Y3

TX3612

CX3653

IC801

ICX3670

LX3400

IC6001

Tx900

CX3610

FX3400

TX4001

MODEL SCR JACKS AUDIO EXTRA FEATURESREMOTE

CONTROLLER RECEIVER

MICRO OP GUIDE/OWNER MANUAL

H20H52DT/DT8 20 3 MONO SuperPort Slot, MPI Card 6712SCA227A 0IMCRKE018A 3828VA0518B

CH-Flat Chassis Model Information


OVERVIEW (continued)

INTERFACESSUPERPORT - MPI

Zenith Commercial Product receivers are now beingadapted to interact with other equipment. Prime ex-amples of this can be found in Lodging and Health Caresituations where the set is controlled from the main of-fice.All this is made possible by the new technology that isbeing built into these receivers. The SuperPort and/orMultiple Protocol Interface (MPI) jack and associatedcircuitry allow remote control of the set.

MULTIPLE PROTOCOL INTERFACE

Television functions and features are controlled by thecommunication of commands and status informationthrough a Superport by the MPI interface.

EBC (EDGE BOARD CONNECTOR)

Allows easy access for removing/installing accessorymodules providing a rail mounted slide-through card.These cards might contain one of the above features.

CONNECTION CENTER ON BACK OF TV

The connection on the back of the TV contains the in-put and output interfaces.

CONNECTION CENTER ON REAR OF TVThe connection center on the rear of the TV allows forconnection of the viewing source. The diagrams list theuse of each jack on the connection center.

1. ANTENNA/CABLE JACK

Use the jack for 75-ohm antenna-type signal connec-tions to the TV. Attach antenna, cable TV line, or othervideo equipment to jack. The input cable may come froman outdoor or master antenna, cable TV line, cable de-coder box, or the RF output from a VCR.

2. SUPERPORT LOCATION

Provides for easy installation of local service provideraccesory module without removing the cabinet and re-ceives operating power and all necessary interface sig-nals through internal connections.

3. MPI (MULTIPLE PROTOCOL INTERFACE) JACK

Standard RJ11 jack to provide interface with in-roomentertainment and video services. Also used with installer’sprogrammer (page 1-5) for programming other TVs inthe system with the same features as the master TV.

4. VIDEO IN AND AUDIO IN

Use the Video and Audio In jacks for baseband videoand audio input signals from a VCR or other signal source.

5. SPEAKER OUT

Use this jack for connection of an 8-ohm extensionspeaker to get television sound at a remote location.The speaker in the TV remains active, while a monauralaudio output is heard from the remote speaker.

6. EBC KNOB

For handling/removal of EBC (Edge Board Card).

VIDEO IN SPEAKER OUT

AUDIO IN

ANTENNACABLE

TVSPKR

PILLOW SPEAKER

MPI



PILLOW SPEAKER INTERFACE

DESCRIPTION

The pillow speaker interface within the TV, provides three remote controllines and an audio output. It is intended for connection to a patient-pendant remote control, or entertainment audio and nurse call system. Alllines are isolated from the AC power line and ground. Isolation of thecontrol lines is provided by optoisolators. These are no relays or inductivecomponents in the control lines. Isolation of the audio output is pro-vided by an isolator transformer.

Purpose of Interface Pins

Pin #1 External TV ON /OFF closure.

Pin #2 Open (not used).

Pin #3 External Channel Up Closure or Data In.

Pin #4 Common for External Control.

Pin #5 Audio Output. The impedance from this pin to earth ground is anominal 10 Megohm static leakage resistor in parallel with an 1100picofarad capacitor.

Pin #6 External Channel Down Closure.

THEORY OF SIMPLE SWITCH MODE

1

2

3

4

56 Sp

eake

r

Volume

ChanUp

ChanDown

TVOn/Off

Mode pins 1, 3, and 6 are connected to pin 4 by way ofmomentary-action switches to activate indicated con-trol function. These pins are 13 Vdc positive with re-spect to pin 14 when the switches are open. Loop cur-rent is 8 mA with the switches closed. Isolated audiooutput is at pins 4 and 5. Mode of operation is identi-cal to previous Zenith models using the 5-Wire Interfacewith the exception of higher open circuit voltage (was7 Vcd ) and higher loop current (was 2.5 mA).

THEORY OF MULTIPLEXED DATA MODE

1

2

3

4

5

6

Power/ Data Separator Serial Data Encoder

Data

Power

PowerData

Common

Spea

ker

Volumecontrol

Com

mon

H H H H

H H H H

Pins 3 and 4 support a built-in interface which allowsmultiple functions on a single wire by means of serialdigital coding. Pin 3 will source up to 2 mA during thedigital "0" interval to supply operating power for thedigital encoder located in the pillow speaker. The codermust sink a minimum of 5 mA to pin 4 during the digital"1" interval and provide the correct serial data stream.Pillow speakers meeting this specification are availablefrom independent manufacturers such as Curbell, Inc.(Manufacturers wishing to produce compatible pillowspeakers or other products should contact Zenith Com-mercial Products for detailed specifications). An isolatedaudio output is at pins 4 and 5.

1 TV ON/OFF2 Open3 Chan Up/Data In4 Common5 Audio Out6 Chan Down

1

2

3

4

5

6



SETTINGS MIN/MAX VOLUME LEVELSUse the following procedure to adjust minimum volumeand maximum volume for pillow speaker. This procedurenot only sets the maximum volume level that the pillowspeaker can produce, but also prevents the TVs volumefrom accidentally being adjusted to level which is toolow or too loud.

1. Connect pillow speaker. Place INT/EXT speaker switchon back of TV in EXT position.2. Set VOLUME control on pillow speaker to maximumvolume position.3. Access Service Menu by following the instructionsgiven in the “Service Menu” section of this book. Selectthe MAX volume. Use the ADJUST key to set highestdesired volume level within the range of 0 to 63. Thiswill be the highest desired volume level, as heard at thepillow speaker.4. Select the MIN volume. Use the ADJUST key to setthe lowest desired volume level within the range of 0 to63. This will be the lowest desired volume level as heardat the pillow speaker.5. Make no further adjustments and exit the ServiceMenu.

The TV is now adjusted for minimum and maximum vol-ume settings. All further adjustments of the TVs volumeshould be made by using the VOLUME control on thepillow speaker.



*Note: Bed 1 - Bed 2 switch on installer/patient remote. The position of the Bed 1-Bed 2 switch must correspond to thesetting in the Installer's menu. The switch above can be set by sliding it to the Bed 1 or Bed 2 position. On the patient'sremote, the Bed 1 or Bed 2 position can be selected by using a paper clip or a ball-point pen to slide the switch to thecorrect position.

Left position = Bed 1.

Right position = Bed 2.

POWERTurns TV ON or OFF.

CC (CLOSED CAPTIONING)Press to access closed captions.Press ENTER to exit.

VOLUME LEFT/RIGHTAdjusts the sound levels.

NUMBERED KEYPADSelects channels directly and

enters numeric values for some options.

MUTETurns sound Off and On, while the picture remains.

FLSHBK (FLASHBACK)Return to the last channel viewed.

CHANNEL UP/DOWNTunes to next available channel

BANKPress and repeat to select to select a Channel Memory Bank - - 1,2,3 or 4 (standby).

BED 1/ BED 2 (*See Note Below) Determines the code set transmitted, Bed 1 or Bed 2. Switch setting must correspond to item 27, HOSPITAL MODE setting in the TV's Intaller Menu.

TIMERPress repeatedly to adjust TV turn-off time up to 4-hours.

Use to pick AM/PM in clock menu.

ENTERPress to view Channel/Time d or to remove any on-screen display or isplay

menu.

TV/FM Selects TV or Radio on

TVs equipped with FM radio.

MENU/Press MENU repeatedly during

on-screen menuoperations to adjust an option.

SELECT/ADJ (ADJUST)

(Right)Press during on-screen menu

operations to adjust an option.

CC

HP602124-00213-06



LT-2000/2002 CLONE PROGRAMMERThe Quick Set II programmer LT2000 or LT2002 allowscustom setup and programming information to be quicklycopied from a master TV into multiple television sets.Once learned from the master, setup data is retained inthe LT2002 for future use and recall.When using the LT2002, operation will be easier if theTV is connected to a good quality signal and displayinga stable picture. To operate the LT2002, use the indi-cated keys on an installer’s remote or user’s remote, orthe front panel keys on the TV receiver.SETUPBegin the programming process by setting up a masterTV set using one of the installer’s remotes or an MBRremote. Follow the instructions in the operating guidefor the specific TV model. Remember to set all featuresthat will be customized including the channel scan list,channel labels, and installer menu setups.Next connect the LT2002 to the master TV set using thecable provided with the programmer. Connect the cablebetween the MPI jack on the TV and the programmer.The TV set automatically activates the programmer.Once connected, check the “Status Indicator” LED onthe programmer. If the indicator is green and flashing (adouble-blink “heartbeat” pattern), proceed to the nextstep.

NOTE: A slowly flashing green light indicates thereis a problem with the communications betweenTV and programmer. In this case, check fordamaged cable, poor contacts, or otherconnection problems. If the status indicatoris red, the programmer batteries are low.

If communications are good, the sign-on screen will bedisplayed on the TV screen as shown on the quick setupinstructions. If the intention is to set the TV’s orprogrammer’s real-time clocks, and not the clone clockor TV clock time settings, then press a key to proceed tothe main clone menu.If a previously stored TV setup is in a particular clonememory, it may be changed if desired by overwriting itwith a new setup. There is no need for a separated memoryclear operation. Setups stored in programmer memoryare nonvolatile and will be retained even after a batterychange.LEARN FROM TVSelect “Learn From TV” then press ON/OFF, POWER, orENTER to begin learning process. Alternatively, use theTV front panel CHANNEL UP or CHANNEL DOWN keys tohighlight choice. Press ON/OFF, POWER, or ENTER to ac-tivate. The next screen will allow a choice of four avail-able memories to store this TV setup. Four different TVsetups can be stored in the LT2002.Using the On-screen menu, choose a memory or chooseto return to the main selection menu. Now press ON/OFF,POWER, or ENTER to activate your selection. The nextscreen allows one last opportunity to check the versionsof TV and clone setups.Press ON/OFF or POWER to activate the learning cycle, orpress any other keys to return to the selection menu tomake another choices.Once a process has begun, the TV screen will display“LEARNING IN PROGRESS”. Please wait for the process tocomplete. When the TV screen displays “LEARNING COM-PLETED”, press any key to end the learning process andreturn to the clone selection menu.TEACH TO TVSelect “TEACH TO TV”, and then press ON/OFF, POWER, orENTER to begin teaching process. Alternatively, use theTV front panel CHANNEL UP or DOWN keys to highlightthe choice and then press ON/OFF, POWER, or ENTER toactivate. The next screen displays a choice of the fouravailable memories that can be copied to the TV. Selectthe desired memory number, and press ON/OFF, POWER,or ENTER to begin the teaching process. Alternatively,use the TV front panel CHANNEL UP or DOWN keys tohighlight choice. Press ON/OFF, POWER, or ENTER to be-gin.

StatusIndicator

Color

Blink pattern

battery OKbattery low

green

slow

red

Reset

MPI


OVERVIEW (continued)Using the on-screen menu, select a memory or return tothe main selection menu. Then press ON/OFF, POWER, orENTER to activate the selection.The next screen allows for one last opportunity to checkthe versions of TV and clone setups. Press ON/OFF orPOWER to activate the teaching cycle, or any other keyto return to the selection menu to make other choices.Once a process has begun, the TV screen will display the“TEACHING IN PROGRESS” message. Please wait for theprocess to complete. When the TV screen displays “TEACH-ING COMPLETED”, press any key to end the teaching pro-cess and return to the clone selection menu.

SET CLONE CLOCK FROM TV

To set the real-time clock in the LT2002, select “SETCLONE FROM TV” and then press ON/OFF, POWER, or EN-TER to copy current TV time to the clone clock. Alterna-tively, use the TV front panel CHANNEL UP or CHANNELDOWN keys to highlight the choice. Then press ON/OFF,POWER, or ENTER to activate.This process will return the LT2002 to the sign-on screento display the clone and TV clock settings. Press a keyto go to the clone selection menu and perform otherfunctions, or simply disconnect if the time setting wasthe last task.SET TV CLOCK FROM CLONETo set the real time clock in the, select “SET TV CLOCKFROM CLONE” and then press ON/OFF, POWER, or ENTERto copy current LT2002 time to the TV clock. Alterna-tively, use the TV front panel CHANNEL UP or CHANNELDOWN keys to highlight the choice. Then press ON/OFF,POWER, or ENTER to activate.This process will return the LT2002 to the sign-on screento display the clone and TV clock settings. Press a keyto go to the clone selection menu and perform otherfunctions, or simply disconnect if the time setting wasthe last task.DISPLAY TV SETUPSelect “DISPLAY TV SETUP”, and then press ON/OFF, POWER,or ENTER to begin the teaching process. Alternatively,use the TV front panel CHANNEL UP or CHANNEL DOWNkeys to highlight your choice. Then press ON/OFF, POWER,or ENTER.The TV screen will display the items in the service menusetups. Use this function to quickly check the TV forcorrect setup. Press any key to clear display and returnto the clone selection menu.DISPLAY CLONE SETUPSelect “DISPLAY CLONE SETUP” and then press ON/OFF,POWER, or ENTER to begin the teaching process. Alter-natively, use the TV front panel CHANNEL UP or CHANNEL

DOWN keys to highlight the choice, then press ON/OFF,POWER, or ENTER to begin.The TV screen will display the memory selection menu.Select the desired memory number, and then press ON/OFF, POWER, or ENTER to display the contents of theselected memory. Alternatively, use the TV’s CHANNEL UPor CHANNEL DOWN keys to highlight the choice, thenpress ON/OFF, POWER, or ENTER to begin.The TV screen will display items in the factory menu setup.Use this function to quickly check contents of a par-ticular clone memory for correct setup. Press any key toclear the display and return to the clone selection menu.

OPERATION NOTESDisconnect the LT2002 from the TV set when the desiredtask has been completed. Disconnecting the clone au-tomatically switches it off. The real time clock contin-ues to run when the main circuits are switched off.After replacing exhausted batteries, or if the program-mer behaves strangely after a static shock, use a paperclip or similar instrument inserted through the small holemarked “RESET” to activate the internal reset switch andrestore normal operation. After reset, check the real-timeclock setting. It may be necessary to reset the clockfrom a TV programmed to the correct time.

The specific microprocessor used in any TV set may bedetermined by activating the service menu. The micro-processor part number appears at the top of the screenwith the service menu is activated. Processors beforethe 221-01006 has limited screen display capability. Theycannot display entire screens as shown in the quick setupinstructions accompanying the LT2002 programmer. Usethe printed menu illustrations on the quick setup sheetas an aid in making programming choices.

3828VD0205B 1-8 CH-FLAT - MENUS

USER MENUS

INSTALLATION SETUPINSTALLER’S REMOTE AND CLONE PROGRAMMERTo perform the installation setup for several TVs, youneed an installer’s remote, such as the HP602Z, and theLT2000/02 Clone Programmer (See page 1-10). TheHP602Z Installer’s Remote allows access to the Installer’sMenu, User Menus, and Source/Channel Banks. TheLT2002 Clone Programmer is used to duplicate a TV’ssetup and install it on one or more additional TVs.Press the POWER key on the Installer remote control toturn on the TV.

SETUP MENUPress the MENU key on the Installer’s remote repeatedlyso that the SETUP MENU appears on the screen.

ADD/DEL/BLNK

LOCK SET

TIMER

CAPTIONS

LANGUAGE

CH. LABELS

C

SETUP MENUAUTO PROGRAM TO PROGRAM

AUTO PROGRAMUsing the SELECT on the remote control, highlight AUTOPROGRAM on the screen. Then press a RIGHT/LEFT Adjustarrow button to reach the AUTO PROGRAM screen.Using the Up Arrow, choose either CABLE TV or OFF-AIRANTENNA. Press a Right of Left Adjust arrow to begin theChannel Search and stores them in memory for user ac-cess.ADD/DEL/BLNKPress the Up Arrow repeatedly to highlight the ADD/DEL/BLNK option. Use the remote to select a channel.ADD/DELETE allows tailoring of the channel scan to elimi-nate unwanted channels and add desired channels thatwere not stored during Auto Programming.Use the number keypad and ENTER to add a deleted chan-nel. Using the RIGHT/LEFT ADJ arrows, pick whether a chan-nel is Added, Deleted, or Blank. Blank is used by hospi-tals and institutions to send music or informationalmessages to an unused channel. When BLNK is selected,screen will be black while audio continues.Select any other channels to be changed, and when fin-ished, press ENTER to close the menu.

CH LABELS (CHANNEL LABELS)Press the MENU key on the remote so that the SETUPMENU reappears. Use SELECT to choose the CH LABELSoption. Pressing either the RIGHT/LEFT ADJ arrow repeat-edly, pick the label you want from the list of availableselections shown in the chart. Select other channels,and when you are finished, press ENTER to remove themenu. You also have the option of creating 20 program-mable labels having five digits each.

CLOCK SETUse MENU repeatedly to show the Setup Menu. Use theUp Arrow to highlight Clock Set. Set the current time;use the Number keypad to enter the hours, then min-utes. For example, enter 06, then 30, to set 6:30 on theclock. Use the TIMER key to specify AM or PM. PressENTER to start the clock and return to TV viewing.

CAPTIONSCAPTION is a feature that allows the TV to receive closedcaptions and/or text options when made available bythe broadcaster.There are two operating modes for captions: quick/muteand standard; if quick mute is selected, pressing the cckey shows the current cc selection.Use the Right/Left arrows to choose any of the follow-ing options: CAPTION 1, CAPTION 2, CAPTION 3, CAPTION4, TEXT1, TEXT 2, TEXT 3, TEXT 4. Press ENTER to closethe menu.

CAPTIONS SETUP

SEL. TYPE

CAPTION LOCK

PRESS SELECT TO CHOOSEPRESS ADJ TO CHOOSE

STANDARDOPER. MODE

TIMERTIMER is a feature that allows TV turn on/off automati-cally each day at the preset time.

LANGUAGE

In the LANGUAGE menu, use the Right/Left arrow tochoose one of the following options: English, Spanishor French.Press ENTER to return to TV viewing.


USER MENUS (continued)

VIDEO MENUPress MENU repeatedly until the Video Menu appears.Your options are:• CONTRAST: Adjusts the contrast of the picture (differ-ence between white and black). Has 64 steps (0 to 63).• BRIGHTNESS: Adjusts the brightness of the picture(amount of white). Has 64 steps (0 to 63).• COLOR: Adjusts the intensity of the color. Has 64 steps(0 to 63).• TINT: Adjusts the tint of the color picture (balancesbetween amounts of red and green in the TV picture).Has 64 steps (0 to 63).• SHARPNESS: Raises or lowers the definition of the TVpicture. The lower the level, the softer the images willappear (adjusts the sharpness of the picture). Has 64steps (0 to 63).• PICTURE PREF: Has two settings; PRESET and CUSTOM.In the Custom mode the brightness, contrast, color andtint can be set to a users particular liking. The presetsettings brings up the factory setting for these con-trols. Preset is selected automatically after an AC powerinterrupt.

BRIGHTNESS

COLOR

TINT

VIDEO MENU

CONTRAST

PICTURE PREF PRESET

SHARPNESS

Use the Up Arrow on the remote control to highlight thesetting you want to change. Press Right/Left arrow toadjust or change the option you have selected.Press ENTER to return to TV viewing, or press the UpArrow to change other options in the video menu.

PARENTAL CONTROLThis optional feature can be used to prevent (block)unwanted programming from appearing on your TV.PARENTAL CONTROL offers the user a wide variety of op-tions and settings that restrict or block programmingthat can appear on the TV. PARENTAL CONTROL allowsusers the capability of defining which program ratingsthey consider acceptable to younger or more sensitive

viewers.PARENTAL CONTROL can be preset and turned on or off bya user who specifies the 4 number password. The numberof hours blocked must also be specified.General audience and children viewer blocks can bothbe programmed into the TV’s memory. Viewer ratings arespecified for both the TV industry and the motion pic-ture industry; both rating systems can be used. The rat-ings are based mainly on children’s ages.

AUX SOURCES

MPAA RATING

AGE BLOCK

CONTENT BLK SET HOURS SET PASSWORD

LOCK ON/OFF

TO BLOCK

OVERVIEWTo ensure complete coverage for all TV programs (moviesand regular TV shows), choose ratings from the MotionPicture Association of America (MPAA) Rating Systemchart and the TV Parental Guidelines Rating System chart(both shown on the next page). Use the AGE BLOCK op-tion for General Audiences and for Children. You can alsoadd additional restrictions from the CONTENT BLOCKmenu.Things to Consider before Setting Up Parental Control:Determine which ratings you consider acceptable forviewing. (For example, if you choose TV-PG, all of themore restrictive ratings will be blocked automatically:the viewer will not be able to see TV-PG, TV-14, or TV-MA rated programming.)Select whether auxiliary video sources will be blocked inthe AUX SOURCES block option. (Blocks signals from VCRs,DVD players, etc. connected to the TV Audio/Video in-put jacks). You could also leave AUX SOURCES unblocked,and then choose allowable ratings.In the CONTENT BLK option, you can block program Con-tent based on individual parameters such as Strong Dia-log, Bad Language, Sex Scenes, Violence Scenes, or Fan-tasy Violence Scenes.You can set PARENTAL CONTROL to be active in the SETHOURS option for up to maximum hours defined byinstaller´s menu (item 22-I), or V-Chip infinite blockingtime restrictions if this feature is enable (item 84-I).Use the number keys on the remote to select a secretpassword in the SET PASSWORD option.



ON-SCREEN DISPLAYSCHANNEL/TIMEPress ENTER. Shows currently selected channel or source,and current time if the clock has been set.

CHANNEL PREVIEW MENUPress SURF. Displays list of the available TV Channels.Guest Parental Control menu (if active) and Video Chan-nel access.Press CHANNEL UP/DOWN to select a channel, then ENTERto go to that channel. Pressing CC will activate the Pa-rental Control Menu.

CHANNEL PREVIEW

CH TO SELECT, ENTER TO QUIT

10 9 8 7 6 5 4 3 2

CC FOR PARENTAL CONTROL

NONEPBS

CBS

NBC

NONENONE

NONE

ABC

NONE

2 2

NBCNBC

CAPTIONS DISPLAYPress CC. Sets and displays the Caption/Text options.See the Captions section on page 1-7.

CC CAPTION 1 IS ON

Don’t forget the password, as it is the only way you canaccess the PARENTAL CONTROL menu and change ratingselections or turn PARENTAL CONTROL off.If you do not want PARENTAL CONTROL to be active allthe time, you can turn it on or off with the LOCK ON/OFFoption.Notes:• You can set different PARENTAL CONTROL viewing

restrictions for general audiences and forchildren-- both can be active at the same time.

• Simply specifying one content block such as SexScenes, will not automatically block another typeof content in the programs from appearing.

• Even if you choose to leave the AUX INPUTSunblocked, the ratings you specify willautomatically restrict the programming thatappears from the video sources.

• You cannot disable PARENTAL CONTROL bydisconnecting the TV from power. Block hours willautomatically reset to the original block timesetting specified if power is disconnected.

• To reset the password, use the installer’s remotecontrol to deactivate the V-Chip in the Installer’smenu (21-I). Exit out of the Installer’s Menu afterdeactivating the Parental Control. Then enterback in and reactivate the V-Chip. Also to resetthe password pressing and hold down menu untilmenu dissapears (about 6 seconds) inmediatlypress 9,8,7,6 and then CC. This will reset Blockhours to 0 and cancel the current 4 numberpassword.

With the PARENTAL CONTROL menu on-screen, use theUp Arrow to choose an option, such as CONTENT BLOCK.Use the LEFT/RIGHT ADJ arrows to show the CONTENTBLOCK menu, to adjust or set the rating for an option.

To block sex scenes, for example, use the “TV-PG andabove” setting. To block dialog, use LEFT/RIGHT ADJarrows to select among UNBLOCKED, TV-PG and above, orTV-14. (See the Ratings Charts for rating meanings.)

After you have selected and adjusted the PARENTAL CON-TROL menu options to your preferences:- Set the number of hours Parental Control will be on.- Set a 4 number password.- Set the Lock On/Off option to either on or off.



RADIO FEATUREPressing the TV/FM key allows the customer to listen theRadio. The Auto Program feature automatically searchesfor all available Radio Stations and marks them as ‘added’so that they may be accessed via the channel Up/Downkey.

In the Auto Program screen:

A message at the top displays “Auto Program” to letthe customer know that they have entered the AutoProgram feature.

To start the Auto Program, press the Left/Right Arrowkey.

Note: While searching for radio stations, all keys aredisabled. This prevents an incomplete AutoProgram procedure. Running the Auto Programwill clear the factory mode, if it was active. Thishappens at the end of the Auto Program. If noradio stations are found, then the followingmessage will appear: “Make sure that the antennais connected, and try again”.

FM ADD/DELAllows tailoring of the station scan results to eliminateweak and unwanted stations. Use FM ADD/DELETE to getrid of unwanted stations or to program back in a previ-ously deleted station.

Note: After using the FM Add/Del function, returnto TV mode (press TV/FM key) before turningthe TV off. This ensures that the FM Add/Delchanges are saved in memory.

FM LABELSUse FM Label to assign a label for the type of radio sta-tion shown in the Music ID display. For example, if thelabel ROCK is assigned to FM station 100.9, then ROCKwill appear in the active stations list next to FM 100.9,whenever the Music ID display is shown. Labels available(besides Blank) include:

CLASSICAL OTHERCOUNTRY RELIGIONJAZZ ROCKNEWS SPORTSOLDIES TALK

101.9 RELIGOUS101.7 COUNTRY101.3 CLASSICAL101.1 NEWS100.9 ROCK100.7 OLDIES100.5 JAZZ100.3 TALK 99.9 SPORTS

MUSIC ID

CH TO SELECT ENTER TO QUIT

TIMER SETUPTurns on the FM Radio’s Sleep Timer menu. Select TIMERSETUP, then press RIGHT/LEFT ADJ to choose the timethe FM radio is to remain on before it turns off. Choosefrom 10 minutes to 4 hours. Once the turn off time hasbeen selected, press ENTER to activate the timer andclose the menu.

RADIO SCREEN SAVERWhen the customer is done with setup, the radio screensaver turns on. The radio screen saver displays the Radiostation, the audio mode, and the time as seen below.

104.1 MONO

10:56 PM

This display is also scrolling down. Once the displayreaches the bottom, it starts back at the top and keepsscrolling down. This scrolling occurs until the Menu keyor the down arrow is pressed.



CHANNEL BANKAllows choosing between one of 4 channel banks.Press SOURCE to change between banks.

BANK 1

PLANNING THE CHANNEL BANKSGenerally, TV channels are grouped into “program pack-ages” with terms that are proposed to the end user. Theuser then opts for a package. Below is an example ofhow TV channels may be grouped.

Channel Bank Program package

1 Basic cable channels

2 Extended cable channels

3 Extended with premium channels

4 Other cable service options

Sometimes only one or two channel banks may be needed.You may leave any unused bank with the channels. How-ever, you may want to leave at least one channel in anyunused bank. Then, if someone selects an unused bank,that channel will assure them that the TV is functional.Note: Some channels left over from factory testing

may still be in the channel banks if you havenot yet run Auto Program.

ADDING/DELETING CHANNELSA previously prepared programming chart is helpful.1. Run AUTO PROGRAM (in the SETUP MENU). The

channels available at your cable/antenna will be

entered in all channel banks (1, 2, 3 and 4).Notes:• Channels previously blanked will be cleared;

channels entered that are not currently availablewill be deleted.

• The Blank Channel feature is global. A channelwill be blanked in all channel banks.

2. Select a channel bank with a remote press SOURCE/BANK (and repeat). The Channel BANK and BANKnumber will be displayed.

3. Use the ADD/DEL/BLNK option (also in the SETUPMENU) to customize your program package. Youmay delete channels or add some that have notbeen entered. You can also Blank a channel toaccommodate an audio-only program source or forin-house communication. The ADD/DEL/BLNKoption has more details.

4. AUX, FM Radio, VCR3, and VCR4 can be addedprovided they have been enabled in the FactoryMenu and the hardware that uses this feature ispresent on the chassis.

5. Repeat steps 2 and 3 to program another channelbank. It is best to do ADD/DEL customizing beforedoing BLANKING. ADD and DEL (not BLNK) can beused independently for channel banks 1, 2, 3, and4).

Note: Adding the channels VCR3 or VCR4 allows theTV to automatically tune to broadcast band channel 3or 4 regardless of what band type is selected. This

3828VD0205B 2-1 CH-FLAT - FACTORY MENU

FACTORY MENU

ACCESSING FACTORY MENUTo access the Factory Menu, press and hold the MENUkey until the User Menu display disappears, then press1937, and then ENTER.

0IMCRKE018A 01.34 01

XX/XX/XX TE = 10110000

00-F

Microcontrollerpart number

ProgramRevision

FontRevision

SN: XXXX-XXXXXXXX UPN: XXX-XXX-XXX-XXX

Build Date TE Status

Factory Option

Serial Number

User Programmable Number

The black bar near the top of screen indicates thepart number of the micro installed on the set, thenext number to the right is the software versionrunning and the last number is the Font VersionUsed in the TV set.

The black square near the bottom of the screenindicates the Serial number of the TV Set (SN), theUser Programmable Number (UPN) and at the lowestpart indicates the date the module went throughthe factory and the Test Equipment status (TE).

Use the SELECT UP/DOWN keys to toggle through allof the adjustements. Use ADJUST to make a changeto the selected item.

FACTORY MENU OPTIONS0-F FACT MENU: Use SELECT UP and DOWN Keys toselect item 00, the Factory Mode. This item is used byFactory when the module is being tested. It has twopositions: 0 and 1. In the field, this item should al-ways be left off (Zero is off).When the Factory Menu is on, the AC Power-On fea-ture is always enabled regardless of the setting of ACON in the Installer’s Menu. The TV set will automati-cally come on when AC is applied.Use the remote to reenter the Factory Menu to turnthe Factory Menu off. The Factory Mode may also beturned off by setting the clock, or running the AutoProgram feature in the customer Set Up menu.

1-F PRESET PX: Stores the video customer menu ad-justments in the nonvolatile memory of the EAROM.Settings for Contrast, Brightness, Color, Tint and Sharp-ness are stored in this manner. 0 is custom and 1 ispreset stored.

2-F PRESET AX: Stores customer Audio menu adjustmentsin the nonvolatile memory of the EAROM. Settings forBass, Treble, Balance, Audio mode, Front Surr andSoundRite are stored in this manner. 0 is custom and 1 ispreset stored.

3-F VERT P0S: Moves On-Screen Displays vertically. TheRange is from 0-30. This adjustment is generally set at15.

4-F H0RZ POS: Moves On-Screen Displays horizontally.Range is from 1-45. Generally set at 9.

5-F RF AGC: (RF Automatic Gain Control) Range is from0-63. 44 is a general setting.Tune in weakest available channel and adjust for a snow-free picture.

6-F HORZ AFC: Range 0-1. Set to 0. 0=AFC2Normal. 1=AFC2 x 3.

7-F AUDIO LEVEL: Audio Attenuation adjustment. Rangeis 0-63. Typical value is 46.

8-F A ATT: Audio Attenuation adjustment. Range is 0-15. Typical value is 9.

9-F A VCO: (Voltage-Controlled Oscillator) Stereo VCO andAudio SAP VCO free running frequency adjustment. Rangeis 0-63. Typical value range 10-39.

10-F A FILTER: (Second Audio Program Voltage-ControlledOscillator) Stereo, SAP, and dBx filter adjustment. Rangeis from 0-63.

11-F A SPECTRAL: Adjustment of stereo separation (3kHz).Range is 0-63.

12-F WIDE BAND: Adjustment of stereo separation(300kHz). Range is 0-63.

13-F RF BRT: (RF Brightness) Sets adjustment range ofcustomer control for brightness in RF mode.Range is 0-63. A typical value is 30.

14-F AUX B-OFFSET: (Auxiliary Offset Brightness) Setsadjustment range of the customer control for brightnessin AUX mode. Range is 0-63. Typical value is 30.

15-F MAX CONTRAST: Sets adjustment range of customercontrol for contrast. Range is 0-63. Typical value is 63.

3828VD0205B 2-2 CH-FLAT - FACTORY MENU

FACTORY MENU(continued)

16-F WHITE COMP: (White Compression) Rage o-1. 0=Enable and 1=Disable

17-F TRAP 3.58: Zero is off and one is on. Set to 1 fornormal TV operation. Set to 0 if Y/C is used or chassishas a comb filter.

18-F 60HZ SW: (60 Hertz Switched) The range is 0 to 2.

19-F PIF VCO: (PIF Voltage Controlled Oscillator) Rangeis 0 to 127.

20-F RF BAND PASS: Sets adjustment range of the cus-tomer control for brightness in therefore mode. Range is0-1. Set to 1.

21-F RED CUT: B&W tracking adjustment. Range is 0-254. Typical value is 70.

22-F GREEN CUT: B&W tracking adjustment. Range is 0-254. Typical value is 70.

23-F BLUE CUT: B&W tracking adjustment. Range is 0-254. Typical value is 70.

24-F GREEN GAIN: B&W tracking adjustment. Range is 0-254. Typical value is 45.

25-F BLUE GAIN: B&W tracking adjustment. Range is 0-254. Typical value is 70.

26-F VERT SIZE: (Vertical Size) Range is 0-254.

27-F HORZ SIZE: (Horizontal Size) This register does nothave any effect.

28-F VERT PHASE: (Vertical Phase) Range is 0-7.

29-F HORZ PHASE: (Horizontal Phase)Range is from 0-31.

30-F AIR AFT: Force to AFC in Air Band.Range is 0/1. Typical value is 0.

31-F EN LA7222: This register does not have any effect.

32-F CUT OFF RESET:

33-F GAW RESET:

34-F RF WHITE ADJ:

35-F BLACK ADJ:

3828VD0205B 2-3 CH-FLAT - INSTALLER’S MENU

INSTALLER’S MENU

ACCESSING INSTALLER´S MENUUsing the optional installer’s remote control can accessinstaller’s menus. Just press and hold MENU (about 8 sec-onds) until the display changes, then press 9, 8, 7, 6,then ENTER. To exit the Installer’s Menu, press ENTER again.Changes you make will be stored in nonvolatile memory.The Installer’s Menu opens with item 00-I, INST. SEQ. Usethe SELECT key to sequence through the available menuitems. Or, access an item directly by entering the linenumber, then pressing MENU. For example, to access theStart Channel option, which is on line 11, press 11, thenMENU. To change a current setting use the Left/RightADJ keys.

0IMCRKE018A 01.34 01

XX/XX/XX TE = 10110000

00-I

Microcontrollerpart number

ProgramRevision

FontRevision

SN: XXXX-XXXXXXXX UPN: XXX-XXX-XXX-XXX

Build Date TE Status

Installer Option

Serial Number

User Programmable Number

The black bar near the top of the screen indicates thepart number of the micro installed on the set, the nextnumber to the right is the software version running andthe last number is the Font Version Used in the TV set.

The black square near the bottom of the screen indicatesthe Serial number of the TV Set. (SN), then the User Pro-grammable Number is the font (UPN) and at the lowestpart indicates the date the module went through thefactory and the Test Equipment status (TE).

The date on the black bar near the bottom of the screenindicates the date the module went through the factory.When the installer Menu appears, it displays the first In-staller Menu item: INSTALLER SEQ.Use the SELECT UP/DOWN keys to toggle through all ofthe adjustments. Use ADJUST to make a change to theselected item.

Detailed Descriptions of Installer Menu Items.

0-I. INSTALLER SEQUENCEGives access to Installer Menu depending on the codeselected.

0 = 9876 1 = 43212 = 1478 3 = 3698

1-I. POWER MANAGE (Power Management)Determines hours of no activity before automatic shutoff.

SECTION 2

The POWER MANAGE function is for saving energy. Whenset to 0, Power Manage is OFF. Settings range from 0 - 7,with 1 - 7 representing the hours that the TV will remainon, unless there has been activity from either the con-trol panel or remote control.

2-I. AC ON (AC Power Switchable)Allows the TV to turn ON just by applying AC power. Press-ing the ON button is not necessary. This is desirable whenthe TV is plugged into a cable box or a power outletcontrolled by a wall switch. Use ADJUST to select 0 or 1,where 0 is the default is OFF, and 1 is ON.NOTE: When set to 1 (ON), the TV does not respond toON/OFF commands from either the remote or the controlpanel, and the SLEEP TIMER is also nonfunctional.

3-I. BAND/AFC (Band/Automatic Frequency Control)There are 8 possible settings for this option:

0 = Broadcast Fixed 4 = Broadcast AFC5 = CATV Fixed 1 = CATV AFC6 = HRC Fixed 2 = HRC AFC7 = ICC Fixed 3 = ICC AFC

Channels are accessed faster when fixed modes are used.The AFC (search modes) should only be used when somechannels are not on nominal frequencies.NOTE: BAND is automatically set by AUTO PROGRAM.

If some channels were not found by AUTO PROGRAM, se-lect the appropriate AFC setting here and add the chan-nels using the ADD/DEL option in the Setup Menu.

4-I. STRT CHANNEL (Start Channel)When active, this function allows you to determine theinitial channel number when the TV is turned ON. Thisfeature is useful for an in-house information channel,since the TV would always select that channel when it isturned on. Setting this to 255 causes the last channelviewed when TV was turned off to be the tuned to chan-nel when the TV is turned on again.

The range of values is 0 - 255. Use (adjust) keys to choosenumbers that determine the start channel.

5-I. CHAN LOCK (Channel Lock)CHAN LOCK is ideal if a cable box (or similar) is the solesource for programming—and the TV must always be onthe same channel. Changing channels with Channel Up/Down or keypad numbers is impossible. Channel Lock isinactive when set to 0 (default).Generally, this feature is used in conjunction with STARTCHANNEL (line 4-I.) where the start channel may, for ex-ample, be set to 3 or 4. If the start channel is 3 then the


INSTALLER’S MENU (continued)

TV will remain on channel 3. NOTE: When CHANNEL LOCKis active and CHANNEL OVERIDE is disabled, AUTO PRO-GRAM is not active.

6-I. GHOST CH (Ghost Channel)When set to 1, the current channel number is displayedin the upper right corner of the CRT. The number movesslightly to prevent damage to the screen. The default is“0” or OFF. NOTE: When captions are on, the “ghost chan-nel” is not displayed.

7-I. START VOLUMEThis function allows the Installer to determine the initialvolume level setting when the TV is turned ON. This fea-ture is useful for an in-house information channel, sincethe TV would always select that volume level when it isturned on. The range of values are 0 - 63, 255. If 255 isselected, the current volume level will be retained inmemory when the TV is turned off; at TV turn on, volumelevel is automatically set to the previous or last level.

8-I. MIN VOLUME (Minimum Volume)This function determines the minimum volume level al-lowable with the VOLUME (VOL) Up/Down control. In thisway, for example, someone cannot set the volume toolow to hear. The range is from 0 to 63—change valueswith ADJUST. The factory default is 0, which provides fullrange of volume control. It may be best to set the samevalue on every TV.NOTE: The minimum volume level cannot have a valuesetting higher than in the MAX VOLUME level (describedbelow).

9-I. MAX VOLUME (Maximum Volume)This function determines the maximum volume level al-lowable with the VOLUME VOL Up/Down control. In thisway, for example, someone cannot set the volume levelhigh enough to disturb others. The range is 0 to 63,with 63 as the default which gives the user the full rangeof volume control. Change values with ADJUST keys. Itmay be best to set the same value on every TV. NOTE: Themaximum volume level cannot have a value setting lowerthan the MIN VOLUME level (described previously).

10-I. MUTE DISABLEEnables or disables sound mute function. When set to 1,sound cannot be muted. When set to 0, sound can bemuted.

11 KEY DEFEAT (Keyboard Defeat)When set to 1, it prevents the end user from accessingscreen menus on the front panel—MENU, SELECT, and AD-JUST do not function. When set to 0, those keys are

functional. The menus can always be accessed with MENUon the remote.

12-I. IR BANKS EN.For direct access to a particular Channel Bank. When en-abled, installer can access a channel bank by inputtingthe IR code for the bank.

13-I. SCAN MODEAllows variation in setting the On/Off with Channel UP/DOWN. You may opt for TV channels only; TV channels +Off/ON; TV channels + FM radio; TV channels + FM radio +Off/On with these settings for Scan Mode:Scan mode Characteristics

0 Channel up/down keys change channels only.1 Channel down below the lowest channel

(orchannel up higher than the highest) and TV turns off.

2 Channel down below the lowest channel (or up higher than the highest) and TV goes to FM radio. Channel down below lowest FM sta tion (or Channel up higher than the highest)

and TV channels return.3 Channel down below the lowest channel (or

up higher than the highest) and TV goes to FM radio. Press channel down below lowest FM station (or Channel up higher than the highest) and TV turns off.

14-I. STRT CH IN SMWhen set to 1, installs TV on/off event below the startchannel at TV turn on.

15-I. SLEEP TIMERWhen set to 1, the SLEEP TIMER feature may be used (butno message is displayed prior to turn-off). When set to0, the sleep timer is not available.

16-I. EN. TIMERSet to 1, timer function is available to user. Set to 0 todisable timer functions. (Clock must be set in order touse Timers.)

17-I. ALARMGives you the option of making the alarm function avail-able to the user. Set to 1, alarm function is available touser. Set to 0 to disable the Alarm function.Note: Clock must be set in order to set the Alarm.

18-I. RADIOSet to 1, for TVs with a Radio. Set to 0 to disable theRadio function, for TVs without a Radio.



19-I. NOT USED

20-I. FEATURE LEVELDefault set to ZEN 1 for Zenith IR remote control opera-tion. Set O, P LBL for Zenith Private Label IR remotecontrol operation. Warning: Do not set to “0” or remotewill not control TV.Installer should leave item 20 FEATURELEVEL, set to 1 (default).

Installer should leave item 20 FEATURE LEVELset to 1 (default).

21-I. V-CHIPSet to 1 to activate V-Chip (Parental Control); have itavailable to user to filter, control, or restrict program-ming content. Set to 0 to turn V-Chip feature off, notavailable to user; no programming restrictions can beset.

22-I. MAX BLK HRSSet to 0 to 99 for the maximum V-Chip (Parental Control)block hours. Default is 12 blocking hours.

23-I. CAPTION LOCKSet to 1 to restore previous caption On/Off state after TVturns off. When set to 0, captions are always off, whenTV is initially turned on.

24-I. TEXT MODEDetermines whether TEXT 1, TEXT 2, TEXT 3, or TEXT 4decoding is enabled when TEXT is turned on (either fromthe Setup Menu or directly with CC on the remote).TIP: Set Text Mode to 1 only if text is offered in yourvideo system.

25-I. FUNCTION PRE.Set to 0 to suppress CHANNEL PREVIEW from the FUNC-TION menu with some Pay-Per-View systems.

26-I. 6 KEY SYSSet to 1 for 6-key front control panels. Set to 0 for 10-key front control panels. Leave default set to 1.

27-I. HOSPITAL MODEThe default is 2 (which favors most hospitals). With thissetting two things are affected: Channel Banks 1, 2, and3 are accessible, while Bank 4 is inactive.

28-I. CH. OVERRIDE (Channel Override)When set to 1, the user can select channels with eitherChannel Up/Down or by direct keypad entry. When set to0, only those channels that are entered for scanning maybe selected by direct keypad entry. Note: If set to 0,Auto Program is locked; (as shown on Setup menu) chan-nel search is not possible.

29-I. OLD OCV (On Command VideoTM)Set to 1 for operation with systems from On CommandCorporation.

30-I. ACK MASKM.P.I. Communication Parameter. Leave at default set-ting unless changed by Pay-Per-View provider.

31-I. POLL RATEM.P.I. Communication Parameter. Leave at default set-ting unless changed by Pay-Per-View provider.

32-I. TIMING PULSEM.P.I. Communication Parameter. Leave at default set-ting unless changed by Pay-Per-View provider.

33-I. NOT USED

34-I. NOT USED

35-I. NOT USED

36-I. NOT USED

37-I. NOT USED

38-I. NOT USED

39-I. REAR VIDEO EN.Set to 1 to enable rear AUX (Video) input.Set to 0 to disable rear AUX input.

40-I. NOT USED

41-I. NOT USED

42-I. NOT USED

43-I. NOT USED

44-I. NOT USED



45-I. NOT USED

46-I. NOT USED

47-I. NOT USED

48-I. DIS. SETUP M.Set to 1 to disable the Setup menu. Setup menu will noappear. Set to 0 to enable the Setup menu.

49-I. NOT USED

50-I. DIS. VIDEO M.Set to 1 to disable the Video menu. Video menu will notappear. Set to 0 to enable the Video menu.

51-I. DIS. VCHIP M.Set to 1 to disable the Parental Control menu. ParentalControl menu will not appear.Set to 0 to enable the Parental Control menu.

52-I. NOT USED

53-I. DIS. CH-TIME.Set to 1 to disable the Channel-Time display. Channel-Time display will not appear.Set to 0 to enable the Channel-Time display.

54-I. EN. SET. COL.Set to 1 to enable custom color settings for the Setupmenu. Set to 0 to disable custom color settings for theSetup menu

55-I. FOR. SETUP M.(Setup Menu Foreground Color)Set according to Color Chart.0 = Black 3 = Yellow 6 = Cyan1 = Red 4 = Blue 7 = White2 = Green 5 = Violet

56-I. BCK. SETUP M.(Setup Menu Background Color)Set according to Color Chart.0 = Black 3 = Yellow 6 = Cyan1 = Red 4 = Blue 7 = White2 = Green 5 = Violet

57-I. NOT USED

58-I. NOT USED

59-I. NOT USED

60-I. EN. VIDEO. COL.Set to 1 to enable custom color settings for the Videomenu. Set to 0 to disable custom color settings for theVideo menu.

61-I. FOR. VIDEO M.(Video Menu Foreground Color)Set according to Color Chart.0 = Black 3 = Yellow 6 = Cyan1 = Red 4 = Blue 7 = White2 = Green 5 = Violet

62-I. BCK. VIDEO. COL.(Video Menu Background Color)Set according to Color Chart.0 = Black 3 = Yellow 6 = Cyan1 = Red 4 = Blue 7 = White2 = Green 5 = Violet

63-I. EN. PTL. COL.Set to 1 to enable custom color settings for the V-Chipmenu. Set to 0 to disable custom color settings for theV-Chip menu.

64-I. FOR. PTL. M.(V-Chip Menu Foreground Color)Set according to Color Chart.0 = Black 3 = Yellow 6 = Cyan1 = Red 4 = Blue 7 = White2 = Green 5 = Violet

65-I. BCK. PTL. M.(V-Chip Menu Background Color)Set according to Color Chart.0 = Black 3 = Yellow 6 = Cyan1 = Red 4 = Blue 7 = White2 = Green 5 = Violet

66-I. NOT USED

67-I. NOT USED

68-I. NOT USED

69-I. EN. CH-T COL.Set to 1 to enable custom color for the Channel-Timedisplay. Set to 0 to disable custom color for the Channel-Time display.



70-I. FOR. CH-T COL.(Channel-Time Display Foreground Color)Set according to Color Chart.0 = Black 3 = Yellow 6 = Cyan1 = Red 4 = Blue 7 = White2 = Green 5 = VioletNote: If foreground and background color are the same,menu background is transparent.

71-I. BCK. CH-T COL.(Channel-Time Display Background Color) Set accordingto Color Chart.

0 = Black 3 = Yellow 6 = Cyan1 = Red 4 = Blue 7 = White2 = Green 5 = Violet

Note: If foreground and background color are the same,menu background is transparent.

72-I. NOT USED

73-I. CH NOT AVBLEWhen set to 1 and channel override is set to 0, “NOTAVAILABLE” message is displayed when direct accessinga channel not in the favorite channel list.

74-I. CH-TIME SIZEWhen set to 1 and transparent background is selectedfor Channel-Time display, (foreground color = backgroundcolor and custom color enabled) a large channel numberis displayed instead of the normal Channel-Time display.

75-I. NOT USED

76-I. DEFEAT XDSSet to 1 to disable XDS display. Set to 0 to enable XDSdisplay.

77-I. QUICK SHUTOFFAllows TV power off to be controlled by the pillow speakerchannel selection button. User would press and hold but-ton down for time required to have TV turn off. ValueRange 0 - 17, each number represents 1/2 second. Forexample, if set to 4, TV would turn off if user held speakerchannel button down for 2 seconds.

78-I. UPN MSBUser programmable number, most significant byte read-able/writeable by M.P.I. command.

79-I. UPN MSB-1User programmable number, most significant byte-1 read-able/writeable by M.P.I. command.

80-I. UPN MSB-2User programmable number, most significant byte-2 read-able/writeable by M.P.I. command.

81-I. UPN LSBUser programmable number, least significant byte read-able/writeable by M.P.I. command.

82-I. CHKSM ERROREnforces rigid M.P.I checksum validation.Set to 1 for validation. Set to 0 to turn off.

83-I. HANDSHK TIMEAdds an additional delay to the handshake time which is64 msec, thus relaxing M.P.I. timing requirements to becompatible with PC based Windows controlled systems,range is 0 - 5. Set to 0 to retain standard 64 msec delay.Set to 1 - 5 to increase @ 16 msec additional, the delayup to 144 msec.

84-I. PERMANENT BLKAllows Parental Control blocking schemes to be perma-nent by removing the blocking hours function.Set to 1 to install Parental Control blocking restrictionspermanently. Set to 0 for user-specified hours control ofblocking schemes.

85-I. NOT USED

86-I. NOT USED

87-I. NOT USED

88-I. EN NOISE MUTEAllows to reduce the volume level automatically with noresignal or weak signal, set to 1 for future enable or todisable.

89-I. POKE ENABLEEnable/disable to write the memory (EAROM) by MPI thruthe command 17 data type 23 hex set to 1 for MPI pokeenable or 0 to disable.

90-I. KEY LOCKEnable/disable the front panel keyboard and pillow speaker.Set to 1 to disable and 0 for enable.



Menu Item Function Value Range Default Value Brief Description of Function and Comments

0-I INSTALLER SEQ 0 - 3 0 Leave defau lt set 0 .

1-I POWER MANAGE 0-7 0 Sets number of hours o f no activity befo re auto shutoff.

2-I AC ON 0/1 0 Set to 1 to enab le auto tu rn on at power up.

3-I BAND/AFC 0-7 0 Tuning band, see detailed descriptions.

4-I STRT CHANNEL 0-255 255 Channel at tu rn-on (255 last Ch).

5-I CHAN LOCK 0/1 0 When set to 1 , cannot tune from current channel.

6-I GHOST CH 0/1 0 Set to 1 to enab le Ghost Channel d isp lay.

7-I START VOLUME 0-63, 255 255 Volume level at TV tu rn-on (Set 255 to retain last vo lume level).

8-I MIN VOLUME 0-63 0 Minimum vo lume setting .

9-I MAX VOLUME 0-63 63 Maximum vo lume setting .

10-I MUTE DISABLE 0/1 0 Set to 1 to d isab le mute function.

11-I KEY DEFEAT 0/1 0 Set to 1 to d isab le Menu, Select, and Adj keys on front panel.

12-I IR BANKS EN. 0/1 0 Set to 1 : enables TV to respond to IR codes to change Channel Bank d irectly.

13-I SCAN MODE 0-3 0 Typ ically used fo r Hosp itals: puts On-Off and FM in Ch Up/Down sequence.

14-I STRT CH IN SM 0/1 0 Set to 1 to put TV on/off below start channel number.

15-I SLEEP TIMER 0/1 1 Set to 1 to enab le Sleep Timer.

16-I EN. TIMER 0/1 1 Set to 1 to enab le Timer.

17-I ALARM 0/1 0 Set to 1 to enab le Alarm.

18-I RADIO 0/1 1 Set to 1 fo r TVs with Rad io .

19-1 NOT USED

20-I FEATURE LEVEL 0/1 1 Zen 1 Leave defau lt set 1 (1 Zen 1)

21-I V-CHIP 0/1 1 Set to 1 to enab le V-Chip

22-I MAX BLK HRS 0-99 12 Select number o f Parental Contro l b locking hours.

23-I CAPTION LOCK 0/1 0 Set to 1 to retain caption setting at tu rn o ff.

24-I TEXT MODE 0/1 1 Set to 1 to add Text option to closed caption menu.

25-I FUNCTION PRE. O 0-3 0 Contro ls channel p review in Pay-Per-V iew function menu.

26-I 6 KEY SYS 0/1 1 Leave defau lt set to 1 .

27-I HOSPITAL MODE 0/1 1 Leave defau lt set to 1 .

28-I CH. OVER RIDE 0/1 1 When set to 0 , limits d irect access to favorite channels.

29-I OLD OCV 0/1 0 OCV shou ld set to 1 .

30-I ACK MASK 0/1 0 M.P.I. communication parameter.

31-I POLL RATE 20-169 94 M.P.I. communication parameter.

32-I TIMING PULSE 186-227 207 M.P.I. communication parameter.

33-I NOT USED

34-I NOT USED

35-I NOT USED

36-I NOT USED

37-I NOT USED

38-I NOT USED

39-I REAR VIDEO EN 0/1 1 Set to 1 to enab le rear AUX video input.

40-I NOT USED

41-I NOT USED

42-I NOT USED

43-I NOT USED

44-I NOT USED

45-I NOT USED

Items in the Installer´s Menu



Menu Item Function Value Range Default Value Brief Description of Function and Comments46-I NOT USED

47-I NOT USED

48-I DIS. SETUP M. 0/1 0 Set to 1 to disable Setup menu.

49-I NOT USED

50-I DIS. VIDEO M. 0/1 0 Set to 1 to disable Video menu.

51-I DIS. VCHIP M. 0/1 0 Set to 1 to disable V-Chip (Parental Control) menu.

52-I NOT USED

53-I DIS. CH-TIME M. 0/1 0 Set to 1 to disable Channel-Time display.

54-I EN. SET. COL. 0/1 0 Set to 1 to enable custom color for Setup menu.

55-I FOR. SETUP M. 0-7 6 Custom foreground color for the Setup menu.

56-I BCK. SETUP M. 0-7 4 Custom background color for the Setup menu.

57-I NOT USED

58-I NOT USED

59-I NOT USED

60-I EN. VIDEO COL. 0/1 0 Set to 1 to enable custom color for the Video menu.

61-I FOR. VIDEO M. 0-7 4 Custom foreground color for the Video menu.

62-I BCK. VIDEO M. 0-7 7 Custom background color for the Video menu.

63-I EN. PTL. COL. 0/1 0 Set to 1 to enable custom color for the V-Chip (Parental Control) menu.

64-I FOR. PTL. M. 0-7 6 Custom foreground color for the V-Chip (Parental Control) menu.

65-I BCK. PTL. M. 0-7 4 Custom background color for the V-Chip (Parental Control) menu.

66-I NOT USED

67-I NOT USED

68-I NOT USED

69-I EN. CH-T COL. 0/1 1 Set to 1 to enable custom color for the Channel-Time display.

70-I FOR. CH-T COL 0-7 1 Custom foreground color for the Channel-Time display.

71-I BCK. CH-T COL 0-7 1 Custom background color for the Channel-Time display.

72-I NOT USED

73-I CH NOT AVBLE 0/1 0 When set to 1 and channel override is 0, "NOT AVAILABLE" message is displayed

when direct accessing a channel not in the favorite channel list.

74-I CH-TIME SIZE 0/1 0 When set to 1 and transparent background is selected for Channel-Time display,

(foreground color = background color and custom color enabled) a large channel

number is displayed instead of the normal Channel-Time display.

75-I NOT USED

76-I DEFEAT XDS 0/1 0 When set to 1, XDS display program information will not appear.

77-I QUICK SHUTOFF 0-17 0 Allows TV timed power off press and hold setup with pillow speaker channel button.

78-I UPN MSB 0-255 255 User programmable number, most significant byte.

79-I UPN MSB-1 0-255 255 User programmable number, most significant byte - 1.

80-I UPN MSB-2 0-255 255 User programmable number, most significant byte - 2.

81-I UPN LSB 0-255 255 User programmable number, least significant byte.

82-I CHKSM ERROR 0/1 1 82-I. CHKSM ERROR 0 / 1 1 Enforces rigid M.P.I. checksum

83-I HANDSHK TIME 0-5 0 Relaxes M.P.I. timing to be compatible with PC based Windows controlled systems.

84-I PERMANENT BLK 0/1 0 Remove block hours setting for Parental Control and make blocks permanent.

85-I NOT USED

86-I NOT USED

87-I NOT USED

88-I EN NOISE MUTE 0/1 1 Set to 1 to reduce volume level with wear signal.

89-I POKE ENABLE 0/1 0 Set to 1 to enable write memory thru MPI.

90-I KEY LOCK 0/1 0 Set to 1 to disable front panel keyboard and pillow speaker.

Items in the Installer´s Menu

3828VD0205B 3-1 CH-FLAT - SERVICING

SERVICING

GENERAL INFORMATIONServicing the CH -Flat chassis.If the set is dead, first check the standby and switchedvoltages. If the switched voltages do not appear, checkthe power “On” circuit. If the power supply is OK andthe set will turn On, the Horizontal sweep circuit shouldbe checked next. Is horizontal drive available from thevideo processor chip? If the sweep system does notstart up, sweep-derived voltages will not be generated.

If the sweep and high-voltage circuits are OK and videoor audio are missing, then the audio/video/tunercircuits should be checked. If the receiver is workingbut some feature is not working, check the Service Menu.Bring up the Service menu and check to be sure that allitems are set correctly.

MODULE-LEVEL SERVICINGThe CH-Flat chassis is Module Level repair only.Replacement modules are available on an exchange basis.

If the CRT or Video processor IC is replaced, Black/Whitetracking must be reset. Refer to the Service Menus sectionof this book for Black/White tracking adjustments.

When troubleshooting video circuits, remember that allvideo travels through the Video/Audio switcher IC. Adefect in either of these IC’s can result in no video.

SERVICING THE POWER SUPPLYCheck the standby voltages first:VDC at CX3412 (usually 169.7 VDC when 120 VCA)+11 VSB at CX3611B+ at CX3850+13V at CX3662

Check the following:Keyboard input at IC6000 pins 7 and 8IR input at IC6000 pin 15Power On output at IC6000 pin 32KX3870 Correct relay operation.Check the switched voltages:+9 VSW at CX3853

SWEEP DERIVED VOLTAGES+25 volts DC at (+) CX2111+33 volts DC at ZD1240+215 volts DC at (+) CX3209

CRT FILAMENTCheck at pin 3 and 4 of connector CN5C2. This shouldread voltages between 6.0 and 6.4 volts AC on a trueRMS meter.

VIDEO PROCESSOR ICX2200Check the following key operating signals and voltages:Luminance at ICX2200 pin 43Chroma at ICX2200 pin 45Horizontal drive at pin 32Vertical drive at pin 22R Out pin 19G Out pin 20B Out pin 21Serial Clock, Serial Data pins 27 and 28 respectivelyVCC 9 volts pins 9,26,46 & 48R in form micro (IC6000) at pin 15G in from micro (IC6000) at pin 16B in from micro (IC6000) at pin 17

MICROPROCESSORCheck the following:IR in on pin 15+5 volts on pin 27 and 18Serial Data, Serial Clock on pins 36 and 38Reset at pin 30Horiz. SYNC pin 1, Vertical SYNC on pin 28 MHz Oscillation at pins 24 and 25.


VERTICAL CIRCUITCheck the following at ICX2100:Vertical drive at pin 1.Vertical out at pin 5.+25 VDC at pin 7.

HORIZONTAL CIRCUITCheck the following:Horizontal drive to base of Q3201 predriver.Driver transformer output at base of QX3200.Shutdown voltage at cathode of D3002.

HIGH VOLTAGE AND X RADIATION PROTECTIONTo prevent possible exposure to x-radiation caused byexcessive CRT anode voltage, the CH-FLat chassisincorporate a “High Voltage Shutdown” circuit. Thiscircuit senses the level of a flyback pulse from the“Flyback Transformer” representative of the actual highvoltage on the CRT anode. When this level exceeds apredetermined voltage, the circuit shuts down the TVset, preventing further generation of anode voltage.

SERVICING (continued)

Shutdown Circuit Operation (Refer to figure below)The flyback pulse voltage from pin 6 of TX3204 (FlybackTransformer) is peak detected (rectified) by the actionof diode DX3001 and capacitor C3002. This form a DCvoltage representative of the CRT anode voltage (HV)produced by TX3201. Precision resistors RX3006 andRX3004, divide this voltage down. This lower voltageappears on the zener diode ZD3000; when this voltageexceeds by 3.5 Vdc the “zener voltage” the HV shutdownoccurs (pin 29 of ICX2200).

Flyback Pulse

IN

RX3209

C3003

DX3001

RX3007

RX3006

RX3005

C3002

ZD3000

R3003

D3002

RM3002 C3001

RM3001 SHUTDOWN

TO PIN 29ICX2200Of TX3201

From Pin 6

OUT

RX3004



NOTE: Each CRT screen size has it’s own safe operatinganode and shutdown voltage. Critical safety component(designated with an ‘X’ in the component designator) aredesigned to operate the CRT at a safe operating anodevoltage and provide proper shutdown thresholds. Ifreplacement of any of these components is deemednecessary, it is important to use original type Zenithcomponents. After replacement is made, confirm properanode voltage using the following procedure.

Measurement of the CRT anode voltage must beperformed using a high impedance-high voltage meter,with no raster on the screen, and operating at nominalhorizontal frequency, 15.75 Khz (NTSC signal).

After discharging the CRT, connect a high impedance-high voltage meter to the CRT anode. Turn the television‘on’ and confirm a good signal is being displayed. ReduceBrightness and Contrast settings until the picture iswell extinguished.

Observe the anode voltage meter reading and comparewith the table below for the proper CRT screen size. Ifthe voltage reading is higher than the maximum, verifycircuit component values and proper operation.

CRT screen size Nominal anode voltage Max. shutdown voltage (KV) (KV)

20" 26 ± 32

CRT Anode Voltage

HV SHUTDOWN PROCEDURE.· After discharging the CRT, connect a highimpedance-high voltage meter to the CRT anode

· Access Video Menu and adjust Brightness andContrast controls for minimum screen luminance (beamcurrent to 0 mA).

· Wait until the Video Menu or display disappears.

· Connect a variable Resistor (1 MW) in parallel withRX3704, and decrease slowly the resistance value untilshutdown occurs.

· Measure High Voltage shutdown.

IF SERVICING

VIDEO DETECTORIf there is no viewable picture on screen, access theService Menu and check default settings for the followingitems:

5-F RF AGC should be at least 40.19-F PIF VCO set to 63.Tune in good off-the-air signal. Place a high-impedancevoltmeter at pin 44 of ICX2200. Adjust item PIF VCO 19-F to 2.5 volts DC.

AGC DELAYWith a strong noise-free antenna signal, adjust RF AGC5-F to a lower setting until the signal gets noisier.Increase the setting again for a noise-free picture.

Note: If the setting is too high (above 50) the tuner inputwill overload. Under certain conditions, beats may alsoappear in the picture.

Tune in strong off air signal. Place a high impedancemeter on pin #54 of ICX2200 or from + side of capacitorC1214. Adjust L1202 for 4 volts DC.

Note: Wait at least five minutes after the set has beenturned on before making alignments.


G2 ADJUSTMENTUse the following procedure when resetting G2.1. Set Brightness and contrast in the Video menu to

mid range.2. Set color level minimum.3. Connect the output of an NTSC generator to the

antenna input on the receiver.4. Select a color bar signal and turn color off. Adjust

the G2 control so that the range of bar patternstart from completely withe (not overdriven) toblack. Let visible 6 of 8 bars.

5. Return color level control to its normal setting.

FOCUS ADJUSTMENT

1. Connect the output of a NTSC generator to theantenna input on the receiver.

2. Select white raster pattern.3. Push menu key of remote control to observe the OSD.4. Adjust focus potentiometer to obtain the best focus

at letters of menu.

ADJUSTMENT OF RGB CUTOFFNOTE: If the Main module or the CRT has been replaced, G2 must be readjusted before adjusting the RGB Cutoff.

1. Enter the Service menu to gain access to thecutoff adjustments. (Factory mode item 00 must

be set to 1 to gain access to this adjustment).2. Set G Gain (Green) and B Gain (Blue) registers in the

Service menu to the default setting for the screensize as listed in the service menu. See table.

3. Set color level and contrast to minimum. Set tint tomid range.

4. Connected the output of NTSC generator to theantenna input of the receiver. Set the generator toa pure white signal, chroma off.

5. Set Factory menu registers #21, #22 and #23 to adjust cutoff controls.

6. Carefully observe which color is predominant on theCRT, Red, Green or Blue. Do not change thevalue of cutoff control of this color.

7. Adjust the other two cutoff controls to obtain colorbalance on the screen.

8. Select the color bars pattern from the Video generatorand turn the chroma off. Check that the TV setdisplays 3/4 of gray scale from white to black. Ifblack level is too high, readjust, register #27, RFBrightness. Do not move Aux. B offset.

9. Return the color level control to preset.10.Disable the factory menu (Factory Mode item 0 must

be set to 0). Select “Preset” in the Video Menu underpicture preference.



PRELIMINARY SETUP1. Allow the receiver to warm up for 15 to 20 minutes.2. Degauss the CRT.3. Connect a crosshatch generator to the receiver and

“rough in” the static (center) convergence. Followthe Convergence Procedure.

4. Adjust for best focus.

PURITY ADJUSTMENT1. Purity tab positioning. Set the 2 pole purity tabs

together in the 3 or 9 o’clock positions and the 4-and 6-pole purity tabs together in the 12 or 6 o’clockpositions.

2. Move yoke to the maximum forward funnel position.3. Next, switch the crosshatch generator to a red field.4. Pull the yoke toward the rear of the CRT neck, keeping

it centered, until a red raster is displayed.5. If the red raster is not displayed as a pure red field,

adjust the 2-pole purity tabs until a pure field isobtained.

6. Check for proper yoke tilt setting.

CONVERGENCE ADJUSTMENT1. Release locking assembly.2. Connect crosshatch generator to the receiver and adjust static (center) convergence as follows:

a. Adjust the 4-pole static control by moving the twotabs separately to converge the red and blue lineshorizontally. Move the two tabs together aroundthe neck of the CRT (in a 45° arc) from the top-dead-center position to converge the red and bluelines vertically.b. After the 4-pole control has been adjusted tosuperimpose the red and blue lines on top of oneanother. Use the 6-pole static adjustment to placethe converged red and blue lines over the greenline. Move the two tabs together around the neckof the CRT (in a 30° arc) from the top-dead-centerposition to move the lines vertically. Adjusting thetwo tabs separately will move the converged beamto the left or right.

PURITY & CONVERGENCE SETUP PROCEDURE

Yoke's Glass Cloth Tape

Wedges' Adhesive Tape (3)

Rubber Wedges (3)

Deflection Yoke

Purity & Convergence Magnet Assembly Unit

6 Pole

Purity Magnet

4 Pole

RingPairs

6 Pole

ConvergenceR&B over G

ConvergenceR over B

4 Pole

Rotation directionof Both Tabs

Opposite

Opposite

Same

Same

Movement of Redand Blue Beams

B

B B

R R

B BR R

B

R ROR

OR

OR

B BR ROR

CRT Ring Location PurityAdjust Tabs Beam Movementfor Convergence




VERTICAL-TILT WEDGE ADJUSTMENTThe vertical lines at 6 and 12 o’clock are converged byvertically tilting the yoke and inserting a wedge at thetop of the yoke until it is firmly seated between the CRTglass and the horizontal coils.

HORIZONTAL-TILT WEDGE ADJUSTMENTThe vertical lines at 3 o’clock and 9 o’clock are convergedby horizontally tilting the yoke and inserting a wedge.

Adjust first at 4 or 8 o’clock, whichever has the largerspace, until the wedge is firmly seated between the CRTglass and yoke coils. Then, insert the 3rd wedge in theremaining horizontal tilt position until it is firmly seatedbetween the CRT glass and yoke coils. Convergence atthe 3 and 9 o’clock should be maintained during thisoperation.

When the 3 wedges are firmly installed and positionedfor acceptable convergence, lock the wedges in placeby applying a 2.5 inches long strip of tape across thetabs of each wedge firmly against the CRT glass. TheCRT glass surface should be clean and free of dust andother foreign material.

UNUSUAL TILT CASEThere may be some instances where the picture tubeand yoke will require vertical tilt in the opposite (up)direction to obtain convergence. In such cases, insertthe vertical tilt wedge at the bottom (6 o’clock)position. Follow through on the horizontal tiltadjustment by using the 2 and 10 o’clock positions andsecure each wedge with a piece of tape, as describedabove.

X

4 Pole Magnets

Clamp and Screw

6 Pole Magnets2 Pole Magnets

IMPROVING CRT CORNER PURITYCRTs that display corner purity problems even afterfollowing the service procedures can be modified witha picture correction kit . The purity can be improved byplacing a picture-correction magnet (included in thekit) on the CRT funnel. Refer to the followingmodification steps and illustration to place the magnetproperly. Fully degauss the CRT before installingcorrection magnets.

MODIFICATION1. Place the magnet on the CRT funnel as shown in the figure displayed below, in the quadrant

exhibiting impurity.2. Rotate the magnet in place to the position shown

for best purity.3. Place a piece of 1/2" by 2" long Fiberglass tape over the magnet to hold it in place.4. Degauss the CRT once magnet is in place to insure

that the magnet is not over the internal magnetshield.

Note: If the magnet is placed over the internalmagnet shield, any apparent purity correctionwill disappear after degaussing. Reposition thecorrection magnet off the internal shield anddegauss again.

2" To 3"

MAGNET

3828VD0205B 4-1 CH - FLAT MODEL PARTS

MODEL PARTS

PART NUMBER DESCRIPTION PART NUMBER DESCRIPTION

170-A01N CPT EARTH 170-A01N CPT EARTH

3091V00B81D CABINET ASSEMBLY 3091V00B81D CABINET ASSEMBLY

3790V00712A WINDOW 3790V00712A WINDOW

3846V00048B MARK 3846V00048B MARK

3141VMNP47D CHASSIS ASSEMBLY 3141VMNP47D CHASSIS ASSEMBLY

6871VSMV74C PWB(PCB) ASSEMBLY,SUB 6871VSMV74C PWB(PCB) ASSEMBLY,SUB

6871VSMV75C PWB(PCB) ASSEMBLY,SUB 6871VSMV75C PWB(PCB) ASSEMBLY,SUB

6871VSMW20K PWB(PCB) ASSEMBLY,SUB 6871VSMW20K PWB(PCB) ASSEMBLY,SUB

6871VMMP46E PWB(PCB) ASSEMBLY,MAIN 6871VMMP46E PWB(PCB) ASSEMBLY,MAIN

3141VSNC61A CHASSIS ASSEMBLY 3141VSNC61A CHASSIS ASSEMBLY

5020V00780C BUTTON 5020V00780C BUTTON

3809V00B08C BACK COVER ASSEMBLY 3809V00B08C BACK COVER ASSEMBLY

3828VA0518B MANUAL,OWNERS 3828VA0518B MANUAL,OWNERS

5016V20002A MAGNET,STICK FERRITE 5016V20002A MAGNET,STICK FERRITE

6140VC8004B COIL,DEGAUSSING 6140VC8004B COIL,DEGAUSSING

6335V21020A CPT ASSEMBLY 6335V21A04H CPT ASSEMBLY

120-C77G SPEAKER,FULLRANGE 120-C77G SPEAKER,FULLRANGE

6411VUH004B POWER CORD ASSEMBLY 6411VUH004B POWER CORD ASSEMBLY

6871VSMV19A PWB(PCB) ASSEMBLY,SUB 6871VSMV19A PWB(PCB) ASSEMBLY,SUB

MODEL: H20H52DT MODEL: H20H52DT8

All CH Flat Models Level repair only. Parts contact information is below.

Voice: 1-888-3-ZENITH

Fax: 1-888-6-ZENITH

201 James Record Road

Huntsville, AL 35824-1513

1

2

3

5

4

6

7

H20H52DT/DT8 Exploded View

5-13828VD0205B CH FLAT SHEET 1

1 2 3 4 5 6 7 8 9 10

REF DESCRIPTION H20H52DT H20H52DT81 CABINET ASSEMBLY 3091V00B81D 3091V00B81D2 SPEAKER, FULLRANGE 6401VC0134M 6401VC0134M3 CHASSIS ASSEMBLY KEYBOARD 3141VSNC61A 3141VSNC61A4 WINDOW 3790V00712A 3790V00712A5 CPT ASSEMBLY (CRT) 6335V21020A 6335V21A04H6 BACK COVER ASSEMBLY 3809V00B08C 3809V00B08C7 CHASSIS ASSEMBLY MAIN 3141VMNP47D 3141VMNP47D

Micro Processor

1 2 3 4 5 6 7 8 9 10

G

D

C

B

E

F

A

6-1CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.

ALL COMPONENTS WITH “M” IN THE DESIGNATORARE A SURFACE MOUNTED COMPONENT.

3828VD0205B CH FLAT SHEET 1

SYNC

AFC

FLYB AC K

VSYNC

TUNE- DETEC T- RADIO

PWR- C TRL

RADIO/ TV- SWITC H

MUTE

SIGNAL- METER + 5 VSB F

+ 5 VSB F

+

+ 5 VSB F

+ 5 VSB F

RM

RM6 0 0 32 .4 K

R6 0 0 4

2 2 K

R6 0 0 8

10 K

RM6 0 6 94 7 0 K

RM6 0 7 04 7 0 K

RM6 0 10PROV

1

2

3

4

5

C N2 K63 6 6 - 9 2 1D

1

L6 0 0 4

1µ H

RM6 0 5 82 2 K

R6 0 16

1K

C M6 0 2 2

5 0 VPROV

C M6 0 4 3

2 5 V0 .0 1

C M6 0 4 2

2 5 V0 .0 1

C M6 0 0 1

5 0 V12 0 pF

RM6 0 0 14 .7 K

C 6 0 3 5PROV

L6 0 0 5

1µ H

R6 0 15

1K

Q6 0 0 2

B

0 TR9 4 5 0 0 9 AAKSC 9 4 5 C - Y

Q6 0 0 1

E

BC

0 TR9 4 5 0 0 9 AAKSC 9 4 5 C - Y

C M6 0 3 6

5 0 V10 0 0 pF

MUTE

C OMP- VIDEO

KEY1- IN

IR- DATA

KEY2 - IN

+ 5 VSB F

+ 5 VSB F+ 5 V

SB

+ 5 VSB F

W6 0 0 2

9 7 1- 16

C M6 0 0 5

5 0 V2 2 0 pF

RM6 0 3 3

JUMPER

ZD6 0 0 29 .1V

0 DZ9 10 0 0 9 AJMTZJ9 .1B

1/ 2 W

RM6 0 3 2

15 K

C M6 0 0 8PROV5 0 V

C M6 0 0 7

10 0 0 pF5 0 V

C 6 0 13

16 V2 2 0 µ F

RM6 0 8 07 5 0 K

C M6 0 0 9

16 V0 .1

C 6 0 9 8

5 0 V4 .7 µ F

R6 0 3 0

JUMPER

C M6 0 9 74 7 0 pF

5 0 V

RM6 0 3 1

1K

C 6 0 0 6

5 0 V1µ F

17

18

19

2 0

2 1

2 2

2 3

2 4

2 5

16

15

C VIN

VHOLD

2 6

RVC O

HLF

VSS

XOUT

XIN

S

AVcc

C NVSS

REMOTE

N.C .

N.C .

L6 0 0 7

4 .7 µ H

R6 0 2 6

10 K

C RY6 0 0 115 6 - A0 1P

8 MHz

L6 0 0 1

4 .7 µ H

R6 0 2 7

2 .2 KC M6 0 0 3

5 0 V4 7 0 pF

C M6 0 10

5 0 V2 0 pF

C M6 0 11

5 0 V2 0 pF

C M6 0 12

2 5 V0 .0 1

C M6 0 3 7

5 0 V2 2 0 pF

C M6 0 4 0

5 0 V18 0 pF

RM6 0 3 41M

RADIO/ TV- SWITC H

FASTB LANK

DEG- C TRL

PWR- C TRL

GB

R

IF

FM- STEREO- IND

IR- DATA

IF

B

DEG - C TRL

FASTB LANK

R

G

IR - DATA

AGC

KEY2 - IN

KEY1- IN

FM- STEREO- IND

LSP+ 11

+ 3 3 V

C M6 0 8 0PROV

5 0 V

C 12 4 1

5 0 V1µ F

C M12 4 2

5 0 V6 8 0 0 pF

ZD12 4 03 3 V

1/ 2 W

0 DZ3 3 0 0 0 9 DF

MTZJ3 3 B TU12 4 06 7 0 0 NFNS11C

TAEU- H0 0 1P

123458 7 69

C N10 VGA1

1

3 8 7 - A10 C

M6 0 3 3

5 0 V4 7 pF

0

RM6 0 4 74 .7 K

RM6 0 4 84 .7 K

RM6 0 5 1

10 0

5 2

TUN

E-D

ETEC

T-R

AD

IO

+ 5 VSB F

+ 5 VSB F

+ 5 VSB F

5 VSB F

+ 5 VSB F

RM6 0 0 910 0

RM6 0 0 2

18 0

6 0 6 1

2 K

C M6 0 3 8

5 0 V4 7 pF

C M6 0 6 0

5 0 V4 7 pF

C M6 0 5 95 0 V4 7 pFC M6 0 5 8

5 0 V4 7 pF

RM6 0 0 54 .7 K

RM6 0 9 0

1K

D6 0 0 20 DD4 14 8 0 9 ED1N4 14 8

RM6 0 0 6

15 0

C M6 0 0 2

5 0 V4 7 pFC M6 0 7 9

5 0 V4 7 pF

C M6 0 9 3

5 0 V4 7 pF C M6 0 9 0

5 0 V4 7 pF

3 914

4 6

4 5

4 4

4 3

4 2

4 1

4 013

12

11

10

9

8

7

5 2

5 1

5 0

4 9

4 8

4 76

5

4

3

2

1

G

R

B

FB

N.C .SWITC H

VERT- SIZE

N.C .

N.C .

MUTE

A/ D_ KEY1

SC L1

DEG- C TL

SPI- DIN

A/ D_ KEY2

AFC

HSYNC

SIGN- MTR

N.C .

SP1C LK

N.C .

RADIO/ TV

HORZ- SIZESYNC

VSYNC

N.C .

N.C .

SP1DOUT

FMSD

IC 6 0 0 0M3 7 2 7 6 MF

1

0 IMC RMI0 4 2 A

C M6 0 9 5

5 0 V4 7 pF

RM6 0 3 66 .8 K

C M6 0 5 44 7 pF5 0 V

RM6 0 1410 0 K

E

C

10

SHIELD4 8 14 V0 0 3 4 7 A

C M6 0 2 3

5 0 V4 7 pF

C M6 0 2 4

5 0 V4 7 pF

C M6 0 2 5

5 0 V4 7 pF

C

C M6 0 4 1

4 7 pF 5 0 VC M6 0 5 0

C M6 0 5 1

4 7 pF5 0 V

C M6 0 5 2

4 7 pF5 0 V

C M6 0 5 3

4 7 pF 5 0 V

C M6 0 5 54 7 pF5 0 V

C M60 9 1

5 0 V4 7 pFC M6 0 9 2

5 0 V4 7 pF

C M6 0 9 4

4 7 pF 5 0 V

RM6 0 3 83 .3 K

RM6 0 4

10 0

RM6 0 4 4

2 2 0

RM6 0 4 54 .7 K

RM6 0 4 64 .7 K

RM6 0

10 0

+ 5 VSB F

+ 5 VSB F

+ 5 VSB F

RM6 0 0 74 7 0 K

R6 0 9 9

10 0

RM6 0 3 9

2 2 0

3 4

3 5

3 6

3 7

3 8

2 8

2 9

3 0

3 1

3 2

3 3

2 7

POWER

OSC - IN

MPIDAout

OSC - OUT

MPIDAin

Vcc

IDENT

RESET

SDA2

TEREO- IND

SDA1

SC L2

R6 0 11

10 0

R6 0 13

10 0

C 6 0 16

5 0 V2 .2 µ F

D6 0 0 10 DD4 14 8 0 9 ED1N4 14 8

8

7

6

54

3

2

1IC 6 0 0 1

AT2 4 C 0 8

14

0 IAL2 4 0 8 0 0 A

IC 6 0 0 2

KIA7 0 4 2 P( AT)

GND

VC C OUT

0 IKE7 0 4 2 0 0 B

L6 0 0 2

1.8 µ H

C 6 0 2 0

5 0 V4 .7 µ F

L6 0 0 3

1µ H

R6 0 4 1

2 2 0

R6 0 4 3

2 2 0

C RY6 0 0 2PROV

C M6 0 14

5 0 V2 7 pF

C M6 0 15

5 0 V2 7 pF

C M6 0 17

16 V0 .1

C M6 0 1810 0 0 pF

5 0 V

C M6 0 19

5 0 V18 0 pF

C M6 0 2 1

2 5 V0 .0 1

4 7 pF 5 0 VC M6 0 4 9

4 7 pF 5 0 VC M6 0 4 8

4 7 pF 5 0 VC M6 0 4 7

4 7 pF 5 0 V

C M6 0 4 6

5 0 V4 7 pF

C M6 0 4 5

5 0 V4 7 0 0 pF

C M6 0 5 6

2 5 V0 .0 1

C M6 0 9 9

5 0 V4 7 pF

RM6 0 3 51M

RM6 0 3 7

2 7 K

RM6 0 4 2

2 2 0

RM6

2 2

RM6 0 5 94 .7 K

RM6 0 6 04 .7 K SC L

SDA

AGC

VSYNC

FLYB AC K

SC L

SDA

SYNC

AFC

VERT- DRIVE

C OMP- VIDEO

+ 5 VSB F

+ 5 VSW

C 12 4 0

2 2 0 µ F16 V

R6 0 7 24 .7 K1%

L12 4 03 3 µ H

HOSPGND6 6 3 0 UZ0 2 6 0 1

C NGND1

3 8 7 - 9 0 7 E C M12 4 3

2 5 V0 .0 1

C 12 4 6

5 0 V4 .7 µ F

C M12 4 5PROV

5 0 V

C M12 4 4PROV

5 0 V

3

10

11

5 V

9

8

7

6

5

4

5 V

NC

1

SC L

SDA

AS

NC

AGC

2

NC

IF

3 3 V

1

5

4

3

2

1

6

C N4 G93 6 6 - 9 2 1E

1

0 4 9

0 RM6 0 5 0

2 2 0

C 12 4 7

16 V0 .0 1

W12 5 0PROV

C 12 4 9

5 0 V0 .1

TP6 0 0 4

TP6 0 10

TP6 0 14

TP6 0 0 7

TP6 0 0 6

TP6 0 0 8

TP6 0 0 9

TP6 0 13

SHT. 6

SHT. 6

SHT. 4

SHT. 3

SHT. 2

SHT. 6

SHT. 2

SHT. 2

SHT. 2

SHT. 2

SHT. 2

SHT. 7

SHT. 7

SHT. 2

SHT. 7

SHT. 4

SHT. 2

SHT. 2

SHT. 5

SHT. 2

SHT. 2SHT. 2

SHT. 5

SHT. 2, SHT. 5

WF

1

WF

2

WF

3

WF

4

WF

5

FW 6

WF

7

WF

8

10 uS

3.60V

WF3

5uS

5.0V

WF5

20 uS

2.34V

WF4

1uS

WF6

4.88V

4.48V

5mS

WF2

4.88V

20uS

WF1

20 mS

WF7

5V

20mS

5V

WF8

Video Processor

1 2 3 4 5 6 7 8 9 10

G

D

C

B

E

F

A




SIGNAL- METER

C OMP- AUD

AGC

B

R

AGC

IF

G

FM/ IF- OUT

SIGNAL- METER

C OMP- AUD

FASTB LANK

VF+ 9

Q12 0 0

E

B

C

0 TR9 5 9 0 0 9 AAB F9 5 9

C M12 0

5 0 V6 8 0 0 pF

RM12 123 .3 K

RM12 2 6PROV

R12 0 910 0

RM12 0

10 0L12 0 10 .8 2 µ H

C 12 0 7

5 0 V0 .4 7

RM12 0 72 2

RM12 0 5

10 0RM12 0 33 9 0

RM12 0 83 3

R12 0 41.5 K

RM12 0 210 0

C M12 0

5 0 V10 0 0 p

C M12 0 2

2 5 V0 .0 1

C M12 0 3

5 0 V10 0 0 pF

C M12 0 1

5 0 V10 0 0 pF

R12 2 5

3 9 K

RM2 2

3 9 0

C 2

5 01µ F

RM2 2

10 0

C M2 2 13

2 5 V0 .0 1

C M2 2

5 04 7 p

RM

C

51

3 4

3 3

3 2

3 1

3 0

2 9

1

2

3

4

5

4 1

4 0

3 9

3 8

3 7

3 6

3 5

6

7

8

9

10

11

12

13

4 9

4 8

4 7

4 6

4 5

4 4

4 3

4 2

14

15

17

16

18

19

2 0

2 1

5 6

5 5

5 4

5 3

5 2

5 1

5 0

2 2

2 3

2 4

2 5

2 6

2 7

2 8

N.C .

SDN- OUT

GOSD

SIF

AGC FIL

RF- AGC

N.C .

EXT- AUD

DE- EMPH

AUDIN

LIMITER

PIFGND

PIF- IN

PIF- IN

PIFVC C

LOOPFIL

SIFGND

PIFTANK

PIFTANK

SIF/ VC C

TV/ DET

APC FIL VC C

VC XO C IN

AFT

YIN

DC

GND

FB LNK

ROSD

B OSD

D- VC C

ROUT

SHUTDOWN

B OUT

GOUT

VSW- OUT

B LK/ DET

VIN

AC L

TV- IN

AB L

VPULSE

NFB

VRAMP

VSEPFIL

HVC C

SC L

DGND

3 2 FH

HAFC

H- OUT

SYNC

FLYB AC K

SDA

IC X2 2 0 00 ITO12 6 8 0 0 A

1

TA12 6 8 N

C OMP- VIDEO

VERT- DRIVE

VNFB

C OMP- VIDEO

AFC

SYNC

FLYB AC K

SDA

SC L

VF+ 9

VF+ 9

VF+ 9

VF+ 9

+ 9 VF

GND

B - OUT

G- OUT

R- OUT5

4

3

2

1

C N2 C 5 B

1

3 6 6 - 9 2 1D

SC L

RM2 2 0 1

3 .3 K

R 2 2 0 0

0 .1

RM2 2 0 3

3 .3 KRM2 2 0 5

3 .3 K

RM2 2 0 61K

RM2 2 0 41K

RM2 2 0 21K

RM2 2 0 8

2 2 0

RM2 2 0 98 2 0

RM2 2 101.5 K

RM2 2 128 2 0

RM2 2 131.5 K

SDA

RM2 2 158 2 0

RM2 2 161.5 K

RM2 2 14

2 2 0

RM2 2 11

2 2 0

Q2 2 0 0

E

BC

0 TR7 3 3 0 0 9 AAKSA7 3 3 C - Y

Q2 2 0 1

E

BC

0 TR7 3 3 0 0 9 AAKSA7 3 3 C - Y

Q2 2 0 2

E

BC

0 TR7 3 3 0 0 9 AAKSA7 3 3 C - Y

VF+ 9

VF+ 9

15 6 - A0 1B3 .5 7 9 MHz

R2 2 2 1

10 0

C M2 2 10

5 0 V0 .0 2 2

C M12 0 8

5 0 V0 .0 2 2

C 2 2 0 1

5 0 V0 .1C 2 2 0 2

5 0 V0 .1

C 2 2 0 3

5 0 V0 .1

C M2 2 0 5

2 5 V0 .0 1

C 2 2 0 8

5 0 V2 .2 µ F

C M2 2 0 0

5 0 V12 pF

C 2 2 0 9

16 V10 0 µ F

C 2 110

5 0 V1µ F RM2 113

4 7 K

RM2 2 0 710 K

C M2 2 0 4

5 0 V4 7 pF

R2 2 2 0

10

R2 2 2 2

10 0

R2 2 175 6 0

C 2 2 0 6

5 0 V4 .7 µ F

C M2 112

2 5 V 0 .0 1

SYNC

SHUTDOWN

FLYB AC K

HORZ- DRIVE

EXT- VIDEO

SHUTDOW

HORZ- DRIVE

EXT- VIDEO

AB L

SW+ 9 V

SW+ 9 V

VF+ 9

VF+ 9

SW+ 9 V

Q2 2 0 3

E

B

C0 TR9 4 5 0 0 9 AAKSC 9 4 5 C - Y

R2 2 4 9

4 7

2 9

D2 2 0 2

0 DD4 14 8 0 9 ED1N4 14 8

C M2 2 15

5 0 V4 7 0 pF

RM2 2 2 5

3 .9 K

2 19

V

5 0 Vµ

D2 2 0 00 DD4 14 8 0 9 ED1N4 14 8

RM2 2 4 1

4 7 0 K

14

VF RM2 2 2 3

15 K

RM2 2 3 0

10 KC 2 2 2 0

5 0 V0 .1

C 2 2 2 1

5 0 V0 .1

1K

D2 2 0 40 DD4 14 8 0 9 ED

1N4 14 8

C R2 2 0 116 6 - E0 2 G

C SB 5 0 3 F3 0

R2 2 3 9

10 0

RM2 2 3 313 K

C 2 2 2 4

5 0 V0 .1

10 0

C M2 2 17

2 5 V0 .0 1

R2 2 3 2

1K

RM2 2 3 1

1K

R2 2 9 2PROV

2 2 18

0 Vµ F

D2 2 0 1

0 DD4 14 8 0 9 ED1N4 14 8

RM2 2 2 61K

RM2 2 2 8

2 .2 K

C 2 2 16

5 0 V1µ F RM2 2 3 610 K

D2 2 0 30 DD4 14 8 0 9 ED

1N4 14 8

R2 2 9 1PROV

R2 2 9 0

PROV RM2 2 3 72 .7 K

RM2 2 3 4

1K

C 2 2 9 0

2 5 VPROV

R2 2 4 06 8 0

C 2 2 2 3

16 V10 0 µ F

C 2 2 2 2

5 0 V10 µ F

RM2 2 3 510 0 K

Q2 2 0 7

E

BC

PROVKSA7 3 3 C - Y

Q2 2 0 5 C0 TR7 3 3 0 0 9 AA

KSA7 3 3 C - Y

Q2 2 0 4E

BC

0 TR7 3 3 0 0 9 AAKSA7 3 3 C - Y

RM2 2 3 81.6 K

R2 2 2 7

4 7 0

R2 2 2 4

4 .7 K

C 2 2 3 9

5 0 V4 .7 µ F D2 2 0 5

1N4 14 80 DD4 14 8 0 9 ED

+ 9 VPIF

+ 9 VPIF

+ 9 VPIFSW

+ 9 V

RM12 10

10 K

C R2 2 0 0

9

RM12 3 1PROV

RM12 1110 K

6

RM12 13

7 5 0

C 12 12

5 0 V0 .4 7

C 12 10

16 V4 7 0 µ F

L12 0 0

12 0 µ H L12 0 26 14 0 VH0 0 0 9 A

4 .5 MHz

C M12 11

5 0 V10 0 0 pF

M

U12 0 06 2 0 0 C 0 0 0 0 2 8

M19 6 2 M

C M12 0 0

2 5 V0 .0 1

C M12 0 5

2 5 V0 .0 1 C 12 0 6

5 0 V0 .4 7

4

F

RM12 0 1

10 KRM12 0 012 K

TP12 0 0

AUD- MONO- IN

+ 9 VSIF

SW+ 9 V

+ 9 VSIF

+ 9 VSIF

+ 9 VSIF

+ 9 VF

VF+ 9

SW+ 9 V

Q12 0 1

E

BC

0 TR9 4 5 0 0 9 AAKSC 9 4 5 C - Y

Q12 0 2

E

BC

0 TR9 4 5 0 0 9 AAKSC 9 4 5 C - Y

C M12 13

5 0 V4 7 0 0 pF

RM12 2 015 0

C 12 14

5 0 V4 .7 µ F RM12 2 1

2 2 0

C M12 18

5 0 V12 0 pF L12 0 4

10 µ H

L12 0 7-

C M2 2 3 7

5 0 V2 2 0 pF

RM12 154 .7 K

C M12 17

5 0 V4 7 pF

RM12 1610 K

RM12 178 2 0

RM12 18

2 2 0 U12 0 2

6 2 0 0 C 0 0 0 0 2 74 .5 MHz

TPS4 .5 MB 9

RM12 19

15 0

L12 0 5

12 µ H

C M12 15

2 5 V0 .0 1

L12 0 3

10 µ H C 12 16

16 V10 0 µ F

TP12 0 1

AFC

VF+ 9

VF+ 9

VF+ 9

VF+ 9

+ 9 VSIF

RM12 2 2

1K

R2 2 5 5

10 0

L12 0 66 14 0 VH0 0 0 9 B

RM2 2 5 73 9 K

RM2 2 5 210 0

C 2 2 2 5

10 F

C 2 2 2 6

5 0 V1µ F

RM12 141K

C 12 2 2

16 V2 2 0 µ F

9 7 1 16

4 3

K

RM12 2 43 9 K

C M2 2 3 6

5 0 V2 2 0 pF

2 2 4 2

C M2 2 9 2

5 0 V4 7 0 pF

C M12 19

2 5 V0 .0 1

U12 0 16 2 0 0 C 0 0 0 0 2 64 .5 MHzSFSH4 .5 MDB

RM2 2 4 5

RM2 2 4 815 0

C M12 2 4

16 V0 .1

C M2 2 2 5PROV5 0 V

RM12 2 310 0 K

C M12 2 1

2 5 V0 .0 1

C M12 2 3

5 0 V10 0 0 pF

C 2 2 2 7

5 0 V0 .1

C M2 2 3 1

5 0 VPROV

C M12 2 0

5 0 V0 .0 2 2

C M2 2 3 5

5 0 V2 7 pF

L2 2 0 14 .7 µ H RM2 2 5 6

PROV

C M2 2 3 4

5 0 V2 2 0 pF

RM2 2 5 3

4 7 0

RM2 2 4 615 0

C M2 2 2 8

5 0 V12 0 pF

L2 2 0 012 µ H

RM2 2 4 40

C M2 2 9 1

5 0 VPROV

RM2 2 4 7

10 0

E

B

Q2 2 0 6EB

C

KSA7 3 3 C - Y0 TR7 3 3 0 0 9 AA

TP12 0 3

SHT. 1

SHT. 6

SHT. 1

SHT. 1

SHT. 1

SHT. 1

SHT. 1

SHT. 1

SHT. 3

SHT. 1

SHT. 1

SHT. 1

SHT. 1

SHT. 1

SHT. 5, SHT. 1

SHT. 5

SHT. 5

SHT. 6

SHT. 3

SHT. 5

WF

9

WF

10

WF

11

WF

15

WF

14

FW

13

WF

1220 uS

WF10

3.82V

20 uS

WF9

4.62V

20 uS

WF11

0.808V

20 uS

WF14

1.68V

9.7V

WF15

20 uS

0.45V

WF12

20 uS

20 uS

WF13

0.77V

Audio Amplifier

1 2 3 4 5 6 7 8 9 10

G

D

C

B

E

F

A




EXT- VIDEO

PILLOW- SPEAKER

AUD- AUX- IN

C OMP- AUD

MUTE

AUD+ 13 V

C 14 0 2

5 0 V4 .7 µ F

R14 0 4

1.2 K

R2 9 0 1

4 7R2 9 0 27 5

ZD2 9 0 1

MTZJ9 .1B

1/ 2 W9 .1V0 DZ9 10 0 0 9 AJ

1

2

3

C N9 M43 6 6 - 9 2 1B

1

RM8 2 22 2 K

RM8 2 1

3 3 K C M8 2 210 0 0 pF

5 0 V

C 8 2 5

2 5 V4 7 0 µ F

C 8 0 2

2 5 V10 0 0 µ F

C 8 16

5 0 V0 .1

C 8 2 4

5 0 V0 .1

C 8 0 1

5 0 V0 .1

R8 2 43 .3

1

2

3

4 5

6 78

IC 8 0 1TDA7 2 6 7

0 IC TMSG0 0 2 A

12 W

4

RM8 3 2

0Q8 0 0

E

BC

KSC 9 4 5 C - Y0 TR9 4 5 0 0 9 AA

C 8 0 0

2 5 V10 0 µ F

R8 0 0

3 3 0

VIDEO IN

SPEAKER OUT

AUDIO IN

TV SPEAKER/ PILLOWSWITC H

14

15

16

17

18

19

2 0

2 1

2 2

2 3

JP16 6 13 V0 0 0 17 A

TP8 0 5

TP8 0 3

SPEAKER

SHT. 2

SHT. 1

SHT. 7

SHT. 2

SHT. 6

Power Supply

1 2 3 4 5 6 7 8 9 10

G

D

C

B

E

F

A




+ 9 VSW

SW+ 9 V

+ 5 VSW

SW+ 5 V

+ 13 VAUD

AUD+ 13 V

+ 13 VSW

+ 13VSW

RX3 7 0 2

3 3 K

RX3 7 0 4

1%6 .2 K

RX3 7 0 3

0 .1%1/ 4 W3 .5 7 K

C X3 6 6 2

16 V2 2 0 0 µ F

IC X3 8 5 1

KIA7 8 R0 9 API

GND

OUTIN

C TL

0 IMC RKE0 0 2 B4 0 8 - 0 0 8 Q

4 9 2 1V0 0 2 3 7 B

IC X3 8 5 5

KIA7 8 R0 5 API

GND

OUT5 VIN

C TL

0 IMC RKE0 18 A

RX3 8 6 1

2 WPROV

RX3 8 5 2

10 K

RX3 8 5 6

10 K

S FLX3 8 5 1

15 0 - C 0 2 F8 2 µ H

S FLX3 8 5 2

15 0 - C 0 2 F8 2 µ H

C X3 8 5 1

16 V4 7 0 µ F

C X3 8 5 6

10 V4 7 0 µ F

C X3 8 5 3

16 V4 7 0 µ F

C M3 8 5 2

5 0 V0 .1

C M3 8 5 5

5 0 V0 .1

RX3 8 5 0

2 W18 K

3 8 5 0

Vµ F

RX3 8 5 1

2 W2 .2

DX3 8 5 5

1N4 0 0 3 E0 DR14 0 0 3 9 AC

DX3 8 5 6

1N4 0 0 3 E0 DR14 0 0 3 9 AC

B +

B +

VE

VE

VE

RC

A IC X3 7 0 1

KA4 3 1LZ

R

0 IC TMFA0 0 1A

FB 3 6 6 1

6 2 0 0 JB 8 0 11T0 .7 9 3 µ H

RX3 7 0 11K1/ 2 W

C X3 6 7 1

10 0 0 V10 0 0 pF

DX3 6 6 2

RU4 AM0 DD4 10 0 0 0 AD

RX3 7 5 516 2 K0 .1%RX3 7 5 2

5 6 0 K

RX3 7 5 6JUMPER0 .1%

6 6 1

12 5 VLOW

7 3 0 0 3Y LITTLEFUSE

1A2 8 2

3 6 6 0

4 AM10 0 0 0 AD

X3 6 7 0

10 0 0 V4 7 0 pF

C X3 6 6 0

16 0 V2 2 0 µ F

C X3 7 0 2

5 0 V0 .4 7

SFLX3 8 5 0

15 0 - C 0 2 F8 2 µ H

C X

16 010 0

S- 5 - 0 2 5 - H

2 5 0 VLOWSave Fuset ech

1B 8 4 B

RX3 7 5 418 01%RX3 7 5 33 .5 7 K0 .1%

+ V2

2 2

2

+ VD211 1

1

2

RC

A IC0 IK

R

RX3 6 5 1

2 W2 2 K

RX3 6 0 23 3 K

C X3 6 0 2

5 0 V4 .7 µ F

C X3 6 0 4

5 0 V4 7 0 pF

C X3 6 0 3

5 0 V2 2 0 pF

X3 6 5 5

1K

C X3 6 5 2

5 0 V10 0 0 pF

DX3 6 5 1

0 DSGF0 0 0 19 A1N4 14 8

DX3 6 5 2

0 DSGF0 0 0 19 A1N4 14 8

RX3 6 5 2

2 .7 K

DX3 6 5 3

0 DRGF0 0 10 4 AGUF10 J

C X3 6 5 54 7 0 pF

5 0 V

12

14

7

8

13

5

3

1

9

16

TX3 6 7 0

1

EER3 9 4 0

6 17 0 VMC A4 3 H

3

4 1

2

IC X3 7 5 00 ILI8 17 0 0 0 GLTV8 17 M

1

C X3 6 5 44 7 0 pF

5 0 V

RX3 6 5 43 .3 K

RX3 6 5 3

101/ 2 W

LT0 I

MTZJ5 .6 B

1/ 2 W5 .6 VPROV

CO

LD S

IDE

HO

T SI

DE

2

2

2

22

22

FB 3 6 5 2

6 2 0 0 JB 8 0 11U

2 .0 3 8 µ H

FB 3 6 5 0

6 2 0 0 JB 8 0 11T0 .7 9 3 µ H

FB 3 6 5 1

6 2 0 0 JB 8 0 11T0 .7 9 3 µ H

R

RX3 6 5 6

2 W0 .16

C X3 6 5 0

16 0 0 V15 0 0 pF

FB 3 6 5 2 A

B FD3 5 6 5 R2 F12 5 - 12 3 A

5

4

3

1

2

IC X3 6 7 0

STR- F6 6 5 4 R( LF13 5 2 )

OC P/ FB

GND

VIN

0 ISK6 6 5 4 13 C4 9 2 0 V0 0 0 8 2 E

D

S

4 9 2 1V0 0 2 3 7 C

C X3 6 5 1

1KV2 7 0 pF

C X3 6 5 3

5 0 V2 2 0 µ F

DX3 6 5 5

SB 14 00 DRGF0 0 0 6 9 A

STR- F6 6 5 4 R

SANKEN

C OLD SIDE

HOT SIDE

C OLD SIDE

+ 13VSW

X3 7 5 1C TMFA0 0 1AA4 3 1LZ

RX3 7 5 11.5 K

1/ 2 W

RX3 7 5 0

1.5 K1/ 2 W

FX3

3 ASLOW B

Type 4MFD B

0 FT3 0 0

FB 3 6 6 0

6 2 0 0 JB 8 0 11U2 .0 3 8 µ H

FB 3 6 6 0 A

B FD3 5 6 5 R2 F12 5 - 12 3 A

DX

RU0 DD4

C

3

4 1

2

IC X3 7 0 0

V8 17 M- VB 1LI8 17 0 0 0 G

FX3 6 6 1A

Type S

2 .5 ASLOW BMfd by

0 FS2 5 0

C X3 7 5 1

5 0 V0 .0 2 2C X3 7 5 0

5 0 V2 2 0 pF

HOT SIDE

C OLD SIDE

2

+ V1

C X3 4 0 6

4 0 0 V4 7 µ F

RX3 6 0 0

2 W10 0 K

C X3 4 0 7

10 0 0 V4 7 0 pF

C X3 6 0 0

6 3 0 V0 .1

DX3 6 0 0

GUF10 J0 DRGF0 0 10 4 A

1%6 .2 K

PWR- C TRL

DEG- C TRL

+ 11VPK

+ 11LSP

+ 11SP

VSB+ 11

+ 5 VSB

+ 5VSB

QX3 9 0 0

B

KTC 3 2 2 8 - 00 TR3 2 2 8 0 9 AA

RX3 7 0 5

RX3 8 0 210 K

C M3 8 0 2

5 0 V0 .1

RX3 8 7 0

2 .2 K

X3 9 0 0

UF10 JDRGF0 0 10 4 A

RX3 9 0 0

2 .2 K

IC X3 8 0 1

KIA7 8 R0 5 API

0 IMC RKE0 18 A4 0 8 - 0 0 2 E

IN OUT

G

5 V1A

C TL

4 9 2 1V0 0 2 3 1E

C X3 8 0 1

10 V4 7 0 µ F

FRX3 8 0 1

1/ 2 W5 .6

L

+ V2

2

+ VD2

VSB+ 11

VSB+ 11

+ 11VSB

+ 11VSB

B RX3 4 10D2 SB 6 0

~~

0 DRTW0 0 13 1A

QX3 8 7 0E

B

C

KTC 3 2 2 8 - 00 TR3 2 2 8 0 9 AA

E

C

C X3 4 12

2 5 0 V2 2 0 µ F

RX3 6 0 3C X3 6 1010 0 0 µ F

C X3 6 11

3 5 V10 0 0 µ F

DX3 6 10

4 9 2 1V0 0 2 3 7 A0 DD12 0 0 0 0 B B

2

10

8

6

TX3 6 12

1

EE2 5 3 26 17 0 VMC A5 8 2

KX3 9 0 0

12 V

DG12 D1- O( M)14 1- 0 18 E

D

G0

KX3 8 7 0

12 V

DG12 D1- O( M)14 1- 0 18 E

DX3 8 7 00 DRGF0 0 10 4 AGUF10 J

C X3 4 10

10 0 0 V10 0 0 pF

C X3 4 11

10 0 0 V10 0 0 pF

S FLX3 6 10

15 0 - C 0 2 F8 2 µ H

DX3 6 0 1

FB 3 6 10

6 2 0 0 JB 8 0 11T0 .7 9 3 µ H

HO

T SI

DE

CO

LD S

IDE

1

C X3 6 0 5

5 0 V2 2 µ F GUF10 J

0 DRGF0 0 10 4 A

1

1/ 2 W1

3 5 V

RX3 7 0 0

1/ 2 W6 8 0

FML- G12 S4 0 8 - 0 0 2 E4

9

C OLD SIDEHOT SIDE

1

+ V1

1

+ V1

1

B RX3 4 0 0NEW0 DD- NEW

~

~

RX3 4 0 1

7 W1

5678

4321

N.C

.

SOU

RC

E/ STA

RT

UP

OLP

D

FB/

VCC

OC

PD

GN

D

IC X3 6 12

STR- A6 15 10 IPMGSK0 19 A

LX3 4 0 0LFZ2 4 V0 66 14 0 VB 0 0 13 B15 m H

C X3 6 0 1

10 0 0 V4 7 0 pF

C X3 4 0 2

2 7 5 VAC0 .4 7

C X3 4 0 3

2 7 5 VAC0 .4 7

C X3 4 0 4

10 0 0 V10 0 0 pF

C X3 4 0 5

10 0 0 V10 0 0 pF

1

4

ZDX3 6 0 21

RX3 6 0 1

2 W1.2

1

HOT SIDE

1

RX3 4 0 0

1/ 2 W8 .2 M

FX3 4 0 0

Type 2 18 0 0 4

2 5 0 V4 ASLOW B LOW

Mfd by Lit t elf use

0 FS4 0 0 1B 5 1D

C NGND

3 8 7 - 9 0 7 E

THX3 9 0 1

6 3 2 2 V6 2 2 0 6 AZPB 3 1B L5 R0 N

1

2

C N3 T8

1

3 6 6 - 0 4 3 B

1

2

3

C N3 R8

1

3 6 6 - 0 4 3 C

1

2C N3 R8 A

1

PROV

VRX3 4 0 0

5 6 0 V16 4 - 0 0 3 D

FHX3 4 0 0 A4 3 1- 8 13 A

FHX3 4 0 0 B4 3 1- 8 13 A

C X3 4 0 0

4 KV2 2 0 0 pF

THX3 9 0 01

16 3 - 0 5 8 DTO DEGAUSSERC OIL

AC INPUT

HOT SIDE

C OLD SIDE

SHT. 7

SHT. 1

SHT. 1

Deflection

1 2 3 4 5 6 7 8 9 10

G

D

C

B

E

F

A




FLYB AC K

VSYNC

VERT- DRIVE

SHUTDOWN

AB L

HORZ- DRIVE

B +

+ 2 5 V

+ 2 5 V + 2 15 V

+ 2 15 V

+ 2 5 V

+ 3 3 V

+ 3 3 V

+ 2 15 V

B +

RX3 2 0 2

2 W8 .2 K

RX3 2 0 3

2 W8 .2 K

C 2 10 7

10 0 V12 0 0 pF

C X3 2 0 9

3 5 0 V10 µ F

C 3 0 0 2

5 0 V10 µ F

RX3 0 0 5PROV

RX3 2 0 9

1W1

RX3 2 0 7

1/ 2 WPROV

C 3 2 10

5 0 0 V4 7 0 pF

R3 2 0 4

1/ 2 W4 7

C X3 2 0 8

2 0 0 V0 .0 2 2

DX3 2 0 0

RU2 JGF0 DR2 0 0 0 0 9 DA

DX3 2 0 1

RU2 JGF0 DR2 0 0 0 0 9 DA

RX3 2 11

2 W3 3

R3 2 0 0PROV

RX3 2 12

1/ 2 W0 .4 7

C 3 2 11

5 0 0 V4 7 0 pF

C 3 2 0 2

16 0 V2 .2 µ F

R2 10 1

3 K

ZDX3 0 0 0

GDZJ12 B

1/ 2 W12 V0 DZ12 0 0 0 9 B G

C 2 10 8

5 0 V10 µ F

DX3 2 0 2

1N4 14 80 DSGF0 0 0 19 A

R3 2 0 1

1/ 2 W2 K

1

8

6

9

5

2

11

3

7

AB L

F.B LK.GND

G- 2

HV

FOC US

TX3 2 0 16 17 4 V- 6 0 13 C

C X3 2 0 3

16 0 0 V8 2 0 0 pF

C 3 2 0 0

10 0 VPROV

C X3 2 0 6

10 0 V0 .0 1

C 2 116

5 0 0 V10 0 0 pF

C X3 2 0 5

2 KVPROV

C 3 2 0 1

5 0 0 V4 7 0 pF

C X3 2 0 4

2 KVPROV

RX3 2 0 5

2 W1.2

1 4

2 3

TX3 2 0 0

1

15 1- C 0 2 B

DX2 10 0

RGP15 J0 DR15 0 0 0 9 EA

RX3 2 10PROV

C 3 2 12

5 0 0 V4 7 0 pF

DX3 2 0 3

RU2 JGF0 DR2 0 0 0 0 9 DA

C X2 10 0

3 5 V4 7 0 µ F

C 3 0 0 3

5 0 0 V4 7 0 pF

RX3 0 0 4

1%4 .7 K

C X3 2 13

5 0 V10 0 µ F

DX3 0 0 1

RGP15 J0 DR15 0 0 0 9 EA

RX3 0 0 7

PROV

RX3 0 0 6

1%4 .7 K

RM3 0 0 210 0 K

R3 0 0 3

1%2 .2 K

D3 0 0 2

1N4 14 80 DSGF0 0 0 19 A

C 3 0 0 1

5 0 V10 µ F

RM3 0 0 1

10 0

R2 1154 .7 K

C 2 10 9

5 0 0 V10 0 0 pF

C3 9 0

R2 116

2 0 K

R2 10 3

4 7 K

C X2 10

3 5 V10 0 µ F

R2 10 212 K

R2 10 0

6 .8 K

PUMPUP

4321

GN

D

VCC

1

Q3 2 0 1

E

BCKTC 3 2 2 8 - 0

0 TR3 2 2 8 0 9 AA

HEATER4

3

2

1

C N2 C 5 A

1

3 6 6 - 9 2 1C

QX3 2 0 0

2 SD2 6 2 7

0 TRSA0 0 0 0 1A4 9 2 0 V0 0 0 5 6 C

E

B

C

4 9 2 1V0 0 16 1B

RX3 2 0 6

1W1

+ 2 5 V

+ 2 5 V

RX2 10 9

1/ 2 W4 7 0

R2 114

1/ 2 W1K

R3 2 14

1/ 2 W3 3 0

C 2 10 6

10 0 VPROV

C X3 2 15

2 0 0 V0 .3 6

S FLX3 2 0 0

6 0 µ H6 14 0 VE0 0 0 1V

R2 112

1/ 2 W1

R2 10 44 .7 K1%

C 3 2 14

5 0 0 V2 2 0 0 pF

S FLX3 2 0 1

13 0 µ H6 14 0 VB 0 0 0 1F

R2 10 73 .3 K

RX2 10 8

1/ 2 W4 7 0

RX2 111

1/ 2 W5 .6

RX2 110

1/ 2 W2 .2

R2 10 51K1%

C X2 10 4

2 5 V2 2 0 0 µ F

C 2 10 5

10 0 V0 .12 10 3

10 0 V0 pF

R2 10 6

15 0 K

C X2 111

3 5 V10 0 µ F

1

C X2 10 2

5 0 V0 .4 7

OUTPUT

VC C

THERMALPROTEC T

5 76

STAGE

IC X2 10 0

LA7 8 0 4 0

0 IPRPSA0 0 6 A4 9 2 0 V0 0 0 5 8 E

4 9 2 1V0 0 16 1C

4

3

2

1

C N3 Y33 6 6 - 0 4 3 K

1

C X3 2 16

2 0 0 VPROV

RX3 2 13

2 W10 K

DX3 2 0 4

RGP15 J0 DR15 0 0 0 9 EA

C X3 2 17

16 0 V2 .2 µ F

RX3 2 0 8

2 W1

C X3 2 0 7

2 KV2 2 0 pF

SHT. 1

SHT. 2

SHT. 1

SHT. 2

SHT. 1, SHT. 2

SHT. 2

WF

16

WF

71

WF

18

WF

19

WF

20

200V

2uS

WF16

20V

10uS

WF17

5V

2uS

WF18

20V

2mS

WF19

20V

2mS

WF20

Radio

1 2 3 4 5 6 7 8 9 10

G

D

C

B

E

F

A




AUD- AUX- IN

AUD- MONO- IN

VSW+ 4 .1

SW+ 9 V

CH

-1

CH

-2

12

11

10

9

8

7

6

5

4

3

2

1

IC 2 8 0 0

LA7 2 2 21

0 ISA7 2 2 2 0 0 A

C 2 8 0 1

5 0 V4 .7 µ F

R2 8 0 0

1.2 K

C 2 8 0 0

2 5 V4 7 µ F

VR+ 4 .1

+ 5 VSW

+ 5 VSW

+ 4 .1VSW

VSW+ 4 .1

+ 4 .1VR

+ 4 .1VR

+ 5 VSB F

3 3

0 VpF

C 4 2 3 4

2 5 V4 7 µ F

C M4 2 3 1

2 5 V0 .0 1

RM4 2 1010 K R4 2 0 8

2 2 0

R4 2 0 72 2 0

RM4 2 0 910 K

C 4 2 18

5 0 V0 .0 4 7

C RY4 2 0 46 2 0 0 C 0 0 0 0 2 9

SFE10 .7 MS3 - A

10 .7 MHz

C 4 2 5 0

16 V10 0 µ F

L4 2 0 5

10 µ H

RM4 2 0 11K

C RY4 2 0 36 2 12 B A2 5 0 4 AC DA10 .7 MG16 - A

10 .7 MHz

Q4 2 0 0

E

C

0 TR9 4 5 0 0 9 AAKSC 9 4 5 C - Y

Q4 2 0 1

E

BC

0 TR9 4 5 0 0 9 AAKSC 9 4 5 C - Y

FM/ IF- OUT

TUNE- DETEC T- RADIO

RADIO/ TV- SWITC H

FM- STEREO- IND

+ 9 VSIF

L4 2 0 40 .8 2 µ H

RM4 2 2 3

10 0

RM4 2 2 41K

RM4 2 2 5

10 K C M4 2 2 3

5 0 V16 pF

C M4 2 15

5 0 V12 pF

C M4 2 17

5 0 V10 0 0 pF

C M4 2

510 0 0

R4 2 0 0

10 K

L4 2 0 36 14 0 VH0 0 10 ASC 5 4 0 ZNS- 13 0 18

B

Q4 2 0 3

E

BC

0 TR9 4 5 0 0 9 AAKSC 9 4 5 C - Y

VSW+ 4 .1

VSW+ 4 .1

RM4 2 2 24 .7 K

RM4 2 141K

RM4 2 1310 K

RM4 2 2 14 .7 K

C 4 2 19

5 0 V1µ F

RM4 2 112 7 K

RM4 2 124 .7 K

C 4 2 2 0

5 0 V1µ F

C 4 2 2 2

5 0 V1µ F

RM4 2 164 .7 K

RM4 2 152 7 K

RM4 2 1710 K RM4 2 18

1K

C 4 2 2 1

5 0 V1µ F

Q4 2 0 2

E

BC

0 TR9 4 5 0 0 9 AAKSC 9 4 5 C - Y

Q4 2 0 5

E

BC

0 TR9 4 5 0 0 9 AAKSC 9 4 5 C - Y

VR+ 4 .1

L4 2 0 26 14 0 VH0 0 10 ASC 5 4 0 ZNS- 13 0 18

C 4 2 0 7

5 0 V0 .0 4 7

C M4 2 14

5 0 V0 .0 2 2

C 4 2 11

5 0 V0 .0 6 8

C 4 2 12

5 0 V0 .0 8 2

C 4 2 3 2

5 0 V0 .0 8 2

CR

Y420

262

12B

A25

05A

CS

B4

56

F1

645

6KH

z

C M4 2 13

5 0 V0 .0 2 2

RM4 2 0 62 2 K

C 4 2 10

5 0 V2 .2 µ F

C M4 2 0 9

5 0 V3 3 0 pF

C M4 2 0 8

5 0 V16 pF

1 2 3 4 5 6 7 8 9 10 11 12

24 23 22 21 20 19 18 17 16 15 1314

FM R

F-IN

VCO

QU

AD

ST L

ED

TUN

LED

L-O

UT

FM R

F-O

UT

LPF2

AM

OSC

GN

D2

FM I

F-IN

AM

IF-

IN

R-

OU

T

FM O

SC

VCC

2D

ET O

UT

LPF1

AG

C

DET

IN

AM

-M

IX

FM S

T

FM M

IXVC

C1

GN

D1

AM

RF-

IN

1

VR+ 4 .1

RM4 2 3 3

3 .3 K

C M4 2 16

5 0 V3 3 pF

RM4 2 3 2

2 2

RM4 2 3 1

2 2

RM4 2 3 010 0

RM4 2 5 04 .7 K

C M4 2 0 2

5 0 V2 7 pF

C M4 2 0 3

5 0 V2 7 pF

C M4 2 0 5

5 0 V2 7 pF

C M4 2 3 0

5 0 V10 0 0 pF

C M4 2 5 0

5 0 V15 0 pFC M4 2 5 2

5 0 V10 0 0 pF

C RY4 2 0 06 2 12 AA2 9 8 6 A

5 4 MHz

L4 2 0 10 .2 2 µ H

Q4 2 0 4

E

BC

0 TR9 5 9 0 0 9 AAB F9 5 9

IC 4 2 0 10 IC TMTO0 0 6 A

TA8 12 2 AN

SHT. 1

SHT. 2

SHT. 1

SHT. 1

SHT. 3

SHT. 2

WF

21

WF

22

1.17V

10nS

WF21

1.56V

2uS

WF22

1

11

1

1

1

1

+ 14 SPK

+ 14SPK

RX4 0 0 62 2 K

RX4 0 0 5

2 W2 2

C X4 0 0 2

5 0 V4 7 µ F

ZDX4 0 0 2

1/ 2 W0 DZ5 10 0 0 9 B F

GDZ5 .1B5 .1V

ZDX4 0 0 3

1/ 2 W

0 DZ5 10 0 0 9 B F

GDZ5 .1B5 .1V

ZDX4 0 0 4

1/ 2 W

0 DZ5 10 0 0 9 B F

GDZ5 .1B5 .1V

DX4 0 0 1

GUF10 J0 DRGF0 0 10 4 A

5

104

1

TX4 0 0 1

1

6 17 0 VMC A0 4 4EE16 2 5 S

C X4 0 0 4

5 0 V4 7 µ F

RX4 0 0 1

1/ 2 W8 .2 M

R4 0 0 3PROV

C X4 0 0 0

4 KV2 2 0 0 pF

R9 0 15 6 0

R4 0 0 4PROV

C X4 0 0 1

5 0 0 VPROV

C 9 0 1

5 0 V0 .1

C X4 0 0 3

16 V2 2 0 0 µ F

TX9 0 0

1

6 17 0 VA0 0 0 1A

+ 11VPK

PILLOW- SPEAKER

DX4 0 0 0

GUF10 J0 DRGF0 0 10 4 A

R9 0 0

1/ 2 W1

FX4 0 0 0

Type 0 4 7 1.5 0 0

12 5 V0 .5 ATIME LAGMFD B Y LITTELFUSE

0 FF5 0 0 0 ATL2

FX4 0 0 0 A

Type SS- 5 - 0 5 0 0 - H

2 5 0 V0 .5 ASLOW B LOWMfd by Save Fuset ech

0 FS2 5 0 1B 8 4 B

+ 14SPK

+ 14SPK

+ 14SPK

R9 0 6

4 7 0

3

41

2

IC 9 0 20 ILI8 17 0 0 0 GLTV8 17 M

1

R9 0 7

3 3 0

R9 11

4 7 0

3

41

2

IC 9 0 30 ILI8 17 0 0 0 GLTV8 17 M

1

3

41

2

IC 9 0 40 ILI8 17 0 0 0 GLTV8 17 M

1

R9 144 7 0

R9 124 7 0

R9 13

4 7 0

ON/ OFF

DATA/ C H- UP

C OMMON

AUDIO

C H- DOWN

5

4

1

3

62

JP16 6 13 V0 0 0 17 A

PATIENT SIDE C HASSIS S

KEY1- IN

IR- DATA

KEY2 - IN

+ 5 VSB

+ 5 VSB

+ 5 VSB

Q9 0 2

E

BC

KSC 9 4 5 C - Y0 TR9 4 5 0 0 9 AA

Q9 0 3E

B

C

KSC 9 4 5 C - Y0 TR9 4 5 0 0 9 AA

Q9 0 4

E

B

C

KSC 9 4 5 C - Y0 TR9 4 5 0 0 9 AA

RM9 2 62 7 0

C 9 0 6

5 0 V0 .0 4 7

RM9 2 34 7 K

R9 18

3 9 0

R9 2 1

3 3 K

R9 19

2 7 0

R9 151.5 K

R9 16

1K RM9 2 210 K

R9 171.5 K

R9 0 810 K

R9 0 9

1K

R9 10

4 7 0

R9 2 010 K

RM9 2 41.5 K

RM9 2 5

1K

IDE

SHT. 1

SHT. 1

SHT. 1

SHT. 3

SHT. 4

WF

24

WF

23

5.08V

2uS

WF23

4.80V

5uS

WF24

Pillow Speaker

1 2 3 4 5 6 7 8 9 10

G

D

C

B

E

F

A




6 6 3 0V L 02 7 11

3 6 6 - 9 2 2 J

CON16 6 3 0V L 02 7 11

1E11

6 6 3 0V L 02 7 11

2 E6

6 6 3 0V L 02 7 11

CON2

1V GA10

4

3

2

1

6

5

7

8

9

10

11

4

3

2

1

6

5

7

8

9

10

11

4

3

2

1

6

5

7

8

9

10

11

4

3

2

1

6

5

7

8

9

10

11

4

3

2

1

5

7

6

10

9

8

H- SYNC

BL UE- V I DEO- I N

GREEN- V I DEO- I N

AUDI O- GND

+11V

+11V

_CL ONESENSE/ PTY SEL ECT

SPARE

MPI _ DATA_ I N

MPI _ DATA_ I N

SPI _ CL OCKSPI _ CL OCK

SPI _ DATA_ I N

SPI _ DATA_ I N

SPI _ DATA_ OUT

SPI _ DATA_ OUT

L EFT- AUDI O- I N

DATA_ GND DATA_ GND

I R_ DATA_ OUTI R_ DATA_ OUT

GND

GND

MPI _ DATA_ OUT

MPI _ DATA_ OUT

PS_ GND

PS_ GND

+5 V BA +5 V BA

RI GHT- AUDI O- I N

RED- V I DEO- I N

Edge Card

1 2 3 4 5 6 7 8 9 10

G

D

C

B

E

F

A




6 6 3 0V L 02 8 11

6 6 3 0V L 02 8 11

2 2 K

2 2 0p F5 0V

10K

4 .7 K

4 .7 K+5 VSBF

1M

+5 VSBF

+5 VSBF

6 6 12 V EH001A

+11V

4 7 0

4 7 0

2 2 K

3 .3 K

1K

2 2 0

4 7 0K

0TR9 4 5 009 AAKSC9 4 5 C- Y

Q4 9 06

10KR4 9 9 7

11E1

RM4 9 8 6

C4 9 6 5

2 2 0p F5 0V

C4 9 6 6

2 2 0p F5 0V

C4 9 6 7

R4 9 9 3

10KRM4 9 9 5

R4 9 9 2

6 E20TR9 4 5 009 AAKSC9 4 5 C- Y

Q4 9 04

R4 9 9 0

R4 9 9 1

0TR9 4 5 009 AA2 2 0KSC9 4 5 C- Y

Q4 9 05

R4 9 8 3

100u F16 V

C4 9 4 6

MPI

R4 9 9 6

RM4 9 8 5

RM4 9 9 4

R4 9 8 4

R4 9 8 2

C

B

E

4

3

2

1

7

6

5

8

9

10

11

CB

E

4

3

2

1

7

6

5

8

9

10

11

C

B

E

C

B

E 4

3

2

1

6

5

+11V

GND

GND

MPI _ DATA_ OUT

I R_ DATA

MPI _ DATA_ I N

+5 VSBF

RM4 9 8 90TR7 3 3 009 AAKSA7 3 3 C- Y

Q4 9 03

MPI Card

1 2 3 4 5 6 7 8 9 10

G

D

C

B

E

F

A




Video Output

1 2 3 4 5 6 7 8 9 10

G

D

C

B

E

F

A




WIRE TO SWEEP

BL UE

AMP

GREEN

AMP

REDAMP

3 .6

4 .0

12 8 .2

12 8 .5

4 .0

3 .6 5

12 6 .7

4 .0

3 .6 9

6 6 2 0V BA003 A

6 6 2 0V BC003 A

2 0- 03 9 07 - 2 5A

12 5 - 02 2 K

BL UE

GREEN

RED

P/ L

1

1K 1/2

W

P/ L

1

2

22

0u

F16

V

12 0u H

5 0V2 2 0PF

1K

P/ L

4 7

1

1

2

2

2

1K

1K

2

3.6

V

P/ L

1/2 W15 0K

+9 VSW

2

1/2 W1K

1/2 W1K

1/ 2 W15 0K

1/ 2 W15 0K

1

P/ L4

70

2 15V DC

2 15V DC

2

2

1u H

CV D2 15

5 0V2 2 0PF

5 0V2 2 0PF

2

2 KV0.01

2

W5 103

CRT2

R5

107

W5 104

CRT1

3 5 0V1u FC5 101

1/2 W1K

R5 12 7

1/2 W

15 0R5105

4 .7 u F2 5 0V

C5 108

C5

107

L 5 100

CM5 102

RM5 101

W5 100

RM5 102

1/2 W15 0

R5 12 0

0TR3 2 2 9 00AAQ5 103

RM5 117

RM5 108

PROVRM5 12 0

PROVRM5 112

PROVRM5 105

4 7 0RM5 12 1

4 7 0RM5 113

4 7 0RM5 106

4 7RM5 109

1/2 W2 2 0K

R5 12 6

5 C2

R5 119

5 0V4 7 0p F

CM5 109

12 K2 W

RX5 12 2

12 K2 W

RX5 111

12 K2 W

RX5 104

R5 12 3

R5 115

DAG1

R5 103

4 7 0p F5 0V

CM5 106

R5 110

47RM5 118

0TR3 2 2 9 00AAQ5 101

W5 102

R5

114

DAG

4 7 0p F5 00V

C5 111

L 5 102

5 0V4 7 0p F

CM5 103

CM5 118

0DR14 004 9 AD5 100

0TR3 2 2 9 00AAQ5 102

CM5 105

2

C5 104

1/2 W15 0

R5 112

CB

E

4

3

2

1

7

6

5

8

9

CB

E

CB

E

G2

1

4

5

6

78

9

3

G2

1

4

5

6

7

8

9 1011

12

GREEN

GREEN

G2

G2

G1

G1

BL UE

BL UE

FI L AMENTOS

FIL

AM

EN

TO

S

RED

RED

D5

105

WF

25

WF

26

WF

27

4.60V

20uS

WF26

4.60V

20uS

WF27

1.73V

20uS

WF25

RX3213

QX3 9 0 0

EBC

CX3

209

W82

G9

2 17

CX3

207

R3 2 14

QX3 2 0 0

E

B

C

DX3 2 0 4

TX32

01

RX3 2 0 8

C32

00

CX3

204

C N3 Y3

R32

00

2 0 6

RX3 2 0 9

3205

DX3 2 0 0

Q32

01

E

B

C

RX3

40

C N2 C 5 A1

CX3

205

C X3 2 0 6

C X3 4 12

TX3 2 0 0

CX3

203

R22

27

RX3 2 0 7

C X3 2 0 8

RX3

203

RX3

202

W7 2

C 3 2 0 2

R32

04

DX3 2 0 1

CX3

216

DX3

202

RX3 2 12C 3 2 10

IC X3 6 7 0DX3 9 0 0

G8

E11E12

E13

E14

E15

E16

E17E18 E19 E2 0

C32

14

C32

01

R32

01

E2 1

G10LX3 2 0 0

LX3 2 0 1

G11

G12

G13

L120

5

W9

C RY4 2 0 2

Q9 0 2

E BC

W16

C42

32

C42

11

R9 10

W4

L120

7

W13

Q42

04

E

B

C

R9 19

C30

01

R9 16

W3

W14

R22

49

Q42

03 E

B

C

IC 9 0 4

1

C90

1

R9 15

L420

5

C42

18

IC90

2

1

C 4 2 2 2

L120

3U12 0 1

C 4 2 2 0

C RY4 2 0 3

CN

4G9

TX90

0

JP1

W28

Q42

02

E

B

C

C12

16

CR

Y420

4

W1

Q22

06 EB

C

Q9 0 4E

BC

C 4 2 19

W10

D2 2 0 1

W8

Q4 2 0 5E

B

C

L4 2 0 2

R22

55

D2 2 0 2

R9 2 1

R9 2 0R9 0 8

R9 0 9

U12 0 2

IC 9 0 3

1

C22

21

C 2 2 2 0

R4 2 0 8

CR

2201

C 4 2 10

L220

1

C42

07

CR

Y420

0L4

201

L1204

C 2 2 18

C 4 2 2 1

C 4 2 12

C 2 2 2 5

L420

4

C 2 2 19

R4 2 0 7

C 12 2 2

L4 2 0 3

IC 4 2 0 1

C 2 2 16

Q2 2 0 5EB

C

ICX2

20

Q12

01

E

B

C

W2

D2 2 0 0

R9 17

L2 2 0 0C 2 2 2 7

Q12 0 2

E

B

C

C 12 14

L120

6

W7

C 4 2 3 4

W11

W15

C 2 2 2 6

R9 18

Q42

01

R2 2 2 4

W7 0

Q9 0 3

E BC

C 9 0 6

R9 11

R9 13

R9 14

R9 12

R9 0 7

R9 0 6

CX4

004

W12

IC 8 0 1

R4 2 0 0

W2 4Q

800

E

B

C

C81

6

R80

0

1

W2 5

R28

00

W8 7

W8 8

W8 9

W9 0

W9 1

W2 7

W2 3

W9 2

W10

9 W2 1

W9 3

TU12

40

C 4 2 5 0

W8 4

W7 9

W34 ZD12 4 0

R29

01

L12 4 0

W33

C 12 4 0

C X3 8 5 6

W2 9

W85

W3 6R

2902

E

B

C

W3 5

C 2 8 0 0

W20

R9 0 1

C 12 4 1

W10 5

C 8 0 0

R9 0 0

R14 0 4

C 8 2 5

C80

1 C 8 0 2

C82

4

C2

80

1

ZD2 9 0 1

C 12 4 7

W12 5 0

IC 2 8 0 0

C 14 0 2

D2 2 0 5

W3 7

C NGND1

C 12 4 9

W10 8

IC X3 8 5 5

GN

DO

UT

IN

C TL

Q42

00

E

BC

RX3

856

HOSPGNDRX3 2 11

DX

W3 1

W3 0 W3 8

C12

46

LX38

52G18

G19

R2 2 2 1

W43

C1

C60

98

W7 6

IC60

02G

ND

OU

TVC

C

C60

06

W6 0 0 2

R22

17

W17

0

C 2 2 0 9

C22

06

W5 1

C21

10

W5

C 12 0 6

W18

C 2 2 0 1C

2202

C22

03

C 12 0 7

R2 2 2 2 C22

08

L120

1W19

C R2 2 0 0

Q2 2 0 2

E

BC

R2 2 2 0

U12 0 0C

1212

C 12 10

R12

09

R6 0 3 0

L6 0 0 7

R12

04

R60

27

R60

26

W4 2

R60

41

W55

C N2 C 5 B

1

W10 0

C RY6 0 0 2

W54

R60

13

R60

43

W4 8

L6 0 0 2

W56

W4 1

W49

W57

W4 0

W4 5

W2 2

W3 9

Q22

01

E

B

C

W6

C 6 0 13

W50

R6 0 9 9

W4 6

W10 1

R60

11

L6 0 0 3

R6 0 7 2

W4 7

C 6 0 16

D60

01

C 6 0 2 0IC 6 0 0 1

W86

Q22

00

E

B

C

C N10 VGA1

C RY6 0 0 1

N2 K6

CX4

001

W10 4

RX3

900

R6 0 0 4

D60

02

L12 0 0

C 2 2 3 9

L120

2

SHIELD

L600

1

RX3 8 7 0

W5 2

W58

W44

R60

16

R60

15

L6 0 0 4

W53

Q12

00

E

B

C

L600

5

C 6 0 3 5

Q6 0 0 1

EBC

ZD60

02

W61

ZDX4

004

DX4

001

W6 7

W6 8

W62

W6 9

R40

04

W65

RX3

852

R6 0 0 8

Q6 0 0 2

EB

C

RX3 8 0 2

RX3

861

IC X3 8

GN

DO

UT

INC

TL

RX4 0 0 5

RX3

851

W63

R40

03

W64

W6 6

C X4 0 0 2

CX3

611

C X3 8 5 1

C X3 8 5 3

IC 6 0 0 0

CX3

671

DX3

662

TX40

01

W5 9

W6 0

CX3

801

FRX3

801

ICX3

801

INOUT G

C TL

DX3

855

3856

R12

25

W3 2

LX3 8 5 1

G16

G1

_ A_ V

_ A_ V

W26

FX4 0 0 00 .5 A

12 5 VDX4 0 0 0

DX3

870

C X3 7 5 1

FB36

61

FX3 6 6 1

3 A12 5 V

ZD

X4

00

3

E8

W10

2

RX4

001

5 1

QX3

870

EB

C

DX3 6 10

AK

KX3 8

TX3 6 121

IC X31

C X3 7 0 2

RX3 7 5 0

RX3 7 0 5

RX3 7 0 4

CX3

662

RX3 7 0 2

RX3 7 5 1

W99

RX3

756

ZD

X4

00

2

RX3

703

3660

CX4

000

RX3 7 0 0

IC X3 7 0 1A

R K

FB36

51

C X3 7 5 0

ICX3

751A

R K

RX3 7 0 1

FB 3

RX3

752

F

FB 3 6 10

RX3

754

IC X3 7 5 01

RX3

755

RX4

006

C X4 0 0 3

RX3

753 RX3

652W

103

E1

RX3

653

DX3

653

E2

E3

1

E4

E5

E6

2 .5 A2 5 0 V

0 .5 A

2 5 0 V

C X3 6 10

CX3

650

LX3 6 10

C

G30

7

G2 0

G2 1

G2 4

_ A_ V

CN

3R8A

KX3

900

RX3 4 0 1

C N3 R8

G6

~~- +

BR

X340

0

~~- +

W95

C NGND

G2

G3

W96W

97

CX3

600

CX3

404

CX3

605

RX3

600

RX36

01

CX3

406

G4

CN

3T8

7 0

CX3

654

RX3 6 0 3

7 0 0

0

CX3

407

FX3 4 0 0

4 A 2 5 0 V

FHX3 4 0 0 AFHX3 4 0 0 B

BR

X341

0

+

~~

-

VRX3 4 0 0

LX3 4 0 0

G5

ICX3

612

CX3

655

W9 4

RX3 6 0 2

C X3 6 0 3

C X3 6 0 4

DX3

601

C X3 6 0 2

6 5 2 A

ZDX3 6 0 2

B 3 6 5 2

CX3

652

RX3 6 5 5DX3

655

CX3

653

RX3

654

CX3

405

OC P/ FB

GN

D

VIN

D

S

FB36

50

CX3

411

DX3

651

DX3

652

CX3

410

RX3

656

G7

E10

E9

G2 7

E3 8 E3 9

G1

E3 2 E3 7

DX3

600

CX3

601

THX3 9 0 0

1

RX3

651

THX3901

X3400

G2 8 G2 9

G2 2

G2 3

G2 5 C X3 4 0 2

C X3 4 0 3

G2 6

R82

4

RX3

210

R2 2 9 1

RX2

110

R21

04

C N9 M4

1

R21

06

C 2 116

ZDX3 0 0 0

Q2 2 0 7E

BC

R21

07

C X3

W10

6

E7

W74

DX3 2 0 3

R2 112

Q2 2 0 3E B

C

W7 8

C21

09

C X3 2 13

R22

40

R2 115

C22

24

RX3

DX3

660

RX

RX3

850

FB36

60A

CX2

104

CX3

670

W10

7

W7 1

C 3 2 12

D2 2 0 3

RX2

108

CX

W8 0

W8 3

R22

39

D22

04

C 2 10 5Q22

04

E

B

C

C 3 2 11

C 3 0 0 2

R2 2 3 2 C22

22

R2 2 9 2

C22

90

R2 2 9 0

W9 8

D3 0 0 2

RX2

109

CX3850

CX3

215

W8 1

C22

23

R3 0 0 3

R2 10 1

DX3 0 0 1

W7 7C 3 0 0 3

RX3 0 0 4

RX3 0 0 5

RX3 0 0 6

FB36

60

RX3 0 0 7

RX2

111

R21

14

R21

05

C X2 111

CX3

651

C 2 10 8

R21

16

CX2

102

W75

R21

03

IC X2 10 0

1R2 10 2

C X2 10 0C21

03

W7 3

DX2 10 0

C 2 10 7

R2 10 0

C 2 10 6

C X2 10 1

TX3 6 7 0

LX3 8 5 0

G14

G15

G3 1

17 / SEP/ 2 0 0 46 8 7 0 VM0 5 3 9 D

PCB Layout Top

1 2 3 4 5 6 7 8 9 10

G

D

C

B

E

F

A




604M60

M60

603604

M60

460004

221220

221

R

RM12 15

RM3 0 0 2 C M12 18

4

CM

RM3 0 0 1C M12 0 1

51

RM2213

40

C M12 0 4

RM2252

RM2229

CM2225

RM2241

CM1242R

M2243 R

M

RM2228

CM2215

RM2225

C M2 2 3 6 RM1223C

RM12 0 6

R

CM1202

RM2245

RM2210

RM1207

RM1201

RM1208

9

CM1205

RM2208

RM1213

2

RM1212

RM1200

RM2214

RM12 10

RM2211

RM12 11

C M2 2 0 0

36

CM1200

RM1231

CM1209

CM1211

RM2 2 16

CM1208

C M2 2 0 5C M2 2 10RM2 113

RM6052

RM6038

RM1205

RM6047

RM6045

C M2 112

RM12 0 2

CM1213

RM1203

RM1214

CM1219

RM1216

CM1221

RM2257

CM1223

RM2242

CM2217

RM2226

RM2223

CM2214

7

CM2213

CM3855

5 9 2

CM1203

CM3852

RM1226

RM12 2 4C M12 2 4

C M2 2 3 4 C M12 17

CM6099

RM RR

RM6069

RM6035

RM6059

CM6080

RM6060

RM6070

RM6061

RM6009

RM

RM R

RM6058

RM4209

RM6 0 3 3RM6080

C M6 0 0 9

CM6037

RM6014

RM6090

RM2206

JM1

RM6001

RM220

CM6003

RM6003

CM6001

RM6005

RM2200

RM6002

RM6006

RM2203

RM2205

RM2201

CM6036

RM4 2 10

RM

RM6049

RM6050

RM6046

CM6021

CM6022

RM6048

CM6002

C M6 0 17

RM6037

RM6010

RM2207

CM3802

CM22

RM

RM

CM6053

CM6043

CM6052

RM

CM6055

CM6095

CM6040

CM6049

CM6097

CM6008

CM6010

CM6042

CM6079

CM6038

CM6090

CM6093

CM6023

CM6094

CM6051

CM6041

CM6091

CM6050

CM6092

CM6011

CM6012

RM6032

CM6005

CM6048

CM6047

CM6019

CM6007

CM6015

CM6056

CM6014

CM6033

CM6025

CM6024

CM6054

CM6058

CM6059

CM6060

CM6018

CM6046

CM6045

RM6 0 3 4

RM2202

RM6031

C M4 2 5 0

M1222

C M4 2 3 1

RM4 2 18

2228

RM1218

CM1220

CM4230

RM4201

RM4250

RM4 2 17

RM4 2 15

CM4214

CM1243

RM4231

CM4203

RM2246

RM4230

RM832

CM4205

RM2247

RM4212

RM2230

RM2231

CM4209

C M4 2 17

RM4 2 2 2

CM4213

RM4 2 2 5

CM2292

C M4 2 2 3

1221

RM4 2 11

C M4 2 0 8

RM821

CM4215

RM4224

RM2248

M2235

M2256

C M4 2 3 3

CM4202

CM2231

CM2291

CM1215

RM4 2 13

RM4214

RM4 2 2 1

RM4233

RM926

RM822

C M8 2 2

RM9 2 2

RM2 2 4 4

RM1219 RM4 2 2 3

RM9 2 5

RM924

RM2253

RM2 2 3 8

CM1245

RM4232

RM9 2 3

RM2 2 3 6

RM2 2 3 5

RM2 2 3 7

RM4216

RM2 2 3 3

RM4206

RM2 2 3 4

RM1217

CM4252

C M4 2 16

CM2237

RM1220

CM1244

6870VM0539D

PCB Layout Bottom

1 2 3 4 5 6 7 8 9 10

G

D

C

B

E

F

A




D5100C

510

8

CR

T1

CR

T2

W016 0

C49 6 5

C4

96

6

C4 9 6 7

6E

211E

1

MP

I

R4

99

7

R4

99

2

R4990

R4

99

1

R4

99

6

C5

107

R4

98

7

C5

104

R4

98

3

W3

L5

100

R5

114

Q5

102

Q5

103

C5

101

L5102

D5

105

DA

G

RX5104

RX5111RX512

2

W2

Q4

90

5

Q5 101

W5102

R5

103

R5

115

W2

01

R5

123

R5

119

R5

110

R5127

Q4

90

4

C5 111

W5103

DA

G2

R5

112

R5

126

W2

00

R5105

R5

120

R4

98

4

1VG

A10

CO

N2

2E

6

CO

N1

1E11

W4

R5

107

W5100

W5104

Q4 9 06

5C

2W

1

68

70

VS

22

27

A

68

70

VS

22

27

A

68

70

VS

22

27

A

AU

G/

24

/2

00

4

11

1

EB

C

EB

C

EC

B

E

B

C

EC

B

1

1

EB

C

1

1

1

EC

B

1

ED

GE

T

AR

GE

T

DA

G1

Q4

90

3

R4

99

3

C4

94

6R

49

82

2nd. PCB Layout Top

1 2 3 4 5 6 7 8 9 10

G

D

C

B

E

F

A




RM4989

RM

49

86

RM

49

95

RM

49

85

RM4994

CM5 105

CM5 118

CM5 103

CM5 106

CM

510

9

CM

510

2

RM5 118

RM5 109

RM5 106

RM5 113

RM5 12 1

RM5 105

RM5 112

RM5 108

RM

511

7

RM

510

2R

M5

101

RM5 12 0

2nd. PCB Layout Bottom

1 2 3 4 5 6 7 8 9 10

G

D

C

B

E

F

A




SERVICE MANUAL - Diagramas dediagramas.diagramasde.com/televisores/Zenith H20H52DT_Service... ·...

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Transcript of SERVICE MANUAL - Diagramas dediagramas.diagramasde.com/televisores/Zenith H20H52DT_Service... ·...