Dp 85 Train Pack

8/14/2019 Dp 85 Train Pack

1/112

NOVEMBER, 1999 Prepared by: ALVIE RODGERS C.E.T.

This training package is geared specifically to the 61HDX98B HDTV. However, most of

the material will cross over to the 60SDX88B progressive scan HDTV capable set. The

necessary understanding that the 60SDX88B requires a Set-Top-Box to receive SDTV and

HDTV signals is important. The 60SDX88B does NOT have a DM-1 module. This moduleis built into the 61HDX98B which allows this set to receive all ATSC formats as well as

Direct TV, NTSC, SDTV or HDTV. It does not have Component Inputs.

The 60SDX88B has a built in FLEX converter that translates any input into either 480P for

NTSC or SDTV and/or 1080I for HDTV. It does have Component Inputs.


2/112

CONTENTSSECTION PAGE

DP-85 CHASSIS TRAINING and INFORMATION HDTV

1): GENERAL BLOCK DIAGRAMS, SECTION:

Power SupplyBlock Explanation --------------------------------------------------------- 01-01 Power SupplyBlock Diagram ------------------------------------------------------------- 01-02 DM-1 Module Front EndBlock Explanation -------------------------------------------- 01-03

DM-1 Module Front EndBlock Diagram ------------------------------------------------ 01-05

AV SelectorBlock Explanation ------------------------------------------------------------ 01-06

AV SelectorBlock Diagram ---------------------------------------------------------------- 01-07 System ControlBlock Explanation ------------------------------------------------------- 01-08 System ControlBlock Diagram ----------------------------------------------------------- 01-10 2H VideoBlock Explanation --------------------------------------------------------------- 01-11 2H VideoBlock Diagram ------------------------------------------------------------------- 01-12

Deflection Circuit Block Explanation ---------------------------------------------------- 01-13

Deflection Circuit Block Diagram -------------------------------------------------------- 01-16

CRT Block Diagram ------------------------------------------------------------------------- 01-17

Audio Output Block Diagram ------------------------------------------------------------- 01-18 Rear Panel Diagram ------------------------------------------------------------------------- 01-19 4X3 Displayed on 16X9 Four Possible Modes ------------------------------------------- 01-20

2): POWER SUPPLY INFORMATION, SECTION: Digital Circuit Power Supply SHUT DOWNBlock Diagram -------------------------- 02-01 Digital Circuit Power Supply SHUT DOWNCircuit Diagram ------------------------- 02-02 Digital Circuit Power Supply Visual Trouble Shooting LED'sDiagram ------------- 02-03 Digital Circuit Power Supply DistributionDiagram -------------------------------------- 02-04

Deflection and High Voltage Power Supply SHUT DOWN Block Diagram --------- 02-05 Deflection and High Voltage Power Supply SHUT DOWN Circuit Diagram -------- 02-06 Deflection Power Supply Visual Trouble Shooting LED'sDiagram ------------------ 02-07 Deflection Power Supply DistributionDiagram ------------------------------------------ 02-08


3/112

CONTENTSSECTION PAGE


Digital Convergence OVERLAY Information -------------------------------------------- 06-02 Digital Convergence OVERLAY DIMENSIONS --------------------------------------- 06-03 Digital Convergence REMOTE CONTROLButton Identification ------------------- 06-04

7): MICROPROCESSOR Microprocessor PortDefinitions ...................................................................................... 07-01 Microprocessor Data Port Block Diagram ....................................................................... 07-03 Microprocessor Data Communications Block Diagram ................................................... 07-04

8): ADJUSTMENTS Adjustment Order ............................................................................................................... 08-01 I

2C BusAlignments in the Field........................................................................................... 08-02 Centering MagnetsLocation ...............................................................................................08-06 Pre HeatRun Condition .......................................................................................................08-07

Cut Offand Focus Adjustment ............................................................................................08-08 Digital Convergence Unit Crosshatch Phase ......................................................................08-09 Horizontal PositionCoarse Adjustment ..........................................................................08-10 Raster Tilt(Deflection Yoke) Adjustment ..........................................................................08-11 Beam AlignmentAdjustment ..............................................................................................08-12 Centering Magnet and Beam Shape Magnet Identifications............................................08-13 Static Centering and Center Adjustment ........................................................................ 08-14 Horizontal BlankingPhase Adjustment ..............................................................................08-15 Horizontal & Vertical SizeAdjustment ................................................................................08-16

TrapezoidDistortion Adjustment ....................................................................................... 08-17 Side PincushionDistortion Adjustment ..............................................................................08-18 Beam FormAdjustment ...................................................................................................... 08-19 OpticalSystem Alignment (Lens) ........................................................................................08-20


4/112

CONTENTS

SECTION PAGE


Red and Blue 7X5Adjustment ..........................................................................................................08-34

Green 13X9Adjustment ....................................................................................................................08-35

Red and Blue 13X9Adjustment ........................................................................................................08-36

StoringNew Dig. Conv. Data ...........................................................................................................08-37

Magic FocusInitialization ................................................................................................................08-38

SMOOTH MODE

Change Screen F ormat to SMOOTH Mode and repeat steps below.

Green 7X5Adjustment (If necessary) ...............................................................................................08-33 Red and Blue 7X5Adjustment (If necessary) ...................................................................................08-34

Green 13X9Adjustment ....................................................................................................................08-35

Red and Blue 13X9Adjustment ........................................................................................................08-36

StoringNew Dig. Conv. Data ...........................................................................................................08-37

Magic FocusInitialization ................................................................................................................08-38

Static Centering Adjustment ..........................................................................................................08-39

Minor Digital Convergence Adjustment

Minor Adjustments Needed ............................................................................................................08-40

Accessing Digital ConvergenceError Codes ..................................................................................08-41Adjustments Continued

Memory Initialization Procedure .......................................................................................................08-42

9): TROUBLE SHOOTING

No Raster No Power ..........................................................................................................................09-01

A and B: No Relay Click, Def. Red LED Blinking ...................................................................09-02

C and R: No Red LED B+ ......................................................................................................... 09-03

D, E and F: All LEDs going off at the same time Def. and Power PWB .............. .......... ........ 09-04

G One LED going off a little before the others Dig. and Sig. Power PWB .............................. 09-05

DM-1Trouble Shooting Figure .......................................................................................................09-06 DM-1 Troubleshooting Checks ........................................................................................................09-07

DM-1 Waveforms used for Troubleshooting ..................................................................................09-08

DM-1 Video Waveforms Troubleshooting Checks ........................................................................09-08

Deflection Waveforms Troubleshooting Checks 09-10

ADJUSTMENTS CONTI NUED


5/112

The 61HDX98B utilizes two switching power sup-

plies.

DP-85's stand by switching mode operation is different

from AP-7X and 8X chassis's. Switching frequency of

AP-7X and 8X chassis is dropped to 20kHz during

stand by mode. But the DP-85's power supply is not

dropped during stand by mode. DP-85's is operated

about 100kHz.

Normally Power Supply switching is operated as fol-

lowing.

T901: 25- 56 kHz (Normal)

100-200 kHz (Stand by)

TP91 30- 53 kHz (normal)

POWER SUPPLY UTILIZED FOR THE DIGI-

TAL AND SIGNAL CIRCUITS:

(Sub Power Supply PWB)This supplies power primarily to the Digital circuits, i.

e. DM-1 module. This supply runs anytime the set is

plugged into an AC outlet.

The voltages produced are;

+33V,

Power for the Satellite dish which is switched be-

tween 13V and 19V dependant upon the channel

being received.

Stand By 12V also called A12V TV9V

TV5V

3.3V

circuits.

6.3V to drive the CRT Heaters.

+28V for the Convergence, Velocity modulation

and Audio Out circuit.

+13V for Vertical.

-13V for Vertical and also converted down to

the 5V for the Digital Convergence Unit.

The TV9V supply generated from the Power Supply

for Digital listed above, is regulated down to +5V forthe Digital Convergence Unit and the A12V for the

Power Supply for Digital is used as a switched On/Off

for the Deflection Vcc by the Rainforest IC.

BLOCK DIAGRAM EXPLANATION POWER SUPPLY BLOCK


6/112

IP01Main

SwitchingRegulator

EE49

Relay

Line

Filter

R

I901Sub

SwitchingRegulator

EE42

Line

Filter

STAND BY

C21V

R/F 28V

-7V

24.5V

SWITCHED

Def. +B V1&V235V

CRT &Vm Out

ConvergenceVelocity Mod.Audio Out

Convergence

Vertical

Vertical (M13)

DCU

Heater

ToSignalBlock

POWER SUB P.W.B.

DP85 POWER SUPPLY BLOCKDIAGRAM

Fuse

(130V) Reg

220V

+28V

-28V

+13V Reg.

-13V Sw. Reg.

-5V Reg.

6.3V

AC108-132V/60Hz.

AC Inlet Type

ToDe

flectionBlock

Page01-02

POWER DEFLECTION P.W.B.

+33VS Reg

-5V Sw. Reg.

28V

21V

Power Fail

L. NB Sw. Reg.

A12V Sw. Reg.

9V Sw. Reg. TV9V

5V Sw. Reg. TV5V

3.3V Sw. Reg.

3.3V Sw. Reg.

HVcc12VA12V

+5V Reg.TV9V DCU


7/112

The 61HDX98B utilizes a non-repairable Front End

Assembly called the DM-1 Module. This module con-

tains the main System control center, NTSC Front

End, Direct TV Receiver and ATSC Tuner. The block

diagram indicates the internal blocks contained within

the Front End Assembly, hear after called the DM-1.

Starting counterclockwise from the upper left.

SATELLITE:This represents the Direct TV satellite dish connection

to the back of the set.

SATELLITE TUNER/IF:

This is the internal IRD, (Integrated Receiver and De-

coder). This receives the satellite signal from the LNB

(Low Noise Block) located on the Dish. This block

converts the signal to a usable signal for decoding.

SATELLITE CARD and SATELLITE LINK

BLOCK:To receive Direct TV signals, the customer is required

to insert an active Security Card into the back of the

set. This care contains a programmable chip that con-

tains the consumers information and the channels that

the consumer is allowed to receive. Also, this card is

used when billing information is retrieved by Direct

TV.

LINK/MIX:This block passes the particular signal that the cus-

tomer has decided to view on screen. Either the Direct

TV signal or the ATSC tuner.

line labeled Composite Video to the Signal Selec-

tor IC which selects the appropriate signal accord-

ing to the consumers choice. Either Tuner,

AVX1, 2 or 3 and/or S-In 1,2 or 3.

The NTSC audio IF signal is routed to the MTS

STEREO DECODER.

SPLITTER:

The splitter routes the NTSC signal out to the RF

Out PinP Tunerpath to the PinP Tuner.

MTS STEREO DECODER:

Decodes the NTSC Audio IF signal an decodes it into

Left Total and Right Total. This signal is routed to the

DolbyPro-Logic decoder.

HDTV LINK:

This block routs the ATSC signal received by the

ATSC tuner to the Link Mix.

NTSC YUV A/D:

This block receives the NTSC luminance and chroma

signals and converters them to a digital signal to be

utilized by the MPEG VIDEO decoder.

FROM MAIN MICRO:

This is communication in and out for the Sub-

Microprocessor. Information such as the Selector IC

selection, power on/off commands, etc.., are routedfrom the ARM/Transport or Main Microprocessor sec-

tion.

BLOCK DIAGRAM EXPLANATION FRONT END


8/112

MPEG VIDEO DECODER, NTSC UPCONVER-

SION, OSD:

What ever signal is requested by the consumer as thesource for viewing is processed through this block and isoutput to the YUV D/As.

YUV/DAs:This block takes the digital signals provided to it and

converts them to an analog signal which is usable by the

signal processing circuits.All signals are routed out through the line labeled 2.14

YUV/YIQ, (NTSC Signal up converted to 480P or 2.14HYPBPR which is the HDTV output as 1080I.

MPEG/AC-3 AUDIO DECODER:This block processes the audio component from the

ARM/TRANSPORT or the block A/Ds AUDIO, whichis the NTSC audio processed by the Pro Logic decodingcircuit, labeled as 5.1, (Front Left, Front Right, Center,

Rear Left and Rear Right + Sub Woofer audio also calledLFE. Then this block processes the signal and outputs allaudio to the Audio D/As.

AUDIO D/As:This block is the Digital to Analog converter which con-

verts the digital audio signal sent to it by the ARM/TRANSPORT block and converts it to a usable analogsignal to be processed by the audio output section.

The audio labeling is comprised of the following:L/R= Audio Front Left and Right

LS/RS= Rear or Surround audio Left and RightC/LFE= C for Center and LFE for Sub Woofer, alsocalled Low Frequency Effects.

BLOCK DIAGRAM EXPLANATION FRONT END


9/112

SATELLITE

TUNER/IF

SATELLITE

LINKLINK

MIXHDTV

LINK

HD/NTSC

TUNER/IF

SPLITTER

MTS

STEREO

DECODER

NTSC YUV

A/D

ARM/

TRANSPORT

DRAM

ROM

NRSS/ISO7815

MPEG/AC-3

AUDIODECODER

MPEG VIDEO

DECODER

NTSC

UPCONVERSION

OSD

YUV

D/As

SRAMA/D's

AUDIO

EEROM

AUDIO

D/A's

SD-A/V MODEM

PhoneSD-Satellite

Card

DM -1 M odu le

Satellite

RF OutPinP

Tuner

Cable

Terrestrial

L/ R CompositeVideo

1HYIQ FromMainMicro

L/RLS/ RSC/LFE

L/R

Data

AddressHandshake

5.1 Audio

DP85 FRONT ENDBLOCK

From Main Micro

2.14YUV/ YIQ2.14 HYPBPRP

age0

1-05

VSB

IR from Ft. PanelDimmer, AD, Key In

To 2H Video Circuit

Digital


10/112

C. VIDEO (MAIN) and R/L (AUDIO MAIN):

NTSC Video and NTSC Audio is routed from the

DM-1 Block diagram. They are shown in the Block

Diagram as one line, but they are separate signals.

Anytime a signal is routed from the DM-1 or going to

the DM-1 module, they must be sent through a DM-1

I/F block. This block reduces the noise by a noise can-

cellation process. This process uses the output of a

comparator and routes the output back to the negative

input to subtract the noise. It also level shifts the signalto make it useable by the circuit to which it is routed.

DM-1 I/F BA4558:

This is the noise cancellation and level shift block.

AUDIO/VIDEO SELECTOR TA8851BN:

This is the selector IC. Dependant upon the customers

viewing preference, the DM-1 will communicate via

I2C bus communications and select the NTSC signalwhich is sent to the demodulator. The demodulator

prepares the NTSC signal for the DM-1 module.

This IC selects the following inputs;

Main tuner

Video One, Two or Three

S-In One, Two or Three

PinP Video and Audio outputs. This can be any of the

input provided above except the PinP has its own

tuner.

Note: PinP isnt available when the customer has se-

lected Direct TV or ATSC as its source. This is be-

cause, as will be shown later,the PinP Video is super

exposed upon the NTSC video only

BLOCK DIAGRAM EXPLANATION A/V SELECTOR


11/112

A/V SELECTOR BLOCK DP85CHASSIS

TERMINAL P.W.B.

Comp. Video (Main) R/L (Main)

PinP Video andMonoAudio

C. Video (Main)R/L (Audio Main)

Selected L/ R(NTSC Main Audio)

Video 4 V4, S4, L/R4PinP Videoto PinP Unit

Video D YCTo 3DYC

9V

DM-1I/F

B4558

AUDIO/VIDEOSELECTORTA8851BN

PinPTuner U001

RF from DM-1

VT+33VLockClockDataEnable

+5V +9V

PinPVideoMono


12/112

MAIN VIDEO FROM SELECTOR IC:

At the bottom left hand side is shown the Main Video

from Selector label. This is the NTSC video from the

selector IC. This is routed to two blocks.

3D Y/C:

The 3D Y/C separates luminance from the chroma. It

also add the 3D effect, (if the 3D Y/C is turned on

within the menu). Noise is canceled and the two sepa-rate components are output to the Video/Chroma De-

modulator.

VIDEO/CHROMA DEMODULATOR:

This IC decodes the signal down to its Luminance and

Chroma. components and outputs it as 1HYIQ.

DM-1 I/F:

Noise cancellation and level shifting preparing the sig-nal for the DM-1 module.

1HYIQ:

1HY = Standard NTSC format luminance. (Also

known as 480I).

I and Q = Standard NTSC format, demodulated

chroma components.

SYNC DET.:Separates the Sync signal from the composite video sig-nal.

SYNC DET.:

the signal in one of 4 ways.Normal: This will display a standard 4X3 picture

with black panels on each side of the picture.Fill: This will expand the picture to fill the screen.The top and bottom will be cropped.

Full: This will expand the picture side ways and fillthe screen. However the picture will be non-linear.Smooth Wide: This will keep the center of the pic-

ture linear and stretch the outside edges to fill thescreen.

With the four choices above, the DM-1 module controls

the signal for 3 of them; Normal, Fill and Full. However,during Smooth Wide, the deflection circuit is switched to

perform the stretching of the sides. The slave Microproc-

essor outputs S.Wide during this time.

CUT OFF:= Output; labeled as V. Stop, during the Ser-vice adjustments for Cut Off, (Screen Background con-

trols), the vertical must be collapsed. This output causesthe B+ to the vertical output IC front end to be groundedand grounds the vertical trigger pulse called V. Saw.

D. SIZE:= Output; labeled as Digicon Size, duringSmooth Wide mode, the Digital Convergence Unit, hearafter called DCU, must know that the set is in the dis-

torted deflection mode. This signal tells the DCU justthat.

MAGIC SW:= Input; when the customer presses theMagic Focus button on the control panel, the DCU noti-

fies the slave micro. That it is busy performing MagicFocus. The slave micro. Notifies the DM-1 module and

BLOCK DIAGRAM EXPLANATION

SYSTEM CONTROL AND SIGNAL PROCESSING


13/112

selection to activate AFC.

MAIN SYNC DET.= Input; This input is used for Ser-vice OSD positioning and Auto Programming channeldetection.

PinP SYNC DET.= Input; This input is used for judge-ment of the Slave Microprocessor to determine the AFC

Loop activity of the PinP Tuner.

MUTE (Audio):= Output; during channel change, ex-ternal video selection with no input, power up or poweroff, and loss of Vertical Blanking, the audio and videoare muted.

V.MUTE (Video):= Output; during child lock, channelchange, or power on/off, the video is muted.

POWER:= Output; when the front power button or theremote power button is pressed, the DM-1 module noti-fies the sub-micro. And the sub-micro. Outputs a poweron/off command to the relay driver Q-007. Outputs high

for ON and low for OFF.

OSD & OSD BLK:= Output, this is the on screen char-acters for the Service Menu only. OSD Blk is OSD

blanking. This cleans us the video where the OSD is tobe inserted.

HV BLK: = Input; this inputs are utilized by the Micro-processor for Service OSD positioning.

of a quad Or Gate and outputs the signal to be superim-posed upon the video signal path from the DM-1 Mod-

ule.

PinP VIDEO FROM SELECTOR IC:The video fromthe PinP tuner is routed to the PinP unit and the Sub Mi-croprocessor for Closed Caption decoding.

BLOCK DIAGRAM EXPLANATION

SYSTEM CONTROL AND SIGNAL PROCESSING


14/112

TV uCOMMicroprocessor

DP-85 CHASSIS SYSTEM CONTROL & SIGNAL PROCESSINGBLOCK

SIGNAL P.W.B.

Page0

1-10

H Sync

PinPSync Det.

PinP V

F PanelMain Sync DetPinP Sync DetMute (Audio)V.Mute (Video)PowerOSD & OSD Blkfor Service Menu

HBlkS. Wide

Cut. OffD. Size

Magic Sw.Closed Cap. Data

MEMORY I2C

I2C

VIDEO/CHROMA

DEMOD

3DY/CUnit

PinPUnit

Sync Det.

Sync Det.

DM-1

I/F

OSDMIX

+

Digital OSD / Busy

OSDRGBYs

OSD

RGB

Ys

V Sync

I2

C

Y/ C

Y

PinP

Video

Y/ C

PinP Video from SelectorIC

1 H CompositeSync

1HYIQ

Main Video from Selector IC

YIQ

YIQ

MixClamp

AD8056

CCDV

ideo

Main

CCDV

ideo

PinP

H BLK PH

HV BLK

Side PanelAPLfrom 2HVideo PWB


15/112

The 2H Video PWB is similar to the Rainfor-est circuits used in the past. The YUV/YIQ

(480P) and/or the Y-PR/PB (1080I) is routed

through another DM-1 Interface IC for noise

cancellation and level shifting and into theRainforest chip, IX01. Here the signal is pre-

pared for the CRTs. Pedestal level detection,

Chroma preparation, OSD RGB from eitherthe DCU or the Slave Microprocessor is input

here.

Remember that the OSD for Customer usagesuch as the Channel numbers, clock, Main

Menu, etc.. is generated by the DM-1 Mod-

ule.

Also, ABL controls the brightness andContrast; as well as the color level at this

chip.

The Velocity modulation control signal is

produced from the Rainforest IC. This signalis a representative of the Peak White compo-

nents of luminance and drives the Velocity

Modulation coils on each CRT.

BLOCK DIAGRAM EXPLANATION 2H VIDEO


16/112

YUV/ YIQ/Y PB PR

RGB PROCESSORTA1276AN

2 H VIDEO BLOCK DP-85CHASSIS

2H VIDEO P.W.B.

YUV RGB+9V

RGB

APLDETECT

HV Blk HBLK PH

DM-1

I/F

+5V -5V

2 14 HV SYNC

2.14

HVSYNC

SPANEL

Side PanelAPL

+5V

Clamp H/ V Blk.

VM

YUVYIQYPBPR

Y

YUV/ YIQ/Y PB PR

2.14 HV SYNC

OSD RGBABLI2C


17/112

The 61HDX98B deflection circuit differs from con-

ventional Hitachi product. It utilizes in a sense, two

horizontal output circuits. One for Deflection and on

for High Voltage. The notations around the Block dia-

gram will be described in a counter clock wise fashion

as best a possible.

CUT OFF:

Cut of collapses the Vertical circuit during I2C Bus

alignments, during CRT Set Up.

I2C:

Communication from the Sub Microprocessor I001

during sweep variations due to Standard/NTSC 480P

mode and 1080I High Definition mode.

ABL:

ABL voltage is generated by monitoring the current

through the flyback transformer. This voltage willfluctuate down when the scene is bright and up when

the scene is dark. The ABL voltage will manipulate

the screen brightness and contrast to prevent blooming

under these conditions.

HV SYNC:

The composite sync is routed into the Sync processor

which determines the sweep condition for the signal

being provided.

H and V BLK:

Horizontal and Vertical Blanking is developed within

the Deflection circuit. The Horizontal Blanking pulse

Busy notifies the sub Microprocessor I901 which in

turn notifies the DM-1 module that the DCU has en-

tered the DCAM. During this time, the DM-1 module

ignores the remote control commands.

MAGIC SW:

When the customer presses the Magic Focus button on

the front of the set, it produces a command for the

DCU to begin the Magic Focus process.

D SIZE:

Digital Size is a control signal for raster enlargement

when MAGIC FOCUS is operated. Raster enlarge-

ment is required for the MAGIC FOCUS PATTERN

to hit the photo sensors.

This signal is output from DCU and input to the Sub

Microprocessor I901. The Sub Microprocessor con-

trols the I702 on the DEF.SUB PWB) for enlarging

raster size.In case of AP-85, this control signal is called "A.

SIZE". It's the same function between DIG.SIZE and

A.SIZE.

S WIDE:

Smooth Wide is a condition entered through the Menu

by the customer while watching an NTSC 4X3 aspect

video source and the customer wants to fill the screen.

TO CONVERGENCE YOKES:

The DCU provides compensation signal for deflection

abnormalities to the convergence output IC. The Con-

vergence output IC in turn, amplify the signals and

BLOCK DIAGRAM EXPLANATION DEFLECTION BLOCK


18/112

is superimposed upon the static focus voltage to com-pensate for beam shape abnormalities which occur on

the outside edges of the screen because the beam has

to travel further to those locations.

HV PARABOLA:

Described above.

SCREEN 700V: 700V Supplied to the screen grids on

the CRTs.

FOCUS 9KV:

Focus voltage supplied to the CRTs.

32Kv HV:

32,000 volts DC supplied to the CRTs anodes.

TO DEFLECTION YOKES:

Horizontal and Vertical deflection wave forms driving

the deflection yokes.

I NTERNAL BLOCKS DESCRIPTI ON

HV CONTROL:

The uPc1344C IC generates the horizontal drive signal

utilized by the High Voltage circuit. The HV control

IC receives its locking pulse from the Deflection cir-

cuit. A feed back voltage is sampled from the High

Voltage Regulation Detector circuit and comparedwith a reference voltage to maintain an accurate 32KV

on the CRTs.

I702 on the Sub Deflection PWB generates the Verti-cal Saw signal. This signal is controlled by several

factors. The Sync Processor detection and I2C data

communication.

DIST CONTROL:

Distortion control is another signal produce by I702

and sent to the Side Pin cushion circuit. These com-

pensation parabolic wave forms are combined with the

horizontal circuit to compensate for Side pincushionerrors.

H-SIZE SIDE-PIN CONTROL:

This circuit generates the Side Pincushion Distortion

compensation pulse which is impressed onto a coil

located in the output side of the Deflection Output sec-

tion and compensates for Pin Cushion distortion.

HORZ. DRIVE and HORZ. OUT:

This circuit comprises the Drive and Output for the

Deflection output circuit.

S-CORRECT (SMOOTH MODE):

During Smooth mode, the deflection circuit is manipu-

lated so that the outside 1/3 of the picture is stretched

to fill the screen. The center 2/3 of the picture is left

undistorted. When an S Wide signal is received, a ca-

pacitor is switched off on the output side of the De-

flection output circuit.

PHOTO SENSOR:

There are 8 sensors located on the internal outside



19/112

vice Switch is pressed. This switch is located on thedeflection PWB. By removing the front speaker grill,

the Service Technician has access to this switch.

CONV. OUT:

The Convergence output block represents the two (2)

Convergence output ICs. These two ICs contain the

amplifiers for the Red, Green and Blue convergence

outputs.

HDT T752:

Represents the Deflection output transformer. By

separating the Deflection circuit from the High Volt-

age, any distortions that would be generated by fluc-

tuations within the High Voltage wont be visible

within deflection.

DYNAMIC FOCUS OUT:

This circuit amplifies the parabolic signals provided

by the Deflection circuit and I702 on the Sub Deflec-

tion PWB and impresses these wave forms onto the

static DC voltage use for focus. This keeps the beam

as sharp or focused as possible in the corners of the

screen.

HIGH VOLTAGE REGULATION DETECTOR:

This circuit monitors a feed back voltage produced

from the High Voltage Flyback transformer and routes

an output signal to two circuits.1.) A sample voltage is sent to the Horizontal Driver

IC for regulation of the High Voltage and;

2.) If the High Voltage climbs too high, a shut down



20/112

DP-85 DEFLECTION BLOCKDIAGRAM

Page01-1

6

HV Control

(uPC1344C)

HV DRIVE

(MC3415IP)

HV OUT

(IMB12-140)

FBT

THO1HIGHVOLTAGE

REGULATION

DETECTOR

DYNAMIC

FOCUS OUT

2SC4686X3

FOCUS

PACKVERTICAL

OUT

LA7648

SYNC.

PROCESSOR

DIST.

CONTROL

H-SIZE

SIDE-PIN

CONTROL

+

S CorrectedV-SAW

DC couple

/3

HORZ.

DRIVE

HORZ.

OUT

S-CORRECT(SMOOTH MODE)

SENSOR

DISTRIBUTION

PHOTO

SENSOR

SERVICE

SWITCH

CONV.

OUT

+

Focus(9KV)

Screen(700V)

+

ABL

6/

8/

/ 8

DIGITAL

CONV.

UNIT

+B (130V)

34v, -34v

6/

HVParabola

1100V

Vcp

+26V,

26VS Wide

S Wide

D Size

Magic SW

V

Blk

H Blk

HV

Blk

DigRGB

Bu

sy

IR

H Blk

V Parabola

Saw

Size RegulationControl

VERTICAL

RAMP

GEN.

DiodeModulator

To Deflection YokesTo Deflection Yokes 32KvHV

Focus12Kv

3/

/3

DFOut

Retrace Pulse

HDT

T752

Cut Off

I2C

I2C

ABL

HV Blk

IR

Dig RGBBusy

To ConvergenceYokes

HV Sync

H Drive

Deflect ion Tran sform er

High Vol tage

Trans former

FromuP


21/112

VIDEO OUTPUT

AMP

CPT P.W.B. (R)

VM OUT

VM OUT P.W.B.

SCREENFOCUS CONV.

VIDEO OUTPUT

AMP

CPT P.W.B. (G)

VIDEO OUTPUT

AMP

CPT P.W.B. (B)

Def.

Yokes

30KV

HV

R

G

B

Beam Shape, Beam Alignment,Focus, VM Coil,

Deflection and Convergence Yokes

Page01-17

DP-85 CRT PWB BLOCK DIAGRAM

RGB

VM

220V

12V

220V

12V

220V

12V

220V

26V


22/112


23/112

DP-85 REAR PANEL (61HDX98B)

DSS IN

SMARTCARDSLOT

TelephoneInterface

DM-1 MODULERear Panel 1

ANT B

ANT A

L

VI DE O

(MONO)

AU DI O AU DI O AU DI O

(MONO)

VI DE O VI DE O

INPUT 1 INPUT 2

L

R

S-VIDE O S-VIDEO

L

R

L

R

+

-

L

-

+

R

+

-

R

-

+

TRANSMITTEROUT

R L

R L

FIX/VARIABLEOUT

INT.

EXT.

FRONT SPEAKER8 ONLY

REAR SPEAKER8 ONLY

LFE/SUBWOOFER OUT

INPUT 3

(MONO)

Page01-19

AC-3 Jack


24/112

Linear

Linear

Stretched Stretched

FILL MODE (4x3)

Deflection Circuit remains at 33.75KHz for all modes, (NTSC & SDTV =540P, HDTV =1080I. (Labeled in schem ati c as 2.14H )

Slightlyaboveblack

to avoid4X3

burningan image

Page01-20

Side PanelSide Panel

Cropped

Cropped

DP-85 CHASSIS 4 MODES TO DISPLAY A (4x3) IMAGE ON (16X9) DISPLAY

DM-1 Module controls the video content for Normal, Full and Fill modes,

while the deflection circuit is manipulated for the Smooth Wide mode.

NORMAL MODE (4x3) FULL MODE (4x3)

SMOOTH WIDE MODE (4x3)

Full Mode 4X3 Stretched to fit (Non-Linear)Normal Mode 4X3 with Black Mask (Linear)

Fill Mode 4X3 Cropped (Linear)

Smooth Wide Mode 4X3 Center (Linear)

Outside edges Stretched to fit (Non-Linear)


25/112

DP-85 DIGITAL CIRCUIT POWER SUPPLY SHUTDOWN BLOCK

I905

Photocoupler

I901

ShutDown Pin (7)

on Power Supply

Driver &

Output IC

7 3 2

Shut Down SCR

+5V Short Det.+3.3V Short Det.

+9V Short Det.-5V Loss Det.

+3 3Vs Too Hi Det+5V Too Hi Det


26/112

DP-85 DIGITAL CIRCUIT POWER SUPPLY SHUTDOWN DIAGRAM

I905Photocoupler

I901ShutDown Pin (7)

on Power Supply

Driver &

Output IC

DIGITAL & SIGNAL

POWER SUPPLY SHUT-DOWN

Active Low

D908Red LED

Shut Down

IdentificationR919

STBY +12V

R9A

0

D958

Q916

Vcc

Q917 D972

D925

+5V

+9V

7 3 2Q913

ShutDown

S.C.R.

D953D952R975

TV 5V Short Det.

TV 9V Short Det.

-5V Loss Det.

B

E C

PQS1

OffOn

OffOn

No Start Up B+ = Off

Normal = Glowing

Blinks during Shutdown because

of the internal current draw.15.1V ~ 22.5V pin 5 I901

DIGITAL & SIGNALPOWER SUPPLY SHUT-DOWN

Active High

5

R907

R908

D964

1/2 AC In

D905

Run B+

Start Up B+

NOTE: +12VS is the same as A12V and STBY12V


27/112

R919

7

I901Driver/Output IC

I905

100% Dead Time &IC B+ Detection

5

Osc B+

4R916

I905 Shutdown

Photocoupler

Q913

Shutdown

SCR

D908 is a RED L.E.D.

Off = No I901 B+

On (Mid) = I901 B+

On (Bright) = Shutdown

R928 R945

TV 9V

R9E3

TV 5V

R927

AudioF/R 28V

R956

+12VS

R939 R965

+5VS

R966

-5VS

DP-85 CHASSIS L.E.D. (VISUAL TROUBLE DETECTION) DIODES

(SUB POWER PWB) DIGITAL POWER SUPPLY 10 GREEN L.E.D.s and 1 RED L.E.D.

(11 Total L.E.Ds. for visual trouble sensing observation)

3

1

2

Vcc

ALL GREEN L.E.D.s

12 Shut Down

Inputs

Start Up or Run

24.2V

1.9V

24.2V

1.9V

AudioCenter 21V

LNB Power

13V/19V

R969

+3.3VS

R972

D3.3V

Page0

2-03

D947D920 D930 D971D919 D928 D924 D943 D962 D945

D908


28/112

DP-85 DIGITAL CIRCUIT POWER SUPPLY DISTRIBUTION DIAGRAM

Page

02-

04

ProtectorE996 : 5K

Rectifier

+28V : D911

Rectifier

+24V, 5:D914

Voltage

Control24, 5V

Q915

Switching

Transformer

T901

FUSEF901

SwitchingControl

I901

Feedback

I904

Protect

I905TV ON/OFF

SwitchQ914, Q918

ProtectorSCR: Q913

D908:Protect Red LED Over

VoltageDetector

"D"

Short CircuitDetector

D

ZD

33VS :

+33V

Audio

+21V

STAND BY +12V

CENTER +21VD920 : C21

D925:14.7VD928 : +12V

D930 : TV9V D925:

10.8V

D933 : >6.7V

Protector

E995 : 7K

Protector

E994 : 7K

Rectifier

+21V : D912

Rectifier

+35V : D918

REAR +28VD919 : F28

DP86Only

= RED OR GREEN L.E.D.

A12V

RelayS902

RelayS903


29/112

DP-85 DEFLECTION POWER SUPPLY SHUTDOWNBLOCK DIAGRAM

-M13V

Heater TooHigh Det.

QP05

ShutDown

S.C.R.

IP06Photocoupler

IP01ShutDown Pin (7)

on Power Supply

Driver &Output IC

220V Short Det.

Heater

Short Det.

DP23

DP34

Flyback

Excessive

DP25

X-RAYPROTECT

QP06

Deflection B+ (130V)

Excessive Voltage Det.

Deflection B+ (130V)

Excessive Current Det.


30/112


31/112


32/112

DP-85 DEFLECTION POWER SUPPLY DISTRIBUTION DIAGRAM

Page0

2-08

ProtectorEP96: 7K

ProtectorEP97: 7K

ProtectorEP95: 7K

ProtectorEP94: 7K

ProtectorEP93: 5K

ProtectorEP92: 4K

Rectifier+220V:DP07

Rectifier+7V:DP08

Rectifier+15V:DP09

Rectifier+15V:DP10

Rectifier+28V:DP12

Rectifier-28V:DP13

Rectifier+130V:DP11

Regulator+6.3V: IP02

Regulator+13V: IP03

Regulator-13V: QP01

ProtectorEP96: 7K

SwitchingTransformer

TP91

ProtectorEP91: 4K

SwitchingControlIP01

FeedbackIP05

ProtectIP06

Voltage Control+130V: IP04

Protector

SCR: QP05

DP06:ProtectRed LED

HVccSwitchQP08

HVcc+12V

PowerOn/Off

DP-85 DeflectionCircuit Protection

Protect In

OverVoltageDetector

ShortCircuit

Detector

D

D

D

D

D

D

D

ZD

ZD

ZD

ZDDeflection

+130V

Conver:-28V

Conver:+28V

Vert:-13V

Vert/HVcc:+13V

Heater+6.3V

DP22: +130V QP04: >1.4V

DP21: -28V DP25: >-24V

DP20: +28V DP31: -13V

DP15: +13V DP30: 20V

DP36,DP37:32V

DP18:>166

V

Video

+220VPower Supply

Block

Live Cold


33/112

QP08

I001

Slave MicroPower On/Off

DM-1

ModulePower On/Off

by Remote orFront Pannel

53

Q007

PQS1

3

A12V

1

2

I7021

I701

23 DVccVRef-In

Power ON

Driver

(Relay Driver)

DP-85 DEFLECTION Vcc PRODUCTION CIRCUIT

Other Power

On/Off Circuits

PQD2

5

5

DP41

Start Up Power

DEFLECTION PWBSUB POWER PWBSIGNAL PWB

From I907 A12V Reg.A12V or STBY +12V


34/112

HV Sample

I702

18 16H Out

17 FBP In

AVCCSwitched AVCC

29Osc.

26 H. Sync In

Q701

PDD1

7

6

1 7

8130V V1

1112

Def.H Pulse

+28V

+28P

Q751

1

3

28V

Q777T751

H. Def. Yoke G

H. Def. Yoke B

H. Def. Yoke R

T752

4

6

C770

C771

Q755PSD2

6To I001 OSDPosition

To PinPUnit

H.Blk.

9

To Convergence Circuit

To Sweep Loss Det. Circuit

IH01

1 A1Q1 12

IH0210 Osc 7

Error13

Clamp

12 14

1

Drive

9

10

HighVoltage

TH01

QH08 QH01

QH09

QH10

130V V2

12

QH05

QH04FBP In

Ref. V.

QH06HV Sample too HighX-Ray Protect

DP-85 SERIES CHASSIS HORIZONTAL DRIVECIRCUIT

Page0

3-01

To Side Pin Circuit

To Dynamic Focus

To Deflection Loss

To X-Ray Protect

910

M28V

M28P


35/112


36/112

Signal

PWB

DP-85 CHASSIS A.B.L. CIRCUIT DIAGRAM

DX02 RX82

CX39

45

3

B+

To

Focus

CH25

C

RH59RH58

High Voltage B+

130V V2

13V

9V

RX78 RX80

IX01

Rainforest

ICABL

SDA2

PSZ2

SDA216

To Anodes

ABL

To QH01

Collector of Horz.

Output Transistor

Signal Sub

PWB

Deflection PWB

Clamp

ABL Pull-Up Resistors

As Brightness goes Up, ABL Voltage goes Down. (Inverse Proportional)

[Current Path ]

QX14RX79

CX21RX81

9

27

See uP

Data

Signal

Path

Page04

-02

DH33

RH23

RH22

QH03

CH18

See XRay Protect

RH56Deflection B+ 130V

V1

PSD2

1

DX01 CX20

CX24PSZ1

SCL2SCL2

17 28

TH01


37/112


38/112


39/112


40/112


41/112

PSU1

16

15

VMUTE2DS20 DS21

QS05

CS86RSH3CS73

MUTE2DS22 DS23

QS06

CS87RSH4CS74

Transmiter Right

Transmiter Left

VMUTE2

DS24 DS25 QS11

CS84RSH1CS77

MUTE2

DS26 DS27QS12

CS85RSH2CS78

Fixed/Variable Right

Fixed/Variable

Left

CS83CS82

DP-85 MUTE CIRCUIT DIAGRAM (SURROUND PWB)Also see Audio and Video Mute Circuit Diagram

Also see Mute Circuit Diagram (Audio Output PWB)

Transmiter Right

Out

Transmiter Left

Out

Fixed/Variable

Right Out

Fixed/Variable

Left Out

RSC6

RSC4

RSC5

RSC7

RSF2

RSF4

RSF5

RSF3

RSF8


42/112


43/112


44/112


45/112

H. SIZE1350

46.7

26 119 269511910710710710410411495

DIGITAL CONVERGENCE OVERLAY DIMENSIONS

BR

H. SIZE

V. SIZE

Centering Offset

1350

41

49

97

97

97

97

97

97

4941

20 88 113.4 2088113.4113.4113.4113.4113.4113.4113.4

762

DIGITAL CONVERGENCE OVERLAY FULL MODE

DIGITAL CONVERGENCE OVERLAY SMOOTH MODE

Part Number H312182A


46/112

"MOVE" = "RASTER ADJ"

Used to align Red and Blue

raster with Green.

(2 Additional lines will Appear)

DP85 SERIES CHASSIS "CLU-614MP" REMOTE CONTROL

REMOTE PERSONALI TY WHI LE I N THE

DIGITAL CONVERGENCE ADJUSTMENT MODE D.C.A.M.

V O L C H

MUTE

LAST

TV / CABLE / SAT

V C R

AU DI O

GUIDE

INFO EXIT

L

I

GH

T

T V S A TCABLE

DT V /SAT S W A PPI P

PIP CH M O V EA N T

P O W E R

"PIP" = "ROM READ"

Reads old R.O.M. data.

(Last data stored in R.O.M.

(Press 2 times)

"SWAP" = "ROM WRITE"

(STORE)

Stores data into R.O.M..

(Press 2 times)

"PIP CH" = "INITIALIZE"

Perform after

STORE&before EXIT

[SWAP + PIP CH]

"MENU" = "REMOVE COLOR"

Removes color

not being adjusted.

(Will NOT remove GREEN )

"ANT" = "PHASE"

(Aligns Cursor to Grid)

"INFO" = "CALCULATION"

(Calculates mid-points)

"EXIT" = "ENTER & EXIT"

Enter or Exit the D.C.A.M.

Must initially enter D.C.A.M. with

Service Button on chassis.

(Press 5X)

Toggles between External Video

and Internally generated Cross

hatch. After exiting the DCAM,

set can change channels or

To Clear R.A.M. data.

Turn set OFF.

Press and hold the Service Button on

deflection P.W.B. Then Power

Button.

*

*

D.C.A.M.

Digital convergence adjustment

mode


47/112

Page07-01

DP-85 CHASSIS SLAVE MICROPROCESSOR I-001 PIN/PORT DESCRIPTIONPin No. ID Port Identification Function Active

1 HSYNC OSD H. Pulse Receives Horizontal Blanking pulses 5VP/P for Service OSD positioning Pulse

2 VSYNC OSD V.Pulse Receives Vertical Blanking pulses 5VP/P for Service OSD positioning Pulse

3 AD4 AFC Receives the AFC S-Curve signal produced by the PinP tuner indicating the accuracy of the PinP tuning. Signal

5 TIM2 PIP Sync Det Detection of PinP Tuner Sync for Auto Programming and AFC Low

6 P43 AC (50/60 Hz) Detection of A/C line frequency from Schmitt Amp Q015 and Q016 Pulse

7 AD3 Side Panel APL Timing Pulse input for OSD creation of Side Panels Pulse

8 AD2 Dimmer (Not Used) n/a

9 P26 V.STOP Cutoff. This output Stops the Vertical circuit and shuts off the Spot circuit High

10 P27 CH Change Mute Mutes Audio through Q022 to Surround PWB during channel change High

11 PWM4 H.BLK-HP Outputs a control signal to the RC network attached to IZ06 controlling the phase of the Side Pannel pulses. High

12 P50 MAIN/PinP Outputs a control signal to I012 for selection of Main Sync or PinP Sync. High

13 P01 SCL Clock for the EEPROM Data

14 P47 Smooth Wide Outputs control signal to Q753 and I751 to switch deflection to Smooth Wide High

15 P02 SDA Data for the EEPROM Data

16 P51 4:3 When Fill, Full or Smooth Wide mode is selected in NTSC, output high to prevent generation of Mask Pulse

since no side panels are used.

High

17 SIN Tx Data output from Slave Micro to DM-1 module Data

18 N/A N/A No Connection

19 INT1 Request Request data from/to the DM-1 Module Data


21 SOUT Rx Data input from DM-1 module to Slave Micro Data


23 SCLK Clock Clock for the DM-1 data transmission Data

24 Avcc Avcc +5V

25 HLF HLF

26 RVCO TRVCO Resistive Fixed

27 VHOLD VHOLD Fixed by Capacitor

28 CVIN C. Video Input Input for Composite Video for Closed Caption detection. However, the DM-1 module actually generates the Closed Caption charac-ters.

Signal

29 CNVSS CNVSS

30 OSC In OSC in

31 OSC Out OSC Out

32 VSS Ground Ground

33 Vcc Vcc +5V

34 OSC In OSC In

35 OSC Out OSC Out


48/112

Page07-02

DP-85 CHASSIS SLAVE MICROPROCESSOR I-001 PIN/PORT DESCRIPTIONPin No. ID Port Identification Function Active

36 CVIN Reset Reset active Low. Reset by I003 during first AC power application and by Q026 when the DM-1 module resets the Slave Microproc-

essor.

Low

37 P31 CLOCK Clock for the PinP Tuner data communications Data

38 P30 DATA Data for the PinP Tuner for Channel change, Programmable Divider, band selection, etc.. Data

39 P03 ENABLE Enables the reception of data by the PinP Tuner Data40 P16 Headphone SEL Det Active Low detects the insertion of the Headphone Jack Low

41 P15 LOCK Notifies the Slave Micro by a Low, when the PinP tuner PLL Phase Detector is locked Low

42 SDA2 SDA Data for controlling the 1H Video, 2.14 Video Processor, PinP, LFE/Center Audio Control, Headphone/Rear Audio Control, 3DYC

and Deflection IC's.

Data

43 SDA1 SDA Data for the PinP/Front audio controller and AV switch IC Data44 P67 Auto

Convergence SWWhen the Magic Focus switch is pressed, the DM-1 module notifies the Slave Micro.Then the Slave Micro outputs a high from this pin to the DCU to start Magic Focus.

High

45 SCL2 SCL Clock for controlling the 1H Video/Chroma, 2.14 Video Processor, PinP, LFE/Center Audio Control, Headphone/Rear Audio Control,

3DYC and Deflection IC's.

Data

46 P66 P.BLK. (Not Used) n/a

47 SCL1 SCL Clock for the PinP/Front audio controller and AV switch IC Data

48 P65 Data Data to control the Front L/R and Center Graphic Equalizer Data

49 P10 KEYIN Not Used. n/a

50 P20 KEYIN Notification of the OEM in which the chassis is used. Diode D002 identifies it as Hitachi by feeding back Key Out2 pulses from pin

38.

Data

53 P20 Power ON/OFF When the DM-1 Module instructs the Slave Micro. to turn ON, this output goes high High

54 P62 Clock Clock for data communications to control the Front L/R and Center Graphic Equalizer Data

55 P07 Auto Convergence Size When Magic Focus is initialized or run, the deflection size is widened to guarantee light strikes the Photo cells. High

56 P61 V.MUTE Mutes Audio and Video through Q008 and Q010 to Sub Video and Surround PWB during channel change High

57 P06 Auto

Convergence Busy

Whe the DCU is activated by the Service Only switch, this pin is notified via Q002. After notification,

the Slave Microprocessor notifies the DM-1 module via data to ignore Infrared commands.

High

58 P60 UV/IQ Not Used. n/a

59 P05 HOR. Det Receives a High when the 130V line is drawing excessive current. Shuts off relay. High

60 P04 Run Supply Det. (Not Used) n/a

61 OSC Blk OSD (Blk) Outputs a pulse slight wider and in time with the OSD characters to clean up video where character will be displayed. Pulse

62 B OSD (B) Outputs Blue characters for the Service Menu Pulse

63 G OSD (G) Outputs Green characters for the Service Menu Pulse

64 R OSD (R) Outputs Red characters for the Service Menu Pulse


49/112


50/112


51/112

DP-85 SERVICE ADJUSTMENT ORDERPREHEAT BEFORE BEGINNING

Order Adjustment Item Screen Format Signal DCU Data1 Cut Off FULL NTSC

2 Pre Focus FULL NTSC

3 DCU Phase Data Setting FULL NTSC

4 DCU Phase Data Setting SMOOTH NTSC

5 Horz. Position Adj. (Coarse) FULL NTSC

6 Horz. Position Adj. (Coarse) SMOOTH NTSC

7 Raster Tilt FULL NTSC CLEAR

8 Beam Alignment FULL NTSC

9 Raster Position FULL NTSC CLEAR

10 Horz. Blanking Phase FULL NTSC

11 Horz. Size Adjust FULL NTSC CLEAR

12 Vertical Size Adjust FULL NTSC CLEAR

13 Trapezoid FULL NTSC CLEAR

14 Side Pin FULL NTSC CLEAR

15 Horz. Size Adj. SMOOTH NTSC CLEAR

16 Vertical Size Adjust SMOOTH NTSC CLEAR

17 Trapezoid SMOOTH NTSC DCU Grid CLEAR18 Side Pin SMOOTH NTSC CLEAR

19 Beam Form NORMAL NTSC


52/112

DP-85 I2C SERVICE MODEPage 1 of 4 Total of 117 Adj. with 13 Field Adjustments

No.OSD

(Text)ADJUSTMENT ITEMS

ADJ.

RANGE

INIT.

VALUEADJ. VARIABLE RANGE

CONTROLLED

DEVICE

1 SERVIC SERVICE Off/On Off YES

2 SUBBRT SUB BRIGHTNESS 0~255 127 YES -40IRE to +40IRE TA1276AN

3 HBLKPH H. BLK. PHASE 0~63 32 YES 4 HPOS-F H. Position (Full) 0~127 76 YES uPc1885

5 SPIN Side Pin (Full) 0~63 22 YES uPc1885

6 TRAP Trapezoid (Full) 0~63 25 YES uPc1885

7 HSIZ H. Size (Full) 0~127 30 YES uPc1885

8 VSIZ-F V. Size (Full) 0~127 46 YES uPc1885

9 H-POS-S H. Position (Smooth) 0~127 76 YES uPc1885

10 SPIN-S Side Pin (Smooth) 0~63 18 YES uPc1885

11 TRAP-S Trapezoid (Smooth) 0~63 26 YES uPc1885

12 HSIZ-S H. Size (Smooth) 0~127 58 YES uPc1885

13 VSIZ-S V. Size (Smooth) 0~127 47 YES uPc1885

14 PHPOSI PIP H. Position (CENTER) 0~63 14 PinP Unit15 PVPOSI PIP V. Position (CENTER) 0~63 12 PinP Unit

16 CONT Contrast (CENTER) 0~127 63 UNI-COLOR -18dB to 0dB TA1276AN

17 CONT-T Contrast (Center offset) Theater Mode 0~127 63 UNI-COLOR -18dB to 0dB TA1276AN

18 BRT-YIQ Brightness YIQ TA1276AN

19 BRT-T Black Level (Center offset) Theater Mode 0~255 127 -40IRE to +40IRE TA1276AN

20 C-YIQ Color (Center) (NTSC-YIQ) 0~127 63 Color Min -20dB to +4dB TA1276AN

21 C-170 Color (Center) (SMPTE-170M) 0~127 63 TA1276AN

22 C-709 Color (Center) (ITU-R709) 0~127 63 TA1276AN

23 T-YIQ Tint (Center) (NTSC-YIQ) 0~127 63 TINT -32deg to +32deg TA1276AN

24 T-170 Tint (Center) (SMPTE-170M) 0~127 63 TA1276AN

25 T-709 Tint (Center) (ITU-R709) 0~127 63 TA1276AN

26 S-NTSC Sharpness (Center) (NTSC) 0~127 63 Sharpness Min -20dB to +14dB TA1276AN

27 S-SDTV Sharpness (Center) (SDTV) 0~127 18 TA1276AN

28 S-HDTV Sharpness (Center) (HDTV) 0~127 63 TA1276AN

29 S-T Sharpness (Center offset) Theater Mode 0~127 63 SHARPNESS -20dB to +14dB TA1276AN

30 G-9300 Green Drive (9300K) 0~127 63 DRIVE -5dB to 0dB to +3dB TA1276AN

Only adjust those adjustments with a YES in the ADJ column. Page 08-02


53/112


No.OSD


ADJ.

RANGE

INIT.


CONTROLLED

DEVICE

31 B-9300 Blue Drive (9300K) 0~127 63 TA1276AN

32 G-7500 Green Drive (7500K) 0~127 54 TA1276AN

33 B-7500 Blue Drive (7500K) 0~127 46 TA1276AN34 R-CUT Red Cutoff 0~255 127 R CUTOFF 2V to 2.5V to 3V TA1276AN

35 G-CUT Green Cutoff 0~255 127 G CUTOFF 2V to 2.5V to 3V TA1276AN

36 B-CUT Blue Cutoff 0~255 127 B CUTOFF 2V to 2.5V to 3V TA1276AN

37 HFVM H. F/V Min. OSC Frequency (Full) 0~63 8 uPc1885

38 HFVO H. F/V OSC Frequency (Full) 0~63 31 uPc1885

39 SPB-F Side Pin Balance (Full) 0~31 15 uPc1885

40 HDTY-F H. Duty (Full) 0~31 15 uPc1885

41 SPC Side Pin Corner (Full) 0~63 31 uPc1885

42 ----- Don't Care

43 VSL-F V.S. Linearity (Full) 0~31 15 uPc1885

44 VCL-F V.C. Linearity (Full) 0~31 15 uPc188545 ----- Don't Care

46 ----- Don't Care

47 ----- Don't Care

48 RGBBRT RGB Black Level (Digital Convergence) 0~127 63 -4dB to 0dB to +3dB TA1276AN

49 RGBCNT RGB Contrast (Digital Convergence) 0~127 90 -18dB to 0dB TA1276AN

50 WPSL White Peak Suppressing Level (WPSL) 0~1 1 0:130IRE 1:110IRE TA1276AN

51 HIBRT High Bright Color (HIBRT) 0~1 0 0:Off 1:On

52 CGAMMA Color Gamma Correction Point 0~3 0 0:Off 1:O.2Vp-p 2:0.4Vp-p 3:0.6vp-p

53 CLIMIT Color Limiter Level (CLR) 0~1 0 0: 1.8Vp-p 1: 2.2Vp-p TA1276AN

54 SUBCNT Sub Contrast 0~31 16 -3dB to +3dB TA1276AN

55 YGAMMA Y-Gamma CURVE 0~3 0 0:Off 1:-2.5dB 2:-4.8dB 3:-6.5dB TA1276AN

56 CDE CDE 0~1 1 0:On 1:Off TA1276AN

57 RPHYIQ (R-Y) Phase (NTSC-YIQ) 0~3 2 0:90deg 1:92deg 2:94deg 3:112deg TA1276AN

58 RBGYIQ (R-Y) / (B-Y) Gain (NTSC-YIQ) 0~3 0 0:0.56 1:0.68 2:0.79 3:0.86 TA1276AN

59 GPHYIQ (G-Y) Phase (NTSC-YIQ) 0~3 2 0:236deg 1:240deg 2:244deg 3:253deg TA1276AN

60 GBGYIQ (G-Y) / (B-Y) Gain (NTSC-YIQ) 0~3 0 0:0.30 1:0.34 2:0.40 3:0.45 TA1276AN



54/112


No.OSD


ADJ.

RANGE

INIT.


CONTROLLED

DEVICE

61 RPH170 (G-Y) Phase (SMPTE-170M) 0~3 0 0:90deg 1:92deg 2:94deg 3:112deg TA1276AN

62 RBG170 (R-Y) / (B-Y) Gain (SMPTE-170M) 0~3 2 0:0.56 1:0.68 2:0.79 3:0.86 TA1276AN

63 GPH170 (G-Y) Phase (SMPTE-170M) 0~3 2 0:236deg 1:240deg 2:244deg 3:253deg TA1276AN64 GBG170 (G-Y) / (B-Y) Gain (SMPTE-170M) 0~3 3 0:0.30 1:0.34 2:0.40 3:0.45 TA1276AN

65 RPH709 (R-Y) Phase (ITU-R709) 0~3 0 0:90deg 1:92deg 2:94deg 3:112deg TA1276AN

66 RBG709 (R-Y) / (B-Y) Gain (ITU-R709) 0~3 3 0:0.56 1:0.68 2:0.79 3:0.86 TA1276AN

67 GPH709 (G-Y) Phase (ITU-R709) 0~3 2 0:236deg 1:240deg 2:244deg 3:253deg TA1276AN

68 GBG709 (G-Y) / (B-Y) Gain (ITU-R709) 0~3 0 0:0.30 1:0.34 2:0.40 3:0.45 TA1276AN

69 OSDACL OSD-ACL (OS-ACL) 0~1 1 0:On 1:Off TA1276AN

70 RGBACL RGB-ACL (TX-ACL) 0~1 0 0:Gain1/2 2:Normal TA1276AN

71 SVM-PH VSM PHASE 0~3 3 0:-40ns 1:-20ns 2:0ns 3:+20ns TA1276AN

72 PIPVOL PinP Volume

73 APC-NT APACON PEAK f0 (NTSC) 0~7 7 0:Off 1:4MHz 2:3.3MHz 4:2.5MHz TA1276AN

74 APC-SD APACON PEAK f0 (SDTV) 0~7 6 5:Off 6:13MHz 7:10MHz 8:8MHz TA1276AN

75 APC-HD APACON PEAK f0 (HDTV) 0~7 5 TA1276AN

76 SVMLMT Velocity Modulation Limit 0~1 0 0:Parabola Modulation OFF 1:On TA1276AN

77 DCR-PO D.C. Restoration Point 0~7 0 0:0% to 7:42% TA1276AN

78 DCR-RA D.C. Restoration Rate 0~7 0 0:100% to 7:130% TA1276AN

79 DCR-LI D.C. Restoration Limit 0~3 0 0:100% 1:87% 2:73% 3:60% TA1276AN

80 BSP Black Stretch Start Point 0~7 2 0:22IRE to 7.56IRE TA1276AN

81 ABSP APL to Black Stretch Start Point 0~3 1 0:0dB to 3:1.5dB TA1276AN

82 BSP-T Black Stretch Start Point (Theater) 0~7 0 0:22IRE to 7.56IRE TA1276AN

83 ABSP-T APL to Black Stretch Start Point (Theater) 0~3 0 0:0dB to 3:1.5dB TA1276AN

84 YGM-PO Y-Gamma Point 0~1 0 0:100IRE 1:95IRE TA1276AN

85 STRCNT

86 STRCSD

87 STRCHD

88 RGB-GM RGB-Gamma 0~1 1 0:OFF 1:ON TA1276AN

89 BLC Black Level Automatic Correction (B.L.C.) 0~1 1 0:OFF 1:ON TA1276AN

90 BSG Black Stretch Gain (B.S.G.) 0~1 1 0:ON 1:OFF TA1276AN



55/112


No.OSD


ADJ.

RANGE

INIT.


CONTROLLED

DEVICE

91 BDL Black Detection Level (B.D.L.) 0~1 1 0:3IRE to 1:0IRE TA1276AN

92 DADV Dynamic ABL Detection Voltage 0~7 0 0:MIN 7:MAX TA1276AN

93 DAS Dynamic ABL Sensitivity 0~7 0 0:MIN 7:MAX TA1276AN

94 ABLV ABL Detection Voltage 0~7 0 0:MIN 7:MAX TA1276AN

95 ABLS ABL Sensitivity 0~7 0 0:MIN 7:MAX TA1276AN

96 ABLV-T ABL Detection Voltage (Theater) 0~7 0 0:MIN 7:MAX TA1276AN

97 ABLS-T ABL Sensitivity (Theater) 0~7 0 0:MIN 7:MAX TA1276AN

98 TINT-P Tint (PinP) 0~255 160 PinP Unit

99 CLR-P Color (PinP) 0~255 121 PinP Unit

100 TNT-NT Tint (Main Picture) NTSC 0~127 56 TA1270AF

101 CNT-NT Contrast (Main Picture) NTSC 0~31 27 TA1270AF

102 CLR-NT Color (Main Picture) NTSC 0~31 12 TA1270AF

103 CCD-D CCD Data Slice Line (00E0H) 0~255 17

104 CCD-S CCD Start Bit Position (00E1H) 0~255 210

105 CCD-W CCD Window Position (00E2) 0~255 41

106 CCD-C CCD Clock Line Counter (00E6H) 0~255 5107 CCD-SD CCD Start Bit Position (00E7H) 0~255 1

108 CCD-CD CCD Clock Line Detection (00E9H) 0~255 108

109 YNR

110 YOUTGM

111 ----- Don't Care

112 RESET Initial Set

113 ----- Don't Care

114 HFV H. F/V (Full) 0~255 243 uPc1885

115 VPOS-F V. Position (Full) 0~127 63 uPc1885

116 VMAX-F V. Output Max. Size (Full) 0~31 18 uPc1885

117 VSM-GA VSM GAIN 0~3 0 0:0dB 1:-6dB 2:-9dB 3:Off TA1276AN



56/112

DP-85 SERIES CHASSIS MAGNETS, SCREEN CONTROLS and FOCUS BLOCK ASSEMBLY

DP-85 MAGNETS

Adjustment Points

RED CRT GREEN CRT BLUE CRT

21 3

4

5

6

4

4

5

5

FRONT


57/112

PRESET EACH ADJUSTMENT

VR TO CONDITION AS

SHOWN:

A) Before Pre Heat Run.

1) Red and Green Drive VR on

the CRT PWB. (Not on Blue

CRT ) .

Pre set

between the

12 o c l o ckand 2 o c lo ck

pos i t ion.

2) SCREEN VR ON FOCUS

PACK.

Pre Set fu l ly counter

c l o ckw i s e .

3) Focus VR on focus pack

Pre Set fu l ly c lockwise.

PRE HEA T RU N CO NDITION DP-85 Series Chassis.

12~2

DRIVE VR

SCREEN VRFOCUS VR

R G B

Screen VR

Focus VR


58/112

ADJUSTMENT PR EPARATION:

A) Pre Heat Run should be

f in ished.

ADJUSTMENT PR OC EDU RE :

1) Go to I2 C ADJ . Mode . (Wi th

power ON , press th e TV/

SAT and the CURSOR

DOWN [q]button. The

Service Menu is displayed.)

2) Choose SER VICE i t em [1]

o f I 2C ADJ . Mode . (Select

CURSOR RIGHT [u]and

the Vertical will collapses).

3) Ad jus t any Sc reen VR.

Screen VR shou ld be turned

clockwise gradual ly unt i l

that part icular color is

barely v is ible.4) Repeat fo r the o ther two

co lors .

FOCUS ADJUSTMENT:

1 ) Sho rt t he 2pi n sub-

miniature connector on the

C R T P W B ( TS) , to remove

any co lor not being

adjus ted and adjus t one

co lor at a t ime. (The

adjustment order of R, G

and B is just an example.)

2 ) Ad ju s t t he Fo cus VR f o r

Red unt i l max imum Focus i s

ach ieved .

3 ) Repeat f o r B lue and Green.

4 ) To Ret u rn t o Se r vi ce Menu ,

p res s the CURSOR RIGHT

[u] key on remote.

CUT OFF and FOCU S ADJ USTM ENT DP-85 CH ASSIS

R G B

Screen VR

Focus VR

Screen VRs

F VR


59/112

DP-85 CHASSIS

DCU CROSS-HATCH PHASE SETTING ADJUSTM ENT PROCEDURE

Adjustment Preparation:

1 ) Cu t Of f adju s tmen t s hou l d

be f in ished.

2 ) V i deo Cont r ol : B ri gh tness

90%, Cont ras t Max .

Adjustmen t Procedure:

1 ) R e ce i ve a n y NT SC s ig na l.

2 ) S c re en F or m at is FULL

3 ) P re s s a nd H ol d th e

SERVICE ONLY sw i t ch on

the def l ec t i on PW B.

4 ) P re ss t he ANT key on the

Remote, then press the

EXIT key. (This i s the

Phase adjus tment mode) .

5 ) Ad ju s t da ta v a lue u si ng t he

keys ind icated in the chart ,

unt i l the data matc hes the

values ind icated in the

chart .

Exiting Adjustment Mode:

6) Press Help key on remote

cont ro l .

7) Press SWAP key TWICE to

s tore the informat ion.

8 ) W he n Gr ee n do ts ar e

d isp layed, press the 8 key

on remote.

9) Pre ss the SERVICE ONLY

swi tch to return to normal

mode.

SMOOTH Mode Adjustment

Mode:

10) Change the D i sp lay Fo rmat

to SMOOTH/WIDE Mode.

11 ) Repeat st eps 3 th rough 9

for the SMOOTH/WIDE

mode.

PHASE MODE (FULL and SMOOTH/WIDE)Display Format

ADJUST USING Address Data Value


60/112

DP-85 CHASSIS

HORIZONTAL P OSITION COA RSE ADJ UST MENT PROCEDURE


1 ) Cu t O f f ad ju stmen t

should be f in ished.

2) V ideo Cont ro l : Br ight -

ness 90 %, Cont r a s t

M a x .

Adjustment Procedure

NORMAL MODE:

1 ) R ec e iv e a n y N T S C

cross hair s ignal.

2 ) S c reen Fo rma t i s NOR-

M A L

3 ) P re ss t he SERVICE

ONLY sw i t ch on the

def lec t ion PWB and

disp lay the Dig i ta l Con-

vergence Crosshatch

pattern.

4 ) Mark t he cen te r o f t he

Dig ita l Convergen ce

Crosshatch Pat te rnwi t h f inger and press

the SERVICE ONLY

i t h t t t

of the Dig i ta l Cross-

hatch pattern noted in

step {4}.

6 ) Wr it e dow n t he dat a

value.

7 ) E xi t fr om t he I2C

M e n u .

SMOOTH/WIDE Mode

Adjustment:

1 ) R e ce i ve an y N T S C

cros shair s ignal.

2 ) S c r een F ormat i s

SMOOTH.

3 ) P re ss t he SERVICE

ONLY sw i t ch on the

def lec t ion PWB and

disp lay the Dig i ta l Con-

vergence Crosshatch

pattern.

4 ) Mark t he cen te r o f t he

Dig ita l Convergenc eCrosshatch Pat te rn

wi t h f inger and press

th SERVICE ONLY

5) En te r the I2CBus al ign-

ment menu and se lec t

Item [9] HPOS-Sand

adjust the data to the

same va lue as the data

value entered for the

NORMALmode S tep{6} .

6 ) P r es s t he MENUbut ton

on remote to e x i t ser-

v i ce menu mode.


61/112

DP-85 CHASSIS

RAST ER TILT (Deflection Yoke) ADJ US TM EN T PROC EDURE


1 ) The se t c an f a ce any

direct ion.

2 ) Re ce i ve t he C r o s s-

Hatch S igna l

3) VIDEO CONTROLS:

Factory Preset .

4) SCREEN FORMA T:

shou ld be FULL mode.

5 ) The l en s f o cu s s hou l d

have been coarse ad-

justed.

6 ) The e l e c tr i cal f ocus

shou ld have been

coarse adjusted.

7 ) The D igi t al Conve r-

gence R A M shou ld be

cleared.

(Turn power off, p ress

and h old the SERVICE

ONLY switch, then

pre ss th e POWER bu t -ton).

The Serv i ce On ly

i t h i th D

Adjustment Procedure :

GREEN:

1 ) Ap p l y c ove r s t o the

RED and BLUE l enses

or shor t the 2P Sub

Mi n i connector [TS] on

each CRT P WB to p ro-

duce on ly GREEN .

2 ) T ur n t he Greende f lec-

t ion yoke and adjust

the TILT unti l the

green is leve l . [ +/-

2mm tolerance]. See

diagram.

RED:

1 ) Remove cove r f rom

REDC RT and a l ign

RED w i th GREEN.

2) [+/- 1mm tolerance

when compared to

Green]

BLUE:

1 ) Remove cove r f rom

BLUEand cover the

RED CRT. A l i gn BLUE

w i th GREEN.

2) [+/- 1mm tolerance

when compared to

Green]

3) R E MO V E A LL C O V -

ERS .

4 ) Tu rn t he powe r o ff .


62/112

BEAM ALIGNMENT for DP-85 CHASSIS

(WARNING: Remove all rings, watches and jewelry to avoid shock.)

Preparation for adjustment:

1 ) Ad jus t a t lea s t 3 0 m inu t es

af ter turn ing on pow er

sw i t ch .

2 ) Ras ter inc l i nat ion , center-

ing, horizontal and vert ical

ampl i tudes and opt ica l fo -

cus adjus tment should be

comp le ted .

3 ) B ri gh tn e ss : 9 0 %

Cont ras t Max .

4 ) Rece iv e c r o ss ha t ch s i gna l s,

or dot pattern

RA STE R TILT ad jus tment


5 ) SCREEN FORMAT s hou l d

be FULL mode.

Adjustment procedure:

1) Green (G) tube beam a l i gn-

ment adjus tment:

Short -c i rcu i t 2P subminia-

ture connector p lug p ins o f

Red (R) and Blue (B) on the

CRT boards and pro ject

only Green (G).

2 ) Pu t G reen (G ) tube beam

al ignment magnet to the

cance l s t a te as shown in

Figure 1 .

4 ) Turn Green (G) s t a t i c f o cus

VR c l o ckwise a l l the way .

5 ) Tu rn two Beam al i gnmen t

magnet in any des i red d i-

rect ion and move cross

hatch center to pos i t ion

found in s tep (3) .

(See Figure 2 below ).

6) I f image posi t i on does no t

shi f t when Green s tat ic fo -

cus VR is turned, adjus t-

ment comp le te .

7 ) If i mag e po si ti on d o es

move, repeat s teps [2]

through [6].

8 ) C o nd u ct b e a m al ig nm en t

for Red and Blue in the

s ame way .

9 ) R ed ( R ) f oc u s o n f oc u s

pack .

10 ) B lue (B) fo cus on fo cus

pack .

11 ) Upon comp le t ion of ad jus t -

ment , p lace a smal l

amount o f whi te paint on

the beam al ignment mag-

nets , to assure they don t

mov e. (If avai lable).

2 ) The Yoke T i l t , centering ,

horizontal/vert ical ampl itude

and opt ica l focus adjus t -

ment s shou ld have been

comp le ted .

3 ) B r igh tness : 9 0%, Cont r as t :

Max . .

4 ) I nput a NTSC DOT s i gna l .

Adjustments procedure:

1 ) G reen CRT beam shape ad -

just ment .

2 ) Sho r t -c ir cu it 2P sub-m in i

connectors on Red and Blue

CR T PWB to p ro jec t on ly

the Green beam.

3 ) Tu rn t he g r een s t at i c f ocus

VR fu l l y c lockw i se .

4 ) Make t he dot a t the s cr een

center a t rue c i rc le as

s hown i n Figure 2 on page

01-19, us ing the 4-Po le

magnet shown in Figure 2

bellow.

5 ) A l s o ad ju s t t he Red and

B lue CRT beam shapes ac-

cord ing to the s teps (1) to

(3).

6 ) A f t e r t he ad jus tmen t is


63/112

DP-85 CHASSIS CENTERING MAGNET vs. BEAM FORM MAGNET

NOTE:

The Centering Magnet and Beam Form and Beam Alignment magnets are shown on the

right to avoid confusion when adjusting.

Figure 1 shows the Centering magnet. This magnet is normally made of metal and is

located up against the back side of the yoke assembly.

(Not down on the neck of the CRT)

Figure 2 shows the Beam Form and Alignment magnet. This magnet is normally made of

pl as ti c and is loca ted close to the CRT PWB on the nec k of th e CRT.

PICTURE TUBE SIDE

4 POLE BEAM SHAPE

ADJUSTMENTTABS

BEAM FORM & ALIGNMENT MAGNET

CENTERING MAGNET

Figure 1


64/112

RED, GREEN and BLUE CENTERING FOR THE DP-85 CH AS SIS

Centering adjustment using theCentering Magnets.

1) Display a Cross-Hair signal from

an external generator.

2) Contrast: Maximum Brightness:

Center

3) The focus adjustment should have

been completed.4) The electrical focus should have

been adjusted.

5) Yoke Tilt should have been

completed.

6) The convergence DCU RA M

should have been CL E A R E D .

(With Power OFF, press andhold the Service Switch down,

then press power. When pictureappears, press the ServiceSwitch again to bring up theDCU Crosshatch.)

Adjustment procedure:1) Select the Green adjustment

mode,Recallon the remote

control. See Digital

Convergence adjustmentprocedure.

2) Apply the Digital convergence

overlay.

3) Press theMenubutton on the

remote to turn off Red and Blue.

4) Adjust the centering magnets for

G on the back side of theDeflection Yoke and align the

center of the G Crosshatch to the

center of the overlay.

5) Select Red adjustment Mode,

0 on the remote control.

6) Adjust the R centering magnet

and align the center of R with the

left centering offset mark on the

overlay.7) Select Blue adjustment Mode,

Input on the remote control.

8) Adjust the B centering magnet

and align the center of B with the

Right centering offset mark on

the overlay.

Offset Measurements.

The actual measurements for Red

and Blue offset are as follows:

Red is aligned 1 0 mm left of center

Blue is aligned 3 0 mm right of

center.

Geometric


65/112

HORIZONTAL BL ANKING PHASE AD JUST MEN T D P-85 CHA SSIS

Th i s ad j u s tmen t i s o n l y n e ce s -

s a ry wh e n t h e 2H v i d e o PWB

is repa i red o r rep la ced .

Adjustment Preparation.

1 ) V IDEO con tr o l : F ac to r y

Preset .

2 ) Beam Form adj . Compl e te .

3 ) Rece i ve any NTSC s i gna l ,

resolution chart would be

best.

Adjustment procedure:

1) Go to I2 C Serv ice Adj .

mode . (Press the TV/SAT

and Channel Down button

together to display Service

Adj . Mo de .)

2 ) C h oo se i t em [7] (HSIZE-F)

w i th the remote up/down

keys , and NOTE the current

data value.Reduce to mini -

m um .

3 ) D i sp l ay o n l y G reen by

short ing the sub mini 2p in

connecto r on the Red and

B l ue CRT PWB.

4 ) S e le c t i t em [3] (HBLKPH)


keys .

5) Adjust unt i l l2 is equal w i th

l1. (See figure below).

6 ) C h oo se it e m[7](HSIZE-F)

wi th remote up/down ke ys .

7 ) R e tu rn i tem [7] data va lue

with the one noted in s tep

(2) o f Adjus tment Proce-

dure.

FULL MODE NTSC

Note: Only this side moves with adjustment.


66/112

HORIZONTAL & V ERTICAL SIZE ADJUS TME NT PROCEDURE DP-85 C HASSIS

VERTIC AL SIZE:

(Display Mode FULL or

SM OO TH/WIDE as Depicted)

1) Insta ll t he cor rec t Over lay

dependant upon the Dis -

p lay Mod e being adjus ted.

2 ) I nput any NTSC S i gna l.

3 ) D ig it al Co nv er gen ce R A M

should be c leared. With

Power Of f , press and ho ld

the Service Only Switchon

the Def l ec ti on PW B, then

press Power. (See Page 0 8-

25) .

4 ) P roj e ct o nl y the Green

raster.

5 ) P re ss t he EXITbut ton on

remote cont ro l 5 t imes to

exi t DCAM and acc es s

turner v ideo.

6) En ter I2C Service Mode and

choos e Item [8] (VSIZ-F)

FOR SMOOTH/WIDE MODE

[ Smo o t h /W i d e s e l e c t It em

[1 3 ] (VS IZ -S )]

6 ) Ad ju s t dat a v a l ue u s ing l ef t

and r ight cursor on remote

cont ro l unt i l ras ter matches

the top and bot tom mark

on the over lay .

7 ) P re ss t he MENUkey on

remote cont ro l to ex i t Ser-

v i ce Menu.

HORIZONTAL SIZE:

(Display Mode FULL or

SM OO TH/WIDE as Depicted)

1) Enter I2C Service Mode and

choose Item [7] (HSIZ-F)

FOR SMOOTH/WIDE MODE

Smoo t h /W i d e s e l e c t It em

[1 2 ] (HS IZ -S )

2 ) Ad ju s t dat a v a lue u s ing l ef t

and r ight cursor unt i l the

5th l ine f rom center

matches the l ines ind icated

on the lef t and r ight hand

s ide o f the over lay .

3 ) P re ss t he MENU key on

remote cont ro l to ex i t Ser-

v i ce Menu.

NOTE: Ce n t e r i n g m a g n e t ma y

be mov ed t o f a c i l i t a t e .

D i s t a n c e i s im p o r t a n t , n o t c e n -

te r i ng .

NOTE : T h e r e a r e tw o d i f f e r en t

o ve r l a y s u sed du r i n g t h i s p ro c -

ess .

Alternate Method:

Ad ju st Ho ri zo nt al an d Ve rt ical

Size unti l the size matches the

chart below.

VERTICAL Full Mode Smooth Mode HORIZONTAL Full Mode Smooth Mode

Size of ScreenDistance of l Distance of l Size of Screen Distance of l Distance of l


67/112


68/112

SIDE PIN DISTORTION ADJ UST ME NT DP-85 CH AS SIS

Adjustment Preparation.

1 ) V IDEO con t ro l : Fac t o ry

Preset .

2 ) SIDE PIN ad justment shou ld

be f in ished. .

3 ) D ig i ta l C on v er g en c e R A M

should be c leared. With

Power Of f , press and ho ld

the Service Only Switchon

the Def l ec ti on PWB , then

press Power. (See Page 0 8-

25) .

4 ) D i sp l ay o n l y Green by s e -

lect ing Green adj . Mode,

US ER, and then press ing

the MENU key to turn o f f

Red and Blue.

5 ) P re ss t he EXITbut ton on

remote cont ro l 5 t imes to

ex it DCAM and ac ces s

turner v ideo.

Adjustment procedure FULL

MODE:

1) Rece ive any NTSC s igna l

and screen format is set to

FULL mode.



and Channel Down butt on


Adj . Mo de .)

3 ) C h oo se i te m [5](SPIN-F)


keys .

4 ) Ad jus t Si de Pi n a s s hown .

5 ) P re ss t he MENUkey on

remote to ex i t Serv ice Ad-

just ment Mode.

Adjustmen t procedure

SMOOTH MODE:

1) Rece ive any NTS C s igna l

and screen format is set to

SM O O T H m o d e .



and Channel Down butt on


Adj . Mo de. )

3 ) C h oo se i te m [10](SPIN-S)


keys .

4 ) Ad jus t Si de Pi n a s s hown .

5 ) E x it Se r v ice Mode by pr e s s-

ing the ME NU key .

6 ) P o w e r of f t o e xi t D C U

cleared mode.


69/112

BEAM FORM ADJU STME NT for the DP-85 C HASSIS

BEAM FORM

Preparation for adjustment

1) IMPORTANT : Sc re e n f o r -

ma t s h o u l d b e NORMAL .

2 ) The beam a l ignmen t s hou l d

have been completed.

2 ) The Yoke T i l t , centering ,

hor izonta l/vert ica l ampl i tude

and opt ica l focus adjus t -

ment s shou ld have been

comp le ted .

3 ) B r igh tness : 9 0%, Cont r as t :

Max . .

4 ) I nput a NTSC DOT s i gna l .

Adjustmen ts procedu re:

1 ) G reen CRT beam shape ad-

just ment .

2 ) Sho r t -c i rcu i t 2P sub-m in i

connecto rs on Red and B lue

CR T PWB to p ro jec t on ly

the Green beam.

3 ) Tu rn the g r een s t a ti c f o cus

VR fu l l y c lockw i se .

4 ) Mak e t he dot a t the sc r een

center a t rue c i rc le as

s hown i n Figure 2, us ing

the 4-Po le magnet shown in

Figure 1 .

5 ) A l s o ad jus t the Red and

B lue CRT beam shapes ac-

cord ing to the s teps (1) to

(3).

6 ) A f t e r t he ad jus tmen t is

completed, return R, G and

B s tat ic VRs to the Best Fo-

cus po int .

TRUE C IRCLE

PICTURE TUBE SIDE

ADJUSTMENTTABS

BEAM ALIGNMENT AND FORM MAGNETS


70/112

OPTICAL S YSTEM ADJUST MENTS DP-85 CHA SSIS

Focus adjustment

DP-8X Series Chassis:

Preparation for adjustment

1 ) Rece iv e t he C ros s-ha t ch

pattern s ignal.

2 ) The elec t r i ca l fo cus ad jus t-

ment shou ld have been

comp le ted .

3 ) Def l ec ti on Yoke ti l t shou ld

have been adjus ted.

4 ) B r ig ht n es s = 5 0 %

Con t r a st = 60 % t o 70%

Adjustment procedure

4 ) Shor t th e 2 pi n sub-

miniature connector on the

CR T P .W.B. TS , t o p roduce

only the co lor being ad-

justed and adjust one at a

t ime. (The adjus tment order

o f R, G and B is jus t an ex-

ample.)

2) (See Fig. 1) Loosen the f ix -

ing screw on the lens as-

sembly so that the lens cy l -

inder can be turned. (Be

carefu l not to loosen the

screw too much, as th i s

may cause movement o f

the lens cy l inder when

t ightening.) 3 ) Ro ta t e t he cy l i nde r back

and forth to obta in the best

focus po int , whi le observ-

ing the Cross-Hatch.

(Observe the center o f the

screen) .

Hint: Located just below

the screen are the two cen-

ter speakers. These speak-

ers are mounted on two

wooden panels. Remove

the panels to allow access

to the focus rings on the

Lenses.

4) A f te r comp le t ing op t i ca l fo -

cus , t ighten the f ix ing

screw s fo r each l ens .

5 ) When ad ju st i ng t he Green

Opt ica l focus , be very car e-

fu l . Green is the most domi-

nant o f the co lor guns and

any error wi l l be eas i ly

seen.

6 ) Repeat E lec t ri ca l Focus i f

necessary .

FIXING SCREW


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DP-85 CHASSIS

BLUE DEFOCUS ADJUS TMEN T PROCEDURE


1 ) V i deo Con tr o l: B r igh tness

90%, Cont ras t Max .

2 ) D y na m ic F oc u s ch e ck


3 ) S C R EE N F OR M A T sh ou ld

be FULL mode.

Adjustment Procedure

NORMAL MODE:

1 ) R e ce i ve an y N T SC c r os s-

hatch s ignal .

2 ) S c re en F or m at is FULL

3 ) T ur n t he B FOCUS VR ful ly

c l o ckw i s e .

4 ) A d j us t BL UE d e f oc u s a c -

cord ing to the fo l lowing

speci f i cat ions .

1mm on each side equaling

2mm tot a l .

See figure.

Blue Defocus Sticking Out

Center of Blue crosshatch line

R G B

R G B

Screen VR

Focus VR

FOCUS PACK

Blue Focus VR on

FOCUS PACK


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AD J USTING THE RED, GREEN AND BLUE WHITE BALANCE AND TRACKING

for DP-85 Chassis

No te : Wh en Ve r t i c a l i s co l l apsed , make ad j us tmen t s qu i c k l y because the image can bu r n on the CRTs phospho r s .

White balance adjustment

1) Screen adjustment

2) High brightness white bal-

ance

3) Low brightness white bal-

ance

Adjustment VRs:Screen adjustment VRs on Focus

Block

Drive adjustment VRs on CRT P.

W.B.

Red Drive = R829R

Green Drive = R879GPreparation for adjustment

1 ) S t a rt ad ju stmen t 20 m in -

utes or more af ter thepower is turned on.

2 ) Tu rn t he b r igh tness and

black level OSD to mi ni -

mum by remote cont ro l .

3 ) Rece ive a tuner s igna l , ( any

channel , B/W would be

best).

4 ) Se t t he d r i v e adju stmen t

V R s (Red R8 2 9 R and GreenR8 79 G) to the i r mechan i ca l

centers .

Numbe r [1] of I2 C A D J .

Mode . (Select ON by Cur-

sor Right and the Vertical

will collapses).

3 ) G radua ll y t u rn t he s c r een

adjus tmen t VR s ( red, green,

b lue) c lockwise and set

them where the red, green

and b lue l ines are equal and

just barely vi s ible.

4 ) Re t urn Se r vi ce i tem on I2 C

A D J to Of f by Cursor Right.

Numbe r [1] .

Ad just the Sub Br ightness

Numbe r [2]SUBBRT us ing

I2 C Bus a l ignment proce-

dure so only the s l ightes t

whi te port ions o f the ras ter

can be seen.

Co n t i n u e d o n Ne x t P ag e

5 ) Input a g ray s cal e si gna l

Projection Front View

R G B

R G B

Screen VR

Focus VR

FOCUS PACK

RED CRT GREEN CRT BLUE CRT

Screen VRs

Focus VRs


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AD J USTING THE RED, GREEN AND BLUE WHITE BALANCE AND TRACKING

for DP-85 Chassis

No te : Wh en Ve r t i c a l i s co l l apsed , make ad j us tmen t s qu i c k l y because the image can bu r n on th e CRTs phosp ho r s .

into any V ideo input and

select that input us ing the

INPUT but ton on the re-

mote or f ront cont ro l

panel .

6 ) T ur n th e Br i gh tn es s a nd

Cont ras t OSD a l l t he wayup.

7 ) M ak e th e wh i te s a s wh i te

as poss ib le us ing the dr ive

adjus tment VRs ( red,

green).

8 ) S e t t he Br ig h tn e ss and

Contras t to minimum.

9 ) A d ju st th e l o w b r ig h tn e ss

areas to b lack and whi te,

us ing screen adjus tmentV R s (r ed, gr een, blue).

10 ) Check the h igh b r ightness

whi tes again. I f not OK,

repeat s teps 6 through 9.

11) Press the MENU key onremote to Ex i t Serv ice

M enu .

SUB BRIGHTNESS ADJUSTMENT FOR THE DP-85 CH AS SIS

ALTERNATE METHOD

W Y CY G MG R BL

A7 A6 A5 A4 A3 A2 A1

75%

B

D

Q I W 100% BLK

The background is set to black.perform the adjustment without

observing the boundary parts.

The background is set to

lighter black.


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DP-85 SERIES CHASSIS

HORIZONTAL POSITION FINE ADJUSTMENT PROCEDURE


1 ) V i deo Con tr o l: B r igh tness

90%, C

Dp 85 Train Pack

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