SERVICE manual for SONY MHC_GT222

SERVICE MANUAL

Sony CorporationAudio&Video Business GroupPublished by Sony Techno Create Corporation

HCD-GT111/GT222/GT444/GT555

SPECIFICATIONS

COMPACT DISC DECK RECEIVER9-889-112-032008G05-1 2008.07

AEP ModelHCD-GT111/GT222/GT444

UK ModelHCD-GT444

E ModelRussian Model


Ver. 1.2 2008.07

HCD-GT111 is the amplifi er, USB, CD player, tape deck and tuner section in MHC-GT111/GT111BP.

HCD-GT222 is the amplifi er, USB, CD player, tape deck and tuner section in MHC-GT222.

HCD-GT444 is the amplifi er, USB, CD player, tape deck and tuner section in MHC-GT444.

HCD-GT555 is the amplifi er, USB, CD player, tape deck and tuner section in MHC-GT555. Photo: HCD-GT555

CDSection

Model Name Using Similar Mechanism NEWMechanism Type CDM88A-K6BD93-WODOptical Pick-up Block Name KSM-213DCP

Tape deck Section

Model Name Using Similar Mechanism HCD-EC55/EC77Tape Transport Mechanism Type TCM-J1 or CS-21SC-900TP

Amplifier sectionHCD-GT555The following are measured at AC 120, 127,220, 230 240 V 50/60 HzFront speaker

Power output (rated): 110 W + 110 W(at 6 , 1 kHz, 1% THD)RMS output power (reference):200W + 200 W (per channel at 6 ,1 kHz, 10% THD)

SubwooferRMS output power (reference): 190 W(at 6 , 100 Hz, 10% THD)

HCD-GT444The following are measured at AC 120, 127,220, 230 240 V 50/60 HzFront speaker

Power output (rated): 90 W + 90 W(at 6 , 1 kHz, 1% THD)RMS output power (reference):150 W + 150 W (per channel at 6 ,1 kHz, 10% THD)

SubwooferRMS output power (reference): 150 W(at 6 , 100 Hz, 10% THD)

HCD-GT222The following are measured at AC 120, 127,220, 230 240V 50/60 Hz

Power output (rated): 110 W + 110 W(at 6 , 1 kHz, 1% THD)RMS output power (reference):200 W + 200 W (per channel at 6 ,1 kHz, 10% THD)

HCD-GT111The following are measured at AC 120, 127,220, 230 240V 50/60 Hz

Power output (rated): 60 W + 60 W(at 6 , 1 kHz, 1% THD)

RMS output power (reference):100 W + 100 W (per channel at 6 ,1 kHz, 10% THD)

InputsAUDIO INPUT L/R : voltage250 mV, impedance 47 kilohmsMIC: sensitivity 1 mV, impedance10 kilohms

(USB) port: Type AOutputsPHONES: accepts headphones of 8 ormoreFRONT SPEAKER: accepts impedance of6 SUBWOOFER (HCD-GT555/HCD-GT444 only): acceptsimpedance of 6 USB sectionSupported bit rate

MP3 (MPEG 1 Audio Layer-3):32 320 kbps, VBRWMA: 32 192 kbps, VBRAAC: 48 320 kbps

Sampling frequenciesMP3 (MPEG 1 Audio Layer-3):32/44.1/48 kHzWMA: 44.1 kHzAAC: 44.1 kHz

Transfer speedFull-Speed

Supported USB deviceMass Storage Class

Maximum current500 mA

CD player sectionSystem: Compact disc and digital audiosystem

Laser Diode PropertiesEmission Duration: ContinuousLaser Output*: Less than 44.6 W* This output is the value measurement

at a distance of 200 mm from theobjective lens surface on the OpticalPick-up Block with 7 mm aperture.

Frequency response: 20 Hz 20 kHzSignal-to-noise ratio: More than 90 dBDynamic range: More than 88 dB

Tape deck sectionRecording system: 4-track 2-channel, stereo

Tuner sectionFM stereo, FM/AM superheterodyne tuner

FM tuner sectionTuning range:

87.5 108.0 MHz (50 kHz step)Antenna: FM lead antennaAntenna terminals: 75 ohms unbalancedIntermediate frequency: 10.7 MHz

AM tuner sectionTuning range

Pan American and Oceanian models:530 1,710 kHz (with 10 kHz tuninginterval)531 1,710 kHz (with 9 kHz tuninginterval)European and Russian models:531 1,602 kHz (with 9 kHz tuninginterval)Other models:530 1,610 kHz (with 10 kHz tuninginterval)531 1,602 kHz (with 9 kHz tuninginterval)

Antenna: AM loop antenna, external antennaterminalIntermediate frequency: 450 kHz

Mexican model: AC 127 V, 60 HzArgentine model: AC 220 V, 50/60 HzOther models: AC 120, 220 or 230 240 V, 50/60 Hz, Adjustable with

voltage selectorPower consumption

HCD-GT555: 216 WHCD-GT444: 286 WHCD-GT222: 163 WHCD-GT111: 150 W

Dimensions (w/h/d) (excl. speakers)Approx. 231 361 437.5 mm(9 1/8 14 1/4 17 1/4 inch)

Mass (excl. speakers)HCD-GT555/GT444/GT222 (Except European model),HCD-ZT4: 10.0 kg (22 lb 1 oz)HCD-GT222 (European model):9.6 kgHCD-GT111: 8.0 kg

Design and specifications are subject tochange without notice.

GeneralPower requirements

European and Russian models:AC 230 V, 50/60 Hz


2

1. SERVICING NOTES ............................................. 3

2. GENERAL .................................................................. 7

3. DISASSEMBLY3-1. Disassembly Flow ........................................................... 93-2. Side-L/R Case ................................................................. 103-3. Top Panel Block .............................................................. 103-4. Tape Mechanism Deck .................................................... 113-5. Front Panel Block ........................................................... 113-6. Back Panel ...................................................................... 123-7. MAIN Board ................................................................... 123-8. CD Mechanism Block ..................................................... 133-9. POWERAMP Board ....................................................... 133-10. Base Unit ......................................................................... 143-11. OP Base Assy (KSM-213D) ........................................... 143-12. Belt (DLM3A) ................................................................ 15

4. TEST MODE ............................................................ 16

5. MECHANICAL ADJUSTMENTS ...................... 20

6. ELECTRICAL ADJUSTMENTS ........................ 21

7. DIAGRAMS7-1. Block Diagram - CD SERVO, USB Section - ................ 237-2. Block Diagram - MAIN Section - ................................... 247-3. Block Diagram - AMP Section - ..................................... 257-4. Block Diagram - PANEL, POWER SUPPLY Section - ........................... 267-5. Schematic Diagram - CD Board (1/2) - .......................... 287-6. Schematic Diagram - CD Board (2/2) - .......................... 297-7. Printed Wiring Board - CD Board - ................................ 307-8. Printed Wiring Board - TC Board - ................................. 317-9. Schematic Diagram - TC Board - ................................... 317-10. Printed Wiring Board - USB Board - .............................. 327-11. Schematic Diagram - USB Board - ................................. 337-12. Printed Wiring Boards - REG Section - .......................... 347-13. Schematic Diagram - REG Section - .............................. 347-14. Printed Wiring Board - MAIN Board - ........................... 357-15. Schematic Diagram - MAIN Board (1/4) - ..................... 367-16. Schematic Diagram - MAIN Board (2/4) - ..................... 37

TABLE OF CONTENTS

SAFETY-RELATED COMPONET WARNING!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

Flexible Circuit Board Repairing Keep the temperature of soldering iron around 270 C during

repairing. Do not touch the soldering iron on the same conductor of the

circuit board (within 3 times). Be careful not to apply force on the conductor when soldering

or unsoldering.

This appliance is classified as a CLASS 1LASER product. Thismarking is located on the rear exterior.

CAUTIONUse of controls or adjustments or performance of procedures other than those specifi ed herein may result in hazardous radiation exposure.

7-17. Schematic Diagram - MAIN Board (3/4) - ..................... 387-18. Schematic Diagram - MAIN Board (4/4) - ..................... 397-19. Printed Wiring Boards - JACK Section - ........................ 407-20. Schematic Diagram - JACK Section - ............................ 407-21. Printed Wiring Board - POWERAMP Board - ............... 417-22. Schematic Diagram - POWERAMP Board (1/2) - ......... 427-23. Schematic Diagram - POWERAMP Board (2/2) - ......... 437-24. Printed Wiring Board - DISPLAY Board - ..................... 447-25. Schematic Diagram - DISPLAY Board - ........................ 457-26. Printed Wiring Boards - PANEL Section - ..................... 467-27. Schematic Diagram - PANEL Section - .......................... 477-28. Printed Wiring Board - TRANS1 Board (GT111: 120V AC area in E, 240V AC

area in E, Chilean and Peruvian models) - ...................... 487-29. Schematic Diagram - TRANS1 Board (GT111: 120V AC area in E, 240V AC area in E, Chilean and Peruvian models) - ...................................... 497-30. Printed Wiring Board - TRANS2 Board (GT222/GT444/GT555) - ............................................... 507-31. Schematic Diagram - TRANS2 Board (GT222/GT444/GT555) - ............................................... 517-32. Printed Wiring Board - TRANSX Board (GT111: AEP, Russian and Argentina models) - ............. 527-33. Schematic Diagram - TRANSX Board (GT111: AEP, Russian and Argentina models) - ............. 53

8. EXPLODED VIEWS8-1. Case Section .................................................................... 638-2. Loading Panel Section .................................................... 648-3. DISPLAY Board Section ................................................ 658-4. Front Panel Section ......................................................... 668-5. Meter Display Assy ......................................................... 678-6. Top Panel Section ........................................................... 688-7. Back Panel Section ......................................................... 698-8. MAIN Board Section ...................................................... 708-9. Chassis Section ............................................................... 718-10. CD Mechanism Section (CDM88A-K6BD93-WOD) .... 72

9. ELECTRICAL PARTS LIST .............................. 73


3

SECTION 1SERVICING NOTES

Model Part No.GT555: E2 3-287-080-0[]GT444: E2 3-287-080-1[]GT222: E2 3-287-080-2[]GT111: E2 3-287-080-3[]GT555: MX 3-287-081-0[]GT444: MX 3-287-081-1[]GT222: MX 3-287-081-2[]GT111: E3 3-287-082-0[]GT555: AR 3-287-085-0[]GT444: AR 3-287-085-1[]GT222: AR 3-287-085-2[]GT111: AR 3-287-085-3[]GT555: E51 3-287-086-0[]GT444: E51 3-287-086-1[]GT222: E51 3-287-086-2[]GT111: E51 3-287-086-3[]GT111: AEP 3-287-088-0[]GT222: AEP 3-287-088-1[]GT444: AEP, UK 3-287-088-2[]GT111: RU 3-287-090-0[]GT222: RU 3-287-090-1[]GT444: RU 3-287-090-2[]GT555: RU 3-287-090-3[]

MODEL IDENTIFICATION Back Panel NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT

The laser diode in the optical pick-up block may suffer electrostat-ic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body.During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts.The fl exible board is easily damaged and should be handled with care.

NOTES ON LASER DIODE EMISSION CHECKThe laser beam on this model is concentrated so as to be focused on the disc refl ective surface by the objective lens in the optical pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens.

UNLEADED SOLDERBoards requiring use of unleaded solder are printed with the lead-free mark (LF) indicating the solder contains no lead.(Caution: Some printed circuit boards may not come printed with

the lead free mark due to their particular size)

: LEAD FREE MARKUnleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40 C higher

than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be

applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to

about 350 C.Caution: The printed pattern (copper foil) may peel away if the

heated tip is applied for too long, so be careful! Strong viscosity Unleaded solder is more viscou-s (sticky, less prone to fl ow)

than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc.

Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may

also be added to ordinary solder.

RELEASING THE DISC TRAY LOCKThe disc tray lock function for the antitheft of an demonstration disc in the store is equipped.

Releasing Procedure:1. Press [I/1] button to turn the power on.2. Press the [CD] button to select CD function.3. While pressing the [x] button, press the [Z] button for more 5

seconds).4. The message UNLOCKED is displayed and the disc tray is

unlocked.

Note: When LOCKED is displayed, the slot lock is not released by turning power on/off with the [I/1] button.

MODELNUMBELABEL

Abbreviation AR : Argentina model E2 : 120V AC area in E model E3 : 240V AC area in E model E51 : Chilean and Peruvian models MX : Mexican model RU : Russian model


4

HOW TO REMOVE THE KNOB VOLUME

HOW TO OPEN THE TRAY WHEN POWER SWITCH TURN OFF

Pull the tray by the hand.

Turn a gear by a driver till a lever falls down to the position of the figure.

lever

gearhole

knob volume

hole

front panel block(back view)

Push the knob volume by the flat head driver.


5

CAPACITOR DISCHARGE FOR ELECTRIC SHOCK PREVENTION

POWERAMP board

POWERAMP board

C803

C804

In checking the MAIN board, make a capacitor discharge of C803 and C804 for electric shock prevention.

800 /2W

800 /2W

CD MECHANISM BLOCK SERVICE POSITION

CD mechanism block


6

POWERAMP BOARD SERVICE POSITION

CD mechanism block

front panel block

MAIN board

POWERAMP board

TRANS1 board/TRANS2 board/TRANSX board

Tape Deck Name Tape Deck Part No. Belt Part No.

TCM-J1 A-1527-851-A 2-670-389-01 BELT (1)3-214-817-01 BELT (FR)

CS-21SC-900TP 1-797-575-11 2-688-621-01 BELT (R/F)2-688-622-01 BELT (MAIN)

HOW TO DISTINGUISH TAPE MECHANISM DECKTwo kinds of tape mechanism decks installed by this set exist.

Please do the repair exchange after confi rming which tape mechanism deck set of the repair according to how to distinguish the fi gure below.

motor

Metal part: TCM-J1Mold part: CS-21SC-900TP

tape deck


7

SECTION 2GENERAL

This section is extracted from instruction manual.

Guide to parts and controlsThis manual mainly explains operations using the remote, but the same operations can also be performed using the buttons on the unit having the same or similarnames.

UnitFront view

* HCD-GT555 and HCD-GT444 only

Top view

CD

TUNER/BAND

TAPE

AUDIO

USB

XG

XE

XH

XTXBXRMRL

RKRIRHRG

RERT

RBR

*

XK

XI

(on/standby)Press to turn on the system.The STANDBY indicator lights up whenthe system is turned off.

#DISPLAYPress to change the information on thedisplay.

$METER MODEPress to select the preset meter display.

%OPTIONSPress to change the display, USB andMP3 BOOSTER+ settings.

&ERASEPress to erase audio files and folders fromthe connected optional USB device.

'Remote sensor

( +/ (select folder)

Press to select a folder.N.(rewind/fast forward)Press to find a point in a track./9(play/pause)Press to start or pause playback.Y (stop)Press to stop playback.TUNING +/Press to tune in the station you want.

(go back/go forward)Press to select a track or file.)CDPress to select the CD function.TUNER/BANDPress to select the TUNER function.Press to select the FM or AM band.

TAPEPress to select the TAPE function.AUDIOPress to select the AUDIO function.

Press to select the USB function.*HCD-GT555 and HCD-GT444 onlySUBWOOFERPress to turn on and off the subwoofer.The SUBWOOFER indicator lights upwhen the subwoofer is turned on.

+REC TIMERPress to set the Recording Timer.

,RETURNPress to return to the parent folder.Press to exit search mode.

-ENTERPress to enter the settings.

USB

.DISC SKIP/EX-CHANGEPress to select a disc. Press to exchange adisc while playing.

/PHONES jackConnect the headphones.

0AUDIO INPUT L/R jacksConnect to an audio component(Portable audio player, etc.).

1 (USB) indicator

Lights up in red when transferring to theconnected optional USB device or whenerasing audio files or folders.

(USB) portConnect an optional USB device.

2MIC jackConnect an optional microphone.

MIC LEVELTurn to adjust the microphone volume.

3Disc tray

4; OPEN/CLOSEPress to insert or eject a disc.

5REC TOPress to transfer onto the connectedoptional USB device.

6DISC 1 3Press to select a disc. Press to switch to theCD function from other function.

7MASTER VOLUMETurn to adjust the volume.

8OPERATION DIALTurn to select a setting in the OPTIONSmenu.Turn to select a track, file or folder.

9PRESET EQ, GROOVE, SURROUNDPress to select a sound effect.

EQ BANDPress to select the frequency band.

:Display

;Tape deck

XK[ (record)Press to record onto a tape.

# (play)Press to start tape playback.* The # button has a tactile dot. Use the tactile

dot as a reference when operating the system.

N.(rewind/fast forward)Press to rewind/fast forward a tape.USB

Y ; (stop/eject)Press to stop tape playback.Press to insert or eject a tape.

9 (pause)Press to pause tape playback.


8

Remote RM-AMU006 (on/standby)Press to turn on the system.

#CLOCK/TIMER SELECTCLOCK/TIMER SETPress to set the clock and the timers.

$REPEAT/FM MODEPress to listen to a disc, an USB device, asingle track or file repeatedly.Press to select the FM reception mode(monaural or stereo).

RHRGRERT

RB

R

%USBPress to select the USB function.CDPress to select the CD function.

TUNER/BANDPress to select the TUNER function.Press to select the FM or AM band.

FUNCTIONPress to select a function.

&(go back/go forward)Press to select a track or file.

N.(rewind/fast forward)Press to find a point in a track or file.

+/ (tuning)Press to tune in the station you want.

/(play)Press to start playback.

9 (pause)Press to pause playback.Y (stop)Press to stop playback.'ENTERPress to enter the settings.

(DISC SKIPPress to select a disc.

)+/ (select folder)

Press to select a folder.

*VOLUME +/*Press to adjust the volume.* The VOLUME + button has a tactile dot. Use

the tactile dot as a reference when operatingthe system.

+EQPress to select a sound effect.

,CLEARPress to delete the last step from theprogram list.

-TUNER MEMORYPress to preset the radio station.

.PLAY MODE/TUNING MODEPress to select the play mode of anAUDIO CD, MP3 disc or an optionalUSB device.Press to select the tuning mode.

/DISPLAYPress to change the information on thedisplay.

0SLEEPPress to set the Sleep Timer.

Hooking up the system securely

To FM lead antenna To AM loop antenna To subwoofer To front speaker (left) To front speaker (right)

a) The FM 75 COAXIAL jack varies according tomodels.

c) HCD-GT555 and HCD-GT444 only.d) The VOLTAGE SELECTOR varies according to

models.

Getting Started

ANTENNA

DMPORT

SUBWOOFER

FRONT SPEAKER

$&

'

%

"

d)

a)

c)VOLTAGE

SELECTOR

" AntennasFind a location and an orientation thatprovide good reception, and then set upthe antennas.

Keep the antennas away from the speakercords, the power cord and the USB cableto avoid picking up noise.

$ Subwoofer (HCD-GT555 andHCD-GT444 only)Be sure to insert the connector straightinto the terminals.

% Front speakersBe sure to insert the connector straightinto the terminals.

& VOLTAGE SELECTORFor models with a voltage selector, setVOLTAGE SELECTOR to the localpower line voltage.

' PowerConnect the power cord to a wall socket.The demonstration appears in the display.If the plug does not fit the wall socket,detach the supplied plug adaptor (only formodels equipped with an adaptor).

When carrying this systemUse the buttons on the unit for thisoperation.1 Remove all discs to protect the CD

mechanism.

2 Press CD to select the CD function.3 Hold down DISC SKIP/

EX-CHANGE, and press untilSTANDBY appears.

4 After MECHA LOCK appears,unplug the power cord.

Extend the FM leadantenna horizontally

AM loop antenna

SUBWOOFER

Purple

IM PEDANC

E USE6

RL

FRONTSPEAK

ER

White

Speaker padsAttach the supplied speaker pads to thebottom of the front speakers andsubwoofer to prevent slipping.

Front speakers:4 pads for each speakerSubwoofer:4 pads (HCD-GT555 and HCD-GT444only)

To use the remoteSlide and remove the batterycompartment lid, then, insert the twosupplied R6 (size AA) batteries,& sidefirst, matching the polarities shownbelow.

Notes With normal use, the batteries should last for

about six months. Do not mix an old battery with a new one or

mix different types of batteries. If you do not use the remote for a long period

of time, remove the batteries to avoid damagefrom battery leakage and corrosion.

Setting the clockYou cannot set the clock in Power SavingMode.Use the buttons on the remote for thisoperation.

1 Press to turn on the system.2 Press CLOCK/TIMER SET.

If PLAY SET appears on thedisplay, press/CLOCK SET and then pressENTER (RM-AMU006) or(RM-AMU008).

3 Press/repeatedly toset the hour, and then pressENTER.

4 Use the same procedure to set the minutes.The clock settings are lost when youdisconnect the power cord or if apower failure occurs.

To display the clock when thesystem is turned offPress DISPLAY repeatedly until the clockis displayed. The clock is displayed forabout 8 seconds.


9

SECTION 3DISASSEMBLY

This set can be disassembled in the order shown below.

3-1. DISASSEMBLY FLOW

3-2. SIDE L/R CASE (Page 10)

3-3. TOP PANEL BLOCK (Page 10)

3-5. FRONT PANEL BLOCK (Page 11)

3-6. BACK PANEL (Page 12)

3-7. MAIN BOARD (Page 12)

3-9. POWERAMP BOARD (Page 13)

3-11. OP BASE ASSY (KSM-213D) (Page 14)

3-4. TAPE MECHANISM DECK (Page 11)

3-8. CD MECHANISM BLOCK (Page 13)

3-10. BASE UNIT (Page 14)

SET

3-12. BELT (DLM3A) (Page 15)


10

Note: Follow the disassembly procedure in the numerical order given.

3-2. SIDE-L/R CASE

3-3. TOP PANEL BLOCK

four screws (BVTP3 10)

three screws (BVTP3 10)

four screws (case3 TP)

side-L case

side-R case four screws (case3 TP)

screw (BVTP3 10)

top panel block

flexible flat cable (CN450)

two claws


11

connector (CN470)

screw (BVTP3 10)

RT screw (BVTP3 10)

RB harness

RE two harnesses

connector (CN488)

connector (CN903)

flexible flat cable (CNCN403)

screw (BVTP3 10)

RG front panel block two screws (BVTP3 10)

panel loading

screw (BVTP3 10)

Pull the tray by hand.

hole

Turn a gear by a driver till a lever falls down to the position of the figure.

lever

gear

3-5. FRONT PANEL BLOCK

3-4. TAPE MECHANISM DECK

Note: This illustration is seeing top panel block from inside.

two screws (BVTP3 12: AEP, UK, Russian) (BVTP3 8: except AEP, UK, Russian)

(AEP, UK, Russian)

connector (CN501)

top panel block

two screws (BVTP2.6 8)

two screws (BVTP2.6 8) bracket (deck)

TC board

two bracket (PWB)

TC shield board

tape mechanism deck


12

3-6. BACK PANEL

connector (CN690)

power cord connector (CN901)

XT power cordRG DC fan (M102)

RE two screws (BVTP3 12)

RI wiring bstopper

RH screw (BVTP3 10)

RL ferrite core

XB cord bushingX bushing bracket

RM two screws (BVTP3 10)

RT tuner (FM/AM)

flexible flat cable (11core (GT111: AEP/GT222: AEP/ GT444: AEP, UK)/ 9 core (GT111: RU, E2, E3, E51, AR/ GT222: RU, E2, E51, MX, AR/ GT444: RU, E2, E51, MX, AR/ GT555)))

RK Cut the clamp.

two screws (BVTP3 8)

RB screw (BVTP3 10)

screw (BVTP3 10)

screw (BVTP3 10)

five screws (BVTP3 10)

back panel

connector (CN890)

SW JACK board

(GT444/GT555)

3-7. MAIN BOARD


MAIN board

wire (flat type) (13 core) (CN410)

connector (CN907)

connector (CN055)

wire (flat type) (31 core) (CN430)

flexible flat cable (21 core) (CN420)

fan connector (CN110)


13

3-8. CD MECHANISM BLOCK

3-9. POWERAMP BOARD

Note: When installing the CD mechanism section, install two tapes for prevention of noise.


screw (BVTP3 10)


screw (BVTP3 10)

four screws (BVTP3 10)

two saranet cushions

RT CD mechanism block

RB three sheets

wire (flat type) (31 core) (MAIN board: CN430/CD board: CN201)

chassis

wire (flat type) (13 core) (MOTOR board/MAIN board: CN410)


two screws (transistor)

RB two screws (BVTP3 10)

connector (CN903)

RT POWERAMP board

screw (BVTP3 10) two screws

(BVTP3 10)



bracket (fan)

fan (M101)

(GT222/GT444/GT555)

heat sink block


14

3-10. BASE UNIT

CD mechanism block

insulator

insulator

base unit insulator

insulator

two springs (insulator) two screws (PTPWHM2.6)

two screws (PTPWHM2.6)

Bottom view

two springs (insulator)

two polyethylene washers

Remove four solders.

flexible flat cable (16 core) (CD board: CN301/optical pick-up block)

CD board

OP base assy (KSM-213D)

3-11. OP BASE ASSY (KSM-213D)


15

four screws

cover

two belts (DLM3A)

belt

belt

position of belt

3-12. BELT (DLM3A)


16

SECTION 4TEST MODE

PANEL TEST MODEThis mode is used to check the fl uorescent indicator tube, LEDs, keys, [MASTER VOLUME] jog, [OPERATION DIAL] jog, mod-el, destination and software version.Procedure:1. Press [x] button, [METER MODE] button and [DISC 2] but-

ton simultaneously.2. All LEDs and segments in fl uorescent indicator tube are lighted

up. The POWER LED is lighted up in red color if the system is turned off and POWER LED is turn off if the system is turned on.

3. When you want to enter to the software version display mode, press [DISC 1] button. The model information appears on the fl uorescent indicator tube. GSL 1R is shown for HCD-GT111, GSL 2R is shown for HCD-GT222, GSL 2RS is shown for HCD-GT444 and GSL 3RS is shown for HCD-GT555. Press [DISC 1] button again to view the destination information.

4. During the destination information display, press [DISC 1] button. Each time [DISC 1] button is pressed, the fl uorescent indicator tube shows the version of each category software in the following sequence: SC, GC, SYS, CD, CDDM, CDMA, CDMB, BDA, BDB, ST, TC, TA, TM, MM1, MM2 (USB Micro computer) , MTR (METER) and return back to model information display.

5. When [DISC 3] button is pressed while the version numbers are being displayed except model and destination, the date of the software creation appears. When [DISC 3] button is pressed again, the display returns to the software version dis-play. When [DISC 1] button is pressed while the date of the software creation is being displayed, the date of the software creation is displayed in the same order of software version dis-play.

6. Press [DISC 2] button, the key check mode is activated.7. In the key check mode, the fl uorescent indicator tube displays

K 0 J0 V0. Each time a button is pressed, K value increases. However,

once a button has been pressed, it is no longer taken into ac-count.

V value increases in the manner of 0,1, 2, 3 ... if [MASTER VOLUME] knob is turned clockwise, or it decreases in the manner of 0, 9, 8,7 ... if [MASTER VOLUME] knob is turned counterclockwise.

J value increases in the manner of 0,1, 2, 3 ... if [OPERA-TION DIAL] knob is turned clockwise, or it decreases in the manner of 0, 9, 8,7 ... if [OPERATION DIAL] knob is turned counterclockwise.

8. When [DISC SKIP/EX-CHANGE] button is pressed after all LEDs and segments in fl uorescent indicator tube light up, al-ternate segments in fl uorescent indicator tube and LEDs would light up. If you press [DISC SKIP/EX-CHANGE] button again, another half of alternate segments in fl uorescent indica-tor tube and LEDs would light up. Pressing [DISC SKIP/EX-CHANGE] button again would cause all segments in fl uores-cent indicator tube and LEDs light up.

9. To release from this mode, press three buttons in the same manner as step 1, or disconnect the power cord.

COMMON TEST MODEThis mode is used to check operations of the respective sections of Amplifi er and Tape.

To enter Common Test ModeProcedure:1. Press [x] button, [METER MODE] button and [DISC 3] but-

ton simultaneously.

2. The CD ring indicators fl ash on the fl uorescent indicator tube. The function is changed to AUDIO and the volume is changed to VOLUME MIN.

Check of Amplifi erProcedure:1. Press [EQ BAND] button repeatedly until a message GEQ

MAX appears on the fl uorescent indicator tube. GEQ increas-es to its maximum.

2. Press [EQ BAND] button repeatedly until a message GEQ MIN appears on the fl uorescent indicator tube. GEQ decreas-es to its minimum.

3. Press [EQ BAND] button repeatedly until a message GEQ FLAT appears on the fl uorescent indicator tube. GEQ is set to fl at.

4. When the [MASTER VOLUME] knob is turned clockwise even slightly, the sound volume increases to its maximum and a message VOLUME MAX appears on the fl uorescent indi-cator tube.

5. When the [MASTER VOLUME] knob is turned counterclock-wise even slightly, the sound volume decreases to its minimum and a message VOLUME MIN appears on the fl uorescent indicator tube.

Tape functionWhen a tape is inserted in deck and recording is started, the func-tion is changed to AUDIO.

To release from Common Test modeProcedure:1. To release from this mode, press [?/1] button.2. The cold reset is enforced at the same time.

COLD RESETThe cold reset clears all data including preset data stored in the EEPROM to initial conditions. Execute this mode when returning the set to the customer.Procedure:1. Press [?/1] button to turn on the system.2. Press [x] button, [ENTER] button, and [?/1] button simulta-

neously.3. COLD RESET appears on the fl uorescent indicator tube.

After that, the fl uorescent indicator tube becomes blank for a while, and the system is reset.

VACS ON/OFFThis mode is used to switch ON and OFF the VACS (Variable At-tenuation Control System).Procedure:1. Press [?/1] button to turn on the system.2. Press [x] button, [DISC 2], and [DISPLAY] button simultane-

ously. The message VACS OFF or VACS ON appears on the fl uorescent indicator tube.


17

TUNER STEP CHANGE (Except GT111: AEP, Russian/GT222: AEP, Russian/GT444: AEP, Ruissian, UK/GT555: Russian models)The step interval of AM channels can be toggled between 9 kHz and 10 kHz. This mode is not available for Saudi Arabian, Euro-pean and Russian models.Procedure:1. Press [?/1] button to turn on the system.2. Press [TUNER/BAND] button repeatedly to select the AM.3. Press [?/1] button to turn off the system.4. Press [ENTER] button and [?/1] button simultaneously. The

system turns on automatically. The message AM 9K STEP or AM 10K STEP appears on the fl uorescent indicator tube and thus the channel step is changed.

CD SERVICE MODEThis mode let you move the CD sled motor freely. Use this mode when you want to clean the optical pick-up.Procedure:1. Press [?/1] button to turn on the system.2. Press [CD] button to select CD function.3. Press [x] button, [METER MODE] button, and [OPEN/

CLOSE] button simultaneously.4. The CD service mode is activated. The message SERVICE

MODE appears on the fl uorescent indicator tube.5. With the disc in stop status, press [M] to move the optical

pick-up to outside track, or press [m] to move to inside track. The message SLED OUT or SLED IN appears on the fl uo-rescent indicator tube.

6. To turn on or off the laser, press [>] button. The message LD ON or LD OFF appears on the fl uorescent indicator tube.

7. To release from this mode, press [?/1] button.

CD AGING MODEThis mode can be used for operation check of CD section.If an error occurs, the aging operation would stops and the status is displayed. If there were no error occurs, the aging operation would continue repeatedly.Procedure:1. Press [?/1] button to turn on the system.2. Select CD function.3. Load three discs on the disc tray.4. Press [PLAY MODE] button on the remote repeatedly to select

the ALL DISCS mode, and press the [REPEAT] button on the remote repeatedly to select REPEAT OFF mode.

5. Press [x] button, [METER MODE] button and [DISC SKIP/EX-CHANGE] button simultaneously.

6. Aging operation is started.7. To release from this mode, press [?/1] button or disconnect the

power cord to turn off the system.

Aging mode sequence:

CD ERROR CODE MODEDisplay the CD error code when an error occurred Procedure:1. Press [x] button, [METER MODE] button and [DISC 1] but-

ton simultaneously to enter the error code display mode.2. The fl uorescent indicator tube displays the number of total er-

ror.3. Each time [m] or [M] button is pressed, display change as

below.

START (fromDisc 1)

Disc Chucking

TOC Reading

Play first track for 2seconds

Play last track for 2seconds

EX-CHANGE open/close

Open the disc tray

Disc skip

Close the disc tray

Change the disc tray


18

Display of no disc errore D*$$%%

D* : The number of no disc error (0 is latest one) (Press [>] button to display next error) $$ : Error type 01 : Focus error 02 : GFS error 03 : Setup error %% : Not used && : 00 : No disc judgment without chucking retry. 01 : No disc judgment after chucking retry. ## : The state when judged as no disc 01 : Stop 02 : Setup 03 : TOC reading 04 : Access 05 : Playback 06 : Pause 07 : Manual search (Play) 08 : Manual search (Pause)

CD REPEATS 5 LIMIT OFF MODEThe number of repeat for CD playback is 5 times when the repeat mode is REPEAT ALL. This mode enables CD to repeat play-back for limitless times.Procedure:1. Press [?/1] button to turn on the system.2. Select CD function.3. Press [x] button, [CD] button and [DISC 1] button simultane-

ously to enter the CD repeat 5 limit off mode and the fl uores-cent indicator tube displays LIMIT OFF.

4. To release from this mode, operate the cold reset. (Refer to the COLD RESET)

CD SHIP MODE (WITH MEMORY CLEAR)This mode moves the optical pick-up to the position durable to vibration and clears all data including preset data stored in the EE-PROM to initial conditions during the next AC-In. Use this mode when returning the set to the customer after repair.Procedure:1. Press [?/1] button to turn on the system.2. Select CD function.3. Press [x] button, [DISC 1] button and [?/1] button simultane-

ously. The system turns off automatically.4. After the STANDBY blinking display fi nishes, a message

MECHA LOCK is displayed on the fl uorescent indicator tube and the CD ship mode is set.

CD SHIP MODE (WITHOUT MEMORY CLEAR)This mode moves the optical pick-up to the position durable to vibration. Use this mode when returning the set to the customer after repair.Procedure:1. Press [?/1] button to turn on the system.2. Select CD function.3. Press [DISC SKIP/EX-CHANGE] button and [?/1] button si-

multaneously. The system turns off automatically.4. After the STANDBY blinking display fi nishes, a message

MECHA LOCK is displayed on the fl uorescent indicator tube and the CD ship mode is set.

4. To clear the error record, operate the cold reset. (Refer to the COLD RESET)

5. To release from this mode, press the [?/1] button or disconnect the power plug to turn off the system.

Display of total error EM**ED**

EM** : The number of mechanical errors. ED** : The number of no disc errors after chucking the disc.

Display of mechanical errors M*$$%%

M* : The number of mechanical error (0 is latest one) (Press [>] button to display the next error) $$ : Not used %% : Loading related error (Second fi gure is not used) D : Stop by the problem other than mechanical problem

while closing. E : Stop by the problem other than mechanical problem

while opening. C : Stop by the problem other than mechanical problem

while chucking up. F : Stop by the problem other than mechanical problem

while chucking down. && : Emerging error 01 : Stop while chucking up. 02 : Stop while chucking down. 03 : Time-out of EX-CHANGE open. 05 : Time-out of EX-CHANGE close. ## : Not used

Display of Total Error

Display of Mechanical

Errors

FF button

AMS (+)button

AMS (+)button

AMS ()button

AMS ()button

FR button

FF button FR button

Display of No DiscErrors


19

CD TRAY LOCK MODEThis mode let you lock the disc tray. When this mode is activated, the disc tray will not open when [OPEN/CLOSE] button or [DISC SKIP/EX-CHANGE] button is pressed. The message LOCKED will be displayed on the fl uorescent indicator tube.Procedure:1. Press [?/1] button to turn on the system.2. Select CD function.3. Press [x] button and [OPEN/CLOSE] button simultaneously

and hold down until LOCKED or UNLOCKED displayed on the fl uorescent indicator tube (around 5 seconds).

FACTORY PRESETThis mode is use to load all the factory use preset frequencies into FM 1-FM 20 and AM 1-AM 10. Originally, frequency of FM 1-FM 20 and AM 1-AM10 are set to the minimum frequency.Procedure:1. Press [?/1] button to turn on the system.2. Press [TUNER/BAND] button, [x] button, and [DISC 1] but-

ton simultaneously and the message FACTORY appears on the fl uorescent indicator tube. The function is changed to TUNER automatically.

VACS DISPLAYThis mode is used to check the VACS level.Procedure:1. Press [?/1] button to turn on the system.2. Press [ERASE] button, [x] button and [ENTER] button si-

multaneously.3. The fl uorescent indicator tube displays VACSA. A repre-

sents Conventional VACS (Triggered by signal level) 4. To release from this mode, do the step 2 again.

METER SWITCH TOUCH COUNT DISPLAYThis mode is used to display the total count of meter pointer touch initial switch and max switch.Procedure:1. Press [?/1] button to turn on the system.2. Press [x] button, [ENTER] button and [DISPLAY] button si-

multaneously.3. The fl uorescent indicator tube displays IxxxxxMyyyyy. I represents the Initial Switch touch. xxxxx represents the total count of Initial Switch touch. (Maximum Value of xxxxx = 65535) M represents the Max Switch touch. yyyyy represents the total count of Max Switch touch. (Maximum Value of yyyyy = 65535) 4. To release from this mode, do the step 2 again. The fl uorescent

indicator tube displays MODE OUT.

METER TEST MODEThis mode is used to check the meter device.Procedure:1. Press [?/1] button to turn on the system.2. Press [x] button, [ENTER] button and [METER MODE] but-

ton simultaneously.3. Meter Backlight LEDs, Meter Pointer LEDs, Power Illumina-

tor LEDs and fl uorescent indicator tube are lighted up. 4. When you want to perform count total step from Initial Switch

to Max Switch operation mode, press [M] button. The me-ter pointer will move from Initial Switch to Max Switch and fi nally move back to the middle position. The total step count information appears on the fl uorescent indicator tube. xxx STP yy is shown.

xxx represents the total step. (Value of xxx should between 430 steps to 470 steps) yy represents the status of total step count. (If total step between 430 steps to 470 steps, yy is OK, Else yy is NG)5. When you want to perform count total step from Max Switch

to Initial Switch operation mode, press [m] button. The me-ter pointer will move from Max Switch to Initial Switch and fi nally move back to the middle position. The total step count information appears on the fl uorescent indicator tube. xxx STP yy is shown.

xxx represents the total step. (Value of xxx should between 430 steps to 470 steps) yy represents the status of total step count. (If total step between 430 steps to 470 steps, yy is OK, else

yy is NG).6. To release from this mode, do the step 2 again. The fl uorescent

indicator tube displays TST MODE OUT.


20

SECTION 5MECHANICAL ADJUSTMENTS

PRECAUTION1. Clean the following parts with a denatured-alcohol-moistened

swab : record/playback head pinch roller erase head rubber belts capstan idlers2. Demagnetize the record/playback head with a head demag-

netizer. (Do not bring the head magnetizer close to the erase head.)

3. Do not use a magnetized screwdriver for the adjustments.4. After the adjustments, appiy suitable locking compound to the

parts adjusted.5. The adjustments should be performed with the rated power

supply voltage unless otherwise noted.

Torque MeasurementMode Torque Meter Meter Reading

FWD CQ-102AS2.0 8.0 mN m (20 to 80 g cm)

(0.28 1.12 oz inch)

FWDBack Tension CQ-102C

0.15 0.6 mN m (1.5 to 6 g cm)

(0.021 0.083 oz inch)

FF CQ-201AS5 17.7 mN m

(50 to 177 g cm)(0.7 2.48 oz inch)

REV CQ-201B5 17.7 mN m

(50 to 177 g cm)(0.7 2.48 oz inch)

Tape Tension MeasurementMode Tension Meter Meter Reading

FWD CQ-403A more than 80 g(more than 2.82 oz)


21

SECTION 6ELECTRICAL ADJUSTMENTS

1. Demagnetize the record/playback head with a head demagne-tizer.

2. Do not use a magnetized screwdriver for the adjustments.

TEST TAPETape Signal Used for

P-4-A063 6.3 kHz, -10 dB Azimuth Adjustment

RECORD/PLAYBACK HEAD AZIMUTH ADJUSTMENT

Procedure:1. Mode: Playback

set

MIC boardPHONES jack(J702)

+

level meter

test tapeP-4-A063(6.3 kHz, 10 dB)

2. Turn the adjustment screw and check output peaks. If the peaks do not match for L-CH and R-CH, turn the adjustment screw so that outputs match within 1dB of peak.

3. Mode: Playback

set

test tapeP-4-A063(6.3 kHz, 10 dB) oscilloscope

V H

waveform of oscilloscope

in phase 45 90 135 180

good wrong

MIC boardPHONES jack(J702)

4. After the adjustments, apply suitable locking compound to the pats adjusted.

Screwposition

L-CHpeak

within1 dB

Outputlevel

L-CHpeak

R-CHpeak

within1 dB

Screwposition

R-CHpeak

DECK SECTION 0 dB = 0.775V Adjustment Location: Record/Playback/Erase Head

CD SECTION

Note:1. CD Block is basically designed to operate without adjustment. There-

fore, check each item in order given.2. Use YEDS-18 (PART No. 3-702-101-01) unless otherwise indicated.3. Use an oscilloscope with more than 10M impedance.4. Clean the object lens by an applicator with neutral detergent when the

signal level is low than specifi ed value with the following checks.

TEST DISC LISTUse the following test disc on electrical checks.YEDS-18 (PART No. 3-702-101-01) orPATD-012 (PART No. 4-225-203-01)

S-CURVE CHECK

+

CD board

oscilloscope(DC range)

TP106 (FE)TP124 (VC)

Procedure :1. Connect an oscilloscope to TP106 (FE) and TP124 (VC).2. Turn the power ON.3. Load a disc (YEDS-18) and actuate the focus search. (In con-

sequence of open and close the disc tray, actuate the focus search)

4. Confi rm that the oscilloscope waveform (S-curve) is symmet-rical between A and B. And confi rm peak to peak level within 1.8 0.5 Vp-p.

Note: Try to measure several times to make sure than the ratio of A : B or B

: A is more than 10 : 7. Take sweep time as long as possible and light up the brightness to

obtain best waveform.

symmetryS-curve waveform

within 1.8 0.5 Vp-p

A

B


22

RF LEVEL CHECK

Procedure :1. Connect an oscilloscope to TP123 (RFO) and TP124 (VC).2. Turn the power ON.3. Load a disc (YEDS-18) and playback.4. Confi rm that oscilloscope waveform is clear and check if RF

signal level is correct or not.Note: Clear RF signal waveform means that the shape can be clearly

distinguished at the center of the waveform.

Connecting Location : CD board

TP123 (RFO)

CD boardoscilloscope

TP124 (VC)

RF signal waveformVOLT/DIV : 200 mVTIME/DIV : 500 ns

level : 1.3 0.3 Vp-p

FM TUNE LEVEL CHECK

signalgenerator

set

Procedure:1. Turn on the set.2. Input the following signal from signal generator to FM antenna

input directly. Carrier frequency : A = 87.5 MHz, B = 98 MHz, C = 108 MHz Deviation : 75 kHz Modulation : 1 kHz ANT input : 35 dBu (EMF)

Note: Use 75 ohm coaxial cable to connect signal generator and the set. You cannot use video cable for checking.

Use signal generator whose output impedance is 75 ohm. 3. Set to FM tuner function and tune A, B and C signals.4. Confi rm TUNED is lit on the display for A, B and C sig-

nals. When the selected station signal is received in good condition, TUNED is displayed.

TUNER SECTION

TP106 (FE)

IC101TP123 (RFO)

TP124 (VC)

CD Board (Conductor Side)



2323

SECTION 7DIAGRAMS

7-1. BLOCK DIAGRAM - CD SERVO, USB Section -

SYSTEM CONTROLLERIC401 (1/4)

CD-MP3 PROCESSORIC101

MUTE

2-AXISDEVICE

(

T

R

A

C

K

I

N

G

)

(

F

O

C

U

S

)

95

89

A

+3.3VDETECTOR

FNi1 (A)

RFo97 FPi1 (B)

88

2

AGCi

3RFRP RFZi

76TEi TEZi

83RFEQo 81 RFi82 RFRPi

30LO

27RO

46AoUT3 (PO4)50PIO2

65AIN (PI4)

66BCKi (PI5)BCK

A-IN

BUS1-U

BUS0-U

BUS2-U

BUS3-U

BUCK-U

67LRCKi (PI6)LRCK

51PIO3GATE

49PIO1ST-REQ

38BUS0

R-CH94 FNi2 (C)

96 FPi2 (D)

100 TNi (E)

98 TPi (F)

91 LDo 92MDi

2 VO1+

1 VO1

13 DMo

LDPD

LASER DIODE

OPTICAL PICK-UPBLOCK

(KSM-213DCP)

B

C

D

E

F

12 FMo

10 TRo

9 FOo

20 IO0 (/HSO)

I

-

V

A

M

P

M401(SPINDLE)

M402(SLED)

12 VO2

11 VO2+

18 VO3+

17 VO3

26 VO4+

27

7

IN4 24

IN3 20

IN2 9

IN1 3

BIAS 23

84 VRo

VO4

M

M

FOCUS/TRACKING COIL DRIVE,SLED/SPINDLE MOTOR DRIVE

IC401

S201(LIMIT)

+3.3V

24 XO

23 XIX102

16.9344MHz

47 CD-MMUTE

CD-L

R-CHUSB_REC-L

: CD PLAY

SIGNAL PATHR-ch is omitted due to same as L-ch.

: TUNER (FM/AM)

: USB

VCC

A

B

C

D

E

F

LD

PD

SP+

VC

SP

SL+

SL

T+

T

F+

F

47AoUT2 (PO5)63BCK (PO8)

CLKDATA

2 1 41 CD BUS013

39BUS1 3 4 42 CD BUS15

40BUS2 (SO) 9 8 43 CD BUS2

45 CD CLK

641BUS3 (SI) 10 11 44 CD BUS3

12

BUS SWITCHIC670

2 113

3 45

9 86

10 1112

BUS SWITCHIC672

Q671

DATA SELECTORIC673

SELECT

42BUCK (CLK) 42

3

CCE-U46 CD CCE

43XCCE

54SBSY

48PIO0

7

40 MP3 IREQ

37 USB SEL-SW19 SBSY

37XRST 48 CD-XRST

5

REQ-U

6

1214

13

910

11

1

CLKDATA

LB

I

/

O

0

I

/

O

1

5

D

0

D

1

5

S-RAMIC921

39UB40

OE41WE17

CE6

79D+

80D

77USBOC

USB CONTROLLERIC901 CN1000

(USB)

3

2

1

D+

D

78USBPON

70CS264RD65WR66SRLLB67SRLUB

VBUS

VBUS POWERON/OFF SWITCH

IC915

5

1

4 OUT

EN3

FLG

INVBUS+5V

93 DATA92 BCK

85 DATA86 CLOCK

71 LRCK94 GATE97 ST-REQ

55 BUS056 BUS1

88 RXD187 TXD1

2 DI84 DO1 /RESET

57 BUS258 BUS359 /BUCK60 /CCE96 REQ

7

1

0

,

1

3

1

6

,

2

9

3

2

,

3

5

3

8

1

8

2

5

,

2

8

3

5

A

0

A

1

5

A

1

A

1

6

4

4

4

2

,

2

7

2

4

,

2

1

1

8

,

5

1

3

7

4

3

,

4

6

5

4

73 X2

75 X1X9019MHz

AUTOMATICPOWER

CONTROLQ301

BCKA-IN

LRCKGATEST-REQ

BUS1-UBUS0-U

BUS2-UBUS3-UBUCK-UCCE-UREQ-U

35USB TXD036USB RXD0

38USB RTS034USB CTS033USB RESET

A/D CONVERTERIC501

STDOSCLK

AINL 2AINR 1

912

LRCKMCLK

1011

PDN13

DATA SELECTORIC502

3Y3B 10

SELECT 1

3A 111B 31A 22B 62A 5

9

1Y4

2Y7

AB

CD MECHANISMDECK

M1-M2+M2-

M1+M1+ 21M1- 18M2+ 7M2- 6

MOTORDRIVE

Q640, 641,Q643 - 648

SW3SW2SW7-CHACK

SW1SW1 23SW3 22SW2 25

SW-CHUCK 24SW5-STOCK

SW8-OPENSW6-CLOSE

SW-STOCK 27SW-CLOSE 26SW-OPEN 28

(Page 24)(Page 24)



2424

7-2. BLOCK DIAGRAM - MAIN Section -

R-CH

L501BIAS OSC

S501(REC/PB)

PB

REC

REC AMPIC502

PB AMPIC501

OSCQ501, 502

TUNER (FM/AM)

TAPE MECHANISMDECK

AM

FM ANT

AM ANT

ST-L

ST-R

ST-DOUT

R-CH

LCH

RCH

EH

R-CH

ST-DINST-CLKST-CE

FM75COAXIAL

ANTENNA

AUDIO INPUT

L

R

J701

TUNED 61 ST-TUNED

RDS-DATA 76 ST-RDS-DATARDS-INT 75 ST-RDS-INT

45 TAPE-L

43 ST-L

21

D

A

T

A

22

C

L

K

42

30

AUX-L

46 MIC

29 VOLINLTONEOUTL 26OUTL44 CD-L

T

C

-

T

A

P

E

S

T

A

T

E

67 ST-DOUT

66 ST-CLK63 ST-CE

82

R

2

A

1

5

2

1

6

F

P

-

D

A

T

A

60

9

S

A

2

P

O

W

E

R

I

L

L

U

M

I

N

E

T

O

R

68

V

A

C

S

I

N

89R

2

A

1

5

2

1

6

F

P

-

C

L

K

59

M

I

C

/

H

P

D

E

T

71

23SWOUT

28BB1L

36RECBL

37RECAL

BAND-PASSFILTER

Q115, 116

R-CH

27BB2L

BASS AGCQ128

D630

D201

INPUT SELECTOR,ELECTRICAL VOLUME

IC407


: TUNER (FM/AM)

: CD PLAY


: TAPE PLAY

: MIC

: TAPE REC

: AUDIO IN

(GT444/GT555)

(GT111: AEP/GT222: AEP/GT444: AEP, UK)

J700MIC

RV700MIC LEVEL

MIC AMPIC700 (1/2)

MIC AMPIC700 (2/2)

SW

C HP IN

A CD-L

BUSB_REC-L

ESW OUT

FBASS AGC

DOUT

LINE AMPIC251

65 ST-DIN

(Page 23)

(Page 25)

(Page 23)

(Page 25)

(Page 25)

(Page 25)



2525

7-3. BLOCK DIAGRAM - AMP Section -

OUT LINE AMPIC252D

BASS AGCF

SW OUTE

POWERAMPIC800

MUTINGQ402

OVER LOADDETECT

Q801

OVER LOADDETECT

Q802

R-CH

MUTINGQ430

LINE AMPIC253

STANDBY SWITCHQ813

(TYPE A)

+R-CH

R-CH

R-CH

MUTINGCONTROL

Q670

L

I

N

E

M

U

T

E

58

S

T

K

M

U

T

E

51

S

W

S

P

K

R

E

L

A

Y

52

+ R-CH

PROTECT DETECTQ806, 809 - 811 (TYPE A)Q806, 809, 811 (TYPE B)

FAN MOTORDRIVE

Q690, 691,Q693 -695,

Q697

RY800

++

RY890

D632

D807

M M102(FAN)

FAN MOTORDRIVE

Q110 - 113M M101(FAN)

PHONES

+ SUBWOOFER

JK890

RELAYDRIVEQ805

F

R

S

P

K

R

E

L

A

Y

53

P

R

O

T

E

C

T

50

RELAYDRIVEQ804

R-CHJ702


: TUNER (FM/AM)


(GT444/GT555)

(GT222/GT444/GT555)

+OVER LOAD

DETECTQ803

R

LFRONT

SPEAKER

JK800

PROTECT G

DC DETECT H

STBY LED J

HP IN C

DC DETECTQ812, 814, 815

LEVEL SHIFTQ447

(TYPE A)

(TYPE B)DC DETECT

Q815

(TYPE B)

(Page 24)

(Page 24)

(Page 24)

(Page 24)

(Page 26)

(Page 26)

(Page 26)

Ver. 1.2

Note: A part of circuit composition of POWERAMP board has been changed in the midway of production. POWERAMP board that has not been changed appears as TYPE A, and the changed POWERAMP

board appears as TYPE B.



2626

7-4. BLOCK DIAGRAM - PANEL, POWER SUPPLY Section -

REMOTE CONTROLRECEIVER

IC1102

FL1101FLUORESCENT

INDICATORTUBE

MOTORASSY

S031(METER POSITION DETECT)

3 SW LED

AD-KEY0 -AD-KEY2

FLUORESCENT INDICATORTUBE DRIVER

IC1101SYSTEM CONTROLLER

IC401 (4/4)

F907

RECTD911, 912

PROTECTDETECT

Q606

RECTD602

D006

LED-VOL1. 2 -LED-VOL5. 6

S1165 - 1180,S1182 - S1192,

S1193,

S1194, 1195

54STBY RELAY

20AC-CUT

RESET SWITCHQ214, 215

D213

+3.3V

UNREG +16V

VBUS+5V

EVER +10V

83OVERVOLTAGE

12RESET

91 MASTER VOL

2

1

3

,

1

5

,

1

6

DR35 - DR16

3

8

1

9

DR0 - DR13

7

9

-

7

7

METER IN1 -METER IN4

1

0

0

,

8

4

,

1

,

2

9

7

,

9

5

,

9

4

LED DRIVEQ1139, 1141,

Q1143

GRID DRIVEQ1102 - 1113,Q1115, 1116

D1124 - 1129(STREAM)

LED DRIVEQ1205

70 USB-BLUE LEDLED DRIVEQ1190

D1205SUBWOOFER

72 STBY LED

KEY0

4 SIRCS

D1196I/

STANDBY

ROTARYENCODER

MASTERVOLUME

OPERATIONDIAL

S1052

90 OPERATION DIALROTARYENCODER

S1051

13 X-OUT

15 X-IN

METER SW

X4025MHz

11 XC-OUT

10 XC-INX401

32.768kHz

SI FL-DRIVER-DATA49 86SCK FL-DRIVER-CLK48 85

EEP-SDA55EEP-SCL56

CSB FL-DRIVER-CS51 87RSTB FL-DRIVER-RESET52 88

74 POWER/DISPLAY-KEY

(AC IN)

RY901

RELAYDRIVEQ903

VOLTAGESELECTOR

S901

D+1.5V+1.5V

REGULATORIC201

D605 D055

D623, 624

D908

A+9V

M+9VM+7V

F906RECTD601

F904F905RECTD801

F908F909RECTD800

RECTD812

D608

+9VREGULATOR

IC080

+9VREGULATOR

IC602

A/D CONVERTER +5V+5V

REGULATORQ696

M+5V+5V

REGULATORQ1220

+3.3VREGULATOR

IC603

+5VREGULATOR

IC050

+4VREGULATOR

Q210 - 212

SEL A, SEL B

CD MECHANISMMOTOR B+

REGULATORQ655 - 658

73LED CTRL

5CDM-SD

TAPE +9V B+ SWITCHQ681, 684

49TC_M+9V SW

JOG B+

39AD SUPPLY SW

B+ SWITCHQ627, 628

32VREGULATOR

Q902

AMPSECTION

B+

FORFLUORESCENT

INDICATORTUBE

(GT222/GT555)

(GT222/GT444/GT555)

VFL

VFVF

PT902SUB POWER

TRANSFORMER

PT901MAIN POWER

TRANSFORMER

GT111: AEP, RU, AR/GT222: AEP, RU, MX, AR/

GT444: AEP, UK, RU, MX, AR/GT555: RU, MX, AR

GT111: E2, E3, E51/GT22: E2, E51/GT44: E2,

E51/GT55: E2, E51

(GT444/GT555)

(GT444/GT555)

(GT222/GT444/GT555)

45

46

XT

XTB

OSC

VDD+3.3V

D+3.3V,VREF+3.3V

+VHVH

+VLVL

Abbreviation AR : Argentina model E2 : 120V AC Area in E model E3 : 240V AC Area in E model E51 : Chilean and Peruvian models MX : Mexican model RU : Russian model

D1000, 1003(USB)

80 METER LEDLED DRIVEQ010D015

D011 - 014,

(ILLUMINATION)

B+ SWITCHQ1114, 1117,Q1120, 1122

MOTORDRIVEIC001

EEPROMIC675

81

GT111: AEP, RU, AR/GT222: AEP, RU, MX, AR/

GT444: AEP, UK, RU, MX, AR/GT555: RU, MX, AR

PROTECT G

DC DETECTH

STBY LEDJ(Page 25)

(Page 25)

(Page 25)



2727

For Schematic Diagrams.Note: All capacitors are in F unless otherwise noted. (p: pF) 50 WV or less are not indicated except for electrolytics

and tantalums. All resistors are in and 1/4 W or less unless otherwise

specifi ed. f : internal component. 2 : nonfl ammable resistor. 5 : fusible resistor. C : panel designation.

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.(In addition to this, the necessary note is printed in each block.)

A : B+ Line. B : B Line. Voltages and waveforms are dc with respect to ground

under no-signal (detuned) conditions. CD Board no mark : CD PLAY TC Board no mark : TAPE PLAY ( ) : TAPE REC Other Boards no mark : TUNER (FM/AM) ( ) : CD PLAY : TAPE PLAY { } : TAPE REC Voltages are taken with a VOM (Input impedance 10

M). Voltage variations may be noted due to normal production

tolerances. Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production

tolerances. Circled numbers refer to waveforms. Signal path. F : TUNER (AM/FM) J : CD PLAY E : USB d : TAPE PLAY G : TAPE REC f : AUDIO IN N : MIC Abbreviation AR : Argentina model E2 : 120V AC area in E model E3 : 240V AC area in E model E51 : Chilean and Peruvian models MX : Mexican model RU : Russian model

For Printed Wiring Boards.Note: X : Parts extracted from the component side. Y : Parts extracted from the conductor side. f : Internal component. : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.)

Circuit Boards Location

The components identifi ed by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specifi ed.

Caution:Pattern face side:(Conductor Side)Parts face side: (Component Side)

Parts on the pattern face side seen from the pattern face are indicated.Parts on the parts face side seen from the parts face are indicated.

DISPLAY board

TC board

DISPLAY board

5V REG board

USB board

SW JACK board(GT444/GT555)

MAIN board

POWERAMP board

9V REG board

TRANS1 board (GT111: E2, E3, E51)/TRANS2 board (GT222/GT444/GT555)/TRANSX board (GT111: AEP, RU, AR)

LED board (GT222/GT444/GT555)/LED (GSL1) board (GT111)

SW board(GT222/GT444/GT555)

MOTOR DRIVE board (GT222/GT444/GT555)

VOLUME board

CD board

USB CONNECTOR board

MIC board

Indication of transistor.

C

BThese are omitted.

E

Q

C EBThese are omitted.



2828

7-5. SCHEMATIC DIAGRAM - CD Board (1/2) - See page 54 for Waveforms. See page 57 for IC Pin Function Description.

R153

R304

R303

R111

Q301

R301

R10

1

R12

8

R143 R142

R139

R140

R15

1

R15

9

R16

0

R16

1

IC101

CN301

C30

2

C303 C306 C307

C309

C100

C139

C140C141

C142

C106

C105R144

C143 C144

C146

C145

C147

C104

C149

C148

C150

C117

C118

C120

C10

2C123

C101

C122

C12

6

C12

7

C103

R104R1061k

C132

R154

C115

C116

C110

R110

C133

R112

R120

R121

R114

R109

C112

R118

C153

C108

C136

R135

R136 R134C138

C107

C301

C11

9

C113

R105

X10216.9344MHz

C130C128R102

C137

R108

R302

R130

R12

9

S201

R155

TP121

TP124

TP106

TP10

7

1M

2.2

2.2

100

2SA2119K

100k

220

470k

47k 22k

47k

0

0

100

100

100

TC94A70FG-101

16P

10

10 10010V 1

0.001

0.1

0.01

0.01 0.0022

0.110010V

0.1 22k

0.01 0.1

470p

0.01

0.1

0.1

22p

47p

0.001

0.022

0.01

0.01

0.1

470p

0.1

470p

0.1

0.00

22

0.1

0

0.1

1M

226.3V

0.1

0.1

10k

0.1

100

0

100

10k

100

0.1

100k

0.1

0.1

47p

470k

22k 1M470p

0.1

0.1

0.02

20.1

1M

5p5p10k

0.01

0

4.7k

1k

47

(RFI)

(VC)

TP123 (RFO)

(FE)

(TE)

A1

A2

A3

A4

A5

A7

A8

A9

A10

A11

A12

A13

A14

A15

A16

A17

A18

A19

A20

A21

A22

A23

A24

A25

A26

A27

A28

A29

A30

A31

A32

A33

A34

A35

A36

A37

A38

A39

A40IP

F

SB

SY

RF

RP

FM

O

DM

O

XI

XO

RO

DVR

LO

BUS0

BUS1

LDo

MDi

VC

Oi

TR

o

FO

o

TE

i

TE

Zi

SB

OK

/FO

K

RF

Zi

FE

i

SF

SY

/LO

CK

BUS2(SO)

BUS3(SI)

BUCK(CLK)

PIO0

PIO2

PIO

3

PIO1

IRQ

MS

FG

iN

IO0

(/H

SO

)

IO1

(/U

HS

O)

DO

UT

(PO

6)

AO

UT

(PO

7)

BC

K(P

O8)

LR

CK

(PO

9)

BC

Ki(P

I5)

AIN

(PI4

)

LR

CK

i(P

I6)

AW

RC

TM

AX

TM

AX

S

PD

o

LPFo

VCOF

SLCo

RFi

RFRPi

RFEQo

TESTR

AGCi

RFo

TNPC

TEST

ZD

ET

GP

IN

RESiN

VMDiR

DVDD3

XV

DD

3

XV

SS

3

VD

DP

3

VS

SP

3

AV

DD

3

AV

SS

3

RVDD3

RVSS3

VDDM1

PV

DD

3

PVSS3

PVREF

VRo

VR

EF

XRST

SRAMSTB

SB

AD

/RF

DC

VD

D1

VS

S1

DVSS3

DVSS3

VDDT3

VSS1

VDD1

XCCE

AoUT2(PO5)

AoUT3(PO4)

VS

S1

VD

DT

3

VD

D1

VS

S1

LP

FN

TNi(E)

TPi(F)

FPi1(B)

FPi2(D)

FNi1(A)

FNi2(C)

T+

VC

GND

LD

PD

F+

T-

F-

VCC

E

D

A

B

C

F

VR

(1/2)

(LIMIT)

AUTOMATICPOWER

CONTROL

CD-MP3 PROCESSOR

OPTICAL

PICK-UPBLOCK

(KSM-213DCP)

(1/2)

(Page 29)



2929

7-6. SCHEMATIC DIAGRAM - CD Board (2/2) - See page 54 for IC Block Diagrams.

R201

R203

R204

R205

R206

R207

R208

R209

R210

R219

R223

R222

R221

R218

C401R415

M402

M401

R220

IC401

R211

R212

R213

R214

CN201

IC501

IC502

R510

R509

R414

C508

C510C511

R511

R512

R224

R502

R514

R216

R226

C207

IC201

C509

C501

C506

C507

C20

6

R202

C205

C204C202

C201

R513

C405 C404 C403

C124

C125

C151

C152

C217

C218

R505 R503

R225

C109

R156

R157

R402

R405

R408

C505 R508

C502

C504

0

100

100

100

100

100

100

100

100

100k

100k

100k

100k

100k

22010V47k

100k

BA5826SFP

100

100

100

100

31P

AK5358A

TC74VHC157FT

1k

100k

4.7k

0.1

0.10.1

1k

1k

100

47k

0

100

100k

1

TK63115SCL-G@GT

0.1

1016V

0.1

0.1

1

0

0.1

0.1100 10V

100 10V

100

0.1 0.1 0.1

0.0047

0.0047

0.0022

0.0022

0.1

0.1

47k 47k

100k

0.1

100

100

2.2k

10k

2.2k

2.2 47k

10 16V 10010V

A1

A2

A3

A4

A5

A7

A8

A9

A10

A11

A12

A13

A14

A15

A16

A17

A18

A19

A20

A21

A22

A23

A24

A25

A26

A27

A28

A29

A30

A31

A32

A33

A34

A35

A36

A37

A38

A39

A40

GN

D

VO

1+

VO

1-

IN1

RE

SE

T

RE

GB

RE

GO

UT

MU

TE

IN2

'

IN2

VO

2+

VO

2-

GN

D

OP

OU

TO

PIN

RE

SE

T t

VO

3-

VO

3+

IN3

IN3'

VC

C

VC

C

BIA

S

IN4

'

IN4

VO

4+

VO

4-

GN

DVcc

GND

AINR

AINL

CKS1

VCOM

AGND

VA

VD

DGND

CKS0

CKS2

DIF

PDN

SCLK

MCLK

LRCK

SELECT

1A

1B

1Y

2A

2B

2Y

ST

4A

4B

4Y

3A

3B

3Y

STDO

D-OUT

L-OUT

R-OUT

DVDD(3.3V)

AVDD(3.3V)

AGND

DGND

MGND

VM(7V)

BUS0

BUS1

BUS2

BUS3

BUCK

SBSY

DACGND

REQ

ST_REQ

GATE

VOUT

NC

VDD

CE

GND

M-MUTE

DATA

CLK

AIN

ADCGND

ADCVDD(5V)

(2/2)

DATA SELECTOR

A/D CONVERTER

+1.5V REGULATOR

MOTOR DRIVE

SLED/SPINDLECOIL DRIVE,

FOCUS/TRACKING

(SLED)

OPTICAL

PICK-UPBLOCK

(KSM-213DCP)(2/2)

BCK

LRCK

/CCE

/RST

L-IN

R-IN

(SPINDLE)

(Page 28)

(Page 39)



3030

R214

R213

R155

C106

C201

R304R302

C309

C205

C207

C307R201

R303

C115

R211

Q301 R301

C204 C2

02

C206C3

06

R212

C401

C405

IC201

R120

R114

C153

R415

C112

C108

IC501IC502

C501

C502

C104

C105

C102 C101

R104

C132

C107

C507

R512

R503

R505

R511

C110

C508

R514X1

02

C504

C217

C218

M401 M

M M402

S201

R

1

5

4

R

1

5

3C148C109

C

3

0

1

C

3

0

3

C

3

0

2

R

1

1

0

C116

C404

R

2

0

3

R

2

0

4

R

2

0

5

R

2

0

6

R207R208

R209R210

R219

R

2

2

3

R

2

2

2

R

2

2

1

R218

C

1

5

0

C403

R202

C151

C147C146C145

C152

C

1

1

8

C

1

1

7

C

1

4

4

C125

C

1

4

3

C120

R

1

4

4

R157

C

1

4

2

C

1

4

1

C140

C

1

0

0

R

4

0

8

R156

C124

IC401

C127C126

CN301

R101

C119

IC101

C103

R

4

0

5

C113

R102

R402

R

1

0

5

R

1

0

6

C

1

3

8

C

1

3

7

R135

R134

R

1

3

6

R130

R

1

2

8

R

1

2

9

R

1

4

3

R

1

4

2

R

1

3

9

C

1

3

6

C149

C

1

3

9

R140

R

1

5

1

C122C123

R

2

2

0

R224

R

1

0

9

R

1

0

8

R414

R502

R508

R

5

0

9

R

5

1

0

R

5

1

3

C

5

0

5

R

1

5

9

R

1

6

0

R

1

6

1

R226

C

N

2

0

1

C130

C128

C506

R

1

1

2

R

1

1

1

C

1

3

3

R121

R225R216

R

1

1

8

C

5

0

9

C510

C511

1-875-864-

11

(11)

CD BOARD (COMPONENT SIDE)

E

1

3

5

4

1-875-864-

11

(11)

CD BOARD (CONDUCTOR SIDE)

LMAIN

BOARDCN430

OPTICAL PICK-UPBLOCK(KSM-213DCP)

(SLED)

(SPINDLE)

(LIMIT)

A

B

C

D

E

F

1 2 3 4 5 6 7 8 9 10 11

TP123(RFO)

TP124(VC)

TP106(FE)

7-7. PRINTED WIRING BOARD - CD Board - See page 27 for Circuit Boards Location. : Uses unleaded solder.

(Page 35)

Ref. No. Location

Semiconductor Location

IC101 D-8 IC201 E-1 IC401 C-9 IC501 B-5 IC502 B-5

Q301 E-4



3131

8

1 4

5

8

14

5

R510R514

R526R528

R534

R537

R538

R539

C

5

1

0 C535

C536

C537

C538

JR503

J

R

5

0

2

J

R

5

0

1

R546

R

5

4

5

R544

R543

R

5

4

1

R

5

4

0

R

5

3

6

R

5

3

5

R

5

3

3

R

5

3

2

R

5

3

1

R

5

3

0

R

5

2

9

R527

R525

R

5

2

4

R

5

2

3

R522

R521

R

5

2

0

R

5

1

9

R518

R517

R516R515

R513

R

5

1

2

R

5

1

1

R509

R

5

0

8

R

5

0

7

R

5

0

6

R

5

0

5

R504

R503

R

5

0

2

R501

C

5

4

6

C

5

4

5

C

5

4

3

C

5

3

9

C

5

3

4

C

5

3

3

C532

C531

C

5

3

0

C

5

2

9

C528

C527

C

5

2

6

C

5

2

5

C

5

2

3

C

5

2

2

C

5

2

1

C

5

2

0

C

5

1

9

C

5

1

7

C

5

1

2

C

5

1

1

C

5

0

9

C

5

0

6

C

5

0

5

C

5

0

4

C

5

0

3

JR504C

5

4

8

C

5

2

4

E

B

E

B

1

8

Q501 Q502

L5011 3

46

CN501

C501 C502

C513

C514

C515

C516

S501

C540

C542

J

W

5

0

2

J

W

5

0

4

J

W

5

1

0

E

T

5

0

1

J

W

5

0

8

J

W

5

0

7

J

W

5

0

6

J

W

5

0

5

J

W

5

0

1

J

W

5

0

9

J

W

5

0

3

BIAS OSC

IC501

I

C

5

0

2

TAPE MECHANISMDECK

9

1

BMAIN

BOARDCN450

FFC502

S501

(REC/PB)PBUREC

1-875-675-

13

(13)

A

B

C

D

1 2 3 4

TC BOARD

(CHASSIS)

7-8. PRINTED WIRING BOARD - TC Board - : Uses unleaded solder. See page 27 for Circuit Boards Location.

7-9. SCHEMATIC DIAGRAM - TC Board -

(Page 35)

21

CN450

MAIN(1/4)

BBOARD

9 4

.

4

4

.

4

4

.

3

4

.

4

4

.

4

4

.

4

4

.

4

4

.

4

4

.

4

9

4

.

4

4

.

4

4.4(5.3)

0.3

0.3(0)

0(0.2)

(5.3)0.3

0.3(0.1)

6

21 3

5 4

0R515

100kR511

100kR513

0

R

5

1

6

100kR512

100kR514

R54047

R54147

R5394.7

R537 10k R538 10kR5364.7k

R5354.7k

R53415k

R

5

3

3

2

2

k

R5032.2k

R5042.2k

2.2kR501

2.2kR502

R517 1k

R518 1k

R520 47k

R519 47k

R521 47k

R522 47k

R526330k

R528330k

R

5

2

5

3

3

0

k R527330k

R5302.2k

R5292.2k

R5318.2k

R5328.2k

R523 3.3k

R524 3.3k

470R545

470R546

1000pC517

220pC511

220pC512

47pC525

4

7

p

C

5

2

6

2200pC537

2200pC536

2200pC535

C5391

C538 0.01

C

5

0

5

0

.

0

1

C

5

0

3

2

2

0

0

p

C5042200p

C5060.01

C519 470p

C520 470p

C5211

C5221

C

5

3

2

0

.

0

1

C

5

3

1

0

.

0

1

C5342200p

C5332200p

C5404700p

1000pC543

1C524

1C523

0.1C545

0.1C546

C527 470p

C528470p C530

330p

C529330p

2SC1740S-RTQ501

2SC1740S-RTQ502

1

2

3

4

5

6

7

8

8PCN501

9V

M-GND

SW

EH

VREF

LCH

COM

RCH

E

ET501

10V100

C50210V100

C501

50V1

C513

50V1C514

16V47C516

16V47C515

25V22C542

TP501

TP502

TP504

TP503

TP505

TP506

TP508

TP509

TP507

8 7 6 5

4321

G

N

D

V

C

C

8765

4 3 2 1

G

N

D

V

C

C

220R544

220R543

270R509

270R510

R506 12k

R50512k

R

5

0

7

2

7

0

k

R

5

0

8

2

7

0

k

TP510

TP511

TP512

TP513

TP514

TP515

TP516

TP517

1

0

0

p

C

5

0

9

1

0

0

p

C

5

1

0

1

0

0

0

p

C

5

4

8

TC BOARD

(CHASSIS)

BIAS OSCL501

PB-RCH

9

REC-RCH

1

REC-LCH

TP-STATE

PB-LCH

M-GND

A+9V

M+9V

A-GNDFFC502

7

D

B

6

F

53

G

1

C

E

84

A

2 9

TAPEMECHANISM

DECK

NJM4558M-TE2IC501

PB AMP

IC501

NJM4558M-TE2IC502

IC502REC AMP

OSCQ501, 502

S501(REC/PB)

PB

REC

(Page 36)



3232

R928

C902

C903

C904

C905

C907R983

R901

R937

R938

C901IC915

C916

C918

C917

R913

R915

X901

C909R919C910

C912

R981

R985

C908

R922

C913

R934

R986

C915

C906

C922

C921

R977R978R979R932

R982

R984

R976

CN907

CN901

CN903

EP901

(CHASSIS)

RB922 RB921

IC921

RB92

4RB

923

R975R974

R973R972

R971R970

R902

R941

R943 R9

04

R944

R905

R906

R903

R942

R907C930

FB902

D901

FB901D903 D904

R917

R916

D902

C920

R925

R926

R924R923

C914R920

R921

R945

R933

R947

R949

JR90

2

IC901

C919

K MAIN BOARDCN420

USB BOARD (COMPONENT SIDE)

1-872-405-

13

(13) 1-872-405-

13

(13)

USB BOARD (CONDUCTOR SIDE)

K

K

A/KA

A K A

A/K A

K

M 5V REG BOARDNO050

3 1

4 5

A

B

C

D

1 2 3 4 5 6 7 8 9 10

14

21

N USB CONNECTOR BOARDNO1001

7-10. PRINTED WIRING BOARD - USB Board - See page 27 for Circuit Boards Location. : Uses unleaded solder.

Ref. No. Location

Semiconductor Location

D901 C-9 D902 C-10 D903 C-9 D904 C-10

IC901 B-8 IC915 B-1 IC921 B-7

(Page 34)

(Page 35)

(Page 46)



3333

M5V REGBOARDNO050

NUSB

BOARDCONNECTOR

NO1001

KMAIN

BOARD(4/4)

CN420

11

R986 100DATA

R985 100CLOCK

C930

EP901

(CHASSIS)

0.33C9190.1

D903

D904

MAZ8068GMLS0

MAZ8068GMLS0

CLOCK

DATACLK

DATA

R970

R971

R972

R973

R974

R975

R976

R977

R979

R978

R932

R982

R984

RB922

RB921

RB923

RB924

C907

C906

C921

R90

1

C90

1

R93

7

R98

3

C90

2

JR90

2

C90

3

C922

R90

7

R90

6

R90

5

R90

4

R90

3

R90

2

R917

R91

5

R91

3

C90

8

R919

C909

R916

C910C912

R94

4

R94

3

R94

2

R94

1

C905C904

R933

R934

R938

C915

C913

C914

R981

R922

R924

R923

R921

IC921

R926

R925C920

IC915

C916

R920

CN907

CN903

CN901

FB902

FB901

D902

C917

R945

R947

IC901

R928

D901

X901

R949

100

100

100

100

100

100

100

100

100

100

100

100

100

47

47

47

47

0.1

0.1

0.1

10k

0.1

100

100

1016

V

0 1016

V

0.1

4.7k

4.7k

4.7k

4.7k

4.7k

4.7k

0

10k

100k

0.1

100

22p

0

22p10p

100k

100k

100k

100k

0.11016V

0

10k

100

0.1

0.1

0.1

100

100k

27

27

100k

IS61LV6416-10T

15k

15k0.33

C9180.33

R5523N001BTR-F

0.1

10k

21P

5P

2P

4.7k

4.7k

0

9MHz

4.7k

A1

3

A1

4

A1

5

D0

D1

D2

D3

D4

D5

D6

D7

RD

WRLB

UB

SR

AM

-CS

A8

A9

A10

D7

D4

D5

D6

WR

D0

D1

D2

D3

SRAM-CS

A11

A12

A13

A14

A15

LB

UB

RD

A7

A8

A9

A10

A11

A12

A4

A5

A6

D12

D13

D14

D15

A4

A5

A6

D8

D9

D10

D11

D12

D13

D14

D15

BU

S0

BU

S1

BU

S2

BU

S3

BU

CK

CC

E

USB-SI

USB-SO

DO

US

B-R

ST

LR

CK

BCK

REQ

ST-REQ

A-IN

GATE

LRCK

CCE

BUCK

BUS3

BUS2

BUS1

BUS0

DO

DI

USB-SO

USB-SI

BCK

A-IN

GATE

REQ

ST-REQ

USB-RST

DI

A7

A16

A1

6

A1

A2

A3

A1

A2

A3

D11

D10

D9

D8

EN

FLG

EN

FLG

MC2837

2206.3V

TMP92CD28AFG-7AC9

MC2837

D+

D-

AM0

DVSS

DVSS

RV

OU

T1

RV

IN

RV

IN

RV

OU

T2 DVSS

DVSS

DV

SS

AM

1

X2

DV

SS

X1

USB+5V

DVDD+3.3V

DVSS

LRCK

CCE

BUCK

BUS3

BUS2

BUS1

BUS0

USB-RST

ST-REQ

REQ

GATE

A-IN

BCK

GND

DI(CTS)

DO(RTS)

USB-SI(RXD)

USB-SO(TXD)

NC

A6

A5

A4

A3

NC

I/O8

I/O10

I/O11

VDD

GND

I/O12

I/O13

I/O14

I/O15

A2

A1

A0

I/O9

NC

A7

A8

A9

A10

I/O7

I/O6

I/O5

I/O4

GND

VDD

I/O3

I/O2

I/O1

I/O0

A11

A12

A13

A14

A15

WE

CELB

UB

OE

A1

3

GND

D+

D-

VBUS

EN

GND

OUT

INFLG

(USB)

S-RAM

VBUS POWER ON/OFF SWITCH

A12

A11

A10

A9

A8

DVCC

A7

A6

A5

A4

A3

A2

A1

A0

D15

D14

D13

D12

D11

D10

D9

D8

DVCC

D7

D6

D5

D4

D3

S2

D1

D0

DV

SS

DV

CC

DV

CC

DV

SS

NO

US

E

NO

US

E

NO

US

E

DV

CC

G-3

NO

US

E

NO

US

E

DI

G-2

G-1

ST-REQ

REQ

DVCC

GATE

DATA

BCK

SCL

SDA

NO USE

RXD1

TXD1

CLOCK

DATA

DO

NO USE

USBPON

USBOC

DVCC

BO

OT

NO

US

E

SR

LU

B

SR

LLB

RD

WR

CS

2

DV

CC

NO

US

E

/CC

E

/BU

CK

BU

S3

BU

S2

BU

S1

BU

S0

A1

6

A1

5

A1

4

USB CONTROLLER

LR

CK

/RE

SE

T

7-11. SCHEMATIC DIAGRAM - USB Board - See page 54 for Waveforms. See page 54 for IC Block Diagrams. See page 57 for IC Pin Function Description.

(Page 39)

(Page 47)

(Page 34)



3434

R

0

5

0

R

0

5

1

C

0

5

1

D

0

5

0

D

0

5

5

C

0

8

0

1 2 1

3 1

3

JW052NO050

CN055

C050

JW053

1

1

3

3

N

O

0

8

0

C

0

8

1

IC050

I

C

0

8

0

5V REG BOARD

M P

G

MAINBOARDNO458

USBBO

SERVICE manual for SONY MHC_GT222

Documents

Transcript of SERVICE manual for SONY MHC_GT222