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Sony CDX-GT121, Service Manual

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Sony CDX-GT121 Service Manual Download Page 8

8

CDX-GT121/GT220/GT222

3-2. CD MECHANISM BLOCK

Note:

 Follow the disassembly procedure in the numerical order given.

3-1. SUB PANEL ASSY

2

two claws

3

two claws

4

 sub panel assy 

1

 two screws

     (+PTT 2.6

 

×

 6)

4

CNP301

3

1

screw
(+PTT 2.6

 

×

 6)

2

screw
(+PTT 2.6

 

×

 6)

5

two screws
(+PTT 2.6

 

×

 4)

6

bracket (CD)

7

CD mechanism block

Summary of Contents for CDX-GT121

Page 1: ...9 kHz Antenna aerial terminal External antenna aerial connector Intermediate frequency 10 7 MHz 450 kHz Sensitivity MW 30 µV LW 40 µV Power amplifier section Outputs Speaker outputs sure seal connectors Speaker impedance 4 8 ohms Maximum power output 45 W 4 at 4 ohms General Output Audio outputs terminal sub rear switchable Power antenna aerial relay control terminal Power amplifier control termin...

Page 2: ...e lens in the optical pick up block Therefore when checking the laser diode emission observe from more than 30 cm away from the objective lens If the optical pick up block is defective please replace the whole optical pick up block Never turn the semi fixed resistor located at the side of optical pick up block SERVICE NOTES CAUTION Use of controls or adjustments or performance of procedures other ...

Page 3: ...D Playback You can play CD DA also containing CD TEXT and CD R CD RW MP3 WMA files Type of discs Label on the disc CD DA MP3 WMA CDX GT220 GT222 only TABLE OF CONTENTS 1 SERVICE NOTE 4 2 GENERAL Location of Controls 5 Connections 5 3 DISASSEMBLY 3 1 Sub Panel Assy 8 3 2 CD Mechanism Block 8 3 3 Main Board 9 3 4 Servo Board 9 3 5 Chassis T Sub Assy 10 3 6 Roller Arm Assy 10 3 7 Chassis OP Assy 11 3...

Page 4: ...board CN2 with the extension cable Part No J 2502 076 1 NOTE FOR REPLACEMENT OF THE SERVO BOARD When repairing the complete SERVO board A 1177 201 A should be replaced since any parts in the SERVO board cannot be repaired NOTE FOR REPLACEMENT OF THE AUX JACK J901 To replace the AUX jack requires alignment 1 Insert the AUX jack into the KEY board 2 Place the KEY board on the front panel 3 Solder th...

Page 5: ...anel release button page 4 J DSPL display SCRL scroll button CDX GT225C GT222 GT220 page 8 To change display items press scroll the display item press and hold DSPL display button CDX GT121 page 8 To change display items K SEEK buttons CD To skip tracks press skip tracks continuously press then press again within about 1 second and hold reverse fast forward a track press and hold Radio To tune in ...

Page 6: ...Remarques sur les câbles de commande et d alimentation Le câble de commande d antenne bleu fournit du courant continu de 12 V lorsque vous mettez le tuner sous tension ou lorsque vous activez la fonction AF fréquence alternative ou TA messages de radioguidage Lorsque votre voiture est ÈquipÈe d une antenne FM MW GO LW PO intégrée dans la vitre arrière latérale raccordez le câble de commande d ante...

Page 7: ... 1 SUB PANEL ASSY Page 8 3 2 CD MECHANISM BLOCK Page 8 SET 3 3 MAIN BOARD Page 9 3 5 CHASSIS T SUB ASSY Page 10 3 6 ROLLER ARM ASSY Page 10 3 7 CHASSIS OP ASSY Page 11 3 8 CHUCKING ARM SUB ASSY Page 11 3 9 SLED MOTOR ASSY Page 12 3 10 OPTICAL PICK UP SECTION Page 13 3 11 OPTICAL PICK UP Page 13 3 4 SERVO BOARD Page 9 ...

Page 8: ...te Follow the disassembly procedure in the numerical order given 3 1 SUB PANEL ASSY 2 two claws 3 two claws 4 sub panel assy 1 two screws PTT 2 6 6 4 CNP301 3 1 screw PTT 2 6 6 2 screw PTT 2 6 6 5 two screws PTT 2 6 4 6 bracket CD 7 CD mechanism block ...

Page 9: ...round point screws PTT 2 6 6 7 screw PTT 2 6 10 8 heat sink 4 two screws P 2 6 8 6 screw P 2 6 10 5 two screws PTT 2 6 10 5 SERVO board SERVO board claw claw 3 toothed lock screw M 1 7 2 5 2 toothed lock screw M 1 7 2 5 1 Remove the eleven solders GRY YEL BLE ORG RED BLK RED WHT BLK RED WHT 4 optical pick up 16 core CN1 ...

Page 10: ... GT220 GT222 3 6 ROLLER ARM ASSY 3 5 CHASSIS T SUB ASSY 4 chassis T sub assy 3 claw 1 two precision screws P 1 7 2 2 2 two precision screws P 1 7 2 2 3 washer 4 gear RA1 5 roller arm assy 1 spring RAL 2 spring RAR ...

Page 11: ... spring damper blue 6 chassis OP assy 5 1 tension spring KF 2 gear LE1 3 lever D 4 slider R 3 8 CHUCKING ARM SUB ASSY 3 chucking arm sub assy 2 1 spring Note Have this portion receive the chassis Note Have this portion receive the chassis Note Be careful not to touch the turn table ...

Page 12: ...stand turn table 2 three serration screws M 2 3 three serration screws M 2 3 Note Place the stand with care not to touch the turn table Note Never remove these parts since they were adjusted Note for Assembly Note Take care to prevent the chassis from being bent when tightening the three machine screws ...

Page 13: ...ection There is space at the end of the leaf spring sub guide to avoid contact with the slide 1 pan tapping screw M 1 4 2 5 2 leaf spring sub guide 3 leaf spring OP 5 optical pick up 4 lead screw assy Notes for Assembly Prevent the end of the leaf spring sub guide from being in contact with the OP slide base Prevent the end of the leaf spring sub guide from being in contact with the OP slide base ...

Page 14: ...ring the number of connected units display mode 4 4 Operating hours display mode Reset count display OFFSET FAILURE error display CD error information display Operating hours display Number of connected units display Reset count by watchdog timer display 0 1 X X 0 2 X X 0 3 1 X X X 0 4 X X X X 0 5 1 X X 0 6 1 X X X X X Reset count in hexadecimal format Diag code 01 Reset count 0 1 X X Reset count ...

Page 15: ...ror info history 3 Disc type plus operating hours display CD error info history 3 Error description plus error details display CD error info history 2 Disc type plus operating hours display CD error info history 2 Error description plus error details display CD error info history 1 latest Disc type plus operating hours display 0 5 1 X X X X X 0 5 2 X X 0 5 2 X X X X X 0 5 3 X X 0 5 3 X X X X X 0 5...

Page 16: ...16 CDX GT121 GT220 GT222 MEMO ...

Page 17: ...3V TU 5V B U 3 3V 12 TU ATT 25 EEP_CKO 24 EEP_SIO 56 DAVN L CH R CH J901 AUX 5 3 OUT FL OUT FL 9 7 OUT RL OUT RL 27 R CH ANT REM 35 VP 20 VP1 6 VP2 30 AUDIO 8 3V 31 33 SERVO 3 3V MECHA 6V 34 PANEL B TU 5V 26 24 OUT FR OUT RR R CH R CH 21 22 SUBOUT L SUBOUT R 28 MUTE 4 SCL AUDIO 8 3V SERVO 3 3V MECHA 6V PANEL B 2 SDA 16 BEEP 22 STB 25 DIAG AUDIO 8 3V 7 10 12 11 16 1 9 2 4 3 6 29 30 SCL SDA I2C SCL ...

Page 18: ...ons may be noted due to normal production tolerances Circled numbers refer to waveforms Signal path J CD PLAY F FM f MW LW L AUX Caution Pattern face side Parts on the pattern face side seen from the Side B pattern face are indicated Parts face side Parts on the parts face side seen from the Side A parts face are indicated Q C These are omitted E B E These are omitted C B C These are omitted B E K...

Page 19: ...R151 R152 L151 C618 C454 C464 R413 R414 C750 Q1 Q471 R471 Q481 Q441 Q451 Q461 R572 R575 D479 D503 R542 R547 JC510 C550 R631 C601 TU1 X51 X502 X501 D757 D760 RED D601 D758 D754 D755 D756 D762 L601 CNP301 CN601 X501 D753 D752 D751 CN701 JW63 JW62 JW119 JW86 JW67 JW60 JW89 JW102 JW22 JW42 JW3 RED JW65 JW82 JW53 JW51 JW52 JW94 JW93 JW18 JW111 JW133 JW54 JW24 JW23 JW25 JW39 JW1 JW2 JW31 JW26 JW9 JW17 J...

Page 20: ...R471 R482 R472 R431 R441 R413 R414 X51 C57 C58 C59 C60 C62 R51 R59 R60 R61 R29 R6 R7 R52 C63 C64 R54 C3 C7 C12 C2 C1 C5 R5 C53 C54 C55 C56 C51 C404 C405 C407 C401 C412 J1 Q1 Q22 Q51 Q451 Q461 Q481 Q471 TU1 R2 R3 R12 R13 FB1 D1 R53 IC51 R56 R57 IC401 Q431 Q441 J330 R412 5 4 SCHEMATIC DIAGRAM MAIN SECTION 1 4 Refer to page 18 for Waveforms Refer to page 26 for IC Block Diagrams Page 22 Page 21 Page ...

Page 21: ... D C479 C602 C618 C617 C432 C452 C442 C462 C755 C751 JC753 C771 C769 C764 C765 C750 JC754 JC755 C775 C774 C435 C455 C445 C465 JW111 C601 R479 C753 R752 C758 C754 R652 C756 Q478 Q479 R651 D601 C776 CN601 FU601 C763 C770 D479 D751 D752 D753 D754 D755 D756 D757 D758 D759 D760 D761 D762 D651 D617 L601 R609 IC750 Page 20 Page 23 Page 22 ...

Page 22: ...47 R756 R503 R502 R533 R531 R517 R519 R566 R539 R675 R676 R677 R524 R526 R575 R692 R693 R535 R536 R564 C305 C308 C302 C301 R528 R559 JC533 R572 R527 C511 R509 R573 R537 R694 C503 R512 R511 C512 R567 C514 R561 R543 JC504 C523 R663 R661 R522 R521 R662 R664 Q664 R302 R301 CNP301 X501 D510 X502 IC501 D512 R529 R672 D502 D503 5 6 SCHEMATIC DIAGRAM MAIN SECTION 3 4 Refer to page 18 for Waveforms Refer t...

Page 23: ...SECTION 4 4 R633 R632 R631 R634 R583 R582 C623 JW53 CN701 R153 R151 R152 C155 C154 R155 JW140 C622 JW52 R584 C631 C519 R601 C151 C152 C153 R540 R541 JC681 R654 R653 Q582 R585 Q581 L151 R154 IC602 Q631 Q651 Q580 FB604 D580 D581 D704 D153 D609 D719 Page 20 Page 21 Page 22 Page 25 ...

Page 24: ...8 R944 R905 R946 LCD901 R945 R902 R901 IC971 1 2 4 3 LSW910 LSW909 LSW908 LSW907 LSW906 LSW905 LSW903 LSW902 LSW902 DSPL GT220 GT222 GT121 SOURCE LED944 S903 LSW904 LSW901 S904 LED941 LSW911 LED931 LCD BACK LIGHT C985 R979 R978 R977 R982 C986 R974 GT220 GT222 GT220 GT222 C983 D982 C984 R986 R985 R984 D981 R981 R987 C981 FB903 D993 R933 R931 R932 R903 Q932 R972 R904 R907 R947 R908 R909 D998 R913 R9...

Page 25: ...04 1 2 S904 LSW905 1 2 LSW906 1 2 LSW907 1 2 LSW908 1 2 LSW909 1 2 LSW910 1 2 LSW911 1 2 LSW901 2 2 LSW902 2 2 LSW904 2 2 LSW905 2 2 LSW906 2 2 LSW907 2 2 LSW908 2 2 LSW909 2 2 LSW911 2 2 LSW910 2 2 LSW903 2 2 J901 R934 D998 R992 Q931 LED942 LED941 R941 R942 LED943 LED931 R944 R943 R946 LED945 LED944 R945 R947 R948 R949 R950 R952 R951 R953 R954 R972 LED953 LED952 LED951 R971 R975 IC971 C971 D982 I...

Page 26: ...NEL B CBU FL RL RR VP FR I2 C BUS 1 2 BUS L 100k 100k 100k 100k 100k 100k 250k 250k 250k BUS R TU L 3 4 TU R 5 CD L 6 CD R 7 AUX L 8 AUX G 9 AUX R 10 DS32 11 DS11 12 DS22 13 EBIAS 14 DS21 15 DS11 16 DS31 26 OUTF1 27 VCC VCC VCC2 28 MUTE 29 SCL 30 SDA 31 GND 32 FIL INPUT SELECTOR VOLUME1 MUTE VOLUME2 I2C BUS LOGIC TREBLE BASS MIDDLE SPECTRUM ANALYZER FADER 25 OUTF2 24 OUT R1 23 OUT R2 FADER FADER 2...

Page 27: ...SO O Serial data signal output to LCD driver 29 LCD_CKO O Serial clock signal output to LCD driver 30 RDS ON O RDS radio data system ON signal output 31 RE IN0 I Rotary encoder signal input 0 32 RE IN1 I Rotary encoder signal input 1 33 I2C_CKO O I2C bus serial clock signal output 34 I2C_SIO I O I2C bus serial data signal input output 35 DAVDD A D converter power supply pin 3 3V 36 AVRH A D conver...

Page 28: ...68 kHz 81 VSS1 Ground pin 82 OSCIN I High speed operation clock signal input 18 432 MHz 83 OSCOUT O High speed operation clock signal output 18 432 MHz 84 VCC3 Power supply pin 3 3 V 85 DEMOSEL I DEMO select signal input H DEMO on L DEMO off 86 ATT O Audio mute control signal output 87 BUSON O BUS ON signal output 88 SYSRST O System reset signal output 89 to 92 NCO O Not used Open 93 Z MUTE I CD z...

Page 29: ... Ref No Part No Description Remark Ref No Part No Description Remark NOTE The mechanical parts with no reference number in the exploded views are not supplied Items marked are not stocked since they are seldom required for routine service Some delay should be anticipated when ordering these items XX and X mean standardized parts so they may have some difference from the original one Color Indicati...

Page 30: ...SY GT121 56 2 639 881 01 SPRING RELEASE 57 1 780 533 21 CONDUCTIVE BOARD CONNECTION 58 3 214 259 11 ILLUMINATOR LCD 59 3 214 246 01 PANEL BACK 60 3 250 543 21 SCREW B P TITE M2 61 X 2149 228 2 CASE ASSY for FRONT PANEL GT220 GT222 J901 1 820 624 11 SMALL TYPE JACK VERTICAL AUX LCD901 1 802 511 11 DISPLAY PANEL LIQUID CRYSTAL RE901 1 479 902 21 ENCODER ROTARY PUSH SELECT VOLUME Ref No Part No Descr...

Page 31: ... 106 3 352 758 31 SCREW M1 7X2 5 TOOTHED LOCK 107 A 1177 201 A SERVO BOARD COMPLETE 7 7 627 000 08 SCREW PRECISION P 1 7X2 2 TYPE 3 Ref No Part No Description Remark Ref No Part No Description Remark 6 3 CD MECHANISM SECTION MG 101TC 188 Q not supplied 7 7 not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied 101 102 103 1...

Page 32: ...12 SWITCH TACTILE WITH LED m SEEK LSW905 1 786 805 12 SWITCH TACTILE WITH LED AF TA PTY LSW906 1 786 805 12 SWITCH TACTILE WITH LED 1 GT121 LSW906 1 786 805 12 SWITCH TACTILE WITH LED 1 ALBUM GT220 GT222 LSW907 1 786 805 12 SWITCH TACTILE WITH LED 2 GT121 LSW907 1 786 805 12 SWITCH TACTILE WITH LED 2 ALBUM GT220 GT222 LSW908 1 786 805 12 SWITCH TACTILE WITH LED 3 REP LSW909 1 786 805 12 SWITCH TAC...

Page 33: ... SCREW PTT 2 6X10 S CAPACITOR C1 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V C2 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V C3 1 126 963 11 ELECT 4 7uF 20 50V C4 1 126 947 11 ELECT 47uF 20 35V C5 1 126 947 11 ELECT 47uF 20 35V C6 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C7 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C12 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C13 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C51 1...

Page 34: ...75 1 115 340 11 CERAMIC CHIP 0 22uF 10 25V C776 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V CONNECTOR CN601 1 774 701 21 PIN CONNECTOR 16P CN701 1 819 773 13 SOCKET CONNECTOR 15P CNP301 1 820 611 11 CONNECTOR BOARD TO BOARD 28P DIODE D1 6 501 734 01 DIODE MAZ8056GMLS0 D153 6 501 743 01 DIODE MAZ8068GMLS0 D479 8 719 988 61 DIODE 1SS355TE 17 D502 6 502 131 01 DIODE LRB751V 40T1G GT220 GT222 D503 8 719 ...

Page 35: ... METAL CHIP 220 5 1 10W R472 1 216 833 11 METAL CHIP 10K 5 1 10W R479 1 216 805 11 METAL CHIP 47 5 1 10W R481 1 216 813 11 METAL CHIP 220 5 1 10W R482 1 216 833 11 METAL CHIP 10K 5 1 10W R502 1 216 821 11 METAL CHIP 1K 5 1 10W R503 1 216 821 11 METAL CHIP 1K 5 1 10W R504 1 218 871 11 METAL CHIP 10K 0 5 1 10W R505 1 218 871 11 METAL CHIP 10K 0 5 1 10W R506 1 216 845 11 METAL CHIP 100K 5 1 10W R509 ...

Page 36: ...16 845 11 METAL CHIP 100K 5 1 10W GT220 GT222 R693 1 216 845 11 METAL CHIP 100K 5 1 10W GT121 R694 1 216 821 11 METAL CHIP 1K 5 1 10W R752 1 216 811 11 METAL CHIP 150 5 1 10W R756 1 216 841 11 METAL CHIP 47K 5 1 10W TUNER UNIT TU1 A 3220 961 B TUNER UNIT TUX 032 VIBRATOR X51 1 813 532 11 VIBRATOR CRYSTAL 8 664MHz X501 1 813 524 21 VIBRATOR CERAMIC 18 432MHz X502 1 767 317 11 VIBRATOR CRYSTAL 32 76...

Page 37: ...37 CDX GT121 GT220 GT222 MEMO ...

Page 38: ...REVISION HISTORY Clicking the version allows you to jump to the revised page Also clicking the version at the top of the revised page allows you to jump to the next revised page Ver Date Description of Revision 1 0 2007 08 New ...

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