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28

28

CDX-838

7-12. PRINTED WIRING BOARDS – DIGITAL OUT/JACK Boards –

•

See page 19 for Circuit Boards Location.

C904

FB901

1

13

CN903

C901

C902

B

MAIN BOARD

CN301

JACK BOARD

(COMPONENT SIDE)

JACK FLEXIBLE BOARD

1-664-796-

11

1-672-617-

12

(12)

05

1

4

CN902

C903

FB903

R901

IC901

6

8

3

2

1

7

5

4

5

4

8

7

6

2

1

3

CONTROL

(FOR SONY BUS)

L

R

AUDIO OUT

CN901

JACK BOARD

(CONDUCTOR SIDE)

1-672-617-

12

(12)

DIGITAL OUT BOARD

(COMPONENT SIDE)

1-672-618-

12

(12)

4

1

CN801

R801

C801

DIGITAL OUT BOARD

(CONDUCTOR SIDE)

1-672-618-

12

(12)

1

2

3

4

DIGITAL

OUT

IC801

SW801

ANALOG

DIGITAL

(Page 22)

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Содержание CDX-838 - Compact Disc Changer System

Страница 1: ...OFILM SERVICE MANUAL COMPACT DISC CHANGER US Model Canadian Model E Model SPECIFICATIONS CDX 838 Model Name Using Similar Mechanism NEW CD Drive Mechanism Type MG 250D 137 Optical Pick up Name KSS 521A J2N ...

Страница 2: ...CTRICAL PARTS LIST 41 SECTION 1 SERVICING NOTES NOTES ON HANDLING THE OPTICAL PICK UP BLOCK OR BASE UNIT The laser diode in the optical pick up block may suffer electro static breakdown because of the potential difference generated by the charged electrostatic load etc on clothing and the human body During repair pay attention to electrostatic breakdown and also use the procedure in the printed ma...

Страница 3: ...3 SECTION 2 GENERAL This section is extracted from instruction manual ...

Страница 4: ...4 ...

Страница 5: ...5 ...

Страница 6: ... given SECTION 3 DISASSEMBLY 1 screw PTT2 6 6 2 screw BVTT2 6 6 3 cover upper T 1 screw PTT2 6 6 1 screw PTT2 6 6 1 screw PTT2 6 6 4 lever FL T 4 lever FL T 5 front panel T ass y 2 tension spring FL 2 tension spring FL 1 two dampers 250 1 two dampers 250 3 jack flexible board CN903 4 mechanism deck MG 250D 137 firament tape ...

Страница 7: ...t board 5 connector CN801 2 connector CN902 Remove the jack board in the direction of the arrow 1 ground point screw PTT2 6 6 1 main flexible board CNJ12 6 three screws FP 7 main board 2 Break the soldering of motor M104 lead 3 screw PTT2 4 4 heat sink 5 two precision screws P1 7 2 5 ...

Страница 8: ...TT2 3 2 bracket EVM 3 elevator motor ass y M104 2 Remove the claw in the direction of the arrow A 4 Remove the ditch in the direction of the arrow B A B 5 Remove the escutcheon T in the direction of the arrow C 4 ditch 3 claw C 3 two claws 1 screw M2 3 ...

Страница 9: ...ASS Y CHASSIS ASS Y 1 three screws PTT2 4 1 two screws PTT2 4 2 4 Remove the case upper ass y in the direction of the arrow B 3 Remove the edge in the direction of the arrow A 1 screw PTT2 4 A B 2 chassis ass y 1 1 ...

Страница 10: ...board CNJ11 2 Break the soldering of motor M102 lead 6 Break the soldering of lead 1 two screws ESCUTCHEON 4 Turn at the direction of the arrow then remove shaft sled ass y 2 sled motor ass y M102 3 optical pick up KSS 521A J2N RF BOARD SLED MOTOR ASS Y M102 OPTICAL PICK UP KSS 521A J2N ...

Страница 11: ...ews P1 7 2 2 7 3 spring chucking 6 retainer disc 4 screw P2 2 2 5 bracket CP 9 Remove the spindle motor ass y M101 in the direction of the arrow 2 SW board 1 screw P2 2 2 1 Break the soldering of motor M103 lead 2 two screws P2 2 5 4 chucking motor ass y M103 3 retainer CHM ...

Страница 12: ...e the chuck plate is moved down to the lower limit A B 4 stop ring 2 0 E type 5 tension spring DH 2 washer 2 5 3 optical pick up complete ass y Note Insert the shaft A first shaft A gear LOAD 2 gear LOMINI marking Fig A chuck plate 2 Attach the gear LOMINI at the position shown in Fig A shaft rotary prevention C 1 Move the lever LOCK 3 fully in direction B to move the chuck plate up B 4 stop ring ...

Страница 13: ... moves in direction C to move down the chuck plate if the gear LOAD CAM is rotated in direction A or the chuck plate moves up and the slider moves in direction D if the gear is rotated in direction B chuck plate slider gear LOAD CAM ass y A B C D ...

Страница 14: ...s 5 and 6 as shown below adjust the following 5 Press repeatedly the DISC and buttons on the master unit so that the elevator shaft moves from address 6 to address 5 or from 5 to 6 At this time adjust RV201 on the main board so that the elevator shaft positions smoothly between comb teeth A and B 6 Further place the set horizontally and make same adjustment as mentioned above 7 After adjustment at...

Страница 15: ... 1 Connect the oscilloscope to TP RF and TP VC on the RF board 2 Put the set into play mode by loading the disc 3 Confirm that oscilloscope waveform is clear and check RF sig nal level is correct or not Note Clear RF signal waveform means that the shape can be clearly distin guished at the center of the waveform TRACKING OFFSET CHECK RF BOARD Conductor Side Procedure 1 Connect the oscilloscope to ...

Страница 16: ...D1 PD1 I V AMP RFO RF 46 ASYI 47 ASYO FOK DATO CLKO XLTO SEIN CNIN C OUT FOK SUBQ SCLK SENS CD DATA CD CLK CD XLT SCOR MON MDP MDS 29 LOCK 64 SQSO SQCK SENS DATA CLOCK XLAT SCOR SBSO EXCK GFS GTOP WFCK EMPH C4M XRST RFI FOK DATA CLK SENS1 26 SENS2 C OUT XLT LOCK XRST PD2 I V AMP PD2 TTL IIL FEO TEO PD FEI FEO TAO TEI TTL IIL TTL IIL FOCUS ERROR AMP RF SUMMING AMP TRACKING ERROR AMP TRACKING PHASE ...

Страница 17: ...ERFACE DE EMPHASIS CONTROL CPU INTERFACE CLOCK OSC DIVIDER CLOCK BUFFER IC603 MUTING CONTROL SWITCH Q601 602 LOW PASS FILTER IC602 1 2 MUTING Q603 LOW PASS FILTER IC602 2 2 PWM INTER POLATOR Σ MODULATOR DATA D OUT BCK LRCK DATA BCK LRCK D RAM CONTROLLER IC401 DIGITAL OUT BUFFER IC604 Page 16 D SCLK IC503 SBSO Page 16 E Page 16 G SCOR Page 16 F DATA CLOCK Page 16 H Page 16 Page 16 C C16M Page 16 I ...

Страница 18: ...Page 17 J BU CHECK Page 17 LEVEL SHIFT D307 BATTERY CHECK Q301 302 D308 D306 9V REGULATOR IC303 REFERENCE VOLTAGE SWITCH Q201 ELEVATOR HEIGHT ADDRESS ADJUSTMENT D309 SERVO 9V D311 12 1 4 11 9 6 10 M 1 7 4 5 70 58 ELV R ELV F ELEVATOR MOTOR DRIVE EEPROM IC202 ELEVATOR MOTOR DRIVE IC301 FIN RIN 5 6 12 11 EE DATA EE CLK SDA SCL OUT1 OUT2 M104 ELEVATOR ELV ON MCK RV201 ELEVATOR HEIGHT SENSOR RV202 38 ...

Страница 19: ...tors are in Ω and 1 4 W or less unless otherwise specified f internal component C panel designation U B Line H adjustment for repair Power voltage is dc 14 4V and fed with regulated dc power supply from CD changer controller Voltages and waveforms are dc with respect to ground under no signal conditions no mark CD PLAY Impossible to measure Voltages are taken with a VOM Input impedance 10 MΩ Volta...

Страница 20: ...5 C37 R46 C36 R44 IC11 C43 C17 C16 C14 R25 R18 R26 C15 R17 R59 C53 R50 C42 C41 R55 R49 R27 C32 C30 C27 C33 R38 R36 R35 R48 R14 R11 R22 R16 C40 R28 C23 R33 R12 R13 B C E C13 CNJ11 Q11 1 676 014 11 11 RF BOARD CONDUCTOR SIDE IC51 CNJ12 SW1 LIMIT SW BOARD 1 664 104 11 11 M101 SPINDLE A MAIN BOARD OPTICAL PICK UP BLOCK KSS 521A OP FLEXIBLE BOARD 1 664 626 11 SW11 CHUCKING END DETECT SW12 SAVE END DETE...

Страница 21: ...r IC Block Diagrams The components identified by mark 0 or dotted line with mark 0 are critical for safety Replace only with part number specified Les composants identifiés par une marque 0 sont critiques pour la sécurité Ne les remplacer que par une piéce portant le numéro spécifié Page 24 ...

Страница 22: ... R602 R601 FB602 R616 IC603 4 5 1 3 X601 C112 C101 C108 C110 R111 C114 C113 R114 K A D313 L601 C405 C205 C203 R206 C204 R205 R208 R202 R203 R204 R201 C401 C404 C304 C305 R301 K A A K D302 D303 D304 D301 D305 C303 R210 R211 R212 E C B E C B Q602 Q601 D306 R219 R213 R214 R215 C202 C201 R207 R505 K A D501 C501 R305 R304 C307 C311 C308 R311 A K D310 K A D312 C320 C315 C301 C302 D314 R316 R312 K A D308...

Страница 23: ...C318 C317 C314 C316 C309 Q303 Q305 SW301 Z 05 MAIN BOARD CONDUCTOR SIDE 1 672 616 12 12 1 2 3 4 5 6 7 8 9 10 11 A B C D E F G H I J CHASSIS C503 C310 IC303 IC305 4 1 1 3 7 8 PRINTED WIRING BOARD MAIN Board Conductor Side See page 19 for Circuit Boards Location IC303 G 10 IC305 E 10 Q303 F 9 Q305 D 10 Semiconductor Location Conductor Side Ref No Location ...

Страница 24: ...24 24 CDX 838 7 9 SCHEMATIC DIAGRAM MAIN Board 1 3 See page 27 for Waveforms See page 30 for IC Block Diagrams ELEVATOR HEIGHT ADDRESS ADJUSTMENT Page 21 Page 26 Page 25 ...

Страница 25: ...25 25 CDX 838 7 10 SCHEMATIC DIAGRAM MAIN Board 2 3 See page 27 for Waveforms See page 31 for IC Block Diagrams Page 24 Page 26 Page 29 ...

Страница 26: ...26 26 CDX 838 7 11 SCHEMATIC DIAGRAM MAIN Board 3 3 See page 27 for Waveforms See page 31 for IC Block Diagrams Page 24 Page 25 ...

Страница 27: ... IC201 ea EXTAL 6 IC101 ys RFCK 5 7 Vp p 137 µs 6 6 Vp p 236 ns 5 5 Vp p 137 µs 3 3 Vp p 59 2 ns 3 2 Vp p 125 ns 2 5 Vp p 7 6 µs MAIN Board 2 3 qa IC603 4 qs IC601 4 XTO qd IC601 7 BCK qf IC601 9 LRCK 4 7 Vp p 59 2 ns 6 4 Vp p 59 2 ns 7 4 Vp p 472 ns 7 4 Vp p 22 7 µs MAIN Board 3 3 qg IC401 ql LRCK qh IC401 qj BCK qj IC401 qd WDCI qk IC401 qs LRCI ql IC401 9 BCKI wa IC401 5 C4M ws IC401 3 IC501uj ...

Страница 28: ... SIDE JACK FLEXIBLE BOARD 1 664 796 11 1 672 617 12 12 05 1 4 CN902 C903 FB903 R901 IC901 6 8 3 2 1 7 5 4 5 4 8 7 6 2 1 3 CONTROL FOR SONY BUS L R AUDIO OUT CN901 JACK BOARD CONDUCTOR SIDE 1 672 617 12 12 DIGITAL OUT BOARD COMPONENT SIDE 1 672 618 12 12 4 1 CN801 R801 C801 DIGITAL OUT BOARD CONDUCTOR SIDE 1 672 618 12 12 1 2 3 4 DIGITAL OUT IC801 SW801 ANALOG DIGITAL Page 22 ...

Страница 29: ...29 29 CDX 838 7 13 SCHEMATIC DIAGRAM DIGITAL OUT JACK Boards Page 25 ...

Страница 30: ...BAL1 BAL4 TM6 TM2 VCC VEE TM5 11 12 13 TG2 TM4 VCC VEE TM3 FS1 VCC VEE TOG1 TOG4 TM7 FS4 DFCT 1 2 3 4 OUT1 VM VCC FIN 8 7 6 5 GND OUT2 VREF RIN CONTROL LOGIC TSD POWER SAVE DRIVER DRIVER MAIN Board IC101 CXD2530Q 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 43 42 41 40 39 38 37 36 35 34 33 32 31 50 49 48 47 46 45 44 88 89 90 91 92 93 94 95 96 97 98 99 100 81 82 ...

Страница 31: ...TA IN BUS RESET BUS DATA VREF BUS CLK GND BUS ON IN BUS ON OUT RESET RESET SWITCH VWA ADDRESS MONITOR WRITE BASE COUNTER READ BASE COUNTER CPU I F SELECTOR TIMING GEN DSP I F DATA LINKING CONTROL DAC I F DIGITAL OUT 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 56 55 54 53 52 51 50 49 48 47 57 58 59 60 61 62 63 64 X...

Страница 32: ...A6 A5 A4 MEMORY MATRIX 512X512 ROW DECODER BUFFER 1 A14 2 3 4 5 A5 A12 A7 A6 26 A13 25 A8 24 23 A11 A9 I O GATE COLUMN DECODER BUFFER 6 A4 7 8 9 10 A0 A3 A2 A1 27 28 VCC WE 22 OE 21 A10 BUFFER 18 I O7 17 I O6 16 I O4 I O5 19 I O8 15 I O BUFFER 11 12 13 I O3 I O1 I O2 20 CE 14 GND LEVEL SHIFT LEVEL SHIFT LEVEL SHIFT CTF SCF CLOCK OSC DIVIDER Σ MODULATOR SERIAL INPUT INTERFACE 8 INTERPOLATOR DE EMPH...

Страница 33: ...gnal output to the CXD2522Q IC401 L reset 26 XQOK O Subcode Q OK pulse signal output to the CXD2522Q IC401 L active 27 SDTI I ESP status signal input from the CXD2522Q IC401 28 XSOE O ESP status read enable signal output to the CXD2522Q IC401 L active 29 ESPXLT O ESP latch pulse signal output to the CXD2522Q IC401 L active 30 RST I System reset signal input from the SONY bus interface IC302 and re...

Страница 34: ... I Eject switch SW301 input terminal H active 65 CD CLK O Serial data transfer clock signal output to the CXD2530Q IC101 and CXD2522Q IC401 66 CD XLT O Serial data latch pulse signal output to the CXD2530Q IC101 67 CD DATA O Serial data output to the CXD2530Q IC101 and CXD2522Q IC401 68 CD ON O D A converter and servo section power supply on off control signal output H power on 69 ELV ON O Mechani...

Страница 35: ...2 and reset signal generator IC304 L reset For several hundreds msec after the power supply rises L is input then it changes to H 29 EXTAL I System clock input terminal 10 MHz 30 XTAL O System clock output terminal 10 MHz 31 VSS Ground terminal 32 to 55 NC O Not used open 56 BUSY O Busy signal output to the system controller IC201 L busy status 57 to 61 NC O Not used open 62 CE O Chip enable signa...

Страница 36: ...k 5 7 13 14 19 27 13 12 15 22 8 10 9 11 12 6 4 3 1 26 25 24 21 21 2 1 20 28 29 18 17 2 2 3 2 2 1 not supplied not supplied not supplied 13 MG 250D 137 19 23 1 3 022 011 01 DAMPER 250 2 3 040 799 01 COVER LOWER T 3 1 664 796 11 JACK FLEXIBLE BOARD 4 1 672 617 12 JACK BOARD 5 X 3378 096 1 DOOR T ASSY US Canadian 5 X 3378 424 1 DOOR T ASSY E 6 3 376 464 11 SCREW PTT 2 6X6 GROUND POINT 7 3 030 490 51 ...

Страница 37: ...art No Description Remark Ref No Part No Description Remark 2 MECHANISM DECK SECTION 1 MG 250D 137 3 3 3 51 52 54 51 X 3375 497 1 CHASSIS U SUB ASSY 52 3 024 161 01 SPRING SUT 54 3 011 997 01 SPRING STOPPER LOWER ...

Страница 38: ...D 137 Ref No Part No Description Remark Ref No Part No Description Remark 102 101 103 M104 12 101 3 024 170 01 SPRING SB TENSION 102 3 024 172 01 BRACKET EVM 103 X 3378 136 1 CHASSIS D D SUB ASSY M104 A 3301 123 A ELJ MOTOR ASSY ELEVATOR ...

Страница 39: ...HM D ASSY 153 3 010 270 01 COVER CHM 154 3 321 813 01 WASHER COTTER POLYETHYLENE 155 3 017 139 01 GEAR NWL 156 3 010 255 01 ARM NSW 157 3 573 936 00 STOPPER REEL 158 X 3373 552 1 GEAR LOAD CAM ASSY 159 3 010 252 01 ROLLER CRE 160 3 010 268 01 SPRING DH TENSION 161 A 3290 194 I MAIN ASSY CHASSIS EVY 162 3 010 254 01 SHAFT ROTARY PREVENTION C 163 3 010 253 01 GEAR ML 166 A 3317 993 A RF BOARD COMPLE...

Страница 40: ...1 958 A SHAFT SLED ASSY 207 3 010 263 01 DETENT SHAFT THRUST 208 1 664 104 11 SW BOARD 209 A 3301 077 B BASE OPT J ASSY 210 1 664 626 11 OP FLEXIBLE BOARD 0211 8 820 010 06 OPTICAL PICK UP KSS 521A J2RP 212 3 010 262 01 DETENT SLED M101 A 3291 956 B MOTOR SUB ASSY SPINDLE M102 A 3291 955 A MOTOR SUB ASSY SLED The components identified by mark 0 or dotted line with mark 0 are critical for safety Re...

Страница 41: ...0 50V CONNECTOR CN901 1 779 077 71 PLUG CONNECTOR CONTROL ANALOG OUT CN902 1 770 621 21 PIN CONNECTOR 4P CN903 1 779 321 11 CONNECTOR FFC FPC 16P FERRITE BEAD FB901 1 500 445 21 FERRITE 0uH FB903 1 500 445 21 FERRITE 0uH IC IC901 1 532 686 21 LINK IC RESISTOR R901 1 216 295 00 SHORT 0 A 3326 237 A MAIN BOARD COMPLETE 1 676 339 11 MAIN FLEXIBLE BOARD 3 028 802 01 SPACER MOUNT 30 CAPACITOR C101 1 16...

Страница 42: ...48 DIODE 1SS319 TE85R D312 8 719 422 62 DIODE MA8062 L TX D313 8 719 210 33 DIODE EC10DS2 TE12L5 D314 8 719 975 40 DIODE RB411D T146 D501 8 719 988 61 DIODE 1SS355TE 17 D502 8 719 975 40 DIODE RB411D T146 FERRITE BEAD FB402 1 500 445 21 FERRITE 0uH FB403 1 500 445 21 FERRITE 0uH FB404 1 500 445 21 FERRITE 0uH FB601 1 500 445 21 FERRITE 0uH FB602 1 500 445 21 FERRITE 0uH FB603 1 500 445 21 FERRITE ...

Страница 43: ...CHIP 270 5 1 10W R616 1 216 121 00 RES CHIP 1M 5 1 10W VARIABLE RESISTOR RV201 1 223 834 11 RES ADJ CARBON 47K RV201 1 225 951 21 RES VAR SLIDE 10K ELEVATOR HEIGHT SENSOR SWITCH SW201 1 771 540 11 SWITCH PUSH 1 KEY MAGAZINE DETECT SW202 1 771 540 11 SWITCH PUSH 1 KEY MAGAZINE IN OUT DETECT SW301 1 571 532 21 SWITCH TACTIL Z VIBRATOR X201 1 767 261 21 VIBRATOR CERAMIC 8MHz X501 1 767 510 11 VIBRATO...

Страница 44: ...846 11 METAL CHIP 120K 5 1 16W R45 1 216 837 11 METAL CHIP 22K 5 1 16W R46 1 216 847 11 METAL CHIP 150K 5 1 16W R47 1 216 834 11 METAL CHIP 12K 5 1 16W R48 1 216 845 11 METAL CHIP 100K 5 1 16W R49 1 216 093 11 RES CHIP 68K 5 1 10W R50 1 216 841 11 METAL CHIP 47K 5 1 16W R51 1 216 073 00 METAL CHIP 10K 5 1 10W R52 1 216 093 11 RES CHIP 68K 5 1 10W R53 1 216 073 00 METAL CHIP 10K 5 1 10W R54 1 216 0...

Страница 45: ...CH SPANISH CHINESE A 3291 950 C MAGAZINE 250T ASSY PARTS FOR INSTALLATION AND CONNECTIONS 501 3 040 583 21 BRACKET 502 X 3369 824 1 SCREW ASSY 503 1 590 519 21 CORD WITH CONNECTOR BUS CABLE 5 5m 504 1 790 455 21 CORD CONNECTION RCA PIN CORD 5 5m 501 502 BRACKET 2 PSW 4 10 4 TAPPING SCREW DIA 5 20 4 503 RCA PIN CORD 5 5 m 1 BUS CABLE 5 5 m 1 504 ...

Страница 46: ...46 CDX 838 Sony Corporation Mobile Electronics Division Company 9 870 026 11 99L057035 1 Printed in Singapore C 1999 12 Published by General Engineering Dept ...

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