Sony CD Walkman D-EG7 Service Manual Download Page 1

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Ver 1.0 1999.04

MICROFILM

D-EG5/EG5CK/EG7

SERVICE MANUAL

PORTABLE CD PLAYER

SPECIFICATIONS

US Model

D-EG7

Canadian Model

D-EG5/EG5CK/EG7

AEP Model

UK Model

E Model

Australian Model

D-EG7

Photo : D-EG7

Model Name Using Similar Mechanism

NEW

CD Mechanism Type

CDM-2911AAA

Optical Pick-up Type

DAX-11A2

US, Canadian model: 120 V, 60 Hz
AEP, French, German, East European,
E13 model:220 - 230 V, 50/60 Hz
UK model: 230 - 240 V, 50 Hz
Australian model: 240 V, 50 Hz

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Summary of Contents for CD Walkman D-EG7

Page 1: ...CK EG7 AEP Model UK Model E Model Australian Model D EG7 Photo D EG7 Model Name Using Similar Mechanism NEW CD Mechanism Type CDM 2911AAA Optical Pick up Type DAX 11A2 US Canadian model 120 V 60 Hz AEP French German East European E13 model 220 230 V 50 60 Hz UK model 230 240 V 50 Hz Australian model 240 V 50 Hz Continued on page 2 ...

Page 2: ...EWITH MARK 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 Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C during repairing Do not touch the soldering iron on the same conductor of the circuit board wi...

Page 3: ...re operable Method 1 In the service mode or normal operation Emission of the laser diode is visually checked 1 Open the upper lid 2 Push the S801 as shown in Fig 1 1 3 Check the object lens for confirming normal emission of the laser diode If not emitting there is a trouble in the automatic power control circuit or the optical pick up During normal operation the laser diode is turned ON about 2 5 ...

Page 4: ... 4 SECTION 2 GENERAL This section is extracted from instruction manual ...

Page 5: ...id ASSY Cabinet Front MD ASSY Set Spindle motor M902 Optical Pick up Sled motor M901 Main board Cabinet Rear Upper lid ASSY 3 1 OPEN 2 1 Screws B2x10 5 9 2 Screws B2 2 Screws B2 3 Screws B2 Cabinet Front Buckle ASSY Upper lid ASSY 1 Screws B2x10 8 Claws 7 Claws 6 Claws Cabinet Rear 4 OPEN r The equipment can be removed using the following procedure ...

Page 6: ... CN701 Blue 2 CN703 White CN501 1 Flexible board 5 Cabinet Rear 3 4 SPINDLE MOTOR M902 OPTICAL PICK UP SLED MOTOR M901 º 4 5 7 8 2 1 Screws B1 7 9 Screws P1 4x2 5 3 Screw B1 7x6 6 Screw Screw ASSY Feed Spring sled Optical pick up DAX 11A2 Spindle motor M902 Sled motor M901 Rack ...

Page 7: ...s activated tracking servo and sled servo are turned OFF so it can be turned ON by pressing the PLAY MODE key if required 3 By pressing the REPEAT ENTER key the tracking gain up mode becomes active 4 By pressing the key focus is turned ON from focus search ing while entering CLV S pull in mode Without disc focus searching is repeated continuously 5 By pressing the PLAY MODE key tracking servo sled...

Page 8: ...erform adjustments in the order given 3 Use the disc YEDS 18 Part No 3 702 101 01 unless other wise indicated 4 Power supply voltage requirement DC 4 5 V HOLD switch OFF VOLUME Minimum SOUND switch NORM AVLS switch OFF Before Beginning Adjustment Set the equipment to service mode See page 7 and check the fol lowing If there in an error repair the equipment Checking of the sled motor 1 Open the upp...

Page 9: ...e waveform during 100 track jump Brake application is smooth because of adjustment Fig 5 3 Waveform when no traverse waveform during 100 track jump Brake application is poor because of adjustment Fig 5 4 0V 0V 0V 100 track jump waveform 0V 100 track jump waveform traverse waveform Focus Tracking Gain Adjustment A servo analyzer is necessary in order to perform this adjustment exactly However this ...

Page 10: ... 10 Adjustment Location MAIN BOARD Side A RV503 Focus Gain Adjustment RV502 Tracking Gain Adjustment ...

Page 11: ...ol output 25 XLT ESP O Latch signal output to ESP control IC601 26 HOLD SW I Hold switch input termianl L HOLD ON H HOLD OFF 27 XLMT MD I Limit switch input terminal L Inside Track 28 XRSM SW I RESUME switch input terminal L ON H OFF 29 WP XDC DT PWR I DC in voltage detection terminal 30 WP XOPEN SW I Door open switch input terminal L Close H Open 31 WP XPLAY SW I Play pause key input terminal 32 ...

Page 12: ...for main unit key 54 AD CHGMNT2 I Rechargeable battery detect input 55 AD HI DC I A D input terminal for DC IN voltage detection 56 AD BAT I Rechargeable battery dry cell detection input 57 AD CHGMNT I A D input terminal for charging voltage monitor 58 AD VCC I A D input terminal for VCC voltage monitor 59 AD DSP OFFSET I A D input terminal for DSP off set monitor 60 FP10 Not used Open 61 67 SEG 0...

Page 13: ... 13 15 14 D EG5 EG5CK EG7 6 2 BLOCK DIAGRAM Signal path J CD ...

Page 14: ...P702 TP703 TP701 R544 R545 R702 C526 R528 R603 IS310 TP534 TP505 C599 R502 R503 TP502 D402 L202 Q509 R509 C806 R555 R510 Q501 L502 C516 R506 R507 R505 TP503 TP504 TP506 TP547 TP509 TP510 TP511 TP508 L306 TP419 TP517 TP518 TP519 TP558 C601 C616 FB601 R602 TP545 C619 C602 R829 R830 R818 TP867 C879 R809 TP815 R808 TP822 TP525 TP881TP880 R826 TP860 TP861 TP862 TP818 R806 TP514 TEO TP521 IC505 IC503 C5...

Page 15: ...c tion tolerances Waveforms are taken with a oscilloscope Voltage variations may be noted due to normal produc tion tolerances Circled numbers refer to waveforms Signal path J CD 6 4 SCHEMATIC DIAGRAM r Refer to page 24 for IC Block Diagrams r Waveforms 1 IC502 ª XPCK 5 9 2 6 10 3 7 4 8 SERVICE MODE during TRK servo OFF VOLT DIV 1 V AC TIME DIV 0 2 µsec IC301 XTLO T401 2 IC502 RFCK IC801 º OSC2 Q4...

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Page 20: ...T FRONT L ASSY BLACK 64 A 3328 321 A BRACKET FRONT L ASSY WHITE 65 4 215 434 01 TERMINAL BATTERY 66 4 215 433 01 HOLDER LCD 67 A 3323 223 A MAIN BOARD COMPLETE EXCEPT FR 67 A 3323 224 A MAIN BOARD COMPLETE FR 68 4 215 423 11 KNOB AVLS BLACK CANADIAN BLACK 68 4 215 423 21 KNOB AVLS WHITE 69 4 993 138 01 INSULATOR 70 4 215 412 11 CABINET REAR BLACK CANADIAN BLACK 70 4 215 412 21 CABINET REAR WHITE 7...

Page 21: ... 1 OPTICAL PICK UP DAX 11A2 110 4 972 165 01 RACK 111 4 973 631 01 SCREW 112 7 627 850 17 SCREW PRECISION P 1 4X2 5 M901 A 3303 403 A MOTOR ASSY SLED SLED INCLUDING GEAR M902 A 3328 261 A MOTOR ASSY TURNTABLE SPINDLE S901 1 571 099 21 SWITCH 1 KEY LIMIT The components identified by mark or dotted line with mark are critical for safety Replace only with part number specified Les composants identifi...

Page 22: ... 360 11 CERAMIC CHIP 0 1uF 16V C324 1 162 953 11 CERAMIC CHIP 100PF 5 50V C326 1 115 467 11 CERAMIC CHIP 0 22uF 10 10V C335 1 162 910 11 CERAMIC CHIP 5PF 5 50V C401 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C402 1 126 785 11 ELECT 47uF 20 10V C403 1 127 485 00 ELECT 33uF 20 6 3V C404 1 162 923 11 CERAMIC CHIP 47PF 5 50V C405 1 164 004 11 CERAMIC CHIP 0 1uF 10 25V C406 1 164 360 11 CERAMIC CHIP 0 1uF...

Page 23: ...N501 1 566 530 11 CONNECTOR FPC ZIF 14P CN701 1 695 320 51 PIN CONNECTOR 1 5MM SMD 2P CN702 1 695 320 31 PIN CONNECTOR 1 5MM SMD 2P CN703 1 695 320 21 PIN CONNECTOR 1 5MM SMD 2P DIODE D101 8 719 976 99 DIODE UDZ TE 17 5 1B D201 8 719 976 99 DIODE UDZ TE 17 5 1B D302 8 719 976 99 DIODE UDZ TE 17 5 1B D401 8 719 048 98 DIODE RB160L 40TE25 D402 8 719 049 09 DIODE 1SS367 T3SONY D403 8 719 049 10 DIODE...

Page 24: ...4 11 METAL CHIP 0 5 1 16W R433 1 216 821 11 METAL CHIP 1K 5 1 16W R434 1 216 861 11 RES CHIP 2 2M 5 1 16W R435 1 220 800 91 RES CHIP 1 5M 0 5 1 16W R436 1 218 913 91 RES CHIP 560K 0 5 1 16W R437 1 216 833 91 RES CHIP 10K 5 1 16W R438 1 216 861 11 RES CHIP 2 2M 5 1 16W R439 1 218 913 91 RES CHIP 560K 0 5 1 16W R440 1 216 864 11 METAL CHIP 0 5 1 16W R441 1 216 853 11 RES CHIP 470K 5 1 16W R445 1 220...

Page 25: ...TH CONNECTOR 109 X 4951 546 1 OPTICAL PICK UP DAX 11A2 LCD801 1 803 351 11 DISPLAY PANEL LCD M901 A 3303 403 A MOTOR ASSY SLED SLED INCLUDING GEAR M902 A 3328 261 A MOTOR ASSY TURNTABLE SPINDLE S901 1 571 099 21 SWITCH 1 KEY LIMIT ACCESSORIES PACKING MATERIALS 1 251 696 11 CONNECTING PACK CAR EG5CK 1 467 007 22 ADAPTOR AC AC E455 EG7 AUS 1 467 009 21 ADAPTOR AC AC E455 EG5CK EG5 EG7 US CND 1 473 1...

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