Philips dvd 755 vr service manual

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DVD-VCR Player DVD755VR
DVD755VR I00

P DVD755VR Io2
@[FWH@@ DVD755VR I05

@fl/ifi@@ DVD755VR I14

ervice

MIL-Is mummm

Service Manual

CLASS 1

LASER PRODUCT

SECTION 1 SUMMARY

_.
_.

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V I D E o _GITAL VIDEO DIGITAL AUDIO

PRODUCT SAFETY SERVICING g figsig-gggagn 3::
GUIDELINES FOR VIDEO PRODUCTS 13 4- TIMER PC BOARD 352
SERVICING PRECAUTIONS 1-4 DVD-PART ' -
giggfiflfgflgmm FOR EEPHOM '6 35mm 1:: ELECTRICAL TROUBLESHOOTING
DIRECTIONS FOR USE 1-7 GUIDE 8 WAVEFORMS 3'54
1. SYSTEM OPERATION FLow 3-54
_ 2. TEST & DEBUG FLOw 3-55
fifilflgoégvgvig'NET 8 MAIN CHASSIS 22; DETAILS AND WAVEFORMS ON
1. CABINETAND MAIN FRAME SECTION 2-2 SYSTEM TEST AND DEBUGG'NG 1
2. PACKING ACCESSORY SECTION 2-3 1- SYSTEM MHZ CLOCK-
RESET FLASH RIw SIGNAL 3-61
SECTION 3 ELECTRICAL 3-1 2. SDRAM CLOCK 331
OVERALL BLOCK DIAGRAM 3.2 3. TRAY OPEN/CLOSE SIGNAL 332
VCR PART 4. SLED CONTROL RELATED SIGNAL (NO DISC CONDITION) 335
ELECTRICAL ADJUSTMENT PROCEDURES 3.3 5. LENS CONTROL RELATED SIGNAL (NO DISC CONDITION) 335
ELECTRICAL TROUBLESHOOTING GUIDE 34 6. LASER POWER CONTROL RELATED SIGNAL
1. POWEFl(SMPS) CIRCUIT 34 (NO DISC CONDITION) 33s
2. SYSTEM/KEY CIRCUIT 3.7 7. DISC TYPE JUDGEMENT WAVEFORM 33a
3. SERVO CIRCUIT 3-3 a. FOCUS ON WAVEFORM 33s
4. VIC CIRCUIT 311 9. SPINDLE CONTROL WAVEFORM (NO DISC CONDITION) 339
5. HI-FI CIRCUIT 3-15 10. TRACKING CONTROL RELATED SIGNAL
6. TUNER/IF CIRCUIT 3-13 (SYSTEM CHECKING) 3-70
BLOCK DIAGRAMS 3-20 11. RF WAVEFORM 3-71
1. POWEFl(SMPS) BLOCK DIAGRAM 3-20 12. MT1379 AUDIO OPTICAL AND COAXIAL
2. TUIIF, NICAM 2 A2 BLOCK DIAGRAM 3-22 OUTPUT (ASPDIF) 3-71
3. VPS BLOCK DIAGRAM 3-23 13. MT1379 VIDEO OUTPUT WAVEFORM 3.72
4. VIC BLOCK DIAGRAM 3-24 14. AUDIO OUTPUT FROM AUDIO DAC 3.73
5. Hl-Fl BLOCK DIAGRAM 3-23 BLOCK DIAGRAMS 3.75
a. SYSTEM BLOCK DIAGRAM 3-23 1. OVERALL BLOCK DIAGRAM 3.75
CIRCUIT DIAGRAMS 3-30 2. SERVO BLOCK DIAGRAM 3.75
1. POWEFl(SMPS) CIRCUIT DIAGRAM 3-30 3. MPEG 3. MEMORY BLOCK DIAGRAM 3.77
2. TUIIF, NICAM 3. A2 CIRCUIT DIAGRAM 3-32 4. VIDEO I; AUDIO BLOCK DIAGRAM 3.73
3. AN CIRCUIT DIAGRAM 3-34 CIRCUIT DIAGRAMS 3-79
4. HI-FI CIRCUIT DIAGRAM 3-33 1. SYSTEM CIRCUIT DIAGRAM 3-79
5. SCARTIJACK) CIRCUIT DIAGRAM 3-33 2. RF 3. DSP SERVO CIRCUIT DIAGRAM 331
a. SYSTEM CIRCUIT DIAGRAM 3-40 3. AUDIO CIRCUIT DIAGRAM 333
7. TIMER CIRCUIT DIAGRAM 3-42 4. AVIJACK CIRCUIT DIAGRAM 335
- WAVEFORM a. VOLTAGE SHEET 3-44 - CIRCUIT VOLTAGE CHART 337
- CIRCUIT VOLTAGE CHART 3-46 PRINTED CIRCUIT DIAGRAMS 3.91
PRINTED CIRCUIT DIAGRAMS 3-50 1. MAIN P.C.BOARD 3.91
1. MAIN P.C.BOARD 3-50
©Copyrigh! 2003 Philips Consumer EleClronics B.v. Eindhoven, The Netherlands. SECT'ON 4 MECHANISM 4-1

All rights resenIed. No pan of This publication may be reproduced, slored in a
relrieval system or Iransmilted, in any form or by any means, eleclronic,
mechanical, pholocopying, or otherwise withoul the prior permission of Philips.

Published by MW 0365 Service PaCE Prinled in the Netherlands

Subject lo modificalion

EN 3122 785 13520

£39

é PHILIPS

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SECTION 1 . . . .
SECTION 2 . . .
SECTION 3 . . .
SECTION 4 . . . .
SECTION 5 . . .
SECTION 6 . . . .

CONTENTS

SUMMARY

. CABINET & MAIN CHASSIS
. ELECTRICAL

MECHANISM OF VCR PART
. MECHANISM OF DVD PART
REPLACEMENT PARTS LIST