Published by MW 0365 Service PaCE Printed in the Netherlands Subject to modification EN 3122 785 13520
©
Copyright 2003 Philips Consumer Electronics B.V. Eindhoven, The Netherlands.
All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system or transmitted, in any form or by any means, electronic,
mechanical, photocopying, or otherwise without the prior permission of Philips.
DVD-VCR Player DVD755VR
DVD755VR /00
DVD755VR /02
DVD755VR /05
DVD755VR /14
SECTION 1 SUMMARY 1-1
PRODUCT SAFETY SERVICING
GUIDELINES FOR VIDEO PRODUCTS 1-3
SERVICING PRECAUTIONS 1-4
SERVICE INFORMATION FOR EEPROM IC SETTING 1-5
SPECIFICATIONS
1-6
SECTION 2 CABINET & MAIN CHASSIS 2-1
1. EXPLODED VIEWS 2-2
1. CABINET AND MAIN FRAME SECTION 2-2
2. PACKING ACCESSORY SECTION 2-3
SECTION 3 ELECTRICAL 3-1
OVERALL BLOCK DIAGRAM 3-2
VCR PART
ELECTRICAL ADJUSTMENT PROCEDURES 3-3
ELECTRICAL TROUBLESHOOTING GUIDE 3-4
1. POWER(SMPS) CIRCUIT 3-4
2. SYSTEM/KEY CIRCUIT 3-7
3. SERVO CIRCUIT 3-8
4. Y/C CIRCUIT 3-11
5. HI-FI CIRCUIT 3-15
6. TUNER/IF CIRCUIT 3-18
BLOCK DIAGRAMS 3-20
1. POWER(SMPS) BLOCK DIAGRAM 3-20
2. TU/IF, NICAM & A2 BLOCK DIAGRAM 3-22
3. VPS BLOCK DIAGRAM 3-23
4. Y/C BLOCK DIAGRAM 3-24
5. HI-FI BLOCK DIAGRAM 3-26
6. SYSTEM BLOCK DIAGRAM 3-28
CIRCUIT DIAGRAMS 3-30
1. POWER(SMPS) CIRCUIT DIAGRAM 3-30
2. TU/IF, NICAM & A2 CIRCUIT DIAGRAM 3-32
3. A/V CIRCUIT DIAGRAM 3-34
4. HI-FI CIRCUIT DIAGRAM 3-36
5. SCART(JACK) CIRCUIT DIAGRAM 3-38
6. SYSTEM CIRCUIT DIAGRAM 3-40
7. TIMER CIRCUIT DIAGRAM 3-42
• WAVEFORM & VOLTAGE SHEET 3-44
• CIRCUIT VOLTAGE CHART 3-46
PRINTED CIRCUIT DIAGRAMS 3-50
1. MAIN P.C.BOARD 3-50
2. SMPS P.C.BOARD 3-52
3. KEY P.C.BOARD 3-52
4. TIMER P.C.BOARD 3-52
DVD PART
ELECTRICAL TROUBLESHOOTING
GUIDE & WAVEFORMS 3-54
1. SYSTEM OPERATION FLOW 3-54
2. TEST & DEBUG FLOW 3-55
DETAILS AND WAVEFORMS ON
SYSTEM TEST AND DEBUGGING 3-61
1. SYSTEM 27MHZ CLOCK,
RESET, FLASH R/W SIGNAL 3-61
2. SDRAM CLOCK 3-61
3. TRAY OPEN/CLOSE SIGNAL 3-62
4. SLED CONTROL RELATED SIGNAL (NO DISC CONDITION) 3-65
5. LENS CONTROL RELATED SIGNAL (NO DISC CONDITION) 3-65
6. LASER POWER CONTROL RELATED SIGNAL
(NO DISC CONDITION) 3-66
7. DISC TYPE JUDGEMENT WAVEFORM 3-66
8. FOCUS ON WAVEFORM 3-68
9. SPINDLE CONTROL WAVEFORM (NO DISC CONDITION) 3-69
10. TRACKING CONTROL RELATED SIGNAL
(SYSTEM CHECKING) 3-70
11. RF WAVEFORM 3-71
12. MT1379 AUDIO OPTICAL AND COAXIAL
OUTPUT (ASPDIF) 3-71
13. MT1379 VIDEO OUTPUT WAVEFORM 3-72
14. AUDIO OUTPUT FROM AUDIO DAC 3-73
BLOCK DIAGRAMS 3-75
1. OVERALL BLOCK DIAGRAM 3-75
2. SERVO BLOCK DIAGRAM 3-76
3. MPEG & MEMORY BLOCK DIAGRAM 3-77
4. VIDEO & AUDIO BLOCK DIAGRAM 3-78
CIRCUIT DIAGRAMS 3-79
1. SYSTEM CIRCUIT DIAGRAM 3-79
2. RF & DSP SERVO CIRCUIT DIAGRAM 3-81
3. AUDIO CIRCUIT DIAGRAM 3-83
4. AV/JACK CIRCUIT DIAGRAM 3-85
• CIRCUIT VOLTAGE CHART 3-87
PRINTED CIRCUIT DIAGRAMS 3-91
1. MAIN P.C.BOARD 3-91
SECTION 4 MECHANISM 4-1
DIRECTIONS FOR
USE
1-7
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