1
DV-RW550U
S35F2DV-RW550
SERVICE MANUAL
In the interests of user-safety (Required by safety
regulations in some countries) the set should be
restored to its original condition and only parts
identical to those specified be used.
SERVICE MANUAL
VCR/DVD RECORDER COMBINATION
MODELS
DV-RW550U
VCR/DVD RECORDER COMBINATION
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
SHARP CORPORATION
MAIN SECTION
1. SPECIFICATIONS ................................................................................................................................................ 1-1-1
2. LASER BEAM SAFETY PRECAUTIONS ............................................................................................................. 1-2-1
3. IMPORTANT SAFEGUARDS AND PRECAUTIONS ............................................................................................ 1-3-1
4. STANDARD NOTES FOR SERVICING ................................................................................................................ 1-4-1
5. PREPARATION FOR SERVICING ....................................................................................................................... 1-5-1
6. OPERATING CONTROLS AND FUNCTIONS...................................................................................................... 1-6-1
7. CABINET DISASSEMBLY INSTRUCTIONS ........................................................................................................ 1-7-1
8. HOW TO INITIALIZE THE DVD RECORDER & VCR .......................................................................................... 1-8-1
9. ELECTRICAL ADJUSTMENT INSTRUCTIONS ................................................................................................... 1-9-1
10. FIRMWARE RENEWAL MODE (FIRMWARE VERSION UP) ............................................................................ 1-10-1
11. TROUBLESHOOTING ........................................................................................................................................ 1-11-1
12. FUNCTION INDICATOR SYMBOLS................................................................................................................... 1-12-1
13. BLOCK DIAGRAMS ............................................................................................................................................ 1-13-1
14. SCHEMATIC DIAGRAMS/ CBA’S AND TEST POINTS ..................................................................................... 1-14-1
15. WAVEFORMS & VOLTAGE CHART .................................................................................................................. 1-15-1
16. WIRING DIAGRAM ............................................................................................................................................. 1-16-1
17. SYSTEM CONTROL TIMING CHARTS.............................................................................................................. 1-17-1
18. IC PIN FUNCTION DESCRIPTIONS .................................................................................................................. 1-18-1
19. LEAD IDENTIFICATIONS ................................................................................................................................... 1-19-1
20. EXPLODED VIEWS ............................................................................................................................................ 1-20-1
21. MECHANICAL PARTS LIST ............................................................................................................................... 1-21-1
22. ELECTRICAL PARTS LIST ................................................................................................................................ 1-22-1
DECK MECHANISM SECTION
1. STANDARD MAINTENANCE ............................................................................................................................... 2-1-1
2. SERVICE FIXTURE AND TOOLS ........................................................................................................................ 2-2-1
3. MECHANICAL ALIGNMENT PROCEDURES ...................................................................................................... 2-3-1
4. DISASSEMBLY / ASSEMBLY PROCEDURES OF DECK MECHANISM ............................................................ 2-4-1
5. ALIGNMENT PROCEDURES OF MECHANISM .................................................................................................. 2-5-1
6. DECK EXPLODED VIEWS ................................................................................................................................... 2-6-1
7. DECK PARTS LIST ............................................................................................................................................... 2-7-1
CONTENTS
MODEL
DV-RW550U
1
The region number for
this unit is 1.
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