BBK BBK921D, Service Manual

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CONTENTS
1. SAFETY PRECAUTIONS
1.1 GENENRAL GUIDELINES
2. PREVENTION OF ELECTRO STATIC DISCHARGE(ESD)TO ELECTROSTATICALLY
SENSITIVE(ES) DEVICES
3. PRECAUTION OF LASTER DIODE
4. GENERAL DESCRIPTION
5. PREVENTION OF STATIC ELECTRICITY DISCHARGE
5.1 GROUNDING FOR ELECTROSTATIC BREAKDOWN PREVENTION
5.1.1 WORKTABLE GROUNDING
5.1.2 HUMAN BODY GROUNDING
5.1.3 HANDING OF OPTICAL PICKUP
5.2 HANDING PRECAUTIONS FOR TRAVERSE UNIT(OPTICAL PICKUP)
6. ASSENBLING AND DISASSEMBLING THE MECHANISM UNIT
6.1 DISASSEMBLY PROCEDURE
6.2 TERMINAL PCB
6.3 CLAMP PLATE UNIT
6.4 TRAY
6.5 TRAVERSE BLOCK
6.6 TRAVERSE GEAR
6.7 OPTICAL PICKUP UNIT
6.7.1 PRECAUTIONS IN OPTICAL PICKUP REPLACEMENT
6.8 DISASSEMBLING THE MIDDLE CHASSIS
6.9 DISASSENBLING THE TRAVERSE GRAR A
6.10 DISASSEMBLING THE SPINDLE MOTOR UNIT
7. ELECTRICAL CONFIRMATION
7.1 VIDEO OUTPUT(LUMINANCE SIGNAL)CONFIRMATION
7.2 VIDEO OUTPUT(CHROMINANCE SIGNAL)CONFIRMATION
8. MPEG CHECK WAVEFORM
9. IC BLOCK DIAGRAM & DESCRIPTION
10. SCHEMATIC & PCB WIRING DIAGRAM
11. SPARE PARTS LIST
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