4-1
SECTION 4
MT8551P F/E LOADER PART
(SONY OPU)
CONTENTS
COMPONENT REPAIR GUIDE
............................................................................................................... 4-2
1. TRAY PROBLEM ...................................................................................................................................... 4-2
2. SPINDLE & SLED PROBLEM .................................................................................................................. 4-2
3. DISC READING PROBLEM...................................................................................................................... 4-2
LD CHECK GUIDE
...................................................................................................................................... 4-3
1. PURPOSE ................................................................................................................................................. 4-3
2. PROCEDURE ........................................................................................................................................... 4-3
HOW TO INSERT NEW BARCODE VALUE
...................................................................................... 4-4
1. PURPOSE ................................................................................................................................................. 4-4
2. REQUIRED TO INSERT NEW BARCODE VALUE .................................................................................. 4-4
3. PROCEDURE ........................................................................................................................................... 4-4
MAJOR IC INTERNAL BLOCK DIAGRAM AND PIN DESCRIPTION
...................................... 4-5
1. IC501 (MT8551P) ...................................................................................................................................... 4-5
2. IC701 (TPIC2050): 9CH MOTOR DRIVE WITH 3 BEAM LASER DIODE DRIVER ................................ 4-8
3. PICK-UP CONNECTOR TERMINAL PIN ASSIGNMENTS .................................................................... 4-10
BLOCK DIAGRAM
.................................................................................................................................... 4-11
Summary of Contents for BP330
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