Panasonic AG520VDH - COMB. DVD/VCR/TV, Service Manual

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1 SAFETY PRECAUTIONS 3
1.1. GENERAL GUIDELINES 3
1.2. LEAKAGE CURRENT COLD CHECK 3
1.3. LEAKAGE CURRENT HOT CHECK 3
2 X-RADIATION 4
2.1. HORIZONTAL OSCILLATOR DISABLE CIRCUIT TEST 4
2.2. REPAIR PROCEDURES OF HORIZONTAL OSCILLATOR
DISABLE CIRCUIT 4
2.3. CIRCUIT EXPLANATION 4
2.4. LASER PRODUCT 5
2.5. PRECAUTION OF LASER DIODE 5
3 PREVENTION OF ELECTROSTATIC DISCHARGE (ESD) TO
ELECTROSTATICALLY SENSITIVE (ES) DEVICES 6
4 ABOUT LEAD FREE SOLDER (PbF) 7
5 SERVICE NOTES (PLEASE READ) 8
5.1. SERVICE NOTES 8
5.2. MAINTENANCE CHART 18
6 DISASSEMBLY/ASSEMBLY PROCEDURES 19
6.1. CABINET SECTION 19
6.2. MECHANISM SECTION 26
7 ADJUSTMENT PROCEDURES 27
7.1. SERVICE FIXTURES AND TOOLS 27
7.2. MECHANICAL ADJUSTMENT 27
7.3. ELECTRICAL ADJUSTMENT 28
7.4. TEST POINTS AND CONTROL LOCATION 35
8 SCHEMATIC DIAGRAMS 37
8.1. SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT
NOTES 37
8.2. MAIN SCHEMATIC DIAGRAMS 38
8.3. DEFLECTION SCHEMATIC DIAGRAM 48
8.4. OPERATION / CRT SCHEMATIC DIAGRAMS 49
8.5. DVD MAIN / DVD SUB SCHEMATIC DIAGRAMS 50
8.6. INTERCONNECTION SCHEMATIC DIAGRAM 55
8.7. VOLTAGE CHART 56
9 CIRCUIT BOARD LAYOUT 61
9.1. MAIN C.B.A. 61
9.2. OPERATION C.B.A. 62
9.3. DEFLECTION / CRT C.B.A. 63
9.4. DVD MAIN / DVD SUB C.B.A. 64
10 BLOCK DIAGRAMS 65
11 EXPLODED VIEWS 79
11.1. MECHANISM SECTION 79
11.2. DVD SECTION 80
11.3. CHASSIS FRAME SECTION (1) 81
11.4. CHASSIS FRAME SECTION (2) 82
11.5. CHASSIS FRAME SECTION (3) 83
11.6. PACKING PARTS AND ACCESORIES SECTION 84
12 REPLACEMENT PARTS LISTS 85
12.1. REPLACEMENT NOTES 85
12.2. MECHANICAL REPLACEMENT PARTS LIST 86
12.3. ELECTRICAL REPLACEMENT PARTS LIST 87
CONTENTS
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AG-520VDH