Panasonic SA-HT640WPL, Service Manual

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1 Safety Precautions 5
1.1. GENERAL GUIDELINES 5
1.2. Before Repair and Adjustment 5
1.3. Protection Circuitry 5
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 7
3 Precaution of Laser Diode 8
4 About Lead Free Solder (PbF) 8
5 Handling Precautions for Traverse Unit 9
5.1. Cautions to Be Taken in Handling the Optical Pickup Unit 9
5.2. Grounding for electrostatic breakdown prevention 9
6 Accessories 11
7 Operation Procedures 12
7.1. Operating instructions 12
7.2. Disc information 15
8 New Features 17
8.1. RF Wireless Audio Transceiver 17
8.2. Detail Block Diagram (Receiver module) 19
8.3. Class-D Amplifier 23
9 Self-Diagnosis and special mode setting 27
9.1. Service Mode Summary Table 27
9.2. Service Mode Table 1 27
9.3. DVD Self Diagnostic Function-Error Code 32
9.4. Sales Demonstration Lock Function 34
9.5. Service Precautions 35
10 Assembling and Disassembling 36
10.1. Disassembly Flow Chart 37
10.2. Main Components and P.C.B. Locations 38
10.3. Disassembling the Top Cabinet 39
10.4. Disassembling the Front Panel Assembly 39
10.5. Disassembling the Tray Assembly 39
10.6. Disassembling the Rear Panel 40
10.7. Disassembling the Mechanism Base Assembly 40
10.8. Disassembling the FL & Head phone P.C.B. 40
10.9. Disassembling the Main P.C.B. 40
10.10. Disassembling the AC Inlet, Power & Sub power P.C.B 41
10.11. Disassembly of Digital Amp IC 41
10.12. Disassembly of Regulator IC 41
10.13. Disassembly of Switch Regulator IC (IC5701) 41
10.14. Disassembly of the Tray Base Guide (L) and Tray Base
Guide (R) 42
10.15. Disassembly of the Rotary Tray 42
10.16. Disassembly of the Traverse Unit 43
10.17. Assembly of Tray Assembly 45
11 Service Fixture and Tools 47
12 Service Positions 47
12.1. Checking & Repair Main P.C.B., Power P.C.B., FL and
Head phone P.C.B. 47
12.2. Checking & Repair DVD Module P.C.B 47
13 Measurements and Adjustments 48
13.1. Service Tools and Equipment 48
13.2. Important points in adjustment 48
13.3. Storing and handling of test discs 48
13.4. Optical adjustment 49
13.5. Abbreviations 50
14 Voltage and Waveform Chart 52
14.1. DVD Module P.C.B. 52
14.2. Main P.C.B. 53
14.3. Power P.C.B. 55
14.4. FL P.C.B. 55
14.5. Loading Motor P.C.B., Tray Motor P.C.B., Sensor P.C.B.
56
14.6. Waveform Chart 57
15 Illustration of IC's, Transistors and Diodes 58
16 Wiring Connection Diagram 59
17 Block Diagram 61
18 Schematic Diagram 69
18.1. (A) DVD Module Circuit 71
18.2. (B) Main Circuit 75
18.3. (C) Power, AC-Inlet and Sub Power Circuit 81
18.4. (D) FL and Headphone Circuit 85
18.5. (E) Loading Motor, Tray Motor and Sensor Circuit 87
19 Printed Circuit Board 89
19.1. (A) DVD Module P.C.B. 89
19.2. (B) Main, AC-Inlet and Sub Power P.C.B. 90
19.3. (C) Power P.C.B. 91
19.4. (D) FL, Headphone, Loading Motor, Tray Motor and
Sensor P.C.B. 92
20 Basic Troubleshooting Guide 93
20.1. Basic Troubleshooting Guide for DVD Module 93
20.2. Basic Troubleshooting Guide for Traverse Unit 95
20.3. Troubleshooting Guide for Wireless Surround Speaker
(SB-SA640) 96
21 Overall Block Diagram for HT640 99
21.1. SC-HT640 DVD Unit Block Diagram 100
21.2. HT640 Block Diagram (Analog Signal : DVD 5.1ch Play
Back Mode) 101
21.3. Service parts replacement 102
22 Terminal Function of ICs 105
22.1. IC2001 (MN101C49GHG): Micro-processor IC 105
23 Explode Views 106
23.1. Cabinet Parts Location 106
CONTENTS
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SA-HT640WPL