Panasonic SA-HT720P, Руководство по обслуживанию

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1 Use of Active Subwoofer 4
1.1. Checking Player when Active Subwoofer is not used 4
2 Safety Precautions 5
2.1. GENERAL GUIDELINES 5
3 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 5
4 Before Repair and Adjustment (Using Active Subwoofer) 6
5 Protection Circuitry 6
6 Precaution of Laser Diode 7
7 About Lead Free Solder (PbF) 7
8 General Description 8
8.1. Operating instructions 8
8.2. Disc information 9
9 Accessories 10
10 Handling Precautions for Optical Pickup Unit 11
10.1. Cautions to Be Taken in Handling the Optical Pickup Unit
11
10.2. Cautions to Be Taken When Replacing the Optical Pickup
11
10.3. Grounding for electrostatic breakdown prevention 11
11 Disassembly and Main Component Replacement Procedures
13
11.1. Disassembling the Top Cabinet 14
11.2. Disassembling the Front Panel 14
11.3. Disassembling the Tray Assembly 14
11.4. Removal of the Tray Base Guide (L) and Tray Base Guide
(R) 16
11.5. Removal of the Rotary Tray 16
11.6. Removal of the Open Lock Gear 16
11.7. Removal of the Close Lock Gear 16
11.8. Removal of the Tray Motor P.C.B. and Sensor P.C.B. 17
11.9. Removal of the CD Traverse Unit 17
11.10. Removal of the Pulley Gear 17
11.11. Removal of the Loading Motor P.C.B. 18
11.12. Removal of the Drive Gear (A) & (B) 18
11.13. Disassembling the Fixed Plate, Magnet and Clamper 18
11.14. Removal of the Cam Gear & Support Piece 19
11.15. Removal of the Slide Plate (L) & (R) and Change Lever 19
11.16. Assembly of Tray Base 20
12 DVD-Optical Pick-up Self-Diagnosis and Replacement
Procedure 21
12.1. Optical Pickup Breakdown Diagnosis 21
12.2. Service Mode Table 1 22
12.3. DVD Self Diagnostic Function-Error Code 22
12.4. Last Error Code saved during NO PLAY 23
12.5. Service mode table 2 24
12.6. Sales demonstration lock function 26
12.7. Handling After Completing Repairs 26
13 Self-Diagnosis Function 27
13.1. Automatic Displayed Error Codes 27
13.2. Memorized Error Codes 27
14 Service Precautions 28
14.1. Recovery after the DVD player is repaired 28
14.2. Firmware version-up of the DVD player 28
15 Adjustment Procedure 29
15.1. Service Tools and Equipment 29
15.2. Important points in adjustment 29
15.3. Storing and Handling Test Discs 29
15.4. Optical adjustment 30
16 Abbreviations 31
17 Voltage Chart 33
17.1. DVD Module P.C.B. 33
17.2. Main P.C.B. 35
17.3. FL P.C.B. 36
17.4. Loading Motor P.C.B. 36
17.5. Tray Motor P.C.B. 36
17.6. Sensor P.C.B. 37
18 Schematic Diagram Notes 38
19 Block Diagram 39
20 Schematic Diagram 45
21 Printed Circuit Board Diagram 53
22 Wiring Connection Diagram 57
23 Illustration of IC
痴
, Transistors and Diodes 59
24 Terminal Function of ICs 60
24.1. IC2018 (C2CBHG000137): Operation CPU 60
25 Parts Location and Replacement Parts List 61
25.1. Loading Mechanism, Traverse Unit & Cabinet 62
25.2. Component Parts List 66
25.3. Packing Materials & Accessories Parts List 75
25.4. Packaging 75
CONTENTS
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SA-HT720P / SA-HT720PC