Panasonic SA-HT340E, Service Manual

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1 Safety Precautions 5
1.1. GENERAL GUIDELINES 5
1.2. Before Repair and Adjustment (Using SMPS) 5
1.3. Protection Circuitry 5
1.4. Caution for AC Cord 6
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) 9
4.1. Service caution based on legal restrictions 9
5 Handling Precautions for Traverse Unit 10
5.1. Cautions to Be Taken in Handling the Optical Pickup Unit
10
5.2. Grounding for electrostatic breakdown prevention 10
6 Accessories 12
7 Operation Procedures 13
7.1. Remote Control Keys Operation 13
7.2. Main Unit Keys Operation 14
7.3. Connection Setup 15
7.4. Disc information 16
7.5. About DivX VOD Content 18
8 Self-Diagnosis and special mode setting 19
8.1. Service Mode Summary Table 19
8.2. Service Mode Table 1 19
8.3. DVD Self Diagnostic Function-Error Code 24
8.4. Sales Demonstration Lock Function 26
8.5. Service Precautions 27
9 Assembling and Disassembling 28
9.1. Disassembly Flow Chart 29
9.2. Main Components and P.C.B. Locations 29
9.3. Disassembly of Top Cabinet 30
9.4. Disassembly of the DVD Lid (When taking out disc
manually) 30
9.5. Disassembly of Front Panel Assembly 31
9.6. Disassembly of FL P.C.B. & Volume P.C.B. 31
9.7. Disassembly of DVD Mechanism Unit 32
9.8. Disassembly of DVD Module P.C.B. 32
9.9. Disassembly of Rear panel 33
9.10. Disassembly of SMPS Module P.C.B. 33
9.11. Disassembly of Main P.C.B. & Tuner Extent P.C.B. 33
9.12. Disassembly of Digital Amp IC 33
10 Service Position 34
10.1. Servicing position of the DVD Module P.C.B. 34
10.2. Servicing position of the Main P.C.B. 34
10.3. Servicing position of the SMPS Module P.C.B. 34
11 Assembly and disassembly of Mechanism Unit 35
11.1. Disassembly Procedure 35
12 Measurements and Adjustments 41
12.1. Service Tools and Equipment 41
12.2. Important points in adjustment 41
12.3. Storing and handling of test discs 41
12.4. Optical adjustment 42
13 Abbreviations 43
14 Voltage and Waveform Chart 45
14.1. DVD Module P.C.B. 45
14.2. Main P.C.B. 46
14.3. FL P.C.B. & Tray Loading P.C.B. 47
14.4. SMPS Module P.C.B. 47
14.5. Waveform Chart 48
15 Illustration of IC's, Transistors and Diodes 49
16 Wiring Connection Diagram 51
17 Block Diagram 53
18 Schematic Notes 59
19 Schematic Diagram 61
19.1. (A) DVD Module (DV3.2) Circuit 61
19.2. (B) Main/FL/Volume/Tray Loading/Tuner Extent Circuit 65
20 Printed Circuit Board 71
20.1. (A) DVD Module P.C.B. 71
20.2. (B) Main/Power P.C.B. 72
20.3. (C) FL, Volume, Tuner Extent, & Tray Loading P.C.B. 73
21 Basic Troubleshooting Guide 75
21.1. Basic Troubleshooting Guide for Traverse Unit (DVD
Module P.C.B.) 75
21.2. Troubleshooting Guide for Power section (Power circuit) 75
22 Overall Block (HT340) 76
22.1. HT340 DVD Unit Block 77
22.2. HT340 Block (Analog Signal : DVD 5.1ch Play Back
Mode) 78
22.3. HT340 Block (Analog Signal : 2ch Analog Input Mode) 79
22.4. HT340 Power Supply Block 80
22.5. HT340 Power (Main) Block 81
23 Terminal Function of ICs 82
23.1. IC2018 (C2CBYY000194): System Control
Microprocessor IC 82
24 Exploded Views 83
24.1. Cabinet Parts Location 83
24.2. Packaging 85
25 Replacement Parts List 86
25.1. Component Parts List 87
CONTENTS
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SA-HT340E / SA-HT340EB / SA-HT340EG