Panasonic SA-HT995EE, Service Manual, Page: 4 / 124

1 Safety Precautions 6
1.1. GENERAL GUIDELINES 6
1.2. Before Repair and Adjustment 6
1.3. Protection Circuitry 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 Key Buttons Operations 13
7.2. Main Unit Key Buttons Operations (SA-HT995) 14
7.3. Use of HDAVI Control 15
7.4. Using of Music Port 16
7.5. Disc Information 17
7.6. About DivX VOD Content 19
7.7. Audio & Video Connections 20
8 New Features 21
8.1. About HDMI 21
9 Self-Diagnosis and special mode setting 23
9.1. Service Mode Summary Table 23
9.2. Service Mode Table 23
9.3. DVD Self Diagnostic Function-Error Code 28
9.4. Sales Demonstration Lock Function 30
9.5. Service Precautions 31
10 Assembling and Disassembling 32
10.1. Disassembly Flow Chart 33
10.2. Main Components and P.C.B. Locations 34
10.3. Disassembly of Top Cabinet 35
10.4. Disassembly of the DVD Lid (When taking out disc
manually) 35
10.5. Disassembly of Front Panel Assembly 36
10.6. Disassembly of Music Port P.C.B, Mic P.C.B., FL P.C.B.
& Top Button P.C.B. 36
10.7. Disassembly of Scart P.C.B. 37
10.8. Disassembly of Karaoke P.C.B. 37
10.9. Disassembly of DVD Mechanism Unit 37
10.10. Disassembly of Relay P.C.B. 38
10.11. Disassembly of Rear panel 38
10.12. Disassembly of HDMI Module P.C.B. 38
10.13. Disassembly of Main P.C.B., AC-Inlet P.C.B. & Tuner
Extent P.C.B. 38
10.14. Disassembly of Digital Amp IC (IC5000) 39
10.15. Disassembly of Digital Amp IC (IC5400) 39
10.16. Disassembly of Regulator Diodes & Transistor 40
10.17. Disassembly of Switch Regulator IC & Diode
(IC5701/D5702) 40
11 Service Position 42
11.1. Servicing position of the HDMI Module P.C.B. 42
11.2. Servicing position of the Main P.C.B. 42
12 Assembly and disassembly of Mechanism Unit 43
12.1. Disassembly Procedure 43
13 Measurements and Adjustments 49
13.1. Service Tools and Equipment 49
13.2. Important points in adjustment 49
13.3. Storing and handling of test discs 49
13.4. Optical adjustment 50
14 Abbreviations 51
15 Voltage and Waveform Chart 53
15.1. HDMI Module P.C.B. 53
15.2. Main/Power P.C.B. 55
15.3. FL P.C.B., Scart P.C.B., Mic P.C.B. & Tray Loading P.C.B.
57
15.4. Waveform Chart 58
16 Illustration of IC's, Transistors and Diodes 60
17 Wiring Connection Diagram 61
18 Block Diagram 63
19 Schematic Diagram Notes 71
20 Schematic Diagram 73
20.1. (A) Optical Pickup Unit & HDMI Circuit 73
20.2. (B) Main Circuit 80
20.3. (C) Power & AC-Inlet Circuit 85
20.4. (D) FL, Top Button, Tuner Extent, Music Port, Tray
Loading, Mic, Relay, Scart & Karaoke Circuit 89
21 Printed Circuit Board 93
21.1. (A) HDMI Module P.C.B. 93
21.2. (B) Main/Power P.C.B. 94
CONTENTS
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SA-HT995EE