
1 Safety Precautions 6
1.1. GENERAL GUIDELINES 6
1.2. Before Repair and Adjustment 6
1.3. Protection Circuitry 6
1.4. Safety Parts Information 7
2 Prevention of Electrostatic Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 8
3 Precaution of Laser Diode 9
4 About Lead Free Solder (PbF) 10
4.1. Service caution based on legal restrictions 10
5 Handling Precautions for Traverse Unit 11
5.1. Cautions to Be Taken in Handling the Optical Pickup Unit
11
5.2. Grounding for electrostatic breakdown prevention 11
6 Accessories 13
7 Operation Procedures 14
7.1. Main Unit key Button Operations 14
7.2. Remote Control Key Buttons Operations 15
7.3. Disc Information 16
7.4. Using the Music Port 18
7.5. Divx VOD Content 19
7.6. Connecting and Playing a USB Mass Storage Class
Device 20
8 Self-Diagnosis and Special Mode Setting 21
8.1. Service Mode Summary Table 21
8.2. Service Mode Table (For DVD) 22
8.3. Service Mode Table (For CR14) 30
8.4. DVD Self Diagnostic Function-Error Code 32
8.5. Sales Demonstration Lock Function 37
8.6. Service Precautions 37
9 Assembling and Disassembling 39
9.1. Caution 39
9.2. Disassembly flow chart 41
9.3. Main Components and P.C.B. Location 42
9.4. Disassembly of Top Cabinet 43
9.5. Disassembly of Mechanism Unit (CR14) 44
9.6. Disassembly of Rear Panel 46
9.7. Disassembly of Front Panel Unit 47
9.8. Disassembly of Panel P.C.B., Tact Switch P.C.B. &
Remote Sensor P.C.B., Side Bar (L) LED P.C.B. and Side
Bar (R) LED P.C.B. 47
9.9. Disassembly of Mic P.C.B. 50
9.10. Disassembly of USB P.C.B. 51
9.11. Disassembly of Music Port P.C.B. 51
9.12. Disassembly of CD Lid 52
9.13. Disassembly of Deck Mechanism Unit 52
9.14. Disassembly of Deck P.C.B. 53
9.15. Disassembly of Deck Mechanism 53
9.16. Disassembly of Deck Mechanism P.C.B. 56
9.17. Disassembly of Cassette Lid 56
9.18. Rectification for Tape Jam Problem 56
9.19. Disassembly of D-Amp P.C.B. 57
9.20. Replacement of Audio Digital Power Amp IC (IC5000) 58
9.21. Replacement of Audio Digital Power Amp IC (IC5200) 59
9.22. Replacement of Audio Digital Power Amp IC (IC5300) 60
9.23. Replacement of Audio Digital Power Amp IC (IC5400) 60
9.24. Disassembly of Main P.C.B. 61
9.25. Disassembly of SMPS P.C.B. 62
9.26. Replacement of Switch Regulator IC (IC5701) 63
9.27. Replacement of Switch Regulator Diode (D5702) 64
9.28. Replacement of Regulator Diode (D5801) 66
9.29. Replacement of Regulator Diode (D5802) 66
9.30. Replacement of Regulator Diode (D5803) 67
9.31. Disassembly of AC Inlet P.C.B. 68
9.32. Disassembly of DVD Module P.C.B. 69
10 Disassembling and assembling Traverse Unit Assembly in
play position 71
10.1. Disassembly of Traverse Unit Assembly 71
10.2. Assembly of Traverse Unit Assembly 72
11 Service Fixture and Tools 73
12 Service Positions 73
12.1. Checking and Repairing of Main P.C.B. 73
12.2. Checking and Repairing Panel P.C.B., Deck P.C.B., Tact
Switch P.C.B., Music Port P.C.B. and Mic P.C.B. 73
12.3. Checking and Repairing of D-Amp P.C.B. 75
12.4. Checking and Repairing of AC Inlet P.C.B. & SMPS
P.C.B. 77
13 Procedure for Checking Operation of Individual Parts of Deck
Mechanism Unit 79
13.1. Operation Check with Cassette Tape 79
13.2. Operation Check without Cassette Tape 79
14 Measurement And Adjustments 80
14.1. Cassette Deck Section 80
15 Voltage and Waveform Chart 82
15.1. DVD Module P.C.B. 82
15.2. D-Amp P.C.B. 83
15.3. Main P.C.B. 84
15.4. Panel, Mic & Tact Switch P.C.B. 85
15.5. Deck & Deck Mechanism P.C.B. 86
15.6. SMPS P.C.B. 86
15.7. Waveform Chart 87
16 Illustration of IC’s, Transistors and Diodes 89
17 Wiring Connection Diagram 91
18 Block Diagram 93
18.1. System Control 93
18.2. DVD (Servo) 94
18.3. DVD (Audio) 95
18.4. Video 96
18.5. Deck 97
18.6. Audio 98
18.7. Digital Audio Amp 99
18.8. Power 100
CONTENTS
Page Page
4
SA-VK870EE