SA-PT70GN - Panasonic Audio Service Manual (repair manual). Page 2

2

6.2. Service Mode Table-------------------------------------- 19
6.3. Self-Diagnosis Mode ------------------------------------ 25
6.4. DVD Self Diagnostic Function-Error Code--------- 26
6.5. Sales Demonstration Lock Function ---------------- 29
6.6. Firmware Version-Up Information -------------------- 30

7 Troubleshooting Guide---------------------------------------- 33

7.1. Troubleshooting Guide for F61 and/or F76 -------- 33
7.2. Basic Troubleshooting Guide for Traverse

Unit (DVD Module P.C.B.)------------------------------ 37

7.3. Basic Troubleshooting Guide for HDMI AV

output-------------------------------------------------------- 38

8 Disassembly and Assembly Instructions --------------- 40

8.1. Disassembly Flow Chart-------------------------------- 41
8.2. Main Components and P.C.B. Locations ----------- 42
8.3. Disassembly of Top Cabinet--------------------------- 43
8.4. Disassembly of Component Video P.C.B.---------- 43
8.5. Disassembly of Rear Panel---------------------------- 44
8.6. Disassembly of DVD Mechanism Unit

(DLS6E) ---------------------------------------------------- 44

8.7. Disassembly of DVD Module P.C.B.----------------- 46
8.8. Disassembly of SMPS P.C.B. ------------------------- 47
8.9. Replacement of Switching Regulator IC

(IC5701) ---------------------------------------------------- 48

8.10. Replacement of Diode (D5802) ---------------------- 48

8.11. Disassembly of Main/D-Amp P.C.B. ----------------- 49

8.12. Replacement of Digital Amplifier IC (IC403/

IC404/IC405) ---------------------------------------------- 51

8.13. Disassembly of Front Panel Assembly ------------- 52
8.14. Disassembly of FL P.C.B. ------------------------------ 53
8.15. Disassembly of Volume Button P.C.B. -------------- 54
8.16. Disassembly of Power Button P.C.B.---------------- 55
8.17. Replacement of DVD Lid Assembly ----------------- 56

9 Assembling and Disassembling of Traverse Unit---- 59

9.1. Disassembly of Traverse Unit------------------------- 59
9.2. Assembly of Traverse Unit ----------------------------- 60

10 Service Position ------------------------------------------------- 61

10.1. Checking & Repairing Main/D-Amp P.C.B. &

Component Video P.C.B.------------------------------- 61

10.2. Checking & Repairing of SMPS P.C.B. ------------- 61
10.3. Checking & Repairing of FL P.C.B. ------------------ 62
10.4. Checking & Repairing of DVD Module P.C.B.----- 62

11 Voltage & Waveform Chart ----------------------------------- 65

11.1. DVD Module P.C.B. (1/4)------------------------------- 65
11.2. DVD Module P.C.B. (2/4)------------------------------- 66
11.3. DVD Module P.C.B. (3/4)------------------------------- 67
11.4. DVD Module P.C.B. (4/4)------------------------------- 67
11.5. Main P.C.B. (1/3) ----------------------------------------- 68
11.6. Main P.C.B. (2/3) ----------------------------------------- 69
11.7. Main P.C.B. (3/3) ----------------------------------------- 70
11.8. FL P.C.B. --------------------------------------------------- 71
11.9. SMPS P.C.B. ---------------------------------------------- 71

11.10. Component Video P.C.B.------------------------------- 72

11.11. Waveform Table (1/3) ----------------------------------- 73

11.12. Waveform Table (2/3) ----------------------------------- 74
11.13. Waveform Table (3/3) ----------------------------------- 75

12 Illustration of ICs, Transistor and Diode ---------------- 76
13 Overall Simplified Block Diagram ------------------------- 77
14 Block Diagram --------------------------------------------------- 78

14.1. DVD(Servo)------------------------------------------------ 78
14.2. DVD(Audio/Video) --------------------------------------- 79
14.3. DVD(UP-CON)-------------------------------------------- 80

14.4. System Control ------------------------------------------- 81
14.5. Analog Audio---------------------------------------------- 82
14.6. Digital Audio----------------------------------------------- 83
14.7. Analog Video---------------------------------------------- 84
14.8. Power Supply --------------------------------------------- 85

15 Wiring Connection Diagram -------------------------------- 87
16 Schematic Diagram Notes ----------------------------------- 89
17 Schematic Diagram -------------------------------------------- 91

17.1. DVD Module Circuit ------------------------------------- 91
17.2. Main/D-Amp Circuit ------------------------------------- 96
17.3. FL, Volume Button & Power Button Circuit------- 102
17.4. Component Video Circuit ----------------------------- 103
17.5. SMPS Circuit--------------------------------------------- 104

18 Printed Circuit Board----------------------------------------- 106

18.1. DVD Module P.C.B. ------------------------------------ 106
18.2. Main/D-Amp P.C.B.------------------------------------- 107
18.3. FL, Volume Button, Power Button &

Component Video P.C.B. ----------------------------- 109

18.4. SMPS P.C.B.--------------------------------------------- 110

19 Terminal Function of ICs ------------------------------------ 111

19.1. IC200 (RFKWMPT70EGK): IC

MICROPROCESSOR --------------------------------- 111

19.2. IC901(C0HBB0000057): IC FL Driver ------------- 111

20 Exploded View and Replacement Parts List---------- 113

20.1. Exploded View and Mechanical Replacement

Part List --------------------------------------------------- 113

20.2. Electrical Replacement Part List -------------------- 116