SA-VK480EE, SC-VK480EE - Panasonic Audio Service Manual (repair manual). Page 2

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5.6. USB - Play and Recording ----------------------------- 19

6 Self-Diagnosis and Special Mode Setting -------------- 21

6.1. Service Mode Summary Table ------------------------ 21
6.2. Doctor Mode Table--------------------------------------- 23
6.3. Self-Diagnosis Mode Table  --------------------------- 24
6.4. Service Mode Table (For DVD) ----------------------- 25
6.5. DVD Self Diagnostic Function-Error Code--------- 33
6.6. Sales Demonstration Lock Function ---------------- 37

7 Troubleshooting Guide---------------------------------------- 38

7.1. Troubleshooting Guide for F61 and/or F76 -------- 38
7.2. Basic Troubleshooting Guide for Traverse

Unit (DVD Module P.C.B.)------------------------------ 44

8 Service Fixture & Tools --------------------------------------- 45

8.1. Service Tools and Equipment ------------------------- 45

9 Disassembly and Assembly Instructions --------------- 46

9.1. Disassembly flow chart  -------------------------------- 48
9.2. Main Components and P.C.B. Location ------------ 49
9.3. Disassembly of Top Cabinet--------------------------- 50
9.4. Disassembly of DVD Mechanism Unit

(CR14D) ---------------------------------------------------- 51

9.5. Disassembly of DVD Module P.C.B.----------------- 53
9.6. Disassembly of Rear Panel---------------------------- 53
9.7. Disassembly of Front Panel Assembly ------------- 54
9.8. Disassembly of Mic P.C.B. ----------------------------- 55
9.9. Disassembly of Panel P.C.B., Volume P.C.B.

& Remote Sensor P.C.B. , Side Bar (L) LED
P.C.B. and Side Bar (R) LED P.C.B.----------------- 56

9.10. Disassembly of USB P.C.B. --------------------------- 58

9.11. Disassembly of Music Port P.C.B. ------------------- 59

9.12. Disassembly of CD Lid---------------------------------- 59
9.13. Disassembly of Deck Mechanism Unit ------------- 60
9.14. Disassembly of Deck P.C.B.--------------------------- 61
9.15. Disassembly of Deck Mechanism P.C.B.----------- 61
9.16. Disassembly of Deck Mechanism-------------------- 62
9.17. Disassembly of Cassette Lid -------------------------- 71
9.18. Rectification for Tape Jam Problem ----------------- 71
9.19. Disassembly of D-Amp P.C.B. ------------------------ 71
9.20. Replacement of Audio Digital Power Amp IC

(IC5000) ---------------------------------------------------- 73

9.21. Disassembly of Main P.C.B. --------------------------- 74
9.22. Disassembly of SMPS P.C.B. ------------------------- 74
9.23. Replacement of Switching Regulator IC

(IC5701) ---------------------------------------------------- 75

9.24. Replacement of Rectifier Diode (D5702)----------- 76
9.25. Replacement of Regulator Diode (D5801)--------- 78
9.26. Replacement of Regulator Diode (D5802)--------- 78
9.27. Replacement of Regulator Diode (D5803)--------- 79
9.28. Disassembly of AC Inlet P.C.B. ----------------------- 80

10 Disassembling and Assembling of Traverse Unit---- 82

10.1. Disassembly Procedures------------------------------- 82
10.2. Assembly Procedures----------------------------------- 83

11 Service Positions ----------------------------------------------- 84

11.1. Checking and Repairing of Main P.C.B. ------------ 84
11.2. Checking and Repairing Panel P.C.B., Deck

P.C.B., Volume P.C.B., Music Port P.C.B. and
Mic P.C.B.  ------------------------------------------------- 84

11.3. Checking and Repairing of D-Amp P.C.B. --------- 87
11.4. Checking and Repairing of AC Inlet P.C.B. &

SMPS P.C.B. ---------------------------------------------- 88

12 Measurements and Adjustments -------------------------- 90

12.1. Cassette Deck -------------------------------------------- 90

12.2. Tape Speed Adjustment-------------------------------- 90
12.3. Bias Voltage Check ------------------------------------- 91
12.4. Bias Frequency Check  -------------------------------- 91

13 Voltage & Waveform Chart ---------------------------------- 92

13.1. DVD Module P.C.B. (1/3) ------------------------------ 92
13.2. DVD Module P.C.B. (2/3) ------------------------------ 93
13.3. DVD Module P.C.B. (3/3) ------------------------------ 94
13.4. Main P.C.B. (1/3)----------------------------------------- 95
13.5. Main P.C.B. (2/3)----------------------------------------- 96
13.6. Main P.C.B. (3/3)----------------------------------------- 97
13.7. Panel P.C.B.----------------------------------------------- 97
13.8. Deck P.C.B. ----------------------------------------------- 98
13.9. Deck Mechanism P.C.B. ------------------------------- 98

13.10. D-Amp P.C.B. --------------------------------------------- 98

13.11. SMPS P.C.B.---------------------------------------------- 99

13.12. Volume P.C.B. -------------------------------------------- 99
13.13. Mic P.C.B.-------------------------------------------------- 99
13.14. Waveform Table (1/3) ---------------------------------- 100
13.15. Waveform Table (2/3) ---------------------------------- 101
13.16. Waveform Table (3/3) ---------------------------------- 102

14 Illustration of ICs, Transistor and Diode --------------- 103
15 Block Diagram -------------------------------------------------- 105

15.1. DVD (Audio)---------------------------------------------- 105
15.2. DVD (Servo) --------------------------------------------- 106
15.3. System Control ------------------------------------------ 107
15.4. Audio------------------------------------------------------- 108
15.5. Video------------------------------------------------------- 109
15.6. Deck-------------------------------------------------------- 110
15.7. D-Amp ----------------------------------------------------- 111
15.8. Power ------------------------------------------------------ 112

16 Wiring Connection Diagram ------------------------------- 113
17 Schematic Diagram Notes ---------------------------------- 115
18 Schematic Diagram ------------------------------------------- 117

18.1. DVD Module Circuit ------------------------------------ 117
18.2. Main Circuit----------------------------------------------- 121
18.3. Panel, Side Bar (L) Led & Side Bar (R) Led

Circuit ------------------------------------------------------ 127

18.4. Volume, Music Port, Remote Sensor & Mic

Circuit ------------------------------------------------------ 128

18.5. Deck Circuit ---------------------------------------------- 129
18.6. D-Amp Circuit-------------------------------------------- 130
18.7. SMPS Circuit--------------------------------------------- 132
18.8. USB, Deck Mechanism & AC Inlet Circuit -------- 134

19 Printed Circuit Board----------------------------------------- 135

19.1. DVD Module P.C.B. ------------------------------------ 135
19.2. Main P.C.B.----------------------------------------------- 136
19.3. Panel, Side Bar (L) Led & Side Bar (R) Led

P.C.B. ------------------------------------------------------ 137

19.4. Volume, Music Port, Remote Sensor, Mic &

USB P.C.B. ----------------------------------------------- 138

19.5. Deck, Deck Mechanism & AC Inlet P.C.B. ------- 139
19.6. D-Amp P.C.B. -------------------------------------------- 140
19.7. SMPS P.C.B.--------------------------------------------- 141

20 Terminal Function of ICs ------------------------------------ 143

20.1. IC2801 (RFKWMVK480GC): IC

Microprocessor ------------------------------------------ 143

20.2. IC6601(C0HBB0000057): IC FL Driver ----------- 143

21 Exploded View and Replacement Parts List---------- 145

21.1. Exploded View and Mechanical Replacement

Part List --------------------------------------------------- 145

21.2. Electrical Replacement Part List -------------------- 151