Panasonic SC-HC20GA, Service Manual

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9.4. Disassembly of Stand Unit----------------------------- 26
9.5. Disassembly of iPod/iPhone P.C.B. ----------------- 26
9.6. Disassembly of Sub Rear Panel --------------------- 28
9.7. Disassembly of Docking Tub and Tub Cover ----- 29
9.8. Disassembly of Tuner P.C.B.-------------------------- 31
9.9. Disassembly of SMPS P.C.B. ------------------------- 32
9.10. Replacement of Switching Regulator IC
(IC702) ------------------------------------------------------ 33
9.11. Replacement of Diode (D702) ------------------------ 34
9.12. Disassembly of Net Frame Unit ---------------------- 36
9.13. Disassembly of Front Cabinet unit------------------- 38
9.14. Disassembly of Motor P.C.B., Bridge 1 P.C.B.
& Position Switch P.C.B.-------------------------------- 39
9.15. Disassembly of Motor Assembly --------------------- 40
9.16. Replacement of CD Door Ornament ---------------- 42
9.17. Replacement of CD Door Base----------------------- 43
9.18. Replacement of Door Shaft & CD Door Slider
Bottom ------------------------------------------------------ 45
9.19. Replacement of Rack Top, Slider Top &
Timing Gear Shaft---------------------------------------- 48
9.20. Disassembly of Speaker unit -------------------------- 50
9.21. Disassembly of Speaker P.C.B. & Bridge 2
P.C.B.-------------------------------------------------------- 50
9.22. Disassembly of Traverse Deck ----------------------- 51
9.23. Disassembly of Traverse Cover --------------------- 53
9.24. Disassembly of CD Servo P.C.B.--------------------- 54
9.25. Disassembly of LCD Holder Unit and Panel
P.C.B.-------------------------------------------------------- 54
9.26. Disassembly of Headphone/Aux P.C.B. ------------ 55
9.27. Disassembly of Top Ornament Unit and Panel
Key P.C.B.-------------------------------------------------- 56
9.28. Disassembly of Main P.C.B. --------------------------- 57
9.29. Replacement of Transistor (Q512)------------------- 58
10 Service Position ------------------------------------------------- 60
10.1. Checking & Repairing of SMPS P.C.B. ------------- 60
10.2. Checking & Repairing of Panel P.C.B. -------------- 61
10.3. Checking & Repairing of CD Servo P.C.B.--------- 63
10.4. Checking & Repairing of Main P.C.B. (Side B) --- 65
10.5. Checking & Repairing of Main P.C.B. (Side A) --- 67
11 Voltage Measurement & Waveform Chart --------------- 70
11.1. CD SERVO P.C.B. --------------------------------------- 70
11.2. MAIN P.C.B. (1/3) ---------------------------------------- 71
11.3. MAIN P.C.B. (2/3) ---------------------------------------- 72
11.4. MAIN P.C.B. (3/3) ---------------------------------------- 73
11.5. PANEL P.C.B. --------------------------------------------- 73
11.6. TUNER P.C.B. -------------------------------------------- 73
11.7. SMPS P.C.B. ---------------------------------------------- 74
11.8. Waveform Chart ------------------------------------------ 75
12 Illustration of IC’s, Transistors and Diodes ------------ 76
13 Overall Simplified Block -------------------------------------- 77
14 Block Diagram --------------------------------------------------- 78
14.1. SERVO/SYSTEM CONTROL BLOCK
DIAGRAM-------------------------------------------------- 78
14.2. AUDIO BLOCK DIAGRAM ---------------------------- 79
14.3. POWER SUPPLY BLOCK DIAGRAM -------------- 80
15 Wiring Connection Diagram --------------------------------- 81
16 Schematic Diagram Notes ----------------------------------- 83
17 Schematic Diagram --------------------------------------------- 85
17.1. CD SERVO CIRCUIT ----------------------------------- 85
17.2. MAIN CIRCUIT (1/4) ------------------------------------ 86
17.3. MAIN CIRCUIT (2/4) ------------------------------------ 87
17.4. MAIN CIRCUIT (3/4)------------------------------------ 88
17.5. MAIN CIRCUIT (4/4)------------------------------------ 89
17.6. PANEL CIRCUIT----------------------------------------- 90
17.7. TUNER, PANEL KEY, HEADPHONE/AUX &
POSITION SWITCH CIRCUIT ----------------------- 91
17.8. MOTOR, BRIDGE 1, SPEAKER & BRIDGE 2
CIRCUIT --------------------------------------------------- 92
17.9. SMPS CIRCUIT ------------------------------------------ 93
17.10. iPod/iPhone CIRCUIT ---------------------------------- 94
18 Printed Circuit Board ------------------------------------------ 95
18.1. CD SERVO, TUNER & iPod/iPhone P.C.B.------- 95
18.2. MAIN P.C.B.----------------------------------------------- 96
18.3. PANEL, PANEL KEY, HEADPHONE/AUX,
POSITION SWITCH & MOTOR P.C.B. ------------ 97
18.4. BRIDGE 1, SPEAKER, BRIDGE 2 & SMPS
P.C.B. ------------------------------------------------------- 98
19 Terminal Function of IC’s ------------------------------------ 99
19.1. IC801 (RFKWMHC10EB) MICRO
PROCESSOR IC ---------------------------------------- 99
19.2. IC7001 (MN6627954AMA) IC SERVO
PROCESSOR -------------------------------------------100
19.3. IC7002 (BA5948FPE2) IC 4CH Drive -------------101
20 Exploded View and Replacement Parts List ---------- 103
20.1. Exploded View and Mechanical replacement
Parts List --------------------------------------------------103
20.2. Electrical Replacement Parts List ------------------109