Panasonic SC-HC25GS Service Manual page 2

8.6. Disassembly of Docking Lid --------------------------- 31
8.7. Replacement of CD Door Ornament ---------------- 32
8.8. Replacement of CD Door Base----------------------- 34
8.9. Disassembly of Front Cabinet Assembly----------- 37
8.10. Disassembly of LCD Window ------------------------- 39
8.11. Disassembly of Gear Box Assembly ---------------- 41
8.12. Replacement of Rack Top & Slider Top ------------ 44
8.13. Disassembly of Bridge P.C.B. & Door Switch
P.C.B.-------------------------------------------------------- 46
8.14. Replacement of Door Shaft & Slider Bottom ------ 48
8.15. Replacement of Timing Gear Shaft------------------ 50
8.16. Disassembly of Top Ornament Unit & Button
P.C.B.-------------------------------------------------------- 51
8.17. Disassembly of IR P.C.B. & Panel P.C.B. ---------- 52
8.18. Disassembly of CD Mechanism ---------------------- 54
8.19. Disassembly of CD Servo P.C.B.--------------------- 55
8.20. Disassembly of Jack Lid-------------------------------- 56
8.21. Disassembly of Tuner P.C.B. -------------------------- 58
8.22. Disassembly of SMPS P.C.B. ------------------------- 59
8.23. Replacement of Diode (D702) ------------------------ 61
8.24. Replacement of Transistor (Q701)------------------- 63
8.25. Disassembly of Docking Tub Unit-------------------- 64
8.26. Disassembly of Speaker Unit ------------------------- 68
8.27. Disassembly of Main P.C.B. --------------------------- 69
9 Service Position ------------------------------------------------- 71
9.1. Checking & Repairing of Panel P.C.B. -------------- 71
9.2. Checking & Repairing of CD Servo P.C.B.--------- 72
9.3. Checking & Repairing of Main (Side B) P.C.B. --- 74
9.4. Checking & Repairing of Main (Side A) P.C.B. --- 74
9.5. Checking & Repairing of SMPS P.C.B. ------------- 78
10 Voltage Measurement & Waveform Chart--------------- 80
10.1. CD SERVO P.C.B. --------------------------------------- 80
10.2. MAIN P.C.B. (1/3) ---------------------------------------- 81
10.3. MAIN P.C.B. (2/3) ---------------------------------------- 82
10.4. MAIN P.C.B. (3/3) ---------------------------------------- 83
10.5. PANEL P.C.B. --------------------------------------------- 83
10.6. SMPS P.C.B. ---------------------------------------------- 83
10.7. TUNER P.C.B. -------------------------------------------- 84
10.8. Waveform Chart ------------------------------------------ 84
11 Illustration of IC's, Transistors and Diodes ------------ 85
12 Overall Simplified Block -------------------------------------- 87
12.1. Voltage / Current / Ground Diagram----------------- 87
12.2. Control & Signal Diagram ------------------------------ 88
13 Block Diagram --------------------------------------------------- 89
13.1. SERVO/SYSTEM
DIAGRAM -------------------------------------------------- 89
13.2. IC TERMINAL CHART---------------------------------- 90
13.3. AUDIO BLOCK DIAGRAM ---------------------------- 91
13.4. POWER SUPPLY (1/2) BLOCK DIAGRAM ------- 92
13.5. POWER SUPPLY (2/2) BLOCK DIAGRAM ------- 93
14 Wiring Connection Diagram --------------------------------- 94
15 Schematic Diagram--------------------------------------------- 95
15.1. Schematic Diagram Notes ----------------------------- 95
15.2. CD SERVO CIRCUIT (1/2) ---------------------------- 97
15.3. CD SERVO CIRCUIT (2/2) ---------------------------- 98
15.4. MAIN CIRCUIT (1/4) ------------------------------------ 99
15.5. MAIN CIRCUIT (2/4) ---------------------------------- 100
15.6. MAIN CIRCUIT (3/4) ---------------------------------- 101
15.7. MAIN CIRCUIT (4/4) ---------------------------------- 102
15.8. MAIN (USB/iPod) CIRCUIT-------------------------- 103
15.9. iPhone, TUNER & MOTOR CIRCUIT------------- 104
CONTROL BLOCK
15.10. PANEL, IR, DOOR SWITCH, BRIDGE &
BUTTON CIRCUIT -------------------------------------105
15.11. SMPS CIRCUIT ----------------------------------------- 106
16 Printed Circuit Board----------------------------------------- 107
16.1. CD SERVO P.C.B.-------------------------------------- 107
16.2. MAIN P.C.B. (Side A) ---------------------------------- 108
16.3. MAIN P.C.B. (Side B) ---------------------------------- 109
16.4. iPhone, TUNER & MOTOR P.C.B. ----------------- 110
16.5. PANEL, IR, DOOR SWITCH, BRIDGE &
BUTTON P.C.B. ----------------------------------------- 111
16.6. SMPS P.C.B.--------------------------------------------- 112
17 Terminal Function of IC's ----------------------------------- 113
17.1. IC801
PROCESSOR IC --------------------------------------- 113
18 Exploded View and Replacement Parts List---------- 115
18.1. Exploded View and Mechanical replacement
Parts List -------------------------------------------------- 115
18.2. Electrical Replacement Parts List ------------------ 121
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(RFKWMHC25M0) MICRO