SC-HC37EC, SC-HC37EE, SC-HC37EF, SC-HC37EG - Panasonic Audio Service Manual (repair manual). Page 2

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10.7. Disassembly of Front Panel Block ------------------- 33
10.8. Replacement of iPod Block ---------------------------- 35
10.9. Disassembly of Interlock Switch P.C.B.------------- 40

10.10. Disassembly of Remote Sensor P.C.B.------------- 42

10.11. Replacement of Gear Box Assembly --------------- 45

10.12. Disassembly of Motor P.C.B. -------------------------- 47
10.13. Disassembly of Belt & Pulley Gear ------------------ 48
10.14. Disassembly of Motor Assembly --------------------- 49
10.15. Disassembly of Centering Spring & Centering

Stopper------------------------------------------------------ 50

10.16. Disassembly of Lever Spring, Trigger Lever &

Driver Gear A --------------------------------------------- 52

10.17. Disassembly of SW Lever, Relay Gear &

Driver Gear B --------------------------------------------- 53

10.18. Disassembly of Shutter & Shutter Spring ---------- 55
10.19. Disassembly of Upper Guide Rail & Top

Ornament--------------------------------------------------- 56

10.20. Disassembly of Bottom Ornament ------------------- 57
10.21. Disassembly of Lower Guide Rail-------------------- 58
10.22. Disassembly of SMPS P.C.B. ------------------------- 59
10.23. Replacement of Diode (D1700) ---------------------- 62
10.24. Disassembly of Panel P.C.B. & Button

Ornament Unit -------------------------------------------- 63

10.25. Disassembly of Button P.C.B. ------------------------- 64
10.26. Disassembly of Button Ornament -------------------- 65
10.27. Disassembly of CD Mechanism ---------------------- 66
10.28. Disassembly of CD Servo P.C.B.--------------------- 67
10.29. Disassembly of Jack Lid-------------------------------- 69
10.30. Disassembly of Main P.C.B. --------------------------- 70
10.31. Disassembly of Passive Radiator (SP3 &

SP4) --------------------------------------------------------- 73

10.32. Disassembly of Front Speaker (SP1) --------------- 73
10.33. Disassembly of Front Speaker (SP2) --------------- 76
10.34. Disassembly of Passive Radiator (SP5) ----------- 78
10.35. Disassembly of Passive Radiator (SP6) ----------- 78

11 Service Position ------------------------------------------------- 79

11.1. Checking & Repairing of SMPS P.C.B. ------------- 79
11.2. Checking & Repairing of Panel P.C.B. -------------- 80
11.3. Checking & Repairing of CD Servo P.C.B.--------- 82
11.4. Checking & Repairing of Main P.C.B. (Side B) --- 85
11.5. Checking & Repairing of Main P.C.B. (Side A) --- 85

12 Block Diagram --------------------------------------------------- 91

12.1. SERVO & SYSTEM CONTROL (1/2) BLOCK

DIAGRAM -------------------------------------------------- 91

12.2. SERVO & SYSTEM CONTROL (2/2) BLOCK

DIAGRAM -------------------------------------------------- 92

12.3. IC TERMINAL CHART---------------------------------- 93
12.4. AUDIO BLOCK DIAGRAM ---------------------------- 94
12.5. POWER SUPPLY (1/2) BLOCK DIAGRAM ------- 95
12.6. POWER SUPPLY (2/2) BLOCK DIAGRAM ------- 96

13 Wiring Connection Diagram --------------------------------- 97
14 Schematic Diagram--------------------------------------------- 99

14.1. Schematic Diagram Notes ----------------------------- 99
14.2. CD SERVO CIRCUIT (1/2) -------------------------- 101
14.3. CD SERVO CIRCUIT (2/2) -------------------------- 102
14.4. MAIN CIRCUIT (1/4) ---------------------------------- 103
14.5. MAIN CIRCUIT (2/4) ---------------------------------- 104
14.6. MAIN CIRCUIT (3/4) ---------------------------------- 105
14.7. MAIN CIRCUIT (4/4) ---------------------------------- 106
14.8. iPod & REMOTE SENSOR CIRCUIT ------------- 107

14.9. PANEL, INTERLOCK SWITCH, MOTOR &

BUTTON CIRCUIT ------------------------------------- 108

14.10. SMPS CIRCUIT ----------------------------------------- 109

15 Printed Circuit Board----------------------------------------- 110

15.1. CD SERVO P.C.B.-------------------------------------- 110
15.2. MAIN P.C.B. (Side A) ---------------------------------- 111
15.3. MAIN P.C.B. (Side B) ---------------------------------- 112
15.4. iPod & REMOTE SENSOR P.C.B. ----------------- 113
15.5. PANEL, INTERLOCK SWITCH & MOTOR

P.C.B. ------------------------------------------------------ 114

15.6. BUTTON & SMPS P.C.B. ----------------------------- 115

16 Appendix Information of Schematic Diagram ------- 117

16.1. Voltage Measurement & Waveform Chart -------- 117
16.2. Illustration of IC’s, Transistors and Diodes ------- 123
16.3. Terminal Function of IC’s ----------------------------- 124

17 Exploded View and Replacement Parts List---------- 125

17.1. Exploded View and Mechanical replacement

Parts List -------------------------------------------------- 125

17.2. Electrical Replacement Parts List ------------------ 131