Panasonic SC-HTB70P, Service Manual

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9 Troubleshooting Guide ---------------------------------------- 23
10 Service Fixture & Tools --------------------------------------- 25
11 Disassembly and Assembly Instructions --------------- 26
11.1. Disassembly flow chart --------------------------------- 27
11.2. Types of Screws ------------------------------------------ 28
11.3. Main Parts Location Diagram ------------------------- 28
11.4. Disassembly of Rear Cabinet Block ---------------- 29
11.5. Disassembly of Amplifier Unit ------------------------ 31
11.6. Disassembly of Sensor P.C.B. ----------------------- 34
11.7. Disassembly of Sub Chassis Unit ------------------- 37
11.8. Disassembly of AUX P.C.B. --------------------------- 40
11.9. Disassembly of Main P.C.B. -------------------------- 42
11.10. Disassembly of SMPS and AC Inlet P.C.B. ------- 45
11.11. Replacement of Switching Regulator IC
(IC5701) --------------------------------------------------- 52
11.12. Replacement of Rectifier Diode (D5802) ---------- 53
11.13. Disassembly of Button P.C.B. ------------------------ 54
11.14. Replacement of 6P Wire (Main - Button) ---------- 59
11.15. Disassembly of Bluetooth Module P.C.B. --------- 62
11.16. Disassembly of Tilt Switch P.C.B. ------------------- 64
11.17. Disassembly of LED P.C.B. --------------------------- 66
11.18. Disassembly of Front Tweeter Speaker (SP1) --- 68
11.19. Disassembly of Front Tweeter Speaker (SP2) --- 70
11.20. Disassembly of Front Woofer Speaker (SP3) ---- 72
11.21. Disassembly of Front Woofer Speaker (SP4) ---- 74
11.22. Replacement of Front Speaker Wire
Assembly -------------------------------------------------- 76
11.23. Disassembly of Subwoofer Speaker (SP5) ------- 81
11.24. Disassembly of Subwoofer Speaker (SP6) ------- 83
12 Service Position ------------------------------------------------- 86
12.1. Checking and Repairing of SMPS and AC
Inlet P.C.B. ------------------------------------------------- 86
12.2. Checking and Repairing of Main P.C.B. (Side
A) ------------------------------------------------------------- 89
12.3. Checking and Repairing of Main P.C.B. (Side
B) ------------------------------------------------------------- 93
12.4. Checking and Repairing of AUX P.C.B. and
Sensor P.C.B. --------------------------------------------- 95
12.5. Checking and Repairing of Button P.C.B. ---------- 99
12.6. Checking and Repairing of LED P.C.B.----------- 100
13 Overall Simplified Block ------------------------------------ 103
13.1. Overall Control Diagram------------------------------ 103
14 Block Diagram ------------------------------------------------- 104
14.1. SYSTEM CONTROL & AUDIO (1/2) BLOCK
DIAGRAM ------------------------------------------------ 104
14.2. SYSTEM CONTROL & AUDIO (2/2) BLOCK
DIAGRAM ------------------------------------------------ 105
14.3. POWER SUPPLY (1/2) BLOCK DIAGRAM ----- 106
14.4. POWER SUPPLY (2/2) BLOCK DIAGRAM ----- 107
15 Wiring Connection Diagram ------------------------------- 108
16 Schematic Diagram ------------------------------------------- 109
16.1. Schematic Diagram Notes --------------------------- 109
16.2. MAIN (MICON) CIRCUIT (1/4)-----------------------111
16.3. MAIN (MICON) CIRCUIT (2/4)-----------------------112
16.4. MAIN (MICON) CIRCUIT (3/4)-----------------------113
16.5. MAIN (MICON) CIRCUIT (4/4)-----------------------114
16.6. MAIN (DAMP) CIRCUIT (1/3) ------------------------115
16.7. MAIN (DAMP) CIRCUIT (2/3) ------------------------116
16.8. MAIN (DAMP) CIRCUIT (3/3) ------------------------117
16.9. BUTTON, SENSOR & TILT SWITCH
CIRCUIT---------------------------------------------------118
16.10. LED & AC Inlet CIRCUIT ----------------------------- 119
16.11. SMPS CIRCUIT ----------------------------------------- 120
16.12. AUX CIRCUIT ------------------------------------------- 121
17 Printed Circuit Board ----------------------------------------- 122
17.1. Main P.C.B. (Side A) ---------------------------------- 122
17.2. Main P.C.B. (Side B) ---------------------------------- 123
17.3. BUTTON, SENSOR, LED & TILT SWITCH
P.C.B. ----------------------------------------------------- 124
17.4. SMPS & AC INLET P.C.B. --------------------------- 125
17.5. AUX P.C.B. ---------------------------------------------- 126
18 Appendix Information of Schematic Diagram ------- 127
18.1. Voltage Measurement & Waveform Chart -------- 127
18.2. Illustration of IC’s, Transistors and Diodes ------- 133
18.3. Terminal Function of IC’s ----------------------------- 134
19 Exploded View and Replacement Parts List ---------- 137
19.1. Exploded View and Mechanical replacement
Parts List -------------------------------------------------- 137
19.2. Electrical Replacement Parts List ------------------ 143