Panasonic SA-AKX74PH Service Manual page 2

8.6. Sales Demonstration Lock Function ---------------- 23
9 Troubleshooting Guide---------------------------------------- 24
9.1. Part Location ---------------------------------------------- 24
9.2. Troubleshooting Guide for F61 and/or F76 -------- 28
9.3. D-Amp IC Operation & Control ----------------------- 29
10 Service Fixture & Tools --------------------------------------- 31
11 Disassembly and Assembly Instructions --------------- 32
11.1. Disassembly Flow Chart-------------------------------- 33
11.2. Main Components and P.C.B. Locations ----------- 34
11.3. Disassembly of Top Cabinet--------------------------- 35
11.4. Disassembly of Front Panel Unit --------------------- 36
11.5. Disassembly of Mic P.C.B. ----------------------------- 37
11.6. Disassembly of Panel P.C.B. -------------------------- 38
11.7. Disassembly of Memory LED P.C.B. ---------------- 39
11.8. Disassembly of Remote Sensor P.C.B.------------- 39
11.9. Disassembly of USB P.C.B. --------------------------- 40
11.10. Disassembly of Music Port P.C.B. ------------------- 40
11.11. Disassembly of Top Bar LED P.C.B.----------------- 41
11.12. Disassembly of Bottom Bar LED P.C.B. ------------ 42
11.13. Disassembly of Main P.C.B. --------------------------- 42
11.14. Replacement
(IC2010) ---------------------------------------------------- 44
11.15. Replacement
(IC2011) ---------------------------------------------------- 45
11.16. Replacement of Audio
(IC5800) ---------------------------------------------------- 46
11.17. Replacement of Audio
(IC5700) ---------------------------------------------------- 48
11.18. Disassembly of D-Amp P.C.B. ------------------------ 49
11.19. Replacement of Audio
(IC5900) ---------------------------------------------------- 51
11.20. Disassembly of SMPS P.C.B. ------------------------- 52
11.21. Replacement of Switching Regulator IC
(IC5701) ---------------------------------------------------- 53
11.22. Replacement of Rectifier Diode (D5702)----------- 54
11.23. Replacement of Rectifier Diode (D5801)----------- 56
11.24. Replacement of Rectifier Diode (D5802)----------- 57
11.25. Replacement of Regulator Diode (D5803)--------- 59
11.26. Disassembly
(BRS11C) -------------------------------------------------- 60
11.27. Disassembly of CD Interface P.C.B.----------------- 62
11.28. Disassembly of CD Servo P.C.B.--------------------- 63
11.29. Disassembly of Rear Panel---------------------------- 63
11.30. Disassembly of Voltage Selector P.C.B.------------ 64
12 Service Position ------------------------------------------------- 66
12.1. Checking and Repairing of Main P.C.B. ------------ 66
12.2. Checking and Repairing of D-Amp P.C.B. --------- 66
12.3. Checking and Repairing of Panel P.C.B. ----------- 66
12.4. Checking and Repairing of SMPS P.C.B. ---------- 67
12.5. Checking and Repairing of CD Servo P.C.B.
(Side A) ----------------------------------------------------- 68
12.6. Checking and Repairing of CD Servo P.C.B.
(Side B) ----------------------------------------------------- 69
13 Simplified Block Diagram ------------------------------------ 71
13.1. Power Block Diagram ----------------------------------- 71
14 Block Diagram --------------------------------------------------- 72
14.1. Servo & System Control -------------------------------- 72
14.2. IC Terminal Chart----------------------------------------- 74
14.3. Audio -------------------------------------------------------- 75
14.4. Power Supply --------------------------------------------- 77
15 Wiring Connection Diagram --------------------------------- 79
of Voltage Regulator
of Voltage Regulator
Digital Amp
Digital Amp
Digital Amp
of CD Mechanism
16 Schematic Diagram -------------------------------------------- 81
16.1. Schematic Diagram Notes ---------------------------- 81
16.2. CD Servo Circuit ----------------------------------------- 83
16.3. Main(MICON) Circuit------------------------------------ 87
16.4. Main(D-Amp) Circuit ------------------------------------ 97
16.5. Panel Circuit ---------------------------------------------- 99
16.6. Remote Sensor, USB, Music Port , Memory
LED, Top Bar LED and Bottom Bar LED
Circuit ------------------------------------------------------ 101
16.7. CD Interface, Mic and Voltage Selector Circuit - 102
16.8. D-Amp Circuit-------------------------------------------- 103
16.9. SMPS Circuit--------------------------------------------- 104
17 Printed Circuit Board----------------------------------------- 106
17.1. CD Servo P.C.B. ---------------------------------------- 106
17.2. Main P.C.B. (Side A) ----------------------------------- 107
17.3. Main P.C.B. (Side B) ----------------------------------- 108
17.4. Panel, Remote Sensor, USB and Music Port
P.C.B. ------------------------------------------------------ 109
17.5. Memory LED, CD Interface, Top Bar LED,
Bottom Bar LED and Mic P.C.B. -------------------- 110
IC 17.6. SMPS and Voltage Selector P.C.B. ---------------- 111
17.7. SMPS and D-Amp P.C.B.----------------------------- 112
IC 18 Appendix Information of Schematic Diagram ------- 113
18.1. Voltage & Waveform Chart --------------------------- 113
IC 18.2. Illustration of ICs, Transistor and Diode----------- 121
18.3. Terminal Function of ICs ------------------------------ 122
IC 19 Exploded View and Replacement Parts List---------- 123
19.1. Exploded View and Mechanical replacement
Part List --------------------------------------------------- 123
IC 19.2. Electrical Replacement Part List -------------------- 129
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