Panasonic SA-VKX25EE - Page 2

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7.4. No Remote Control Function--------------------------28
7.5. USB Device Cannot Detect----------------------------29
7.6. No Output Sound-----------------------------------------30
7.7. Check Point------------------------------------------------31
8 Disassembly and Assembly Instructions---------------34
8.1. Type of Screws -------------------------------------------34
8.2. Disassembly Flow Chart-------------------------------- 34
8.3. Main Components and P.C.B. Locations----------- 35
8.4. Disassembly of Top Cabinet---------------------------36
8.5. Disassembly of Front Panel Unit-----------------36
8.6. Disassembly of Panel P.C.B. and Music Port
P.C.B.-------------------------------------------------------- 37
8.7. Disassembly of USB P.C.B. ---------------------------38
8.8. Disassembly of Rear Panel.---------------------------38
8.9. Disassembly of Main P.C.B. ---------------------------39
8.10. Disassembly of SMPS Module -----------------------39
8.11. Disassembly of DVD Mechanism Unit ---------40
8.12. Disassembly of Backend P.C.B. Ass'y-------------- 41
9 Service Position-------------------------------------------------42
9.1. Checking of Panel P.C.B. and Music Port
P.C.B.-------------------------------------------------------- 42
9.2. Checking and Repairing of Main P.C.B. and
SMPS Module---------------------------------------------42
9.3. Checking and Repairing of Backend P.C.B.
Ass'y---------------------------------------------------------43
10 Block Diagram ---------------------------------------------------45
10.1. Backend ----------------------------------------------------45
10.2. System Control ------------------------------------------- 47
10.3. Audio --------------------------------------------------------50
10.4. Power Supply --------------------------------------------- 51
11 Wiring Connection Diagram---------------------------------53
12 Schematic Diagram---------------------------------------------55
12.1. Schematic Diagram Notes-----------------------------55
12.2. Backend (DV5U) Circuit (1/4)-------------------------57
12.3. Backend (DV5U) Circuit (2/4)-------------------------58
12.4. Backend (DV5U) Circuit (3/4)-------------------------59
12.5. Backend (DV5U) Circuit (4/4)-------------------------60
12.6. Backend (Motor Driver) Circuit -----------------------61
12.7. Backend (Video) Circuit -------------------------------- 62
12.8. Main (UP) Circuit -----------------------------------------63
12.9. Main (SOC) Circuit---------------------------------------64
12.10. Main (USB) Circuit---------------------------------------65
12.11. Main (Tuner AUX) Circuit ------------------------------66
12.12. Main (DSP) Circuit---------------------------------------67
12.13. Main (DAMP) Circuit-------------------------------------68
12.14. Main (Voltage Regulator) Circuit ---------------------69
12.15. Main (Connector) Circuit -------------------------------70
12.16. Main (Bluetooth) Circuit---------------------------------71
12.17. Panel Circuit-----------------------------------------------72
12.18. USB & Music Port Circuit-------------------------------73
13 Printed Circuit Board ------------------------------------------74
13.1. Backend P.C.B. Ass'y ----------------------------------- 74
13.2. Main P.C.B. Ass'y (Side A)-----------------------------75
13.3. Main P.C.B. Ass'y (Side B)-----------------------------76
13.4. Panel, USB & Music Port P.C.B. ---------------------77
14 Voltage and Waveform Measurement -------------------- 79
14.1. Voltage Measurement-----------------------------------79
15 Exploded View and Replacement Parts List -----------87
15.1. Cabinet Parts Location 1-------------------------------87
15.2. Cabinet Parts Location 2-------------------------------88
15.3. Packaging--------------------------------------------------89
15.4. Mechanical Replacement Part List------------------ 91
15.5. Electrical Replacement Parts List ------------------- 93