Text preview for : hfe_panasonic_sa-akx12ph_akx12pn_service.pdf part of panasonic hfe panasonic sa-akx12ph akx12pn service panasonic Audio SA-AKX12 hfe_panasonic_sa-akx12ph_akx12pn_service.pdf
Back to : hfe_panasonic_sa-akx12ph_ | Home
PSG1102024CE
CD Stereo System
Model No. SA-AKX12PH
SA-AKX12PN
Product Color: (K)...Black Type
Please refer to the original service manual for:
CD Mechanism Unit (BRS1C), Order No. PSG1102001CE
Speaker system SB-AKX12PN-K, Order No. PSG1102026CE
TABLE OF CONTENTS
PAGE PAGE
1 Safety Precautions----------------------------------------------- 3 3.1. Service Information -------------------------------------- 11
1.1. General Guidelines---------------------------------------- 3 4 Specifications ---------------------------------------------------- 12
1.2. Before Use (For PH only)-------------------------------- 3 5 Location of Controls and Components------------------ 13
1.3. Caution For Fuse Replacement------------------------ 3 5.1. Main Unit Key Button Operation---------------------- 13
1.4. Before Repair and Adjustment ------------------------- 4 5.2. Remote Control Key Button Operation ------------- 14
1.5. Protection Circuitry ---------------------------------------- 4 5.3. Media Information---------------------------------------- 15
1.6. Safety Parts Information --------------------------------- 5 6 Self-Diagnostic and Special Mode Setting ------------- 16
2 Warning -------------------------------------------------------------- 6 6.1. Cold-Start -------------------------------------------------- 16
2.1. Prevention of Electrostatic Discharge (ESD) 6.2. Doctor Mode Table--------------------------------------- 17
to Electrostatic Sensitive (ES) Devices -------------- 6 6.3. Reliability Test Mode (CD Mechanism Unit
2.2. Precaution of Laser Diode------------------------------- 7 (BRS1C))--------------------------------------------------- 20
2.3. Service caution based on Legal restrictions -------- 8 6.4. Self-Diagnostic Mode ----------------------------------- 21
2.4. Handling Precautions for Traverse Unit-------------- 9 6.5. Self-Diagnostic Error Code Table -------------------- 21
3 Service Navigation ----------------------------------------------11 6.6. Sales Demonstration Lock Function ---------------- 22
7 Troubleshooting Guide---------------------------------------- 23 16.4. Panel, LCD, Remote Sensor & USB Circuit ------ 85
7.1. Troubleshooting Guide for F61 and/or F76 -------- 23 16.5. Tuner & Voltage Selector Circuit--------------------- 86
7.2. Part Location ---------------------------------------------- 24 16.6. SMPS Circuit---------------------------------------------- 87
7.3. D-Amp IC Operation & Control ----------------------- 26 17 Printed Circuit Board------------------------------------------ 89
8 Disassembly and Assembly Instructions --------------- 28 17.1. CD Servo P.C.B. ----------------------------------------- 89
8.1. Disassembly Flow Chart-------------------------------- 29 17.2. Main & Tuner P.C.B. ------------------------------------ 90
8.2. Main Components and P.C.B. Locations ----------- 30 17.3. Panel, LCD, Remote Sensor & USB P.C.B.------- 91
8.3. Disassembly of Top Cabinet--------------------------- 31 17.4. SMPS & Voltage Selector P.C.B. -------------------- 92
8.4. Disassembly of Tuner P.C.B. -------------------------- 32 17.5. SMPS P.C.B.---------------------------------------------- 93
8.5. Disassembly of Front Panel Unit --------------------- 32 18 Terminal Function of ICs ------------------------------------- 95
8.6. Disassembly of Panel P.C.B. -------------------------- 34 18.1. IC2003 (RFKWMAKX12M0): IC MICRO-
8.7. Disassembly of Remote Sensor P.C.B.------------- 35 PROCESSOR -------------------------------------------- 95
8.8. Disassembly of LCD P.C.B.---------------------------- 36 18.2. IC900(C0HBA0000295): IC FL Driver -------------- 96
8.9. Disassembly of USB P.C.B. --------------------------- 37 19 Exploded View and Replacement Parts List----------- 97
8.10. Disassembly of CD Lid---------------------------------- 37 19.1. Exploded View and Mechanical replacement
8.11. Disassembly of Main P.C.B. --------------------------- 38 Part List ---------------------------------------------------- 97
8.12. Replacement of Voltage Regulator IC 19.2. Electrical Replacement Part List -------------------- 103
(IC2010) ---------------------------------------------------- 39
8.13. Replacement of Audio Digital Amp IC
(IC5902) ---------------------------------------------------- 40
8.14. Disassembly of SMPS P.C.B. ------------------------- 42
8.15. Replacement of Switching Regulator IC
(IC5701) ---------------------------------------------------- 43
8.16. Replacement of Rectifier Diode (D5702)----------- 44
8.17. Replacement of Rectifier Diode (D5801)----------- 46
8.18. Replacement of Rectifier Diode (D5802)----------- 47
8.19. Replacement of Regulator Diode (D5803)--------- 48
8.20. Disassembly of CD Mechanism Unit (BRS1C) --- 49
8.21. Disassembly of Rear Panel---------------------------- 51
8.22. Disassembly of Voltage Selector P.C.B.------------ 52
9 Replacement of Traverse Unit ------------------------------ 54
9.1. Disassembly of Traverse Unit------------------------- 54
9.2. Assembly of Traverse Unit----------------------------- 56
9.3. Disassembly of CD Servo P.C.B.--------------------- 58
10 Service Position ------------------------------------------------- 61
10.1. Checking and Repairing of Main P.C.B. ------------ 61
10.2. Checking and Repairing of Panel P.C.B. ----------- 61
10.3. Checking and Repairing of LCD P.C.B.------------- 62
10.4. Checking and Repairing of SMPS P.C.B. ---------- 62
10.5. Checking and Repairing of CD Servo P.C.B.------ 63
11 Voltage & Waveform Chart ----------------------------------- 64
11.1. CD Servo P.C.B.------------------------------------------ 64
11.2. Main P.C.B. (1/2) ----------------------------------------- 65
11.3. Main P.C.B. (2/2) ----------------------------------------- 66
11.4. LCD P.C.B.------------------------------------------------- 67
11.5. Tuner P.C.B. ----------------------------------------------- 67
11.6. SMPS P.C.B. ---------------------------------------------- 68
11.7. Waveform Table ------------------------------------------ 69
12 Illustration of ICs, Transistor and Diode ---------------- 70
13 Simplified Block Diagram ------------------------------------ 71
13.1. Overall Simplified Block Diagram -------------------- 71
13.2. Power Block Diagram ----------------------------------- 72
14 Block Diagram --------------------------------------------------- 73
14.1. Servo & System Control -------------------------------- 73
14.2. Audio -------------------------------------------------------- 74
14.3. Power Supply --------------------------------------------- 75
15 Wiring Diagram -------------------------------------------------- 76
16 Schematic Diagram--------------------------------------------- 77
16.1. Schematic Diagram Notes ----------------------------- 77
16.2. CD Servo Circuit------------------------------------------ 79
16.3. Main Circuit ------------------------------------------------ 81
2
1 Safety Precautions
1.1. General Guidelines
1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3. After servicing, carry out the following leakage current checks to prevent the customer from being exposed to shock hazards.
1.1.1. Leakage Current Cold Check
1. Unplug the AC cord and connect a jumper between the two prongs on the plug.
2. Measure the resistance value, with an ohmmeter, between the jumpered AC plug and each exposed metallic cabinet part on
the equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to the
chassis, the reading should be between 1M and 5.2M.
When the exposed metal does not have a return path to the chassis, the reading must be
1.1.2. Leakage Current Hot Check
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.
2. Connect a 1.5k, 10 watts resistor, in parallel with a 0.15