Table Of Contents - Pioneer VSX-523-K Service Manual

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CONTENTS
SAFETY INFORMATION.......................................................................................................................................................... 2
1. SERVICE PRECAUTIONS .................................................................................................................................................... 4
1.1 NOTES ON SOLDERING ............................................................................................................................................... 4
1.2 NOTES ON REPLACING PARTS ................................................................................................................................... 4
1.3 SERVICE NOTICE.......................................................................................................................................................... 4
2. SPECIFICATIONS................................................................................................................................................................. 5
3. BASIC ITEMS FOR SERVICE .............................................................................................................................................. 6
3.1 CHECK POINTS AFTER SERVICING ........................................................................................................................... 6
3.2 JIGS LIST ....................................................................................................................................................................... 6
3.3 PCB LOCATIONS ........................................................................................................................................................... 7
4. BLOCK DIAGRAM ................................................................................................................................................................ 8
4.1 OVERALL WIRING DIAGRAM ....................................................................................................................................... 8
4.2 AUDIO BLOCK DIAGRAM............................................................................................................................................ 10
4.3 POWER SUPPLY BLOCK DIAGRAM........................................................................................................................... 12
4.4 GND BLOCK DIAGRAM ............................................................................................................................................... 14
5. DIAGNOSIS ........................................................................................................................................................................ 16
5.1 TROUBLESHOOTING.................................................................................................................................................. 16
5.2 USB/iPod ERROR MESSAGE...................................................................................................................................... 21
5.3 PROTECTION CIRCUIT............................................................................................................................................... 22
5.4 IC INFORMATION ........................................................................................................................................................ 24
6. SERVICE MODE ................................................................................................................................................................. 27
7. DISASSEMBLY ................................................................................................................................................................... 31
8. EACH SETTING AND ADJUSTMENT ................................................................................................................................ 37
8.1 ADJUSTMENT REQUIRED WHEN THE UNIT IS REPAIRED OR REPLACED .......................................................... 37
8.2 UPDATING OF THE FIRMWARE ................................................................................................................................. 38
8.3 IDLE CURRENT ADJUSTMENT .................................................................................................................................. 43
9. EXPLODED VIEWS AND PARTS LIST............................................................................................................................... 44
9.1 PACKING SECTION ..................................................................................................................................................... 44
9.2 EXTERIOR SECTION .................................................................................................................................................. 46
10. SCHEMATIC DIAGRAM .................................................................................................................................................... 50
10.1 MAIN ASSY (1/2)........................................................................................................................................................ 50
10.2 MAIN ASSY (2/2)........................................................................................................................................................ 52
10.3 D-MAIN ASSY (1/3) .................................................................................................................................................... 54
10.4 D-MAIN ASSY (2/3) .................................................................................................................................................... 56
10.5 D-MAIN ASSY (3/3) .................................................................................................................................................... 58
10.6 OPTCO, FUSB and CONCT ASSYS.......................................................................................................................... 60
10.7 CPU ASSY.................................................................................................................................................................. 62
10.8 AMP5 ASSY (1/2) ....................................................................................................................................................... 64
10.9 AMP5 ASSY (2/2) ....................................................................................................................................................... 66
10.10 INSEL, FRONT and HPMIC ASSYS ........................................................................................................................ 68
10.11 SMPS ASSY ............................................................................................................................................................. 70
10.12 REG ASSY ............................................................................................................................................................... 72
11. PCB CONNECTION DIAGRAM ........................................................................................................................................ 74
11.1 MAIN ASSY ................................................................................................................................................................ 74
11.2 D-MAIN, OPTCO and FUSB ASSYS.......................................................................................................................... 78
11.3 CONCT and CPU ASSYS .......................................................................................................................................... 82
11.4 AMP5 ASSY ............................................................................................................................................................... 86
11.5 INSEL, FRONT and HPMIC ASSYS .......................................................................................................................... 88
11.6 SMPS and REG ASSYS............................................................................................................................................. 92
11.7 WG, G-L and G-R ASSYS .......................................................................................................................................... 96
12. PCB PARTS LIST .............................................................................................................................................................. 97
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VSX-523-K
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