Table Of Contents - Pioneer X-HM81-K Service Manual

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CONTENTS
SAFETY INFORMATION.......................................................................................................................................................... 2
1. SERVICE PRECAUTIONS .................................................................................................................................................... 4
1.1 NOTES ON SOLDERING ............................................................................................................................................... 4
1.2 WHEN REPLACING MECHA ......................................................................................................................................... 4
1.3 WHEN REPLACING CR870 (Module including BCO Assy) ........................................................................................... 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 .............................................................................................................................................................. 10
4.1 OVERALL WIRING DIAGRAM ..................................................................................................................................... 10
4.2 OVERALL BLOCK DIAGRAM....................................................................................................................................... 12
4.3 POWER SUPPLY BLOCK DIAGRAM........................................................................................................................... 14
5. DIAGNOSIS ........................................................................................................................................................................ 16
5.1 TROUBLESHOOTING.................................................................................................................................................. 16
5.2 PROTECTION CIRCUIT............................................................................................................................................... 21
5.3 POWER MANAGEMENT.............................................................................................................................................. 24
5.4 CHECKING TERMINALS ............................................................................................................................................. 25
5.5 IC INFORMATION ........................................................................................................................................................ 28
6. SERVICE MODE ................................................................................................................................................................. 31
6.1 SERVICE MODE .......................................................................................................................................................... 31
6.2 PROTECT CHECK MODE ........................................................................................................................................... 33
6.3 CHECKING THE LCD .................................................................................................................................................. 35
6.4 RDS CHARACTERS..................................................................................................................................................... 36
7. DISASSEMBLY ................................................................................................................................................................... 37
8. EACH SETTING AND ADJUSTMENT ................................................................................................................................ 45
8.1 UPDATING OF THE FIRMWARE ................................................................................................................................. 45
8.2 INITIAL SETTINGS....................................................................................................................................................... 51
9. EXPLODED VIEWS AND PARTS LIST............................................................................................................................... 52
9.1 PACKING SECTION ..................................................................................................................................................... 52
9.2 EXTERIOR SECTION .................................................................................................................................................. 54
9.3 SPEAKER SECTION (S-HM81GB, S-HM81SA) .......................................................................................................... 58
9.4 SPAEKER SECTION (S-HM71).................................................................................................................................... 59
10. SCHEMATIC DIAGRAM .................................................................................................................................................... 60
10.1 CD ASSY .................................................................................................................................................................... 60
10.2 TUNER and BT ASSYS.............................................................................................................................................. 62
10.3 MAIN ASSY (1/3)........................................................................................................................................................ 64
10.4 MAIN ASSY (2/3)........................................................................................................................................................ 66
10.5 MAIN ASSY (3/3)........................................................................................................................................................ 68
10.6 BCO ASSY (1/2) ......................................................................................................................................................... 70
10.7 BCO ASSY (2/2) ......................................................................................................................................................... 72
10.8 CNT1 ASSY................................................................................................................................................................ 74
10.9 CNT2 ASSY................................................................................................................................................................ 76
10.10 CNT3 ASSY.............................................................................................................................................................. 78
10.11 F_AUX, F_USB, FRONT and KEY ASSYS .............................................................................................................. 80
10.12 DOCKING ASSY ...................................................................................................................................................... 82
10.13 POWER ASSY.......................................................................................................................................................... 84
10.14 WAVEFORMS........................................................................................................................................................... 86
11. PCB CONNECTION DIAGRAM ........................................................................................................................................ 88
11.1 CD ASSY .................................................................................................................................................................... 88
11.2 TUNER and BT ASSYS.............................................................................................................................................. 90
11.3 MAIN ASSY ................................................................................................................................................................ 92
11.4 BCO ASSY ................................................................................................................................................................. 96
11.5 CNT1, CNT2 and CNT3 ASSYS................................................................................................................................. 98
11.6 F_AUX, F_USB, FRONT, KEY and DOCKING ASSYS ............................................................................................ 102
11.7 POWER ASSY.......................................................................................................................................................... 106
12. PCB PARTS LIST ............................................................................................................................................................ 108
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