Table of Contents
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CONTENTS
SAFETY INFORMATION.......................................................................................................................................................... 2
1. SERVICE PRECAUTIONS .................................................................................................................................................... 4
1.1 NOTES ON SOLDERING ............................................................................................................................................... 4
1.2 WHEN REPLACING CD MECHA UNIT.......................................................................................................................... 4
2. SPECIFICATIONS................................................................................................................................................................. 5
3. BASIC ITEMS FOR SERVICE .............................................................................................................................................. 6
3.1 PCB LOCATIONS ........................................................................................................................................................... 6
3.2 JIGS LIST ....................................................................................................................................................................... 7
4. BLOCK DIAGRAM ................................................................................................................................................................ 8
4.1 OVERALL WIRING DIAGRAM ....................................................................................................................................... 8
4.2 OVERALL BLOCK DIAGRAM....................................................................................................................................... 10
5. DIAGNOSIS ........................................................................................................................................................................ 11
5.1 TROUBLESHOOTING.................................................................................................................................................. 11
5.2 PROTECTION CIRCUIT............................................................................................................................................... 12
6. SERVICE MODE ................................................................................................................................................................. 12
7. DISASSEMBLY ................................................................................................................................................................... 13
8. EACH SETTING AND ADJUSTMENT ................................................................................................................................ 19
8.1 UPDATING OF THE FIRMWARE ................................................................................................................................. 19
9. EXPLODED VIEWS AND PARTS LIST............................................................................................................................... 20
9.1 PACKING SECTION ..................................................................................................................................................... 20
9.2 EXTERIOR SECTION .................................................................................................................................................. 22
10. SCHEMATIC DIAGRAM .................................................................................................................................................... 24
10.1 MAIN PCB ASSY (1/7) ............................................................................................................................................... 24
10.2 MAIN PCB ASSY (2/7) ............................................................................................................................................... 26
10.3 MAIN PCB ASSY (3/7) ............................................................................................................................................... 28
10.4 MAIN PCB ASSY (4/7) ............................................................................................................................................... 30
10.5 MAIN PCB ASSY (5/7) ............................................................................................................................................... 32
10.6 MAIN PCB ASSY (6/7) ............................................................................................................................................... 34
10.7 MAIN PCB ASSY (7/7) ............................................................................................................................................... 36
10.8 iPOD PCB ASSY (X-HM20 ONLY) ............................................................................................................................. 38
10.9 RADIO PCB ASSY ..................................................................................................................................................... 40
10.10 DISPLAY PCB ASSY ................................................................................................................................................ 42
10.11 KEY-SWITCH PCB ASSY......................................................................................................................................... 44
10.12 HEADPHONE PCB ASSY ........................................................................................................................................ 45
10.13 POWER PCB ASSY ................................................................................................................................................. 46
10.14 USB PCB ASSY ....................................................................................................................................................... 48
11. PCB CONNECTION DIAGRAM ........................................................................................................................................ 50
11.1 MAIN and iPOD PCB ASSYS..................................................................................................................................... 50
11.2 DISPLAY and KEY-SWITCH PCB ASSYS ................................................................................................................. 54
11.3 RADIO PCB ASSY ..................................................................................................................................................... 56
11.4 HEADPHONE and USB PCB ASSYS ........................................................................................................................ 57
11.5 POWER PCB ASSY ................................................................................................................................................... 58
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