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CONTENTS
SAFETY INFORMATION.......................................................................................................................................................... 2
1. SERVICE PRECAUTIONS .................................................................................................................................................... 4
1.1 NOTES ON SOLDERING ............................................................................................................................................... 4
2. SPECIFICATIONS................................................................................................................................................................. 5
3. BASIC ITEMS FOR SERVICE .............................................................................................................................................. 6
3.2 JIGS LIST ....................................................................................................................................................................... 6
3.3 PCB LOCATIONS ........................................................................................................................................................... 7
4. BLOCK DIAGRAM ................................................................................................................................................................ 8
4.1 OVERALL WIRING DIAGRAM ....................................................................................................................................... 8
4.2 OVERALL BLOCK DIAGRAM....................................................................................................................................... 10
5. DIAGNOSIS ........................................................................................................................................................................ 12
5.1 TROUBLESHOOTING.................................................................................................................................................. 12
5.3 PROTECTION CIRCUIT............................................................................................................................................... 20
5.4 IC INFORMATION ........................................................................................................................................................ 21
6. SERVICE MODE ................................................................................................................................................................. 21
7. DISASSEMBLY ................................................................................................................................................................... 22
8. EACH SETTING AND ADJUSTMENT ................................................................................................................................ 25
8.1 NECESSARY ITEMS TO BE NOTED........................................................................................................................... 25
9. EXPLODED VIEWS AND PARTS LIST............................................................................................................................... 28
9.1 PACKING SECTION ..................................................................................................................................................... 28
9.2 EXTERIOR SECTION .................................................................................................................................................. 30
10. SCHEMATIC DIAGRAM .................................................................................................................................................... 32
10.1 MAIN ASSY (1/8)........................................................................................................................................................ 32
10.2 MAIN ASSY (2/8)........................................................................................................................................................ 34
10.3 MAIN ASSY (3/8)........................................................................................................................................................ 36
10.4 MAIN ASSY (4/8)........................................................................................................................................................ 38
10.5 MAIN ASSY (5/8)........................................................................................................................................................ 40
10.6 MAIN ASSY (6/8)........................................................................................................................................................ 42
10.7 MAIN ASSY (7/8)........................................................................................................................................................ 44
10.8 MAIN ASSY (8/8)........................................................................................................................................................ 46
10.9 iPOD, USB and AUX ASSYS...................................................................................................................................... 48
10.10 DISPLAY LCD and VOL ASSYS............................................................................................................................... 50
10.11 SMPS ASSY ............................................................................................................................................................. 52
11. PCB CONNECTION DIAGRAM ........................................................................................................................................ 54
11.1 MAIN ASSY ................................................................................................................................................................ 54
11.3 SMPS ASSY ............................................................................................................................................................... 58
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X-EM21V
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