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A-A9MK2-K
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CONTENTS
SAFETY INFORMATION ..........................................................................................................................................................2
1. SERVICE PRECAUTIONS ....................................................................................................................................................5
1.1 NOTES ON SOLDERING ...............................................................................................................................................5
1.2 DISCHARGE OF POWER AMPLIFIER ..........................................................................................................................5
2. SPECIFICATIONS .................................................................................................................................................................6
2.1 SPECIFICATIONS...........................................................................................................................................................6
2.2 PANEL FACILITIES .......................................................................................................................................................10
3. BASIC ITEMS FOR SERVICE.............................................................................................................................................15
3.1 PCB LOCATIONS .........................................................................................................................................................15
4. BLOCK DIAGRAM...............................................................................................................................................................18
4.1 OVERALL WIRING DIAGRAM......................................................................................................................................18
4.2 OVERALL BLOCK DIAGRAM .......................................................................................................................................20
5. DIAGNOSIS .........................................................................................................................................................................22
5.1 TROUBLESHOOTING ..................................................................................................................................................22
5.2 SPECIFICATION OF PROTECTIVE OPERATION........................................................................................................23
6. SERVICE MODE .................................................................................................................................................................23
7. DISASSEMBLY....................................................................................................................................................................24
8. EACH SETTING AND ADJUSTMENT ................................................................................................................................32
8.1 ADJUSTMENT ..............................................................................................................................................................32
9. EXPLODED VIEWS AND PARTS LIST ...............................................................................................................................33
9.1 PACKING SECTION (A-A9MK2-K) ...............................................................................................................................33
9.2 EXTERIOR SECTION (A-A9MK2-K) ............................................................................................................................34
9.3 PACKING SECTION (A-A6MK2-K) ...............................................................................................................................38
9.4 EXTERIOR SECTION (A-A6MK2-K) ............................................................................................................................40
9.5 PACKING SECTION (SX-A9MK2-K).............................................................................................................................44
9.6 EXTERIOR SECTION (SX-A9MK2-K) ..........................................................................................................................46
9.7 PACKING SECTION (SX-A6MK2-K).............................................................................................................................49
9.8 EXTERIOR SECTION (SX-A6MK2-K) ..........................................................................................................................50
10. SCHEMATIC DIAGRAM ....................................................................................................................................................54
10.1 FUNCTION and HEADPHONE ASSYS ......................................................................................................................54
10.2 FRONT, REMOCON, STATION, POWER LED and ENCODER SW ASSYS..............................................................56
10.3 XM-READY ASSY .......................................................................................................................................................58
10.4 AMP LCH, AMP RCH, PROTECTION L-CH and PROTECTION R-CH ASSYS.........................................................60
10.5 REG IC, SUB TRANS, POWER SW and MAIN ASSYS .............................................................................................62
11. PCB CONNECTION DIAGRAM ........................................................................................................................................64
11.1 FANCTION and HEADPHONE ASSYS ......................................................................................................................64
11.2 FRONT, REMOCON, POWER LED and ENCODER SW ASSYS ..............................................................................66
11.3 STATION ASSY ...........................................................................................................................................................68
11.4 XM-READY ASSY .......................................................................................................................................................70
11.5 AMP LCH, PROTECTION L-CH and SPEAKER L-CH ASSY ....................................................................................72
11.6 AMP RCH, PROTECTION R-CH and SPEAKER R-CH ASSY...................................................................................74
11.7 REG IC and MAIN ASSYS..........................................................................................................................................76
11.8 SUB TRANS and POWER SW ASSYS ......................................................................................................................78
12. PCB PARTS LIST ..............................................................................................................................................................79
www. xiaoyu163. com
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
