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DV-420V-K
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CONTENTS
SAFETY INFORMATION ..........................................................................................................................................................2
1. SERVICE PRECAUTIONS ....................................................................................................................................................5
2. SPECIFICATIONS .................................................................................................................................................................
2.1 SPECIFICATIONS...........................................................................................................................................................
2.2 DISC/CONTENT FORMAT ...........................................................................................................................................10
2.3 PANEL FACILITIES .......................................................................................................................................................16
3. BASIC ITEMS FOR SERVICE.............................................................................................................................................19
3.1 CHECK POINTS AFTER SERVICING..........................................................................................................................19
3.2 PCB LOCATIONS .........................................................................................................................................................20
3.3 JIGS LIST......................................................................................................................................................................21
4. BLOCK DIAGRAM...............................................................................................................................................................22
4.1 OVERALL WIRING DIAGRAM......................................................................................................................................22
4.2 OVERALL BLOCK DIAGRAM (YXZT52, SXZT2) .........................................................................................................24
4.3 OVERALL BLOCK DIAGRAM (UCXZTSM2) ................................................................................................................25
4.4 DVD LOADER/MPEG BLOCK DIAGRAM (YXZT52, SXZT2) .......................................................................................26
4.5 DVD LOADER/MPEG BLOCK DIAGRAM (UCXZTSM2) ..............................................................................................27
4.6 POWER BLOCK DIAGRAM..........................................................................................................................................2
5. DIAGNOSIS .........................................................................................................................................................................29
5.1 TROUBLESHOOTING ..................................................................................................................................................29
5.2 SEQUENCE AFTER POWER ON ................................................................................................................................32
5.3 METHOD FOR DIAGNOSING DEGRADATION OF THE LDS ON THE PICKUP ASSY..............................................34
6. SERVICE MODE .................................................................................................................................................................35
6.1 SERVICE MODE PROCEDURE ...................................................................................................................................35
6.2 SERVICE MODE IN ......................................................................................................................................................36
6.3 DISPLAY SPECIFICATION OF THE SERVICE MODE.................................................................................................37
6.4 FUNCTIONAL SPECIFICATION OF THE SHORTCUT KEY........................................................................................3
6.5 FUNCTIONAL SPECIFICATION OF THE SERVICE MODE ........................................................................................39
7. DISASSEMBLY....................................................................................................................................................................40
. EACH SETTING AND ADJUSTMENT ................................................................................................................................44
.1 RE-WRITE FOR DVD FIRMWARE ...............................................................................................................................44
9. EXPLODED VIEWS AND PARTS LIST ...............................................................................................................................46
9.1 PACKING SECTION......................................................................................................................................................46
9.2 EXTERIOR SECTION...................................................................................................................................................4
9.3 DVD MECHA SECTION ................................................................................................................................................50
10. SCHEMATIC DIAGRAM ....................................................................................................................................................52
10.1 DVD MT PCB ASSY (1/7) ...........................................................................................................................................52
10.2 DVD MT PCB ASSY (2/7) ...........................................................................................................................................54
10.3 DVD MT PCB ASSY (3/7) ...........................................................................................................................................56
10.4 DVD MT PCB ASSY (4/7) ...........................................................................................................................................5
10.5 DVD MT PCB ASSY (5/7) (YXZT52, SXZT2) .............................................................................................................60
10.6 DVD MT PCB ASSY (5/7) (UCXZTSM2) ....................................................................................................................62
10.7 DVD MT PCB ASSY (6/7) ...........................................................................................................................................64
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DVD MT PCB ASSY (7/7) ...........................................................................................................................................66
10.9 OPERATION PCB ASSY ............................................................................................................................................6
10.10 POWER PCB ASSY (1/2) .........................................................................................................................................70
10.11 POWER PCB ASSY (2/2) (YXZT52, SXZT2)............................................................................................................72
10.12 WAVEFORMS ...........................................................................................................................................................74
11. PCB CONNECTION DIAGRAM ........................................................................................................................................76
11.1 DVD MT PCB ASSY....................................................................................................................................................76
11.2 OPERATION PCB and LOADING MOTOR PCB ASSYS ...........................................................................................7
11.3 POWER PCB ASSY....................................................................................................................................................
12. PCB PARTS LIST ..............................................................................................................................................................
www. xiaoyu163. com
QQ 376315150
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TEL 13942296513
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
