DV-757Ai
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CONTENTS
SAFETY INFORMATION ..................................................................................................................................... 2
1. SPECIFICATIONS ............................................................................................................................................ 5
2. EXPLODED VIEWS AND PARTS LIST ............................................................................................................ 8
2.1 PACKING ................................................................................................................................................... 8
2.2 EXTERIOR SECTION.............................................................................................................................. 10
2.3 FRONT PANEL SECTION ....................................................................................................................... 12
2.4 LOADING MECHA ASSY ........................................................................................................................ 14
2.5 TRAVERSE MECHANISM ASSY-S ......................................................................................................... 16
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ..........................................................................................18
3.1 BLOCK DIAGRAM ................................................................................................................................... 18
3.2 LOAB ASSY and OVERALL WIRING DIAGRAM..................................................................................... 22
3.3 DVDM ASSY 1/4 [FTS BLOCK] ............................................................................................................... 24
3.4 DVDM ASSY 2/4 [FR BLOCK] ................................................................................................................. 26
3.5 DVDM ASSY 3/4 [EBY/AV1 BLOCK] ....................................................................................................... 28
3.6 DVDM ASSY 4/4 [VENC BLOCK] ............................................................................................................ 30
3.7 JACB ASSY 1/2 [AUDIO BLOCK] ............................................................................................................ 32
3.8 JACB ASSY 2/2 [VIDEO BLOCK] ............................................................................................................ 34
3.9 SACDB ASSY .......................................................................................................................................... 36
3.10 FLKY, KEYB and MSWB ASSYS........................................................................................................... 38
3.11 SCRB ASSY [WYXJ Type Only]............................................................................................................. 40
3.12 ILKB ASSY............................................................................................................................................. 42
3.13 POWER SUPPLY UNIT.......................................................................................................................... 44
3.14 WAVEFORMS [DVDM ASSY] ................................................................................................................ 45
3.15 WAVEFORMS [JACB ASSY] ................................................................................................................. 46
4. PCB CONNECTION DIAGRAM ..................................................................................................................... 47
4.1 LOAB ASSY ............................................................................................................................................. 47
4.2 DVDM ASSY ............................................................................................................................................ 48
4.3 JACB ASSY ............................................................................................................................................. 50
4.4 SACDB ASSY .......................................................................................................................................... 54
4.5 SCRB ASSY ............................................................................................................................................ 55
4.6 FLKY and KEYB ASSYS ......................................................................................................................... 56
4.7 POWER SUPPLY UNIT............................................................................................................................ 58
4.8 ILKB ASSY............................................................................................................................................... 59
4.9 MSWB ASSY ........................................................................................................................................... 60
5. PCB PARTS LIST ........................................................................................................................................... 61
6. ADJUSTMENT ............................................................................................................................................... 68
6.1 ADJUSTMENT ITEMS AND LOCATION ................................................................................................. 68
6.2 JIGS AND MEASURING INSTRUMENTS ............................................................................................... 68
6.3 NECESSARY ADJUSTMENT POINTS ................................................................................................... 69
6.4 TEST MODE ............................................................................................................................................ 70
6.5 MECHANISM ADJUSTMENT .................................................................................................................. 71
7. GENERAL INFORMATION ............................................................................................................................. 74
7.1 DIAGNOSIS ............................................................................................................................................. 74
7.1.1 ID NUMBER AND ID DATA SETTTING ................................................................................................ 74
7.1.2 SELF-DIAGNOSIS FUNCTION OF PICKUP DEFECTIVE................................................................... 76
7.1.3 TEST MODE SCREEN DISPLAY ......................................................................................................... 77
7.1.4 SELF-DIAGNOSIS FUNCTION ............................................................................................................ 79
7.1.5 FUNCTION SPECIFICATION OF THE SERVICE MODE ..................................................................... 80
7.1.6 ERROR DISPLAY ................................................................................................................................. 81
7.1.7 TEST POINTS LOCATION & WAVEFORMS ........................................................................................ 84
7.1.8 TROUBLE SHOOTING ......................................................................................................................... 86
7.1.9 DISASSEMBLY ..................................................................................................................................... 88
7.2 IC ............................................................................................................................................................. 97
7.3 DISC / CONTENT FORMAT PLAYBACK COMPATIBILITY ................................................................... 152
7.4 CLEANING............................................................................................................................................. 153
8. PANEL FACILITIES ...................................................................................................................................... 154
