DVR-231-S
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CONTENTS
SAFETY INFORMATION......................................................................................................................................2
1. SPECIFICATIONS .............................................................................................................................................6
2. EXPLODED VIEWS AND PARTS LIST.............................................................................................................8
2.1 PACKING SECTION ...................................................................................................................................8
2.2 EXTERIOR SECTION ..............................................................................................................................10
3. BLOCK DIAGRAM and SCHEMATIC DIAGRAM ............................................................................................12
3.1 OVERALL BLOCK DIAGRAM ..................................................................................................................12
3.2 OVERALL WIRING DIAGRAM .................................................................................................................14
3.3 JCKB (1/3) and KEYB ASSYS..................................................................................................................16
3.4 JCKB ASSY (2/3)......................................................................................................................................18
3.5 JCKB ASSY (3/3)......................................................................................................................................20
3.6 MAIN ASSY (1/2)......................................................................................................................................22
3.7 MAIN ASSY (2/2)......................................................................................................................................24
3.8 POWER SUPPLY UNIT ............................................................................................................................26
3.9 WAVEFORMS...........................................................................................................................................28
4. PCB CONNECTION DIAGRAM ......................................................................................................................31
4.1 JCKB and KEYB ASSYS ..........................................................................................................................32
4.2 MAIN ASSY ..............................................................................................................................................36
4.3 POWER SUPPLY UNIT ............................................................................................................................40
5. PCB PARTS LIST ............................................................................................................................................42
6. ADJUSTMENT ................................................................................................................................................44
7. GENERAL INFORMATION .............................................................................................................................45
7.1 DIAGNOSIS ..............................................................................................................................................45
7.1.1 MODEL TYPE SETTING .......................................................................................................................47
7.1.2 FIRMWARE DOWNLOADING METHOD ..............................................................................................48
7.1.3 CPRM ID NUMBER AND DATA SETTING ............................................................................................51
7.1.4 SERVICE MODE ...................................................................................................................................54
7.1.5 AGING MODE .......................................................................................................................................58
7.1.6 DISASSEMBLY......................................................................................................................................59
7.2 IC ..............................................................................................................................................................64
7.3 OUTLINE OF THE PRODUCT .................................................................................................................73
7.4 DISC/CONTENT FORMAT .......................................................................................................................74
8. PANEL FACILITIES .........................................................................................................................................75
Summary of Contents for DVR-233-S
Page 30: ...DVR 231 S 30 1 2 3 4 1 2 3 4 C D F A B E ...
Page 36: ...DVR 231 S 36 1 2 3 4 1 2 3 4 C D F A B E 4 2 MAIN ASSY SIDE A C MAIN ASSY C ...
Page 38: ...DVR 231 S 38 1 2 3 4 1 2 3 4 C D F A B E SIDE B C MAIN ASSY C ...
Page 39: ...DVR 231 S 39 5 6 7 8 5 6 7 8 C D F A B E SIDE B C VNP1999 A ...
Page 41: ...DVR 231 S 41 5 6 7 8 5 6 7 8 C D F A B E SIDE B SIDE B D D POWER SUPPLY UNIT D ...
Page 69: ...DVR 231 S 69 5 6 7 8 5 6 7 8 C D F A B E Video Driver LA73054 JCKB ASSY IC401 Block Diagram ...
