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AccuSync LCD71VM
NEC AccuSync LCD71VM User Manual
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3-4
SYMBOL
Part No for NPG
DESCRIPTION
1
1 14300521
SC,CFIMS*3*4*3K
12 14300201
4#-40TX4.8HLX4X5-NI/W
SYMBOL
Part No for NPG
DESCRIPTION
13 14000121
SCREW
CUP(3*8*15BF)
14 12301
161
SHIELD
EMI,L172R6
15 12000961
CHASSIS
BASE,L172R6
16 14300521
SC,CFIMS*3*4*3K
CN53
11
12
CN52
CN54
CN55
13
S404
14
15
16
46
48
Table of Contents
Table of Contents
3
Service Manual
1
Warning
6
Contents
7
User's Manual --------------------------------------------------------------------
8
Quick Start
8
Controls
12
Recommended Use
15
Specifications
17
Features
19
Troubleshooting
20
References
21
Limited Warranty
22
Why Do We Have Environmentally Labelled Computers
23
What Does Labelling Involve
23
Declaration of Conformity
26
Declaration of the Manufacturer
28
Canadian Department of Communications Compliance Statement
29
Fcc Information
29
Remove Monitor Stand for Mounting
31
Removing the Base
32
Auto Adjust
34
Monitor Info
35
Serial Number Information
43
Disassembly -----------------------------------------------------------------------
44
Adjustment Procedures
50
1 Application
51
2 Default Setting
51
3 Basic Operation
51
Basic Key Function
51
Hot Key for Factory Adjust
52
Hot Key for Burn-In Mode
53
4 Adjustment
54
Measuring Instruments, Jigs and Tools
54
Power-Supply Voltage
54
Power Circuit Closure
54
ADC Bias and Gain Adjust
54
Panel Brightness Check
55
Panel Color Check
55
Color Temperature Check
55
5 Reference Signal Timing
56
6 Factory Mode Explanations
57
7 Preset Timing Sheet
60
Inspection
64
Default Chapter
64
Inspection ----------------------------------------------------------------------------
64
1 General Description
65
2 Electrical Characteristics
66
Power Supply
66
LCD Without Acrylic Panel
67
Video Interface
67
Audio System
68
External Inspection on the LCD Module
70
3 Electrical Inspection
74
Function Switch Check
74
Frequency Change
74
Performance Check
74
Check Power Manage Function
74
Inspection on Audio Function
75
4 Safety Test
76
Input Current Measurements
76
Power Source/Earth Connections
76
Dielectric Strength Test
77
Leakage Current Test
77
Insulation Resistance Test
78
5 Inspection of PLUG & PLAY Communication and OSM "MONITOR INFORMATION" for Model Name/ Serial Number
79
System Connection
79
Input Signal
79
Program
79
Operation
80
EDID Data File
83
EDID Write Protect Cancel Signal Timing
83
Appendix Reference Signal Timings
84
Trouble Shooting
89
No Display on Screen (Screen Is Black, LED Is Amber)
90
No Display on Screen (Screen Is Black, LED Is Green)
91
Checking the Back Light Unit
93
Abnormal Screen
94
Abnormal Plug and Play Operation
95
Checking the Horizontal Sync Pulse Control Circuit
96
Checking the Sync Signal Interface Circuit
96
Checking the Vertical Sync Pulse Control Circuit
97
Checking the Scaling IC Movement
98
No Power on
99
Checking the Audio Operation
100
Block Diagram -------------------------------------------------------------------
101
Power Circuit
102
Replacement Parts List
117
Packing Specification
128
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NEC AccuSync LCD71VM Specifications
General
Brand
NEC
Model
AccuSync LCD71VM
Category
Monitor
Language
English
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