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MultiSync LCD1920NX
NEC MultiSync LCD1920NX User Manual
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4-7
3.5 Setting before shipment
CONTRAST
: Approx. 60% (with an analog
signal input) / Approx. 80% (with a
digital signal input)
BRIGHTNESS
: Approx. 80%
COLOR
: R, G, B at MAX. in all cases (User)
LANGUAGE :
ENGLISH
RESOLUTION NOTIFIER
: ENABLE
H-OSD POSITION / V-OSD POSITI
ON : Center of the scree
n
SMOOTHING
: 5 / 9 steps
INVISIBLE :
ON
57
59
Table of Contents
Adjustment Procedures
52
Default Chapter
1
Service Manual
1
Table of Contents
5
Warning
6
Getting Started
7
Adjusting the Monitor
8
Quick Installation
9
Operations
11
OSD Main Menu
12
Recommended Use
15
Specifications
17
Features
18
Troubleshooting
19
References
20
Limited Warranty
21
Tco'95
22
Tco'99
24
Declaration of Conformity
28
Avertissement
31
Declaration of the Manufacturer
33
Tco'95
34
Remove Monitor Stand for Mounting
36
Function Keys
37
Hot Keys
37
Serial Number Information
43
1 Application
53
2 Basic Operation
53
General Conditions
53
Video Input Change
53
Factory Mode
54
3 Set Adjustments
55
Application
55
Source Voltage
55
Adjustments
55
Connection
55
Communication Monitor
55
Data Writing Procedures
56
Input Video Signal
57
Setting before Shipment
58
Inspection
59
1 Set Inspection
60
Application
60
Inspection Conditions
60
Power Source Voltage
60
Equipment to be Used
60
Brightness Setting
60
Inspection Mode
60
OSD Functions
60
Configuration of Inspection Jigs
60
Inspection Mode Setting
61
Operational Description of OSD Control
70
Function of each Button
70
Procedures for the Basic Operation
70
Power on
71
Inspection
71
Inspection of LCD Brightness and Contrast
71
Inspection of Automatic Adjustment Function
72
Inspection of Input Signal Discrimination
73
Inspection of VIDEO DETECT Function
74
Setting before Shipment
74
2 External Inspection on the LCD Module
75
External Inspection of the Display Surface
75
Inspection Items
75
Inspection Standards
75
3 Inspection of PLUG & PLAY Communication and OSD for Model Name/ Serial Number
78
System Connection
78
Input Signal
78
Operational Procedures
79
EDID Data File
80
Trouble Shooting
81
1 Power Is Not Available
82
2 No Image Display
83
LED Green, and no OSD and no Back Light
84
LED Green, and OSD Present, but no Image
85
3 Picture Errors
86
High-Light in White or Black
86
Image Is Unclear
87
Image Noise
88
4 Others Operational Error
89
DDC Read Error
89
Back Light Malfunction
89
5 Switching Power Circuit Failure
90
Circuit Description
92
1 Summary
93
2 Circuit Description
94
System Block Diagram
94
Analog Signal Input Circuit
95
A/D Converter
96
AM121-2And Peripheral Circuits
98
General Description
98
AM121-2 Internal Block Diagram
99
Circuit Diagram
100
Pin Description
101
Function Description
104
Reset Signal Generator Circuit
104
CPU (MTV112MN32) Description
105
CPU Internal Block
105
Features
105
Pin Description
106
H/V-Sync Processing
107
DDC & IIC Interface
108
LVDS Description
109
Circuit
109
General Description
110
Function Block Diagram
110
DDC Circuit Description
111
Analog Circuit
111
Digital Circuit
111
General Description
111
Power System Circuit and Description
112
Over Voltage Protection
113
TMDS Signal Process
114
Circuit and Description
114
Chip General Description
115
Features
115
Pin Description
116
Waveforms
119
Replacement Parts List
123
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NEC MultiSync LCD1920NX Specifications
General
Brand
NEC
Model
MultiSync LCD1920NX
Category
Monitor
Language
English
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