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Multi Sync EA221WM
NEC Multi Sync EA221WM User Manual
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6-1
6. W
riting of EDID/OSD (Monitor Information) dat
a
6.1 Writing of EDID dat
a
6.1.1 System Connection
This system should be connecte
d as shown below.
Modify the connector end by
removing the five (5) analog pins.
Fig 3 DVI to D-SUB Signal Cable
Fig 4 ISP COMMUNICATION I/F
47
49
Table of Contents
Service Manual
1
Very Important
2
Safety Guideline in Servicing
3
Other Cautions Necessary
3
Caution for LEAD-FREE Soldering Work
4
Solder Iron Tip Temperature and Contact Time
4
Procedure of Monitor Repair
5
Repair and Return
6
Swap
6
Table of Contents
7
Serial Number Label
8
Serial Number Information
8
No Power
10
Trouble Shooting
10
No Video (LED Indicator Orange)
11
No Display (LED Indicator Green)
12
Image Overlap, Focus or Flicker, Color Defect
14
Brightness Defect
15
Color Defect (Missing Color(R, G, B))
16
White Balance Defect
16
Line Defect
17
Block Defect
17
Dot Defect (Bright Dot / Dark Dot)
18
Audible Defect
19
No Sound or Noise Etc.
19
USB Doesn't Function
20
Remove the Stand
21
Disassembly
21
Remove the Rear Cover and Bezel
22
Remove the Shield
24
Panel
26
Adjustment
32
Measuring Instruments, Jigs, and Tools
32
Power Supply Voltage
32
Power Circuit Closure
32
For LG Panel (LM220WE1-TLP1 GZ LGD)
33
Reference Signal Timing
33
For SEC Panel (LTM220M1-L01 LLB SZ SEC)
33
Basic Operation
33
Special Key Operation
34
Factory Mode
34
Enter Aging Mode
34
Factory Mode Explanations
35
Hours Running
35
Show Running Time
35
Factory Preset
35
Bright MIN
36
Bright MAX
36
Auto Adjust Count
36
Auto Contrast Count
36
Url
37
Expansion
37
Burn in Mode
37
Cs Sample Comp
38
Cs Sample Sog
38
Register Address
38
Register Value
38
Check for the Received Recommended Frequency
39
Check for OSD Control Switch
39
Electric Performance Inspection
39
Inspection
39
External Inspection on the LCD Module
40
For LG Panel
40
Conditions
40
Defect Modes
40
Polarizer Defects
41
Foreign Material
41
Bezel Appearance
41
Visual Inspection
43
Electrical Inspection
43
Criteria for Bright Dot Defect
44
Judge the Bright Dot
44
Bright Dot Definition
44
Bright Dot Defect Definition
44
Dark Dot Defect Description
45
Two Adjacent
45
Minimum Distance between Dot Defects
45
Bright Dot - to - Bright Dot
45
For LGD Panel
46
Ambient Conditions
46
Viewing Distance
46
Writing of EDID/OSD (Monitor Information) Data
48
EDID Data Inspection and Writing to the D-SUB Connector
49
Operation
49
Program
49
Input Signal
49
EDID Data Inspection and Writing to the DVI
50
EDID Data File
52
EDID DATA for NEC EA221WM Analog
52
EDID DATA for NEC EA221WM Digital
52
OSD "MONITOR INFORMATION" for Serial Number
53
System Connection
53
Operation Steps
53
Shipment Setting
55
Packing Specification
56
Revision History
57
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NEC Multi Sync EA221WM Specifications
General
Brand
NEC
Model
Multi Sync EA221WM
Category
Monitor
Language
English
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