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ViewSonic Manuals
Monitor
VA903b-3 VS11372
Service manual
Table Of Contents - ViewSonic VA903b-3 VS11372 Service Manual
19” color tft lcd display
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Table Of Contents
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Contents
Table of Contents
Troubleshooting
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Table of Contents
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Table of Contents
Service Manual
1
Revision History
2
Table Of Contents
3
Precautions And Safety Notices
4
Handing And Placing Methods
5
Viewsonic Corporation
6
Specification
7
Product Definition And Specification
8
General Specification
9
Video Interface
9
Power Supply
9
Electrical Requirements
10
Horizontal / Vertical Frequency
10
Timing Table
10
Primary Presets
11
User Presets
11
Changing Modes
11
Audio Interface (Speaker Specification)
12
Tft Lcd Panel
12
Image Performance
13
Display Size
13
Luminance
13
Contrast Ratio
13
Preset Color Temperatures
14
Video Cards Compatibility
14
Raster Artifacts
14
Dimension
15
Ergonomics
15
Front Panel Controls And Indicators
16
Short Cuts Function From The Button(S)
16
Front Panel Hardware Controls
16
Main Menu Controls
16
Function Descriptions
17
Osd Lock Short Cuts Function For The Buttons
17
Power Lock Short Cuts Function For The Buttons
17
Memory Recall Actions
17
Factory Defaults
18
Circuit Description
19
Ac-Dc Converter
19
Scaling Controller
19
Control Interface: 7 Pins
20
Display & Tcon/Video-8 Port: 54 Pins
20
Tmds: 18 Pins
22
Pwm Interface: 3-2=1 Pin
23
Ddc Channel: 4 Pins
23
Power & Ground: 22 Pins
23
Features
24
Inverter
24
Adjusting Procedure
26
Function Test
26
Test Display & Pattern
26
Function Test Display Pattern
27
All Modes Reset
28
Auto Image Adjust
28
Firmware
28
Ddc
28
Firmware Update Procedure
29
Setup Procedure
30
Soft Install
32
Choose The Dcc Written Program
36
Creat Security File
37
Choose The Tab Mtv Type
38
Dcc Written Methods
39
Choose The Ddc Written Bios Document
40
Confirm The Bios's Check Sum
41
The Normal Program Is Writing
42
Disassembly Procedure
43
Remove The Hinge Cover
43
Unscrew the Back Cover's Screw
43
Troubleshooting Flow Chart
50
Main Procedure
50
Performance Troubleshooting
54
Function Troubleshooting
56
Audio Troubleshooting
57
Recommended Spare Parts List
58
Bom List
59
Exploded Diagram And Exploded Parts List
63
Exploded Parts List
64
Packing For Shipping
66
Block Diagram
69
Schematic Diagrams
70
Pcb Layout Diagrams
76
Drill Drawing
78
Mask - Top
79
Mask - Bottom
80
Smd - Top
81
Silkscreen - Bottom
82
Silkscreen - Top
83
Front Panel Function Control Description
84
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Table of Contents
Troubleshooting
Troubleshooting Flow Chart
50
Performance Troubleshooting
54
Function Troubleshooting
56
Audio Troubleshooting
57
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Va903m-3
Vs11372
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