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ViewSonic Corporation
Confidential - Do Not Copy
VG2030wm-1
1.5.7 White Balance
Test Signal: 1680*1050@60Hz
Test Pattern: White and Black Pattern
1.5.8 R, G, B, Colors Contrast
Test Signal: 1680*1050@60Hz
Test Pattern: R, G, B, Color Intensities Pattern and 16 Gray Scale Pattern
- Check and see if each color is normal and distinguishable.
- If not, please return the unit to repair area.
1.5.9 Screen Uniformity and Flicker
Test Signal: 1680*1050@60Hz
Test Pattern: Full White Pattern
- Check and see if it is in normal condition.
1.5.10 Dead Pixel and Line
Test Signal: 1680*1050@60Hz
Test Pattern: Dark and White Screen Pattern
- Check and see if there are dead pixels on LCD panel with shadow gauge and filter film.
- The total numbers and distance of dead pixels should be compliant with the spec.
1.5.11 Mura
Test Pattern: White, RGB, Black, & Grey
Test Tool: 8% ND Filter
- Check if the Mura can pass 8% ND Filter.
1.5.12 Audio
Test Signal: Voice signal (optional, depend on model)
Test Pattern: liberty
- Make sure there is audio output.
- Make sure that audio function (volume 80%) is working without noise and resonance.
- Make sure that the sound of right and left speakers are in balance.
1.5.13 Check for Secondary Display Modes
Test Signal:
Analog: 640*350@70Hz; 640*480@60HZ
720*400@70Hz; 800*600@60HZ/70HZ/75HZ
832*624@75Hz, 1024*768@60HZ/70HZ/75HZ
1280*1024@60/75Hz
Digital: 640*350@70Hz; 640*480@60HZ
720*400@70Hz; 800*600@60HZ/70HZ/75HZ
1024*768@60/70/72/75; 1152*870@75Hz,
1280*1024@60Hz/75HZ
- Normally when the primary mode 1280*1024@60Hz is well adjusted and compliant
with the specification, the secondary display modes will be great possible to be compliant
with the spec. But we still have to check with the general test pattern to make sure every
secondary is compliant with the specification.
1.5.14 All Modes Reset
After final QC step, we have to erase all saved changes again and restore the factory
defaults. You should do “All Mode Reset” again.
1.5.15 Power Off Monitor
Turn off the monitor by pressing “Power” button.
Summary of Contents for VG2030wm-1
Page 39: ...36 ViewSonic Corporation Confidential Do Not Copy VG2030wm 1 6 Troubleshooting Flow Chart...
Page 40: ...6 1 NO POWER 6 2 MCU NO FUNCTION 37 ViewSonic Corporation Confidential Do Not Copy VG2030wm 1...
Page 41: ...6 3 NO DISPLAY 38 ViewSonic Corporation Confidential Do Not Copy VG2030wm 1...
Page 42: ...39 ViewSonic Corporation Confidential Do Not Copy VG2030wm 1 7 Block Diagram...
Page 54: ...9 2 MAIN PCB BOTTOM VIEW 51 ViewSonic Corporation Confidential Do Not Copy VG2030wm 1...
Page 55: ...9 3 CON PCB TOP VIEW 52 ViewSonic Corporation Confidential Do Not Copy VG2030wm 1...
Page 56: ...9 4 CON PCB BOTTOM VIEW 53 ViewSonic Corporation Confidential Do Not Copy VG2030wm 1...
Page 57: ...9 5 IR PCB TOP VIEW 54 ViewSonic Corporation Confidential Do Not Copy VG2030wm 1...
Page 58: ...9 6 IR PCB BOTTOM VIEW 55 ViewSonic Corporation Confidential Do Not Copy VG2030wm 1...
Page 59: ...9 7 POWER PCB TOP VIEW 56 ViewSonic Corporation Confidential Do Not Copy VG2030wm 1...
Page 60: ...9 8 POWER PCB BOTTOM VIEW 57 ViewSonic Corporation Confidential Do Not Copy VG2030wm 1...
Page 62: ...59 ViewSonic Corporation Confidential Do Not Copy VG2030wm 1...