Service manual

5-1.5.2 Auto Image Adjust
Please select and enter Auto Adjust function on Main Menu to
see if it is workable. The Auto Adjust function is aimed to offer
a better screen quality by built-in ASIC. For optimum screen quality, the
user has to adjust each function manually.
5-1.5.3 Firmware
Test Pattern: Burn in Mode (Refer to Chapter III-3. Hot Keys for Function
Controls) - Make sure the F/W is the latest version.
5-1.5.4 DDC
Test Pattern: EDID program - Make sure it can pass test program.
5-1.5.5 Fine Tune and Sharpness
Test Signal: 1280 x 1024 @ 60.0kHz
Test Pattern: Line Moiré Pattern
- Check and see if the image has noise and focus performs well. Eliminate
visual line bar.
- If not, readjust by the following steps:
(a) Select and enter “Auto config function on “Auto Adjustto
adjust the image to eliminate visual wavy noise.
(b) Then, select and enter “Sharpnessfunction to adjust the clarity and
focus of the screen image.
5-1.5.6 White Balance
Test Signal: 640*480@60Hz
Test Pattern: Full White and Black Pattern
5-1.5.7 R, G, B, Colors Contrast
Test Signal: 1280 x 1024 @ 60.0kHz
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.
5-1.5.8 Screen Uniformity and Flicker
Test Signal: 1280 x 1024 @ 60.0kHz
Test Pattern: Full White Pattern
- Check and see if it is in normal condition.
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ViewSonic Corporation Confidential
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