ViewSonic Q9-1, Service Manual

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5-1.5.9 Dead Pixel and Line
Test Signal: 1280 x 1024 @ 60.0kHz
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.
5-1.5.10 Mura
Test Pattern: White, RGB, Black, & Grey
Test Tool: 10 % ND Filter
- Check if the Mura can pass 10 % ND Filter.
5-1.5.11 Check for Secondary Display Modes
Test Signal:
Analog: 640*350@70Hz; 640*400@60Hz;640*480@50/60/67/72/75/85Hz;
720*400@70Hz, 800*600@56/60/72/75/85Hz;
832*624@75Hz, 1024*768@50/60/70/72/75/85Hz;
1280*1024@60/75Hz
- 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.
5-1.5.12 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.
5-1.5.13 Power off Monitor
Turn off the monitor by pressing “Power” button.
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