Mimio MimioProjector, Руководство по обслуживанию

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4-3 MimioProjector Service Manual
Chapter 4: Function Test&Alignment Procedure
4-4 I/O Port Test
4-4-1 VGA Port Test
Note: For all test patterns, please refer to the “MIMIO FINAl TEST” file.
1. Frequency and tracking boundary
Procedure - Test equipment: PC support HDTV resolution &
Independent graphic card
- Test signal: analog 1280 x 800@60Hz
- Test Pattern: Master
- Check and see if the image sharpness is well
performed.
- If not, re-adjust by the following steps:
(1) Select “Frequency” function to adjust the
total pixel number of pixel clock in one line period.
(2) Select “Tracking” function and use right or left
arrow key to adjust the value to minimize video flicker.
- Adjust Resync or Frequency/Tracking/H. Position/
V. Position to the inner screen.
Inspection item
- Eliminate visual wavy noise by Resync,
Frequency or Tracking selection.
- Check if there is noise on the screen.
- Horizontal and vertical position of the video should
be adjustable to the screen frame.
Criteria
- If there is noise on the screen, the product is
considered as failure product.
- If there is noise on the screen, use auto or manual
“frequency” function or “tracking” function to adjust
the screen.
- The PC mode functionally sure be workable include
support format with frequency and auto detected
functional will be workable.