Optoma EW605ST, Service Manual

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EW610ST/EX610ST/EW605ST/EX605ST Confidential
4-8
4-8 Engine Adjustment
Note: - This step must be done only when engine is changed.
Procedure - Test equipment: video generator.
- Test signal:analog 1280x800@60Hz
(EW610ST/EW605ST)
analog 1024x768@60Hz
(EX610ST/EX605ST)
- Test Pattern: Full Screen
- Test distance: 98cm
- Push Focus Pole align to the position where
has a mark.
- Adjust Back Pole to let the entire image
clear, crisp and sharp, then fix the Back Pole
with glue.
Inspection item - Check the focus under the pattern of
Full Screen by the distance of 98cm.
- If focus is unacceptable, please readjust
the Back Pole again under the distance
of 98cm.
(Blur words on one of the corner after
adjustment is acceptable. However,
the word should at least be recognizable.)
Full Screen
Mark
Focus Pole
Back Pole