Question about InFocus LP640 Multimedia Projector
If these blemishes look like maybe its fuzz or something, you can remove the top cover and use compressed or canned air to blow out the area where you see 3 orange flat cables going under the main board into the lcd panels. blow it out good and be careful not to disconnect the cables as that can be a pain for the inexperienced. If this doesn't fix your problem, then I would say that the lcd panels have been burnt due to shutting the projector down improperly numerous times and no it is not worth repairing unless you get a known good light engine for less than the cost of a new projector plus labor-- unless you DYS.
Posted on Jun 11, 2010
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Posted on Jan 02, 2017
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Aug 17, 2011 | Hitachi CP-X1250 Multimedia Projector
After turning on the projector, press "+" and "-" buttons on the control panel
simultaneously for 3 seconds and release the buttons when screen goes blank.
2 Press "+" and "-" buttons again to exit the diagnostic mode.
3While in Self-diagnostic mode, the screen will run a seven-color-cycle test as
Red--> Green--> Blue--> White--> Watchet Blue--> Dark Green--> Yellow.
Ensure that the colors of the test pattern are correct. Contact Dell if the colors are
not displayed correctly.
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If the problem is what I describe as a blue haze over the entire image projected, I was told this is a defect in the cable - we have a Dell Video Projector 2300 - and it takes only a dell VGA cable.
So, the problem is in the cable - solution is replace cable.
Feb 28, 2007 | NEC VT45LPK Projector Lamp for VT45
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