AVS Forum Special Member
Join Date: Jun 2005
Location: Northern, VA - Washington, DC
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This is one of those questions that appear on the forums all the time. Unfortunately, the answer often remains the same...
Call the manufacturer and ask how much it is for them to take a look at it.
Projectors really are quite custom built. While, they may use the same Texas Instruments DLP chips in them, the rest is all Casio, Panasonic, BenQ, etc. It's custom to that specific projector.
Without knowing projector repair, things get extremely tough. Most don't have the right diagnostic tools, and unlike PCs, which are built around some very standardized pieces of gear, projectors are custom.
So, it could be the power supply. It could be the light engine. It could be some bad fans. It could be the main board. It could be the inputs.
Unfortunately, without it being a super popular home theater model which has a history of one issue or another, there is never good information out there for those who want to try a DiY repair. You have to go back to the manufacturer and have them take care of the fix. These days that's often a serious investment that is more costly than the projector is worth. Or at least it will really make a person question getting a repair made.
If you are good with electronics, you can dig into it and check all fans, cabling, etc. and see if it all appears in good working order with tight connections. Sometimes it really is just a cable that has wiggled loose after years of use and moving it around.
AV Integrated - Theater, whole house audio, and technology installation in the Washington DC metro area.