20 Most Recent Eiki XGA Avanti Series LCD Projector Projector Questions & Answers

If the cooling fan is not on, it is probably faulty and needs replacing or is jammed up.
Check the air filters are not clogged up.

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Try different source (laptop HDMI) to mske sure it is not cable box issue

hi heres the download link for the manual https://www.eiki.com/download/eiki/eiki-owners-manuals/LC-XB28%20owners%20manual.pdf

possibly max lamp usage hours have been exceeded

Please lets know the model

this has soething to do with bad timing of the lcd panels on the prism block. This is a common problem for this model. You will have to replace the entire optical, which is very costly. better invest your money in a newer model

this depends on the signal type coming from your sources best is using component signal ( Y-Pr-Pb) , by using the right cables and right settings for video inputs in the projector menus.In basic this should be possible.

buzz in sound is often caused by ground-loops, try to isolate audio cables with so called groundloop isolator transformers ( 1:1) available at high end audio shops or car audio centres

yellow means lack of blue. maybe a bent pin of the signal ( VGA) cable

burned in green polarisers or lcd panel. or accumulated dust on optical parts.