Infocus lite pro 720

There is three LCD in the projector red, green and blue. If green LCD make any fault mean line or dot or dots then screen show these line or dot in purple color:
If line is very straight and sharp edges then green LCD is faulty and need to be replaced.
If line is not straight and faded edges then some thing in LCD block so your projector need service

Most likely the main board call TSC 1-888-942-2929
they probably have it. (not cheap)

Dear Danexstrom,
Download the manual form given link and go through it. This will solve your problem..
http://www.retrevo.com/support/InFocus-IN72-Projectors-manual/id/1081bh632/t/2/

Adjust the horizontal in the menu then try the overscan adjustment. If the image does not look dim you do not need a lamp.

This is a clear indication of a new bulb requirement

most likely a misconnection between the main board and the dmd board. if not that, you'll have to replace the main board.

Try a firmware upgrade.

http://www.infocus.com/Support/Products/Projectors/IN76.aspx

your display settings may be off, so change settings to factory reset and you may have to drop the resolution on your computer. you may also have a bad cable, so try a different cable.

Hi there

That is a definate Mainboard replacement.

Must warn you that it could turn out to be a expensive exercise