Service manual how do i take the cover off of my optoma EP721

SOURCE: Optoma projector overheat issue - fan comes on but switches off

Most projectors have air filters. Yours may need to be removed and cleaned. No air flow = overheat.

SOURCE: I Have an optoma projector ep721 I plugged all the

Source input not geting signal,check with other input

SOURCE: I have a Optoma EP721. It now projects verticle

Hi,
It sounds like you have a projector which is in need of professional repair. You should eliminate source material problems first though by checking the projector with alternative input sources, ensuring that you also check the cables, and various inputs on the projector.
If the lines are present on all the inputs then the fault is internal to the projector. This will require professional repair. The first point of contact should be Optoma at www.optoma.co.uk/support.aspx (UK) or http://www.optomausa.com/ (USA). They should be able to give you an idea of ow much it may potentially cost to have your projector repaired and (most importantly) check whether it is under warranty. Most Optoma projectors ship with 3 year warranties these days.

SOURCE: my Optoma EP721 projects the

WELL IF YOU HAVE CONNECT IT TO A LAPTOP THEN PRESS FN AND F2.. (F2 OR SOME OTHER F KEY WITCH IT SWITCH THE SCREEN FROM LAPTOP TO PC AND OPPOSITE.. IF IT IS ON A DESKTOP COMPUTER THEN GO TO YOUR VIDEO CARD SETTINGS AND SEE IF IT IS TUNED AS AN EXTENDED DESKTOP.. IF YES THEN CHANGE IT :)

SOURCE: I need the main board

try ebay for a spare