Optoma EP745 Will not turn on

Mar 11, 2009

-   After changing the bulb, the projector wouldn't power up. The problem is the black cut out switch next to the bulb housing (hole is a chair shaped, in which the chrome microswitch arm can be seen.) The under side of the outer cover has a plastic finger that should go into that hole to push the switch to "ON" when the cover is put back in place, but the finger isn't designed properly, so it misses the switch arm and never allows power to get to the projector. The concept is good--keep idiots who didn't pull the plug from touching a live circuit while they change the bulb--too bad the engineers screwed up the design. I fixed it by jambing an "L" shaped piece of 1/4 x 3/8 inch .032 Al into the hole (with one leg diagonally-corner to corner, and one leg flat, on top of the switch cover) to keep the switch ON, then replaced the cover (finger still fits in hole and keeps new piece in place.)-   Mr-Sparks

Dec 30, 2008

-   yup
-   Guest

Dec 18, 2008

-   Have an Optoma EP745. Shattered color wheel. Am looking for a replacement part, but am concerned that I'll have the same problem when I try to power up my unit. -   ljcrabtree

Dec 11, 2008

-   I brought on too and after 6 month it will not turn on. Can any one help on this?-   Guest

Dec 31, 2007

-   here too

-   Guest