Question about Optoma EP739 Multimedia Projector
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Posted on Jan 02, 2017
SOURCE: Optoma EP739
The lamp cover has a disconnect that wont allow the unit to power on while the cover is off.
Try taking the lamp cover off and bending the little piece of metal you find underneith.
It worked for me.
Posted on Nov 27, 2008
Its getting old...and generating more heat...
There are fans inside the projector that **** in ambient
air and blow it across the parts...A quick fix might be
to lower the room temperatrue a few degrees...or
you could get a small fan, place it along side the projector
and have it blow additional air into the projector...
The projector is running at borderline temperature...
Also, make sure it is on a flat hard surface...and not
resting on a cloth or towel or rug...there isn't much space
between the bottom of the projector...to **** air in...and it
needs all that space...
You may want to make sure the AC line voltage is 110 -120 VAC
even a slight drop in this voltage will cause the projector to run
less efficient which means running hotter...
Posted on Jul 22, 2010
I had this problem before, i took a my household vacuum to all the vents on the unit and it freed the dust up. if your vac is very prowerful you may what to muffel it some how.
Posted on Feb 23, 2011
If you focus the image on a screen up close to the projector and notice small rectangular black and white spots, then you have pixel failures.
Posted on Jul 11, 2011
You can't clean the white dots this are litle mirrors on dlp chip that remain to be closed thats why you only see the white dots. You need to replace the dlp chip.
Posted on Jan 22, 2013
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