Question about Optoma EP753 Multimedia Projector
When I turn on my computer the projector searches for the vga input, and finds it, but then it looses it. this happens about 3 or 4 times, then it won't find it anymore. I have been using this compaq laptop pc with this optoma projector for about a month and it has been working great, now it all of a sudden is doing this thing and I don't know what to do about it. Please help!!
-toggle the laptop display using the FN keys and F5 I believe. -lower laptop resolution to 800 x 600 -look in laptop display properties for lcd or external display settings, see if it (external crt) has to be enabled on the laptop first.
Posted on Aug 26, 2007
I bought mine new... hooked it up and got the same response. I would have torn my hair out but I am bald! Checked everything. Great frustration. Finally, I thought to replace the cable with one I have on my monitor. Worked perfectly! A brand new cable and it was faulty! Contacted the company and they sent out a new one. Even sent a packet to ship my bad one back so they could find out what happened. No connection problems with the new cable.
Posted on May 22, 2008
You have a blown bulb. I have the same projector and it had the same problem. The bulb is blown replace it and you should be fine.
If you are not sure of my solution you need to know that your projector will look like it is starting up and the bulb will partially light up but never come up to full brightness, then the projector will shut down. This will happen over and over until it just gets to the point it just turns on (the fan comes on and then about 30 - 60 seconds later the fan turns off.
Replace the bulb and you should be fine.
Been there done that!
Posted on Sep 25, 2008
Possible cause is overheating.
Do you hear the fan working?
What happens when you use the lowest level light output?
Does it run longer?
Also possible cause is a faulty temp sensor.
AC wire connection may not be firmly pressed in socket.
Posted on Apr 09, 2009
What type of cable are you using to connect the projector to your laptop? if VGA you have ti press "FN" and F5 or the F key that has a monitor symbol on it. Try using a different cable as well and if it has an auto search button on the projector try pressing it.
Hope this helps
Posted on May 10, 2009
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