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help please - optoma ep729 dead bulb

 
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the_avguy




Joined: 16 Mar 2007
Posts: 91
Location: Edmonton, Alberta


PostLink    Posted: Tue Aug 11, 2015 4:31 am    Post subject: help please - optoma ep729 dead bulb Reply with quote


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hello all,
Been rather busy lately and not much time to play with the projectors.
I got an Optoma EP 729 I want to set up for the kids but it shows the bulb as dead.
It turns on the fan comes on and then after a while the projector turns off and the dead lamp light comes on.
I have verified that the rest of the projector works by pulling the bulb and shining a LED flashlight through the opening.
The picture is there and it switches sources etc. with no problem.
I ordered and received a new lamp with housing but when I swapped it in the same thing happens. Sad
I guess the new lamp could be dead but before I send it back and get stuck with possibly paying shipping I was wondering if there is any thing else to check.

any help appreciated.

_________________
working ECP 4100.
marquee still in pieces, just gathering knowledge.
optoma ep729
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ecrabb
Forum Moderator



Joined: 13 Mar 2006
Posts: 15909
Location: Utah

TV/Projector: JVC RS40, Epson 5010


PostLink    Posted: Wed Aug 12, 2015 4:41 pm    Post subject: Reply with quote

It's probably the lamp ballast. It's a pretty common failure in digital projectors. No clue what to do for testing or replacement, but just relating what I've read in a number of digital projector threads.

SC
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the_avguy




Joined: 16 Mar 2007
Posts: 91
Location: Edmonton, Alberta


PostLink    Posted: Wed Aug 12, 2015 5:16 pm    Post subject: Reply with quote

I was afraid of that.
Looks like I might have to have a go at replacing the lamp with an LED.

_________________
working ECP 4100.
marquee still in pieces, just gathering knowledge.
optoma ep729
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