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I have an Optoma EP 739 projector. I turned it on and heard a 3 second grinding noise--it stopped for 3 seconds and made the noise again. The bulb did not come on during this grinding period.

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Posted on Nov 06, 2008

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Hi,

It sounds like the projector itself has a fault. Sadly it's often uneconomic to repair budget projectors which are out of warranty when the cost of repair is compared to that of replacement. You should speak to Optoma support and see who their local agent is, and then ask for a quote.

UK support can be found here

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1 - Hold the clear tv buttom until all 4 light flash red
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Hi, I'm not sure if it's the same problem I had..
I had it on picture mute, for maybe 15 mins, which may not have been a good idea. While it was muted, it made a sparking sound, and then a very loud grinding noise. When turned off, the lound noise stops, and the fan continues as usual for about a minute. As soon as it's turned back on, the grinding noise is back. But the logo seemed to display ok.

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i would try to email optoma or parts guy localy that sell or fixes these see if he can order u it ok best way thx nick

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