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I can hear the tv but after flickering for a few minutes the whole screen goes black. If I turn it off at the mains for a while it comes on again but only for a few minutes then goes black again. The sound never goes

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There are many things that can cause this. Depending upon the type of projection set you have, the particular solution will be different. Can you please update this posting with the make and model please?

Thanks,
Dan

Posted on Oct 29, 2008

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Fault with the main power supply regulator board. Ubnormal DC voltage output from it. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
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caypianan@yahoo.com

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