Question about Proscan PS61700 60 in. Rear Projection Television

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Proscan PS61700 Beeping no picture

Proscan model # PS61700 When tv is plugged in no picture or sound, only beeping noise. When I unplug the tv the beeping will continue for a few seconds but at a slower pace. Any ideas, easy fix?

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  • doclen Mar 03, 2008

    please give me a schematic drawing of the unit.

  • Frank-ay Jun 07, 2008

    I have the same problem with my Proscan PS61700; dead with a buzz. I have some experience with TV repair and have determined the horz output xsistor is shorted and most likely the flyback is bad, since the power supply tries to start.



    So one may ask then why am I posting this if I know what's wrong... Well an experience technician said he has had no luck fixing this chassis, RCA type as well. He has repeatedly replaced flybacks and had several units come back with the same problem a week later of sometimes 3 months later. He recommended not to fix stating that the replacement flybacks are not to spec for some reason and this chassis seems to be the only one.



    So my question is: has anyone seen this issue with the flybacks repeatedly failing for defective reasons OR is there something else that has failed causing the flybacks to possibly over-heat and fail again.



    Thanks for the help in advance,

    Frank

  • janzalone1 Jul 18, 2008

    I have a RCA P56926 with the same problem. It happened just after a close lightening strike.



    Has anyone ever figured out how to repair this problem?

  • bifman Sep 17, 2008

    Identical problem with Bush WS6674.

  • maxie66robbi Oct 07, 2008

    when you turn the tv on the power green light flick on about three time then shut off.

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I have a 60in Proscan Projection TV. My picture is out and the TV only beeps.

Brian Allen

Posted on Mar 17, 2008

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There are two STK on conv. board, even if they are not 392-180.

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Here is how an stk looks like:

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