Question about RCA D52W20 52" Rear Projection HDTV-Ready Television

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Have sound, lose picture. D52W23

After being on for a period of time (varies from several minutes to hours) the picture will dim drastically and within a few seconds fade out completely leaving only sound. Turning it off for a couple minutes restores the picture but the problem repeats eventually.

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Sounds like a solder issue. try resoldering the Ics that are attached to heat sinks on the Board that has the flyback also resolder the flyback pin connections

Posted on Jun 18, 2008

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Hi,
KP-51HW40 shuts off due to incorrect white balance and blue arch lines is an evidence of that incorrect white balance. I hope tv standby red light would flashing 5 times then 3 seconds pause and again 5 times when tv shuts down.
This is rear projection tv that has three picture tubes (red-green-blue) inside to generate picture that projected at front screen. These three picture tubes must be drive with correct drive voltage to produce good picture of each color.
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your problem is no doubt in the stand by circuitry You will have to trouble shoot your set as this is a thermal issue and you will need to do the testing of the various components while it is experiencing the trouble to find the problem. Let me know if you wat a manual. I can provide a link where you can get one .

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