Question about RCA P46924 46" Rear Projection Television

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32" Trinitron warms up picture goes black

Hi, I have a 32" Sony Trinitron. The picture is great but after a short time (a minute or two) the image starts to deteriorate. Blacks lines appear on the screen and seconds later the image fades to black. If I turn it off and on the same process happens again, only quicker because the set is already warm. I would say that the tube is fine given that the image is good...even if only for a few seconds. Could it just be overheating? Capacitors? Does it just need cleaning or are we talking about some real $ to service it? Thanks for the help, Strobelight

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You need to call for service now that the unit still turns on,the problem will become expensive if you try to use it like this,right now the set might have loose conections in the power supply,horizontal driver transformer.ETC.Be safe and call a service tech.

Posted on Sep 25, 2006

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Posted on Jan 02, 2017

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I had the exact problem. Turned it off at night, next day nothing. Set is KV32FV16, manuf. in 2000. Repair tech. found bad fuse that was all, set now working. Fuse located in lower right hand side of chassis. Fuse appeared to have deteriorated rather than blown. Good luck.

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1 Answer

Picture goes black on and off but sound still on


This could be a sign that the picture tube is starting to fail. To prove this try the following: Please note that there are potentially dangerous high voltages present inside the set, so be careful.

Unplug the set and remove the back. Locate the flyback transformer (lower right when facing the back of the set and has a lare red wire coming out the top.) There should be 2 controls on that part. One should be labeled screen the other focus. Turn the screen control slightly clockwise. Turn on the set. If the blanking stops, then this will "fix" the problem for a short period. This is not a final fix, but a short tern remedy to give you time to locate a replacement set.

If the above does not resolve the problem, please update this and we'll investigate further.

Thanks,
Dan

Nov 03, 2009 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

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This problem usually lies on the horizontal output transistor, try to check also for shorted diode. you can buy ftom any electronic parts dealer or radio shacks stores

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No picture, Standby blinks then goes out


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