Question about Panasonic PT-56WXF95 56" Rear Projection Television

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Fuzzy picture, oval shaped, scrolling up slowly

RCA 19" TV, made in 1985. I know its old and not worth fixing, but i hoped somebody could point me to what circuits might be causing this. I have some experience troubleshooting electronics. The picture used to be perfect, now on any channel, even with no antenna hooked up, the screen is squished into 2 oval-shaped windows that constantly scroll upwards. The picture itself stays centered on the screen, you can still see it through the oval-shaped "windows". It takes about 30 seconds for the windows to go from the bottom of the screen to the top and then wrap around back to the bottom. I can take a picture if it would help. Thanks.

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I would start by checking the large filter capacitors in the power supply. I can't be sure since I'm not seeing the set, but it sounds like you're describing AC ripple. In a 20-year-old set, some of those electrolytics will be drying out. A few replacements may take care of the trouble for you.

Posted on Jun 19, 2009

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