Question about RCA P46924 46" Rear Projection Television

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No picture I have sound but the picture goes blank intermittently, no lines atl, just black. Any ideas? Vic

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Re: No picture

Common problem with that chassis and you need to take care of it now or set will fail and short several parts. Coil L4401 needs to be removed from set, scrape the leads (wax from insertion process) and re-install, solder it back in & you`ll be good as new.

Posted on Nov 29, 2007

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Re: No picture

I tried to explain that the problem I am having is NOT with an RCA but with a Panasonic 27 Inch conventional television. I could find no other way to edit the problem once it was posted. Your answer was appropriate for an RCA but how about Panasonic? Would applericate a reply.Thanks.

Posted on Dec 02, 2007

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Rear projection 48 inch mitsubishi. Actually intermittantly goes blank, then back to picture, every few seconds. Not sure it's worth repairing, although it's been working well for a number of years.

A number of things will cause set to go "blank".

The most common problem is sets like this develop bad solder connections which is normal from age etc.

Provide me with exact model number so I can assist you more. You do have to be careful fixing a set over 10 years of age as some parts are no longer available.

These sets are very well protected, if a vertical problem where loss of picture, the set will blank all three picture tubes to prevent a line or spot being burnt into all three tubes.

The more you tell me the better I can assist you---model number and year set made will be on the back of the set.


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You have problem with the power inverter, in you tv it might be part of the power supply, in which case you will need just one board. Julio

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Is it ok when you watch regular TV thru the cable or sat?

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This sounds like the ballast for the lamp is going. The ballast sparks the lamp, and if it starts to go, there's not enough current to keep the lamp sparked. Thus it starts to fail: it's the same principle as a fluorescent lamp fixture. Ballasts are available at any service depot, but they're fairly expensive, and perhaps prohibitively so; you may want to look at replacing the monitor itself.

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Sounds like bad picture tubes. please post a model number, also are you seeing arched lines going through the picture? these can useually be seen best on a blank input wiht a black background.

Thank You

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Sounds like the CRTs are going into protective blanking due to the vertical output ic needing to be resolderd. Try resoldering the vertical IC that may possibly fix the issue.

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resolder the vertical output IC . bad solder there can make the CRTs blank for protection and you will lose the picture when the vertical drops out.

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When the screen goes blank, hit any remote function that will show up on the screen-like volume bar. If the display is missing as well, then you have a tv problem. If the volume display is there when the tv picture is not, you may require a software upgrade.

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to thus problem its very simple .! try to resolder at the back of the picture tube board.

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