Question about RCA P52960 52" Rear Projection Television

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RCA P52770EB Rear Projection TV, Comes on with only red screen

TV worked fine and had great clear picture. We moved the picture to a new house (during cold weather in case that makes a difference) and it came on with everything fine for about 10 minutes and then the Blue and Green Tubes went off with only red working. Reset power a couple times and all three would come on for a few minutes and then go back to red only. Now only the Red comes on. When I removed back panel, Blue and Green tubes are barely glowing while Red is bright. Can anyone help with a suggestion? I was told that the Blue and Green Kein Socket boards needed replaced because they looked to be corroded from some small leakage from the tube coolant. Is this a possible problem?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1030 Answers

SOURCE: RCA D52W20 Blue Tube doesn't power on

From your description it does sound if the blue crt has failed. But it can be the crt board or a high voltage issue. intermittantly like that could be a connection problem. is there any hissing ..cracking or smells?

Posted on Dec 17, 2007

tvtek
  • 1284 Answers

SOURCE: D52W19 No pix, sound good - now green light blinks, no come on

First of all you need to find out which CRT leaked and replace it before any other repairs are done. The clear liquid is conductive and has done damage to the CRT board or boards.

Posted on Jun 26, 2008

  • 1030 Answers

SOURCE: RCA HD R56WH78 projection TV, picture just got ascew,

You are haveing form the sounds of it convergence problems. I see this all the time on this set at the shop. FIrst question in customer menu under setup do you have the convergence option if not consult the tips and tricks section under fl231 problem. if you do have this you may have other troubles the convergence is controled by three seprate boards.

Posted on Nov 11, 2008

texasdan
  • 60 Answers

SOURCE: Is the tubes going out on my rear projection tv?

If the red, green, and blue colors are separated like a rainbow, then the convergence amps are going out. This set has a common problem of two electrolytic caps going bad. The caps are in the upper left-hand corner of the main board and will have a bulged top if bad.
I would not think the picture tubes are bad, especially all at once.
- Dan

Posted on Apr 28, 2009

johnnydiode
  • 647 Answers

SOURCE: D52W20BYX1 Green problem

If you unplug the Green CRT board (neckboard) do you get the other 2 tubes comming on?

Posted on Sep 19, 2009

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