Question about RCA P56812BL 56" Rear Projection Television

1 Answer

No pic no sound just ticking

I have a 56" rca p56812bl which was given to me. When i plug it in all i get is a ticking noise from the back and it won't power up. when i disconnect the power supply the ticking doesn't go straight off it slows for a few beats then stops. Any ideas on a fix. Thanks

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  • babarca123 Jan 05, 2008

    I have RCA p56812bl, TV was fine until few days ago while my wife was watching then she heard couple noises and the screen went blank, now when i try to power up all I hear is the ticking noise as if it is going to come up but nothing,
    any help is appreciated

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  • 192 Answers

This set normally has problems in the horizontal and high voltage circuit. The horizontal output will short out and I often change the high voltage transformer. The high voltage splitter is another one of the usual suspects. Since it's ticking at plug in, then, I would look at the secondary of the high voltage transformer or the regulator circuit. Checking the the horizontal output first for a short and if ok, checking the B+ voltage on the collector would be my next step. That should give a good thought as which direction to go. Hope this helps.

Posted on Apr 01, 2007

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Hi i got this TV from my uncle he said it was making a "cheeping like" sound so i said i would take it, im a sophomore at a tech school and have good experience with electronics work (I'm...


Hello matter0464 and a warm welcome to Fixya. The issue you are asking about is actually rather common with the RCA P56812BL after it gets a few years on it. The problem is most likely the high voltage circuit located on the main board. I would start there before looking elsewhere. Also inspect the 195 AP fuse on the main board as well because it is known to blow out periodically. Well I hope this was helpful and good luck to you. Thanks for using FixYa.

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