Question about RCA P46924 46" Rear Projection Television

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Rca p46813bl convergence problem bowed in the

Rca p46813bl convergence problem bowed in the middle,at top and bottom

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  • SD Tech
    SD Tech May 11, 2010

    OK, I know this set--it almost never has convergence problems except for one thing. What kind of skill do you have with checking something with a meter? With the set unplugged, remove back cover--there is a circuit board above the main boards; it is about 10 inches wide and 4 inches tall---on the far right side there are several diodes---two of them are larger then the others--what happens here is one of the two diodes shorts and the convergence will be out the window---the diodes can be tested and better not read like a fuse--IF EITHER READS SHORTED--You just found your problem---part will have a location number marked under it on top of the board--5.00 dollar part. You have a multimeter which checks voltage or resistance? LET ME KNOW IF I CAN ASSIST YOU IN ANY WAY--this is one of the few problems this set ever had---much better set then the RCA sets made after it. SD TECH

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  • RCA Master
  • 14,553 Answers

OK., I know this set very well. It almost never has a convergence problem.

With the set unplugged, remove the back cover--there is a small circuit board mounted ABOVE the main boards--it is about 10 inches wide and 4 inches tall---On the far right side of it are several DIODES---two are much larger then the rest--what usually happens is one of the large diodes is shorted--5 dollar part---the board only has a few plugs and 4 screws that hold it in---easy to remove--check all the diodes(the two large ones first)

If either of the large diodes read like a fuse you FOUND YOUR TROUBLE.

LET me know if you need ANY help or Advice--I am here to help people---I have seen several sets identical to yours with the problem you describe.

Regards, SD TECH

Posted on Oct 07, 2009

  • cms071959 Sep 05, 2010

    I have a set that seems to have the same problem. Both of those diodes read good and appear to have been replaced already. Is there another part I should be looking at?

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