Question about Panasonic PT-51HX43 51" Rear Projection Television

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Panasonic TV PT-51HX43G Red LED Blinks Once Every Three Seconds

I am interested in buying a used Panasonic TV that red LED blinks once every three seconds. The owners state that they replaced two IC convergence chips (STK 392-110) but it didn't fix the problem and from what they have read online, it sounds like it's possibly a resistor or a fuse. If it is a resitor or fuse how expensive would it be for the parts?

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  • alex85295 May 14, 2009

    So does red LED blinking once every three seconds mean anything? Is it possible that just replacing the resistors will fix the problem or could there be damage to the new convergence IC's that were put in?

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The resistors are part of the feedback for the convergence IC's and there is another set at the front of the board that are for the power supply. As for price, these are not expensive, but they are exact. You must replace them with the same values. I would ask where they got the STK392-110's, cheap is not always better on these.

I hope this information allows you to resolve this issue. If you need further assistance, please post back with a comment to this thread.
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Thank you for your support and patience as I reply.

Posted on May 14, 2009

  • John Snow
    John Snow May 14, 2009

    Yes the new convergence IC's could be damaged if the resistors were not changed out when they were replaced. I have seen this many times in my Television repairs. I just fixed one of these sets about a month ago. The resistors and IC's may still need to be replaced, but I think that I got the IC's for about $65 each, and they were panasonic parts.

    Please let me know if you need any futher help and I will be glad to help you.

    asnowman

  • Joey Reagan Jul 30, 2011

    My PANASONIC TH-50PX77U is blinking red every 3 seconds as well. I've already replaced the power supply board and have gotten the same results. Where do I go now?

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