Question about Toshiba 50HM66 52" Television

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50HM66 Toshiba . no lamp, lamp good, replaced main power supply board,aux. power supply , and the lamp ballast, still no picture, starts up and trys then goes off and then re-try, I get 15 yellow blinks, any ideas ?

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  • kenolson77 Aug 25, 2010

    Ok, checked connection and is good, used multi-meter, showing 102 vac at the bulb plug in socket connection, now what ?

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The 15 yellow blinks indicates a problem with the lamp engine. Either the lamp is not seated correctly in the TV set -  try removing it again, then pushing it in firmly, ensuring that it clicks into place - or the connectors are faulty - test the connectivity with an ohmmeter.

Posted on Aug 25, 2010

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  • Azrael SRL Aug 25, 2010

    In that case test the power source, especially the 5 volts line to the processor, since the error message is commanded by the control processor and it's clearly malfunctioning.

  • kenolson77 Aug 29, 2010

    I am not sure which board is the processor, I have identified the interface board, any idea ?

  • Azrael SRL Aug 29, 2010

    Just follow the connections fro the interface board right to the processor - you can't miss it, it's big.

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