How to test my sustain board to make sure my buffers won't be killed?

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  • capkid
    Badcaps Legend
    • Oct 2010
    • 1339
    • United States
    #21
    Re: How to test my sustain board to make sure my buffers won't be killed?

    I got as far as step one of the flow diagram before I found an issue. When I disconnect the SC2, SC23, and SC20 connectors, the TV stays on and has sound. According to the diagram, the SC board is most likely defective - doubt it.

    I tried disconnecting the D board from the SC board, and the TV stayed on with sound and no picture. The SC board's LED wasn't lit. I'm guessing that the TV stayed on because there was no feedback to shut down the TV.

    I just noticed that the panel seems to buzz a bit louder than normal for the brief time that it illuminates

    Edit: Correction - the panel buzzes quite a bit louder than normal. So, it looks like this one is trash.
    Last edited by capkid; 11-30-2013, 01:33 PM.
    LG Plasma Mal-Discharge Correction Service

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