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Please Help with Vizio M420NV Problems

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    Please Help with Vizio M420NV Problems

    I've replaced both the main board and the power supply board. The logo now goes from amber to white when powered on and I see the LED backlights flash on when powered on via the remote.

    But I get no video or anything visible on the screen.

    The main board appears to be a new one and I obtained it on Ebay. Is there anything I'm missing here?

    There is a small power button board that has a jag wheel.. but I'm hard pressed to say that is failing.

    #2
    Re: Please Help with Vizio M420NV Problems

    Nevermind..ribbon cable was loose in connector..problem solved!

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