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schematics for zenith tv zb2777h

Discussion in 'Electronic Repair' started by Derek Agar, Feb 22, 2004.

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  1. Derek Agar

    Derek Agar Guest

    Hi,
    I have an older zenith tv model# zb2777h
    Does anyone have any schematics/service notes on this? I had called
    zenith and they don't support that anymore and neither do the other
    places that I have tried.
    The problem is that the sound does not work. The amplifier seems
    fine. I traced it back to the main power board that is not supplying
    a low voltage for driving the ICs on the amp board. None of the
    components seem fried and none of the fuses are blown. Everything
    else seems to be fine.
    Thanks.
    Derek
     
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