AR P315HO speaker problem

Discussion in 'Audio Equipment' started by xmitr, Oct 9, 2008.

  1. xmitr

    xmitr Guest

    I'm looking for a schematic and any other service information for my
    Acoustic Research P315HO speaker system. Two transistors shorted in the
    subwoofer amp, a 2SC3281 and an IRF640. I replaced them but there is still a
    large dc offset in the output, about 10.5 volts. Without a schematic I'm
    just fishing at this point.
    Don W.
    xmitr, Oct 9, 2008
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  2. The message <YRcHk.523$fF3.108@edtnps83>
    Probably[1] a short cct or leaky capacitor.

    [1] Probably, as in 'most likely'. Of course, there can be any number
    of alternative faults that can generate such a symptom. In the absence
    of a schematic, testing suspect capacitors is your second best strategy
    (you've, apparently. already tried your best strategy with those
    transistors :)
    Johnny B Good, Oct 9, 2008
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  3. xmitr


    Oct 2, 2011
    Likes Received:
    Does anyone know where I can send mine to get it fixed?
    supersoup, Oct 2, 2011
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