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Akai amp Am-U04

Discussion in 'Electronic Repair' started by Patt, Jul 10, 2007.

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  1. Patt

    Patt Guest

    I turn on my amp and then turn on the cd or the tuner, which are both
    plugged into the back of the amp and then there is this very loud sort of
    cracking crackling noise from the speakers. Even if I do not touch the
    volume control there is that loud noise. It kind of scares me. Sometimes if
    I slide the volume control back and forth it quits. Also for no reason the
    speakers will cut in and out. Could it be some dirt in the system.
    Patt.
     
  2. Arfa Daily

    Arfa Daily Guest

    Sounds like a job for Switch Cleaner Man ...

    Seriously though, if it really does seem to be related to the volume
    control, and it's a slider, these can usually be recovered without too much
    fuss, by standing the amp on its back, then squibbing a *small* amount of
    switch cleaner / lubricant into the slot that the contol's operating lever
    runs in. Once it's in there, scrub the control vigourously back and forth
    for 5 seconds. If after doing this, the control feels a bit 'stiff', due to
    the switch cleaner having washed out some of the mechanical lubrication, you
    can usually get it feeling ok again by putting just a drop or two of light
    machine oil in there. Failing doing it this way, it's a case of having the
    pot out and replacing it ( likely not available if it's an old Akai ) or
    stripping it and cleaning and relubing it, which can only be done if it's a
    metal bodied type. If the pot is badly worn, then none of these methods
    other than replacement, will cure it, but the fact that it seems to recover
    for a while after you 'work' the pot, would indicate that you stand a good
    chance.

    Arfa
     
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