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Sansui 9090 Vintage

Discussion in 'Electronic Repair' started by Gayle Dayton, Nov 1, 2003.

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  1. Gayle Dayton

    Gayle Dayton Guest

    I have a Sansui 9090, it does play but left channel is very distorted,
    and turning volume up will cause overload circuit to kick out. Any ideas
    what to look for?
     
  2. Jerry G.

    Jerry G. Guest

    Troubleshoot the left channel. We use a scope and audio generator to check
    where the distortion is coming from. The preamp section is most likely
    good. Most of the time, this is from the pre-output driver stage or the
    output stage itself. It can be anything including bad caps, openish
    resistors, or defective transistors.

    It will take someone with the training and set-up to service your amp. There
    are many service centres that are equipped and have personal to do this for
    you. The cost will not be too much in relation to the replacement cost of a
    new amp of the same quality of the one you have.

    --

    Greetings,

    Jerry Greenberg GLG Technologies GLG
    =========================================
    WebPage http://www.zoom-one.com
    Electronics http://www.zoom-one.com/electron.htm
    =========================================


    I have a Sansui 9090, it does play but left channel is very distorted,
    and turning volume up will cause overload circuit to kick out. Any ideas
    what to look for?
     
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