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8590A Spectrum Analyzer

Discussion in 'Electronic Repair' started by Kim Würtz, Sep 20, 2006.

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  1. Kim Würtz

    Kim Würtz Guest

    Hi folks

    I have got an old 8590A Spectrum Analyzer from my company,
    unfurtunately with a defect. The amplitude levels shown on the screen
    is app. 10 dB below the actual applied input level, so the attenuator
    or input circuit apparently has a defect.

    Does any one have a service manual, diagrams etc. of this model ?

    Thanks in advance

    Kim Würtz
     

  2. It is probably a damaged mixer module. We had several fail in our
    8590As over several years of heavy use. There is a maximum power level
    marked by the input connector, and if you exceed it, you can damage, or
    completely destroy the mixer.


    --
    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
     
  3. Kim Würtz

    Kim Würtz Guest

    Hi Michael

    Thanks for your quick response. Do you have any
    further information on the mixer (schematics and/or type),
    so I am able to replace it myself.

    Best regards
    Kim Würtz
     
  4. Kim Würtz

    Kim Würtz Guest

    Thank you very much Michael !
     
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