HP 8920A Communications Test Set - Repair

Discussion in 'Electronic Equipment' started by Electric dabbler, Jul 31, 2006.

  1. Hi,



    I have acquired one of the above and unfortunately it has a fault.



    The generator functions work OK but the Spectrum analyser and receiver
    functions do not detect any signal. When I got it, the analyser worked a
    bit but the levels were way off (too low), while watching the display the
    trace suddenly became noisy then all the input signal was lost.



    I have the 'service manual' but this is repair to module level only.



    The self diagnostics tell me that the analyser assy has a 'medium'
    probability of being faulty.



    Is there any chance of fixing one of these to component level? Do schematics
    exist?



    Any help would be gratefully appreciated.



    Philip
    Electric dabbler, Jul 31, 2006
    #1
  2. Hi Phil, We repair those units. Most repairs run about $800. see
    amtronix.com for contact info or call 716-763-9104 Thanks ! Rick

    Electric dabbler wrote:

    >Hi,
    >
    >
    >
    >I have acquired one of the above and unfortunately it has a fault.
    >
    >
    >
    >The generator functions work OK but the Spectrum analyser and receiver
    >functions do not detect any signal. When I got it, the analyser worked a
    >bit but the levels were way off (too low), while watching the display the
    >trace suddenly became noisy then all the input signal was lost.
    >
    >
    >
    >I have the 'service manual' but this is repair to module level only.
    >
    >
    >
    > The self diagnostics tell me that the analyser assy has a 'medium'
    >probability of being faulty.
    >
    >
    >
    >Is there any chance of fixing one of these to component level? Do schematics
    >exist?
    >
    >
    >
    >Any help would be gratefully appreciated.
    >
    >
    >
    >Philip
    >
    >
    >
    >
    Amtronix Instruments, Inc., May 13, 2007
    #2

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