Considering an HP 54510A...BUT... A/D doesn't pass Self Test

[KD7NKN]

Hello,

I have the opportunity to purchase an HP 54510A  O-Scope for almost nothing.  The only problem seems to be it doesn't pass the A/D converter self-test.  It passes all other self-tests. 

Does anyone know; 1) what are the possible causes? 2) How difficult would it be to fix?

Any help you may be able to offer would be greatly appreciated! 

Best Wishes,

Cliff

 

[Kleinstein]

The HP 54510A is supposed to be an older 250 MHz digital scope, not a spectrum analyzer. It will probably have an FFT function, but this would be severely limited in dynamic range for spectrum analysis.

With a bad ADC chances are it would be really difficult (maybe impossible because on unobtanium parts) to repair.
There is still a chance that it is something simple (e.g. clock or supply), but it is a gamble - so almost nothing looks like the correct price.

[KD7NKN]

Thank you so much for the information...and wisdom regarding parts etc.  My apologies for mischaracterizing the HP 54510A as a signal generator; I know it's an oscilloscope but my fingers did a poor job of translating.   

Thanks again!

Cliff