HP 54201A scope input failure
Steve wrote:
Just picked up an HP 54201A digital scope. It basically works but
both input channels are dead. Will not recognize any inputs, and the
input self test fails. Don't have a service manual (and have been unable
to download one...on dial up here), and don't want to pay a bunch
of $$$'s for one to find out the hybrid circuits are bad.
Can anyone provide *just* the schematics for the input circuitry?
Has anyone else here been able to fix this problem?
Steve
HI,
Look for O/C inductors on the input stage - they are just
about the first component that the signal passes through,
you'll need good eyes - they'll be tiny....
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