HP 54201D scope help

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#25

From: gcd
Date: Sat, 17 Apr 2004 04:19

25 lines
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Hi,
I have two of these old monsters and needless to say they have faults.

I'm hunting some uselfull service info, ie schematics of the analogue /
digital board and parts cross references for the hp parts. The hp service
manuals i have yield little info and only schematics for the PSU.

One scope will not trigger on ch 2 and produces an interpolator fault. Ch2
displays fine

The other fails the ch2 rt/rr tests  - does display ch2 but the offset is
incorrect. I have to manually offset by 1/2 scale to see the waveform. could
be a cal issue?

They seem to me to be related faults, as the interpolator and the offsets
are ( i think) related in circuitry. perhaps a common type of fault with
these?

Can anyone help?

Thanks
Greg

-- 
gcd  (delete everything else) A.T. austarmetro.com.au

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