On Fri, Dec 3, 2021 at 12:15 AM, Mike Merigliano wrote:
There is an excellent document on fixing the older analog scopes called
"Troubleshooting Your Oscilloscope: getting down to basics" (I can send this
too). It really stresses diagnostics, many of which involve the front-panel
(switches, etc.), and discourages taking the cover off until you have a fair
idea of what part of the scope is faulty.
Mike,
Great advice that needs to be repeated.
"Troubleshooting Your Oscilloscope: Getting Down to Basics" is a cornerstone of the repair process. I was fortunate to find this early on, when entering this hobby. This technique is just good basic diagnosis, and a system which can be applied to any piece of complex equipment. I would encourage anyone who is getting into (or back into) this hobby/profession; to follow the procedures outline in that work. This will eliminate many a "wild goose chase" or "rabbit hole exploring". I understand that it is tempting to rip into the scope (been there, done that). Along with the troubleshooting guide, a study of the Service and Operators manual in general and the Theory of Operation or Circuit Description in particular; will be most helpful.
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Michael Lynch
Dardanelle, AR
Michael W. Lynch