[R-390] Troubleshooting "unrepairable" radios

[Joe Foley]

--- Tom Norris <r390a at bellsouth.net> wrote:

> Jon's solution reminded me of a Troubleshooting
> Adventure I had no  
> too long ago on a radio marked "not repairable"
++++++++
Good story, Tom,

Whenever I'm discussing troubleshooting I always want
to know WHO worked on it last and what their level of
expertise is.  It's important!

I want to know what they might have looked at and what
they have seen in the past.  If that person is a good
troubleshooter I KNOW I have to look much closer for
something THEY didn't find and I must suspect
EVERYTHING.  

But, if the guy was a newby then I know I have to
start with the obvious first, maybe even the REALLY
obvious.

A maintenance electrician has an advantage over the
new-construction electrician in that he knows the
machine worked at one time, the construction
electrician has no idea whether the thing will
actually work, or even if it was designed properly, or
what effect any design changes had on the final
product.

Joe

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