[NLRS] ft-817 mic repair

[Glen Overby]

Last weekend during the 10ghz contest I had reports of something wrong with
the microphone on my Yaesu FT-817.  I switched to my 'spare' mic (the one from
my 'spare' IF rig) for a while, then switched back when I discovered (I think)
a loose PTT connection.

I don't know much about microphone failure modes.  I wonder if it could be an
intermittant connection on the cord, not a failure of the mic itself (the mic
and cable are separate, and the connection to the mic and radio is with an
8-pin "RJ-45" type connector).  I opened up the case and inspected the wiring
inside, to see if it was an easy problem like a broken wire.  It's not.

I'm looking for ways to diagnose the problem further, before just replacing
"the part".  In particular, I'd like to make sure that it's not the cable.

Any ideas?

Glen