[ICOM] HM-133 -- junko microphone?

[D C *Mac* Macdonald]

I bought a stock far-east made microswitch
at local parts house that was exact fit for
the one used inside MOST of the Icom mics.

73 - Mac, K2GKK/5
Oklahoma City, OK



----Original Message Follows----
From: Steve Lewis <n8tfd at one.net>
Reply-To: ICOM Reflector <icom at mailman.qth.net>
To: icom at mailman.qth.net
Subject: [ICOM] HM-133 -- junko microphone?
Date: Mon, 29 Jan 2007 12:53:19 -0500

I'm having issues with my HM-133 mic (default mic for the IC-2720).
It's NOT the radio, my HM-90A and bare bones HM-95 work fine!

Basically, I have to squeeze the mic in a death grip to acquire "PTT".
There's an audible "click" without doing that, but I guess the switch is
not fully "depressed"...

I've taken the mic apart, there's no obvious mechanical flaw -- and
using a small blunt object I can "force" the switch far enough to create
"PTT".  The switch is NOT becoming desoldered from the PC board, or
anything like that.

Has anyone else had this issue?

Anyway -- seems like I have to replace the mic, probably with another
model.  Any suggestions?

-73- de N8TFD/Steve