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Dogfacedsoldier
Intermediate Member
Username: Dogfacedsoldier

Post Number: 130
Registered: 10-2004


Posted on Sunday, October 15, 2006 - 4:57 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

i got a icom 2100 and having troubles with the mic everythin on the mic works but it wont key up so anyideas what might be wrong?
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Ck29
Junior Member
Username: Ck29

Post Number: 38
Registered: 3-2006
Posted on Monday, October 16, 2006 - 1:54 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I have HM-98S mic on my ic-2100h radio, and I also had the same problem. I open the mic and saw that the ptt arm is attached to a plastic lever
that in turn pushes a 60 or 90 deg lever down to
a very small round metal disc in a round recessed
slot. when this lever pushes the center of this
disc it folds in and touches 2 very small contact
points that keys up the unit. what happens is that disc wares out or the return spring is damaged or maybe one of the 2 levers are damaged.
What was wrong with mine was the spring needed to be readjusted and the small round disc needed
to be slightly tweaked. Its a pain in the butt
to repair because the parts are so very small.
I think it would be easer to just buy another mic. right now on those auction sites I saw 3 mics for sale.

hope this helps good luck
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Yankee
Senior Member
Username: Yankee

Post Number: 1342
Registered: 7-2003


Posted on Monday, October 16, 2006 - 11:30 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Gosh, I'm in hopes that my microphone on my IC-2100H keeps working, from what I understand these microphones new are not cheap. If one does quit working the best way to go is a new one.
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Dogfacedsoldier
Intermediate Member
Username: Dogfacedsoldier

Post Number: 131
Registered: 10-2004


Posted on Tuesday, October 17, 2006 - 4:46 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

welp took it apart and seen what it was instantly...the key switch had broken sodier joints so just hit them with a hot sodier gun and good as new thanks for the other ideas tho guys will keep them in mind case it happens again.
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Slugo4449
Intermediate Member
Username: Slugo4449

Post Number: 120
Registered: 7-2004
Posted on Wednesday, October 18, 2006 - 1:22 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

There is also a mod for the ic-2100h. Seems that there is a problem with grounding inside the radio and you will eventually here popping noises on your receive and on transmit. Your deviation also drops off.

The fix is to add star washers on the screws that hold the circut board in place on the metal case. To give it a better ground there are also a couple of places to add sheet metal screws. Do a search for this mod on the internet. I think there were also photos to show where to put the sheet metal screws

There was a big difference on receive and on transmit when I did the mod.

Marty
KG6QKJ

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