Steve W3AHL,
I’ve been following this thread because I’ve had the same problem with a used IC7000 I bought several years ago. I bought a replacement mic (off of eBay, which was probably stupid) just to find it had the exact same issue. I think now that maybe it was one of the original faulty ones that Icom pulled. Who knows.

I’m looking forward to trying the fix you’re talking about as soon as I can replace the antennas a tornado got.

Thanks for the info and thanks to all for the thread

73,
Linda AG5HJ