RT-524 (AN/GRC-12) Won'T Trans Anymore

[Crapgame]

I've got an RT-524 installed in Pepe, my Bombardier Iltis. However, last week the motorpool gremlin got to it, it will no longer transmit with either the brand-new "porkchop" handmic or the headsets.

I tried to ground the 4 pin but it still won't trans.

Any ideas? Or am I stuck shipping 65lbs back and forth to get it fixed?



Thanks in advance.
Tom A in Colo Spgs
"Skunque-Breaker"