[TenTec] Omni V and 705 Mic issues...

[John Callari]

Hello...

I acquired an Omni V this weekend with a model 705 microphone...  When  
the 705 is set to PTT (via switch in base)
and the Omni is set to PTT (via depressed PTT/VOX button on faceplate)  
the Omni's receiver drops out completely.
It is as if the PTT relay is activated...  and a press of the PTT  
button on the mic allows for transmit, but the receiver
never comes back on.  It's locked out.

When a Shure microphone is attached to the radio, and the PTT/VOX  
button is depressed, the Omni "acts" normally.
Receiver is still active, etc.  The PTT button on the Shure does not  
work at all in the Omni's PTT mode.  But, when
the Omni is set to VOX, with the PTT button locked on the Shure  
microphone, VOX operation is normal.

VOX seems to be working just fine, with no issues at all...  PTT is  
not operational at all.

Is this a bad PTT switch?  Relay?  Solder connection?  Or something  
that may need to be resolved by a TenTec
tech?

Thanks!

John
K2JNC