[Ham-Mac] iMic / ACC2 Port

[Lon Kinley]

I am trying to drive my TS-570 with an iMic through a Donner 
Interface to the ACC2 port and I can't seem to get a signal into the 
rig.

I have no problem with audio from the rig to the iMic, just the other 
way around. And yes, the volume in the sound control panel is all the 
way up, the input level on the 570 is all the way up, and I have 
confirmed signal all the way from the iMic through the interface to 
the connector.

Is the output of the iMic insufficient to drive the rig through the ACC2 port?

My whole point in using the ACC2 port was to eliminate having a rat's 
nest around the mike connector and having to adjust mike gain back 
and forth when switching in an out of digital.

Additionally, the usual "fingertip on the audio input" to get a hum 
produces nothing.

I am open to any all all suggestions except "use the mike input"; I 
already know that one. :)

Lon N3ZKP
Baltimore