[TenTec] Omni VI Howling Noise

[Brian Roberts]

Hello Gents--

I have a Ten Tec Omni VI that has an intermittent problem that comes and 
goes for no apparent reason. The radio can be transmitting or receiving just 
fine and then a loud howling noise comes on. When the noise comes on, all 
functions are lost (signal reception, mode selection, band change, audio 
gain, etc.). The radio can be turned off and then back on with no change. 
Resetting the processor doesn't help. Shutting the radio down for a day or 
so will bring it back to normal again. Normal operations may continue for 
days or weeks before the howling noise appears unexpectedly once again.

I've found that pulling cable #56 on the Logic Board will stop the howling 
noise. Plugging cable #56 back in restores the howling noise.

Has anyone had a similar problem with the Omni VI or can anyone give me any 
guidance on how to go about repairing the radio? Thanks.

Brian K9VKY