Wow! Don't know what I hit but all of a sudden, I have no receive audio 
from the 590s.

The external speaker is working because the speech synthesizer comes 
through it nicely but can't hear anything from the receiver.

It is as if the squelch was turned all the way up but it isn't.

No matter what band or freq i go to or what memory I choose the result 
is the same even when I am on the AM broadcast band.

Tried a v f o reset but that did not solve the problem.

Anyone run in to this before and know how to fix it.

Looked through the manual but don't see an answer.

Thanks in advance.

Don