[TenTec] 560 Problem

[William Evans]

I purchased a 560 (Corsair One) recently, and do not have the manual to 
go with it.  Everything seems to work except for the receive RF 
amplifier.  When I push in the knob and the RF amp light comes on, the 
signals are attenuated about 10-15 S units.  Instead of amplified, the 
signals are attenuated to the point of not hearing anything but hiss.  
Does anyone have any suggestions of where to look?  Any help will be 
greatly appreciated.

w4ish