If any of you are familiar with this unit, your help would be greatly
appreciated. I don't have a service manual for it. The Focus knob is
unresponsive on it. Unit seems to work fine otherwise. I am going to
check the focus pot and the electrolytic caps in it. Any other ideas?
Clark

wrote in message
oups.com...

** Groper alert ...


If any of you are familiar with this unit, your help would be greatly
appreciated. I don't have a service manual for it. The Focus knob is
unresponsive on it. Unit seems to work fine otherwise. I am going to
check the focus pot and the electrolytic caps in it. Any other ideas?



** Check any high value resistors ( 100 kohms or more) connected to the
focus pot.

Bet one of them has gone very high or open circuit.




......... Phil

[[email protected]]

Thanks. I'll check them.