Hi:

Next step: Check the voltage betw pin 5 (cathode) and pin 6 (g1) on each
7591. Pin 6 should be somewhere betw minus 17 and say minus 22 VDC WRT pin
5. If you find this voltage then your problem probably lies elsewhe dirty
socket contacts etc. If you find some other voltage then your problem
remains in the bias supply. Could be bad cap or voltage divider resistors
or cold solder joint(s) or ...??? Trouble shooting these things is the hard
part, esp by remote control. Replacing the defective components is easy by
comparison.

--
Steve


andyboy wrote in message
. ..
"Steve O'Neill" wrote in message
...
I put in the new diode and it did not fix the problem. Any other
suggestions?