[Drake] TR-7 Problem Help :>))

[Dave Meitzen]

I have a TR-7 with the AUX 7 board. I removed this board and put it in my
TR-7A. The TR7A works fine. The TR-7 does not work.

The symptoms is the receive low sensitivity -- I can hear the calibrator but
not loud. Also if I depress the NB button the display blanks - sometime I
can see one digit blinking but not bright. I swapped the NB and Filter
board - they work in the TR7A.

I have checked and rechecked all coax connection - still does not explain
the NB effecting the display.

Any help will be greatly appreciated.
Thanks
Dave