Batboard

My R2001B was working fine until doing a de-sense test at a site yesterday. I had 70db isolation for a
27w transmitter. During the test, I accidentally toggled the power off. Now the generator RF level goes
immediately to maximum when raising the variable control. The step-pad is working fine, but I have
lost the variable control. I have no maintenance manual for de-bug. Does anyone recognize this error
and have a solution?

When the unit was turned off, you basically put the unit into the generate mode with rf applied and no protection sensing. Most likely taking out U205 and U204 in the wideband amplifier section of the RF I/O module. You might of also taken out the mixer in that section. Those are the circuits to check. The bad news, you need the maint manual. The good news is, that module is common between the A, B & C models so any of those manuals will work.

I have a copy of the A11 Module schematic and parts list if you need it.

PM me your email address.

-Trevor