[Drakelist] R-7 Control Board Fix

I finally got my R-7 working again. I fried the PROM, U201, on the digital control board nearly two months ago when I accidentally created a solder bridge between the 5 10-volt P/S lines while trying to change the use of the Aux. Program switch [S6] so it selects the P/S outputs for a meter

[Drakelist] R-7 Digital Control Board Update

Greetings: I still haven't fixed my R-7 yet but I'm making progress. I bought a digital control board from a TR-7 tried it found that all but the lowest 3 bands worked; the board outputs for the 3 bands that didn't work were all continually low, incidentally, while the outputs from the PROM

[Drakelist] Need 02 Digital Control Board for R7[A]

Because of an accidental solder bridge [that I put] between the +5 10 V buses on the underside of the parent board I fried the PROM IC, U201 [P/N 3040082] on the digital control board. Everything else appears OK but all the PROM outputs stay low although the enable-not input is low the [4]