I went and tried to reflow the solder on the connections between the 4 wiring harnesses and the power PCB board, and just for good measure I tried to reflow the solder on the bridge rectifier.  There was no effect in getting the machine to work correctly, it just does the same things as before.

However, one interesting thing I noticed is now, when I try to test continuity over the F2 fuse clips after removing the fuse, it no longer shows it as continuous.

I hope everyone out there is having a prosperous holiday season. Mine has been very busy, and as a result, no time to work on the Robotron.

Hopefully, I will get a chance to work on it tomorrow. I have pulled the power PCB and I am going to try to resolder the connections for the power harness. I have heard that this can do wonders, and truth be told, the solder joints on the board look none too good right now.