First off, the name I used to post this question is the one I used when not
at home, so please don't be confused if the name on this message is
different than that of the first.




You say you measured the outputs of the transformer? So, the 10 V output
measured 10 VAC


Correct.

Also, you said a fuse actually did blow?


The main one did.

The circuitry between the transformer and the DC outputs should be quite
simple. If you aren't getting any DC voltages at, something is likely
open - a bad solder joint or fusable resistor.


That's probably it. I'll spend an afternoon working on it.

The effect you describe of shorting the 10 VAC output from the transformer
sounds strange. Possibly you were pushing on something in the vicinity
and the act of shorting having an effect was just a coincidence.


I shorted the ground of the circuit board and a lead from the transformer
that was directly connected to a fuse of the circuit board, not the main pwr
supply fuse, and that produced the effect described. I thought the same as
you - that it might be a nearby component - but repeated shorting confirmed
that indeed one part of the transformer was being shorted.

I could speculate but better to just trace the circuit for one of the DC
outputs and check each component and the wiring. It shouldn't be too hard
to find the problem now that you know the rest of the circuit probably
works.


Yes. Shouldn't be too difficult