narrowed down the wiring problem finally to the cutoff switch, the two +55vac wires from pins 1 & 7 of J20 were being connected to each other instead of to the other two wires. Looks like it took out BR 4 & 6, but wanted to get a second opinion if anyone out there has run across this before. My guess is, coin door closed sent 110v back across those two BRs and cooked the diodes inside. Thanks in advance.