Donkey Kong Power Supply issues

hutch1

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Fargo, North Dakota
So I'm getting closer to the point of booting up my Donkey Kong 2-board set version cab, but wanted to double-check all the voltages coming from the power supply first (Model 7B). I checked the voltages for 9P and 10P and they are all within range (+/- .1volts), which is great.

However, I checked the AC voltage from the 2-port power socket for the lamp and Sanyo monitor, and I'm getting a constant 110volts for both. It should be 100volts AFAIK. The wiring for the socket is coming from the 2 yellow wires on the output of the Isolation Transformer. The other 2 green wires going into the power supply itself.

Is this still within range for the Sanyo? If not, what can I do to fix this, since this is the output from the transformer itself?

Oh the voltages on the terminal block all check out. I'm getting 120v on the 120, 100v on the 100 and 90v on the 90 block. Could I run wires from the 100v terminal block, run it through another isolation transformer, and then to the power socket?

(Attaching pics for better clarification)
 

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