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I rewired the cabinet for my Donkey Kong. It had been converted to a switcher, and the cabling/harness was a rat's nest.

I previously recapped the monitor using APAR caps, and it was locked in.

I rewired the cabinet with a Mike's Arcade harness, using an original Nintendo PP-7B power supply. The voltage off the power supply tests 108 volts with no load, which should drop under load. I did some searches here and that seems fine. The B+ is 108.7 volts DC.

It's scrolling like crazy and I can't get it locked in. I'm wondering if it's the harness. I have a Dokert Harness I could try, but I'm trying to rule other variables out first. Any thoughts?

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