I am working on a wh20 and the gi wires had been clipped on the old transformer but otherwise the game was working fine.
I located from a reputable source another transformer and it arrived today.
The input plug had some of the housing broken off so I replaced the connector (pin by pin to make sure it was right).
Flipped on the game and while everything appears to come up (DMD says testing, CPU is blanking, driver board shows all voltages present), then this hellacious sound almost like a reverb or something comes out of the speakers and you cannot turn it down or anything. No fuses pop or smoke or anything other than that sound.
Any ideas appreciated.