Picked up a dead UMK3 board that had made no sound but the LEDs lit up when turned on. I pulled U45 and several of the pins were bent straightened them, pulled U47 and noticed the housing was cracked put a zip tie around and resocketed it, the U35 chip is missing a pin; left it out and restarted the game and I get the test sound but the rom test says the ram is bad. What I want to know is what does the U35 do and can I get another one or can I somehow repair the missing pin? Have just started removing the corrosion from the other chips hope that is the problem with the rest.
