Hello all,
Working on a Hurricane pin and having some switch issues. With all connectors plugged in, my machine starts going through the menu with the door open. Enter button acting as if it's being repeatedly pressed. Door closed, says " shut door to use buttons". If I unplug the coin door harness at the interface board, it then gives me a slam tilt. Any of the above will happen repeatedly. Sometimes once each minute to several times each minute. I unplugged J205 on the CPU, dedicated switches, and I thought the problem was gone. Then after about five minutes with the machine on, it gave me the open coin door to use switches message. I don't get the error as frequently, but still there. I'm guessing replace u16. Should I also replace u20? Thanks in advance for your help.

The battery holder had some. Holder was removed, board cleaned.