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Game works other than the kick out coil seems to slow down after a few cycles. It will always engage in test mode. It will work fine for awhile then it will stutter and can not clear the ball. Replaced the transistor with TIP 120 and diode. New solenoid expander board and coil same results. New PIAs and replaced U20. TP are good. TP3=244.TP2=179.