Hi all, just picked up a Surf Champ and King Kool, my first EM machines. These machines seem totally foreign to me as I am more familiar with working on machines of the bally mid 90's era.

Surf Champ was running well until I replaced all of the bulbs. Now I have some weird things happening and not sure where to start with a repair. The bonuses at the end of the game are not registering. When the ball goes over the roll over targets they do not register as a bonus, Im pretty sure that is the case with most of the targets, most everything works but when the ball drains a bonus is not added up, a new ball is launched.

Where should I start looking?
Thanks!

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The drop targets, bumpers and spinner are working intermittently It seems that if I spin the spinner with my finger rapidly, the problem is fixed, the bumpers, drop targets and spinner all start scoring, when the ball drains and a new ball launches, the problem starts all over again. Im totally puzzled as to where to look.