I am having trouble with my double bonus. It works when it wants to. Once you hit targets E & F and the ball lands in the kick out hole it lights the double bonus on the playing field and energizes the relay for double bonus. When it does work the relay stays energized the entire time the score is added to the player and then is de-energized when the ball is ejected for the next player or ball. What would cause the double bonus relay to de-energize before the ball is ejected?

_{Post edited by bigbadford91 : tm}

I have uploaded a complete schematic.

I am having a tough time understanding the schematics. Are the hold switches on the relay themselves? On the double bonus and outhole relay there is a switch that if I manually break the contact the relay de-energizes the double bonus. If I jump the hold switch it still de-energizes when the ball drains. Could I be losing power to the relay? Could the score motor cause the problem?
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This is what I found. The double bonus relay is energized when e & f are closed and the kick-out switch is closed. The double bonus relay can be de-energized by breaking the hold switches (grey-blue wire) on either the double bonus or outhole relay. It appears that the outhole relay is energizing to early and breaking the hold switch. Unless the grey-blue wire from the a-f targets are supposed to complete the circuit to keep the double bonus relay energized.

out_hole_relay.png

Yeah its an interesting problem. I have been banned from working on it till after New Years eve. We are having company over tomorrow and the wife is afraid that I will break it. I agree that its a problem with the outhole relay. Finding it should be fun. I think I'm going to video tape it and try to identify what the differences are from when it works from when it doesn't.

Looking at the the contact switch code for the outhole relay it mentions open and closed when the relay is not energized. What I don't understand is the triple contact it mentions. Does that mean when the relay is not energized it is making triple contact and when it is energized it is making contact only on one?

relays.png

I will report my findings tomorrow. I need to pull the relay assembly off the board because one on the screws holding the leaf stack has backed off totally. Maybe tightening that will fix problem?

Thanks Jeff! Looking at yours it seems the triple switch in the top of the pic is adjusted wrong. It looks like it will never make contact with the very top switch. I went through and cleaned the outhole relay switches. I also found on the tilt relay that a normally closed switch wasn't making good contact. So now the machine is counting bonus and double bonus as it should!!! Is there anyone that sells the screws needed for the leaf switches? I have two that are lose but are too short to grab the tinnerman nut.

Yes it is. Thanks for your help!