Quoted from MarkG:You didn't answer the question. Can you confirm that the #11 relay (2nd from the right) trips after being reset?
Looking more at the schematic I think that the #11 relay should trip during reset once in each Score Motor cycle. I think the way this game resets is:
- the coin chute trips the SB2/Start relay in the Control (trip relay) Bank
- a make/break switch on SB2 trips the SB1/Start relay in the Control Bank
- a switch on the SB1 relay starts the Score Motor
- the Score Reels reset to zero through switches on the SB1 and SB2 relays
- if the ball count isn't already at zero (e.g. the game tilted somewhere in the middle of the game) the Ball Count Unit counts down to zero
- once the Score Reels and Ball Count Unit reach zero the DB/Reset relay trips at the end of the Score Motor cycle through a switch at Score Motor position 2B
- at the beginning of the next Score Motor cycle the #11 trip relay trips through a make/break switch on the DB relay
- once the DB relay has tripped the Ball Count unit counts up from zero to 3, 5 or 8 balls (user adjustable)
- once the Ball Count has reached the correct number of balls the Control Bank Reset solenoid fires through switches on the Add Ball Count unit and the SB1 Armature (in the red box):
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I think you're getting through everything but the last step. If that's the case something in the Control Bank Reset solenoid path is intermittent. It could be the SB1 Armature switch (as suggested at the beginning of this topic), or the Add Ball Count switch on the Ball Count unit, or it could be that your Ball Count Unit isn't stepping up cleanly, or the wipers aren't making good contact.
Things I would check:
- Is the Control (trip relay) bank fully seated in its brackets and are the wing nuts tight?
- Is the SB1 Armature switch clean and working correctly? (closed when the SB1 relay is tripped, open once it has reset)?
- Is the Add Ball Count Unit switch clean and closing each time a the Add Ball Count solenoid fires?
- Does your ball count unit step cleanly up and down with no hesitation?
Remember that this entire circuit is running at 120 volts. Unplug the game before poking around.
Beautiful Mark!!! I’m more of the ‘have to be there prod and poke’ repair guy or babble on. : )
As I wrote earlier my thoughts are in the SB1 or SB2 relays. I’ve run into that so many times way back when. Not saying definitive, but more so than not.
James, not telling you what to do but make sure you read all replies thoroughly and if you don’t understand ask.
I wrote in my 1st reply if you’re cleaning/adjusting switches make sure you check those switch stack screws 1st! If loose you’re just wasting time adjusting.
Woodstock, NY
