"300"
Gottlieb, 1975You're currently viewing posts by Pinsider MarkG.
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The Add Player Unit circuit has a lot going on and is often discussed here. Here is the 300 circuit:
300 Player Unit (resized).jpg
Can you elaborate on when it fails to advance? Any particular ball or player? Any number of players on a game? The better you can characterize the issue the more you can eliminate from this schematic.
/Mark
The Score Motor 1A switch has to close for the Player Unit to advance, but so do a whole bunch of other switches. If it happens during a 1 player game we can eliminate the P2G, P3G and P4G circuits at the bottom. That still leaves the Score Motor 2C switch and switches on the U and P relays for example that could be part of the problem or any of the normally closed switches if they're intermittent.
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