(Topic ID: 297452)

1970s Gottlieb Skipping Players

By JRC6000

83 days ago



Topic Stats

  • 8 posts
  • 4 Pinsiders participating
  • Latest reply 73 days ago by JRC6000
  • Topic is favorited by 1 Pinsider

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#1 83 days ago

I've been shopping a Gottlieb Super Soccer. At this point I feel like I have it at 90-95%. My only remaining issue is when playing multi-players. The machine will skip balls for players at random. For example, if playing 2 players, Player 1 will work fine (and always does) but sometimes plays player 2 normally, other times just skips to the second ball for Player 1. The next time it'll give Player 2 a ball as normal. Same thing happens with 3 or 4 players. Sometimes the other players get a ball, sometimes they are skipped. I'm trying to figure out what causes the machine to decided to move to the next player at the beginning of the ball versus moving back to player 1.

I really thought it was the "add player unit" part of the schematic between the "P" and "ZB" relays. I've checked and double checked all of these, and even looked over the player unit and don't see anything amiss. Again, it doesn't happen every time, but seems to happen at random. So that leads me to believe that one of the connections is dirty or not quite adjusted right and only makes contact sometimes. Am I on the right track? Any idea which connection might be the culprit? Thanks, as always for any assistance you can give.

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#2 83 days ago
Quoted from JRC6000:

sometimes plays player 2 normally, other times just skips to the second ball for Player 1. The next time it'll give Player 2 a ball as normal. Same thing happens with 3 or 4 players. Sometimes the other players get a ball, sometimes they are skipped. I'm trying to figure out what causes the machine to decided to move to the next player at the beginning of the ball versus moving back to player 1.

Check that the 3rd Motor 2C switch is open most of the time.

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#3 82 days ago

Thanks so much, I checked that contact on the score motor and it is separated as it should be. I even widened it just a little to be sure and still getting the problem.

When I just tried it out after this small adjustment, I got the following on a 2 player game, (3 ball mode)

P1B1, P1B2, P1B3, P2B3...game over

This happened two times in a row. I'll have to through a few more to see if this is consistent or just happens to be the same twice.

Any other possibilities?

#4 82 days ago

I messed around with it a little more and can confirm that the pattern isn't consistent.

#5 82 days ago

Do the switches on PB2, PB3 and PB4 to the right of red arrow above open?

#6 82 days ago

Eyeball the coin unit in the cabinet also, it is sort of the first 'decider' as to how many times the player unit is pulsed. Make sure that the wipers are correctly aligned with the rivets. A dirty connection there would normally cause it to *miss* player unit steps - not add extraneous ones as you are seeing - however if the alignment was way off and the fingers were stopping in between rivets then things could get wonky.

#7 81 days ago
Quoted from frenchmarky:

Eyeball the coin unit in the cabinet also, it is sort of the first 'decider' as to how many times the player unit is pulsed. Make sure that the wipers are correctly aligned with the rivets. A dirty connection there would normally cause it to *miss* player unit steps - not add extraneous ones as you are seeing - however if the alignment was way off and the fingers were stopping in between rivets then things could get wonky.

I don't think super soccer has a coin unit ... just the PB2-4 trip relays for enabling player 2-4.

if the wipers on the player unit are misaligned and bridging rivets tho, that'd be a problem. Usually that would be caused by a cruddy unit not stepping easily.

try playing a 4 player game and sticking paper between the PB2-4 relay contacts in the three circuits above howards red arrow. If you still get player skipping, the most likely thing is the player unit wipers.

tmi alert:
-----------

the circuit works by motor 1A generating pulses to step up the player unit.

motor 1A goes over 5 cam lobes, so it closes/opens 5 times per score motor cycle (120 degrees of rotation). The first closure nothing happens because the P relay switch is open. The remaining 4 are the ones that step up the player unit ... maybe.

motor 2C is only closed at the same time as motor 1A for the first of the 4 remaining pulses, and guarantees the player unit will step once to the next player.

if that player is enabled, it's PB relay switch is open so nothing happens when the remaining motor 1A switch closures happen. If the PB relay switch is closed, a pulse is generated to step up the player unit again and the logic repeats.

if a one player game always works reliably (the player unit steps 4 times after every ball drain), then score motor 1A and 2C must be ok - if either are flaky, you'd likely wind up on a non-enabled player.

1 week later
#8 73 days ago

I'm circling back to mark this complete. Thanks for all the suggestions. I cleaned and readjusted all of the places mentioned above. I noticed that the PB2, PB3, and PB4 were not separating real well so adjusted them out a little. Not sure if those were actually the culprit or not, but it did seem to get better after that adjustment. Thanks again!

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