(Topic ID: 328608)

Gottlieb 1962 ball count unit keeps firing

By EMDude

1 year ago



Topic Stats

  • 9 posts
  • 4 Pinsiders participating
  • Latest reply 1 year ago by EMDude
  • Topic is favorited by 1 Pinsider

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#1 1 year ago

Just set up a 1962 Gottlieb AAB flipper clown pin, cleaned all the Jones plugs, checked all the fuses when I powered on the ball count unit (which on this game is called a balls to play unit) fires in both directions simultaneously, the step up and the step down coils fire constantly, and the score motor keeps running. The trough ball release solenoid does not fire but all the score wheels go back to zero correctly. Unfortunately I do not have a schematic for this machine. Thanks for your help and suggestions!

#2 1 year ago

Sounds like the D (Reset Relay) in the Control Bank is energizing once all Score Reels
0 out, but the set of contacts that's in the Subtract Balls circuitry's not breaking.
I'd loosen the 2 wings nuts on the Control Bank, flip it upward, and make sure all
sets of contacts are breaking (and making) when they're suppose to and make sure
any of the solder tabs/wires are not touching..

#3 1 year ago

Mopar Thanks, flipped up the reset bank and checked all of the contacts (and tightened switch stacks for good measure), double checked D and it looks like it’s functioning properly. In the reset position, the balls count from 10 down to one then game over then the D relay trips and then counts all the way back up to 10 balls once it reaches 10, the ball count coils fight each other.

#4 1 year ago
Quoted from EMDude:

then the D relay trips and then counts all the way back up to 10 balls once it reaches 10,

Okay, you want to check the Ball Count Unit's EOS switch along with it's solder tabs.
It makes with every step up. You'll want to make sure it's clean and making good contact.
Also, you may want to make sure the Ball Count Unit's Snowshoe Wipers are free and not sticking..

#5 1 year ago

Thanks. Serviced the ball count unit EOS switch and checked/cleaned the rivets and wipers as well as the other contacts in the unit. No luck, both up/down coils fire simultaneously as well as the back box animation coil (clown hitting ball).

#6 1 year ago

Reply sent in private message

#7 1 year ago

Check the 'S' armature switch, it's on the underside of the of the relay bank, under the 'S'-start relay, first relay on the bank as you look into the machine. The balls to play unit counts down first and then back up to 5. The start up for flipper clown is on pinwiki.

2 months later
#8 1 year ago
Quoted from durriti:

The start up for flipper clown is on pinwiki

Search for Flipper Clown on https://www.pinwiki.com/wiki/index.php/EM_Repair

Quoted from EMDude:

In the reset position, the balls count from 10 down to one then game over then the D relay trips and then counts all the way back up to 10 balls once it reaches 10, the ball count coils fight each other.

If the Subtract Ball Count solenoid starts trying to count down at the end of the reset sequence, find out which circuit is causing that by putting paper in these switches one at a time.

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#9 1 year ago

Thanks HowardR I’ll give it a try and report back.

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