(Topic ID: 236799)

Gottlieb system 1 problems


By maxtrin

3 months ago



Topic Stats

  • 6 posts
  • 3 Pinsiders participating
  • Latest reply 69 days ago by dragon55
  • Topic is favorited by 1 Pinsider

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#1 3 months ago

Hello can someone post a picture how the switches on the mpu bord should be set at.
I have a gottlieb totem. Thx

1 week later
#3 83 days ago

Thank you,
I have some more problems I need help with I have done the freeplay mod I can start a game and play but wen I lose the first ball nothing happens it thinks that I am still playing the first ball.

#4 79 days ago

Bump
I have now manage to get it working but wen I shot down some droptargets it's activating the
Outhole coil any ides?

#5 79 days ago

That is very strange. You might have a short somewhere in playfield switch matrix, but the outhole switch is separate from matrix. Does the game score bonus and increment "ball in play" when outhole coil activates?

Check and clean all board connectors, they are major cause of system 1 troubles. You might need new connector pins installed.

1 week later
#6 69 days ago

possibly replace the IC Z6 on the MPU board see schematic on pages 2 of 3 VII-9 of the service manual gottlieb solid state pinball games 2nd addition. This Ic controls the outhole and as you will see also the knocker, tens, hundreds and thousand chimes.. I had a outhole problem similar to yours, first ball would play but no other ball wold come out to the shooter after that.. this chip is a SN7417N i found them on e - bay. one installed outhole worked fine... Phil USA

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