(Topic ID: 325451)

Gottlieb EM Starts Scoring 100's as soon as resets are done

By CaptainNeo

1 year ago


Topic Heartbeat

Topic Stats

  • 41 posts
  • 5 Pinsiders participating
  • Latest reply 1 year ago by Garrett
  • Topic is favorited by 1 Pinsider

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#34 1 year ago

the D relay is stuck powered?

if yes, you can stick paper in contacts in the circuit like 1B and 2B to narrow down which branch is completing the circuit.

if D is not stuck on, then what damoib said in post #23 is probably the most direct route to go. If the motor and scoring is annoying while you are looking around to see what relay/switch is powering the motor, pull out the motor service plug to turn off the motor.

#39 1 year ago

schem says the ball return coil has black and BR-RED wires on it.

one check is to touch a jumper from BR-RED to the 10A fuse in the 25V circuit. That'll be the max power the coil will ever see.

if the ball kicks easily then, you've got a cruddy switch in the circuit limiting current or a switch on the score motor is not staying closed long enough (switch gap too big, switch dog in wrong slot, broken or misshaped switch actuator, etc.)

if jump test doesn't work any better, either the assembly has a mechanical issue or the coil is bad. Typical mechanical issues would be a badly burred coil plunger dragging on the coil sleeve, missing/damaged coil sleeve, or heat-distorted coil/sleeve.

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