(Topic ID: 260508)

Flipper stuck in up position on start of game .

By Airball

1 year ago


Topic Heartbeat

Topic Stats

  • 15 posts
  • 10 Pinsiders participating
  • Latest reply 1 year ago by YeOldPinPlayer
  • Topic is favorited by 1 Pinsider

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#1 1 year ago

Does anybody have any advice as to why my right flipper would be stuck in the up position making a humming noise?

Stern walking Dead pro?

#2 1 year ago

Coil is stuck and engaged.

#3 1 year ago
Quoted from Isjack:

Coil is stuck and engaged.

Any tips to fix?

#4 1 year ago

Ahh - I am learning right now on my star trek that my stuck coil is a transistor. Page 13 manual will show you which components the flipper is using (Q15 drive transistor, etc). Check the connections for blown things, test the transistor, check those things listed on page 13.

#5 1 year ago
Quoted from Isjack:

Ahh - I am learning right now on my star trek that my stuck coil is a transistor. Page 13 manual will show you which components the flipper is using (Q15 drive transistor, etc). Check the connections for blown things, test the transistor, check those things listed on page 13.

Thanks, this might be above my knowledge.

#6 1 year ago

Could be the transistor or the diode on the coil or the coil itself. Do not leave on!!! If your coil got too hot you might want to replace all the above.

#7 1 year ago
Quoted from Airball:

Thanks, this might be above my knowledge.

Gotta start somewhere. If you want to learn, this is a good problem to learn how to isolate issues and replace a specific component.

#8 1 year ago

I just had this exact problem on a Bally machine, turned out to be a bad opto board for the flipper button. You could try swapping the flipper button opto boards. Its an easy thing to do that doesn't really require any electrical knowledge, just a couple plugs and a couple screws on each side. See if the problem travels over to the other side. If thats the case its a pretty cheap and easy fix.

#9 1 year ago

I will give it a go after work today.

#10 1 year ago

Does it stay stuck when you turn the machine off?

#11 1 year ago
Quoted from plovis:

I just had this exact problem on a Bally machine, turned out to be a bad opto board for the flipper button. You could try swapping the flipper button opto boards. Its an easy thing to do that doesn't really require any electrical knowledge, just a couple plugs and a couple screws on each side. See if the problem travels over to the other side. If thats the case its a pretty cheap and easy fix.

Does Stern use optos or leaf switches for the flipper buttons? Either way, OP, check for a stuck switch first before doing more complicated stuff. Go into switch test mode and see if that flipper button is closed.

#12 1 year ago
Quoted from Nokoro:

Does Stern use optos or leaf switches for the flipper buttons? Either way, OP, check for a stuck switch first before doing more complicated stuff. Go into switch test mode and see if that flipper button is closed.

New stern uses leaf switches.

#13 1 year ago

Start Simple. Make sure none of the EOS or button switches are simply not gapped correctly or in contact before tearing into boards.

#14 1 year ago

The button on my TSPP was defective. While the button seemed fine, inside the actuator was getting stuck in the engaged position.

#15 1 year ago
Quoted from Buzz:

diode on the coil

SAM games don’t have diodes on the coils from the factory. The diodes are on the driver board. See the Pinwiki for more info.

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