Twilight Zone left spiral magnet won't release ball.


By Gatinho

11 months ago


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  • 9 posts
  • 8 Pinsiders participating
  • Latest reply 3 months ago by Crazyirishman34
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stuckBall (resized).jpeg


#1 11 months ago

I'm a new owner of this classic game. #twilight-zone: when the left spiral magnet catches a ball for various reasons, the ball is held there until the machine starts looking for the lost ball, and at some point one of the checks is to release the ball from that magnet. Until the check releases that ball, however, it is hung there indefinitely, and the magnet has too strong of a hold to nudge the ball loose of that magnetic hold.

Is this a known issue? Is there a known fix?

Thanks!

#2 11 months ago

Are you sure the magnet pole or the balls haven't become magnetized ?

LTG : )

#3 11 months ago

Is the magnet level with the playfield?

#4 11 months ago
Quoted from LTG:

Are you sure the magnet pole or the balls haven't become magnetized ?
LTG : )

Quoted from Maken:

Is the magnet level with the playfield?

Those were the two that came to mind for me as well. Both magnets in my spiral were well below the playfield when I purchased my TZ. They were fairly beat up anyway, so I swapped them out with new cores while adjusting.

#5 11 months ago

I had this problem on my Dirty Harry. It was the beat up core not being level with the playfield.

EDIT: To clarify what is actually happening, the ball is getting hung up on the edge between the steel core and the wood play field, sort of like it's sitting in a ditch

1 week later
#6 11 months ago

Thanks for the replies, although the problem persists.

Most theories posted here were that the ball is getting hung up on a lip from an uneven magnet where it penetrates the play-field, but as you can see in the attached photo, it's not hung up on any lip. The area is smooth and flush. The ball is literally being held there by an active magnet. This magnet gets turned off at some point in the game's search for the ball... which makes it let go. I'm not sure why that magnet stays stuck in the active state.

While annoying, it's not a game-breaker so long as the player doesn't try to shake the ball free. If you tilt the machine, then that's a game breaker. The machine has to be turned off to get the ball free.

I was hoping it was a "yeah, common problem, here's the easy fix" kind of issue.

stuckBall (resized).jpeg

#7 11 months ago

There's another simple solution. You may have the wrong grade or type of balls. IOW, the ball itself has become magnetic.

#8 11 months ago
Quoted from Gatinho:

Most theories posted here were that the ball is getting hung up on a lip from an uneven magnet where it penetrates the play-field, but as you can see in the attached photo, it's not hung up on any lip.

The reason for this is that powering down the magnet would not normally be part of the ball search procedure and if the magnet was locked on you would blow a fuse, transistor, etc. Not ruling out that possibility but it would be more likely the vibration caused by the solenoids firing is releasing the ball.

If you turn the game off when the ball is locked does it release?

7 months later
#9 3 months ago

So I had a similar issue with my TZ but with the right spiral. It locked on and burnt the PF but mostly the underside. Maybe the eddy board?

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