(Topic ID: 278765)

Switch question

By petebest

1 year ago

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  • 7 posts
  • 5 Pinsiders participating
  • Latest reply 1 year ago by jeffc
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#1 1 year ago

I picked up a new pin, and don’t have a schematic yet.

This switch (circled in red) on the 10s is bad. I need to replace it. (The pic is not of the failed switch - it’s of a good unit)

Any idea what would be/not working with this NC switch always open due to failure?

It’s a Gottlieb soccer.


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#2 1 year ago

The switch itself is pretty simple. IF your troubleshooting is right and the switch is truly open all the time, either:

1. The contacts are so dirty/pitted that they're not making electrical contact or aren't physically touching. Clean them with a switch cleaner or other tool - gently bend one of the leafs closer (from the base) if they're not touching.

2. One or both contacts are separated from the leaf blades. You have to either press the contacts tighter into the leaf or solder them.

3. You have a break in your wiring, either at the switch lugs, or elsewhere. A multimeter might help you determine this.

Get a schematic though - troubleshooting is tough without one.

#3 1 year ago

I understand what switches are for, and how they work.

The post states I’m wanting to know what this switch is for.

And I’ll get a schematic, thanks. There wasn’t a schematic store open when I grabbed this machine.

#4 1 year ago

E-O-S (End of Stroke) switch. It opens at the End of Stroke so that the score reel coil will let go. If closed all the time, that coil will never let go, after energizing. If open all the time, the coil will never energize.

If it is always open, the reasons and remedies were already listed by Paulace.

#5 1 year ago

That is the EOS switch for the score reel. You say your 10's reel is faulty. When that player (#1? #2?) hits a 10 point switch (e.g. slingshot) your 10 point relay (N) should energize *and stay energized* until the player's score reel tells the N relay it has finished scoring the 10 pts. The circled switch is how the score reel communicates that feedback. The yellow marking below shows the lock-in path for N relay which will stay locked in until ON ADD 1ST. "TENS" opens or ON ADD 2ND. "TENS" opens, depending on the active player.

However, since your switch allegedly is broken/never closing, then the N relay will never "lock in". Meaning it will energize only as long as your playfield switch (e.g. slingshot) is closed. That may not be enough time to mechanically score 10 pts, although your score reel may twitch in trying. If you held a 10 point switch (e.g. behind a rubber) closed, the score reel would fire and then would release when you let go of the playfield switch. By the way, the score reel advances when it's coil releases, not upon its firing.

The other player would not be affected by this.

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#6 1 year ago

Hi jeffc
I agree with Your post-5 - but not on the last sentence. When ONE of the three switches in the wiring of the Self-Hold-Circuitry of "N-Relay" is faulty always open then never can be Self-Hold established. Greetings Rolf

#7 1 year ago

Rolf - I was explaining the operation as designed. I do agree that his game will not lock-in if any of the 3 yellow switches are never closed.

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