(Topic ID: 265963)

Gottlieb Balls Played unit - Advance to player 2 on 1 player game


By perry1670

3 months ago



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  • 5 posts
  • 2 Pinsiders participating
  • Latest reply 3 months ago by perry1670
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#1 3 months ago

Recently my Dodge City has started giving me some fits. When Playing a 1 player game, the game will advance to player 2 and continue going back and forth until the game is over. It doesn't do this when playing a 2, 3 or 4 player game. Everything advances normally.

I've been thinking about this for way to long and now I'm starting to confuse myself, so any thoughts are welcome.

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#2 3 months ago
Quoted from perry1670:

When Playing a 1 player game, the game will advance to player 2 and continue going back and forth until the game is over. It doesn't do this when playing a 2, 3 or 4 player game

Inspect and diagnose this circuit with Alligator clip jumper wires,
Starting with the indicated switch on the 2nd Player relay (PB2) on the control bank.
http://www.planetimming.com/Pinball/troubleshooting/EM%20Troubleshooting.pdf
http://www.pinrepair.com/em/index3.htm#features

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#3 3 months ago

Thanks for the info, and how on earth does everyone get those spiffy, highlighted schematics anyway?

Aside from that: Jumped PB2 - No change, Jumped BX - Player Unit pulsed 5 times. I checked CC and DD, same 5 pulses of the Player Unit. That would mean the signal is getting through B relay and through the Jones plugs appropriately.

So if the pulses are making it through B then it would indicate that B is dropping out before it can send 4 pulses through.

#4 3 months ago
Quoted from perry1670:

B is dropping out before it can send 4 pulses through

Seems unlikely since when you jumped the BX switch the Balls Played unit pulsed 5 times.
Have a closer look at the BX switch.

For a switch to work 3 things are necessary:
1) When open, there should be a small space between the contact points (duh)
2) When closing, the long blade's contact point should push the short blade's contact point enough to move the short blade
3) The contact points should be clean, which they usually will be if #2 is happening

#5 3 months ago

Do you know what I love the most about electronics? Intermittent problems.

Went down this morning and poof, no issues.

At any rate, I believe that you are right HowardR in that the B Relay dropping out is unlikely. So if/when this problem starts backup I"ll check the BX relay switches again as it would make sense that the switch for the Balls Played unit would be causing the problem.

In the meantime I'll mark it as solved. Thanks!

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