(Topic ID: 139142)

Little Xenon Help needed. (Coils)


By Arcade

4 years ago



Topic Stats

  • 4 posts
  • 2 Pinsiders participating
  • Latest reply 4 years ago by vid1900
  • Topic is favorited by 2 Pinsiders

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#1 4 years ago

Got a Xenon I have been restoring. Just got it all cleaned up and put back together.
Sent the MPU board off for new game roms and jumpers and it just arrived.
Slapped it in the game and for the first time ever the game booted up.
All displays work except the bottom right one.
The game coined up and started. Yes!!!!
The flippers flip and most things work on the playfield.

Here is what does not work yet that I need a bit of help with as I know nothing about Bally Solid States.
1. The ball does not kick out to the shooter lane. Coil Ohm looks good and wires are soldered well.
2. The pop bumpers score and sound but do not pop. again coils test good.
3. the left saucer kickout does not kickout. but the top saucer does.

I think that is it.
Not bad for a first time boot up of a long time dead game.

#2 4 years ago

Check from a ground strap to a coil tab and make sure each dead coil has voltage.

You may have a break in the chain of wire that daisychains them all together with the power.

#3 4 years ago
Quoted from vid1900:

Check from a ground strap to a coil tab and make sure each dead coil has voltage.
You may have a break in the chain of wire that daisychains them all together with the power.

Thanks Vid.
Can you also ground the tabs on the driver transistors like you can on Williams System 3-7 to make sure they are good?

#4 4 years ago
Quoted from Arcade:

Thanks Vid.
Can you also ground the tabs on the driver transistors like you can on Williams System 3-7 to make sure they are good?

Grounding the tabs will show that you have continuity from the driverboard to the coils, but it does not test that the transistors are good.

With that many coils dead, I'm thinking disconnected power wire, more so than 5 bad transistors..........

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