Author Topic: Bally 8 ball problems!  (Read 273 times)

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Offline pinfrog

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Bally 8 ball problems!
« on: February 26, 2009, 01:48:25 PM »
I have just taken ownership of an 8 ball.Two problems. First  is with the displays, all the displays are strobing/flickering really fast and the second prob is a section of lights on the backbox have suddenly failed to work.Can someone PLEASE HELP diagnose. Cheers Les. !@#

Offline Strangeways

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Re: Bally 8 ball problems!
« Reply #1 on: February 26, 2009, 01:59:20 PM »

Interesting one Les. Check the connectors to the CPU board. Is there any corrosion around the bottom section of the board ?

Isolate the displays - Start with just one display connected and move it around each of the players.

GI - Check the connectors on the power board - any "hacks" ?
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Offline The pinballist formally known as Dean Morgan

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Re: Bally 8 ball problems!
« Reply #2 on: March 01, 2009, 05:27:05 PM »
With Nino on this one, the strobing is most likley a bad connection on J1 on the CPU board. Maybe the pins are corroded (sand them lightly with sandpaper).  I have had this problem before and it was connector related.

The GI could be a connection on the backbox wiring  itself check if any of the wiring that loops from lamp to lamp (steel braid) has come away or is broken in any way.
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