Author Topic: Bally 8 ball problems!  (Read 218 times)

0 Members and 1 Guest are viewing this topic.

Offline pinfrog

  • Trade Count: (0)
  • ****
  • Forum Posts:
  • Perth WA
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

  • Pinball Restoration is my passion
  • Administrator
  • Trade Count: (+9)
  • *****
  • High Score Initials:
  • Forum Posts:
  • Melbourne
  • ABN 68 283 634 461
    • Ride The Boney Beast
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" ?
Aussie Pinball - Proud to be Australia's Premier Pinball Forum

http://www.australianpinballrestorations.com.au/

http://www.rtbb.com.au/catalog/

We carry the largest range of NEW Ramps in Australia

Offline The pinballist formally known as Dean Morgan

  • Trade Count: (+3)
  • ******
  • Forum Posts:
  • Berwick Vic
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.
Im a Gottlieb Man - System 1 & 80 Rock