(Topic ID: 66093)

Silverball Mania Owners Club & Restorations Fans Also Welcome


By Hellfire

6 years ago



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  • 123 posts
  • 40 Pinsiders participating
  • Latest reply 15 days ago by slochar
  • Topic is favorited by 15 Pinsiders

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#95 83 days ago

Just about done 'restoring' a SBM machine that was found in the basement of a house. I got an AllTek board and an LED adapter for the lamp board so I could outfit it with LEDs. The Comet warm LEDs look pretty good in it.

One nagging issue that still bugs me is that center 'N' spot target. It seems to not register a hit all the time. I gather this might be because it takes a lot of the fast shots, either from the outlane kicker or just from the flips. I've tried to adjust it but it still doesn't register all the time. Has anyone else experienced this? I'm wondering if it just needs more adjustment, needs a new switch/target, or possibly could having something to do with the Alltek board and how often the strobes 'sample' for hits.

Any ideas are appreciated. Thanks!

#98 83 days ago
Quoted from Atari_Daze:

Does it have the capacitor on it?
.047 mfd if memory serves.[quoted image]

Thanks for the suggestion guys! I'm at work but will check it out later.

#102 83 days ago
Quoted from lowbeau67:

new caps on some of my switches fixed my intermittent not registering problems. most of all the caps had been cut on one leg.

Are you saying the cap legs were cut deliberately? Is there a reason why someone would do that?

#104 82 days ago
Quoted from Tallon:

More then likely yes, when the caps fail they usually fail closed so the switch reads as closed all the time. One of the first things you should do when you get a new to you game fired up is go into test mode and see what switches are reading or not reading. then if its reading closed all the time, cut one leg off the cap and see if it clears. If it doesn't, no harm no foul. If it does, replace the cap. Most people don't replace them since the game is working, they call it good.

Hot damn that seemed to be the issue. Actually found the capacitor laying on the bottom of the inside of the cabinet. Tested it and it was working so just soldered it back in. I think we're good! Thanks everyone for the pointers.

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