(Topic ID: 163266)

Space invaders

By wierdeer

7 years ago


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  • 60 posts
  • 17 Pinsiders participating
  • Latest reply 7 years ago by wierdeer
  • Topic is favorited by 3 Pinsiders

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#5 7 years ago

I go through Clays guides systematically, SI is the last game I worked on. These are generally the first things I do on these early Ballys

* rebuild rectifier board, check and replace fuses and fuse clips as needed, repin connectors, add specific mods to improve reliability. Check all voltages for spec.
* replace filter cap on SDB board, repin connectors, add specific mods to improve reliability, check display and +5VDC logic for spec and AC ripple.
* cut off and replace NiCad battery and replace with memory capacitor, NVRAM, or offboard battery holder.

http://techniek.flipperwinkel.nl/ballyss/rep/index1.htm

#38 7 years ago

I've repaired a few corrosion damage Bally's. Usually around 20-25 components over a good 3 or 4 hrs....but I would pass on repairing that one.

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