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(Topic ID: 35965)

Vid's Guide - Bally/Stern Driver Board Repair / Bulletproofing.


By vid1900

7 years ago



Topic Stats

  • 210 posts
  • 57 Pinsiders participating
  • Latest reply 3 months ago by Neal_W
  • Topic is favorited by 325 Pinsiders

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Post #2 Bally -22 driver board section Posted by vid1900 (7 years ago)

Post #81 Stern SDU-100 board section Posted by vid1900 (6 years ago)

Post #96 Rectifier board section Posted by vid1900 (5 years ago)


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#200 1 year ago
Quoted from vid1900:

On the back we always need to:
1. Tie C23's Negative lead to ground. Use a short length of insulated wire.
2. Tie C26's Negative lead to ground. This can be done with the excess leg from the new cap - so don't trim it until you tie it in.
3. Tie Test Point #1 to Test Point #3.
4. Repair any missing traces or damaged foil.
[quoted image]

I should shut up and stay in bed. I have repaired well over one hundred of the -22, -16, and the early Stern SDU 100's. I have had them come in with all manner of burns some very severe. But that forgen little fuse was fine, it didn't do sh!t. I know nobody replaced it before I got it because back then you couldn't find one of them to save your life. So why bother adding that fuse? Just for looks I guess, but now it doesn't match the manual unless you go as far as putting an addendum in there. Of all the games I have sold over the years I only had one customer ask about the grounding mods on the driver board. He thought they were hacks. c'est la vie.

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