Mr. Pinball Tip:

Bally solid state pinballs often use .05uF capacitors across switches that are likely to have a short duration switch closure. The capacitor lengthens out the time that the switch appears to be closed so that it can be detected. Otherwise the closure will be missed on fast switches such as standup targets. The capacitors will fail eventually and may short out causing the switch to appear to be always closed. The quick fix for this is to remove the capacitor.

If you find that some of your targets are not scoring during the game but do during switch tests, then you may have missing capacitors. Also look on the bottom of the cabinet for capacitors that have been clipped off--this will indicate that you may have switches with missing capacitors.
Tip Archive

New tips are welcome and encouraged. Tips will be credited to those who contribute. If you would like to submit a tip click here.

For more information you may contact us by email, email form, or by phone at (801) 277-0888.
Go to: Home page, Photo Gallery, Classified Ads, Repair Tip of the Day, The Pinball Collector Register, Advertisers List, Site Map
© Copyright Mr. Pinball 2024. All Rights Reserved.