Centaur II
Bally, 1983Greetings,
I have a Centaur II pin that has the 1000s digit missing on all 4 player score displays and the center display. Any ideas where the signals come from for the particular digits or a place to start looking? Tried a new display, just to be sure it wasn't a coincidental problem with them all. The score displays are all 7 digit and the center display is 6, but they are all missing the same 1000s digit.
Thanks in advance for any insights.
Tom
From Pinwiki:
5.12.2.3 All displays are missing the same digit
If all the displays have the same digit out, then the problem is most likely caused by a bad connector at the MPU. The MPU daisy-chains the digit enable signal to all the displays, and if the same digit is out on all, then it's either an amazing thing that they all have a problem w/ the same digit, or the digit enable signal is not present. Check the connectors on the MPU and all of the displays. If all seem well, then one-by-one, disconnect each display and see if the problem goes away. If it does, then there's a short or a bad connector problem on the board you just removed. Be sure to turn the power off between swap-outs, and wait 10 seconds for the high voltage filter capacitor to discharge before you remove any connectors.
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Kutztown, PA