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Mini PAc/ Opti PAC trackball issue
vizzinni:
Try buying new optics from fixumdude http://forum.arcadecontrols.com/index.php?topic=48855.0. I used a set to refurb an old Wico trackball and they work great.
Droler:
Thanks everyone - Bob Roberts has a direct replacement for the encoders (and I bought the TB from him originally) so I'm ordering a replacement.
Yep, tried reversing the plugs and the problem migrates right into Y instead of X.
This TB has been in a MAME CP for over 5 years, so it's due for some overhaulin' anyway.
Thanks again to everyone who responded - I'll follow up when I get the part.
Droler:
OK - I received a new Happ encoder board (the very small PCB with a few resistors, a chip, and photo sensors) from Bob Roberts today and installed it on the trackball, and it's fixed 100%.
For the record - this was a red board as previously mentioned in this thread, and it's working great. Thanks to all who replied. :applaud: