Trackball question

[Stang5_0]

Greetings!

I just got my box all wired up, everything works cept the
trackball...Spinner works great and so on.  Tested the leads to the tb and
have power but no dice.....  Followed the docs at ultimarc to the t....
So I have a tb with power, but no movement.  I know it works cuz I tested it
in a Centipede machine and it worked great....
Ideas?

Thanx

[JustMichael]

Isn't there a active high and active low jumper on the Opti-PAC?  Have you tried switching this to see if that is the problem?

[Stang5_0]

I've tried a few things, I think that was one of them.  I have the centipede trackball and Oscar Spinner bith into player one ports.  That may be the problem huh?