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Need help troubleshooting 3" Happ Trackball

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ChicagoDave:

Actually I was mistaken.  I just looked at the old boards and:

55-0301-00 says that it is Rev. D
55-0302-00 says that it is Rev. B

On the new trackball:

55-0302-00 says that it is Rev. B

I cannot read 55-0301-00 on the new ball since it is mounted.

I'm confused.  How do I tell if I have the new boards????



ChicagoDave:

Another update on this.  I ordered a Happ USB Trackball kit from ebay and it contained the 2 boards as well as the cables.  I placed the kit into the old trackball and everything is working fine on the old one as well. 

It definitely seems to be a problem with the old boards.  Note this these new boards also had the same Rev numbers.

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