Tracball issue.....again!

[numbnutz48]

Hey guys!

I'm back with a tracball problem again.....actually, it's the same problem as before. I lost the vertical movement on my 3" HAPPS tracball. I ordered a new board (the small one) from Divemaster and installed it this morning. hooked everything back up and to my dismay.....still no vertical movement! 

What is my next move as far as troubleshooting this problem? Is the big board the issue??

Please HELP!!!

Thank you

[DashRendar]

Do you have any other "mouse" devices, like a spinner or 2nd trackball?

[numbnutz48]

negative! Just the one tracball. When i plug a regular mouse in, everything is fine. When I plug the tracball in, only the horizontal movement works???

[RandyT]

Swap the cable connection from one of the small boards to the other.  If the problem follows the connector, it's a cable, or interface issue.  If the new board doesn't work, even with the cable from the other axis plugged into it, it's a bum board.  You may just be having bad luck with the small boards, but also make sure there isn't anything, like a short to neighboring wires, that is causing the boards to fry.  Also check the power going to the trackball and make sure it is what it should be, and make sure you are grounded when handling the PCB's.  Cold weather makes for dry air and more possible complications from stray static discharge.

RandyT

[boardjunkie]

IMPORTANT!!

If there is a chip on the optic board, DON'T unplug or plug it in with power on. The cmos ic's don't like this and will be rendered useless if you do.

[gatordad]

Since you took one out already, Id swap and see if it follows as well,
Stupid question, did anyone mess with your config settings, does it work in windows or just not in mame, if just mame tab and check your settings

[numbnutz48]

I'm not famliar with any other way to test as there is only one small and one large board. the two are connected with one 4 wire harness, with the main lead to the PC coming off the large board.

I'm wondering now if i even needed the small board in the first place?

I installed the new small board and the same thing happens with no vertical movement? Could the large board be the problem?

Oh, and it has no vertical movement in windows either so it's not the MAME settings.


****Upon further inspection it appears that the larger board is the one that controls vertical movement not the smaller one. Can anyone confirm this?

[numbnutz48]

Any new ideas on this thread or can anyone confirm my last post?