game elf 412 in 1 upright two trackballs

[chitlah]

I have the 60 in 1 game elf and both trackballs work but when i got my 412 in 1 i cannot get the
second trackball to work.  The only time it somewhat works is when i use this splitter cable and then
the joystick on player one works up and down and the trackball on player two works left and right

[behrmr]

Without seeing the whole harness and connection to the trackballs it's difficult to say. But I would suspect you have something wired wrong in the "splitter".  Is that a homemade cable? The cable you buy should have all the wiring for two trackballs.  Or it could be a compatibility issue with the game you're trying to play.

[Drnick]

See the attachments for pin-outs on the 412 in 1.  and the pin-outs for a 60 in 1  (PLEASE DO NOT TAKE PINOUTS FOR GRANTED, ALWAYS DOUBLE CHECK VOLTAGE and GND)

So looking at that previously you would have had 2 x 6 pin connectors both with gnd and 5v connections, 1 for each trackball,  looks like the new board has 2 x 5 pin and shares 5v and ground.  I'm sure with the pin outs you should be able to create a converter for them.

Hope that helps a bit.