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Main => Main Forum => Topic started by: boslaw2 on August 15, 2019, 11:21:56 am

Title: Happ trackball question about PCB's
Post by: boslaw2 on August 15, 2019, 11:21:56 am

I have an old Happ trackball with green PCB's. The trackball no longer registers horizontal movement, so I suspect one of the PCB's doesn't work. Can I replace the old green PCB's with the newer red PCB's? The trackball is the kind with the PS2/USB interface.

Thanks

Title: Re: Happ trackball question about PCB's
Post by: behrmr on August 15, 2019, 02:42:03 pm

You can but you will need to swap the dir and clk wires in your harness.  I believe these are the two outside wires in the 4 pin molex connector

Title: Re: Happ trackball question about PCB's
Post by: boslaw2 on August 15, 2019, 02:50:29 pm

I don't have the trackball in front of me, but are you talking about a molex from the trackball to the PCB? From PCB to computer is connected by USB.

Title: Re: Happ trackball question about PCB's
Post by: behrmr on August 15, 2019, 11:26:47 pm

Quote from: boslaw2 on August 15, 2019, 02:50:29 pm

I don't have the trackball in front of me, but are you talking about a molex from the trackball to the PCB? From PCB to computer is connected by USB.

The connector on the optic boards on the trackball.