How to fix optical PCBs for Happs Trackball

[fredster]

Does anyone know how to actually fix the optical pcb's?

Where to get the special optical transistors and parts to fix a happs cheap?

Not a mouse hack, but actually fix one that's fried?

[JODY]

Happs sells parts.  Bob Roberts has them too.

[fredster]

I know you can by the entire optical PCB, but I was talking about just the optical transistor.

I can't find the source for those.

See, the optical PCB's cost about $12 ea.  I think those transistors cost about $0.50

Anybody ever Fix the optical pcb and have tips?

[Popcorrin]

You can make one fairly easy.  Check out Oscar's website, or maybe it was ultimarc,  I know one of them has a tutorial on how to make one.

[fredster]

It depends on the optics of the trackball to work.

Mostly people just replace them when the go bad, but man, it has to be easy to fix it.
I coudn't find a schematic parts list for the board.