Anybody have an FMM or DDR

[zombie]

I tried making a custom cable harness for my DOS and I can't get it to recognize the optical sensors. Does anybody have a DDR that I could plug into my DOS to see if my DOS is the problem or if I trashed the optical sensors? If someone has an FMM I could plug the optical sensor into that could work too.

 

[zombie]

I found a IR LED in my spare parts kit and the DOS works correctly and I blew the optical sensors. I no longer need to use somebodies DDR or FMM.