Quoted from Kahanaohana:
problem#1 slide hole isnt recognizing ball, so it sits there for 15 seconds and machine does ball locate and kicks it out. Opto seems to be good.
this still sounds like an opto problem to me. if the ball isn't being kicked out automatically, then the opto isn't recognizing that the ball is sitting there. the ball search is merely firing off all of the coils in an attempt to "find" the ball.
here's a checklist that you can run through for your optos:
- clean the opto LED's with alcohol (dirty LEDs can interfere with being able to detect that the "light path" has been broken
- check to ensure that the wires leading to the opto's have a good connection (test with continuity on a multi-meter).
- check to ensure that you're receiving 12v to the opto boards (test with multi-meter)
to test the opto's in switch test mode:
- take a digital camera or cell phone camera and point it towards the emitter half of the opto (clear colored LED) and see if the emitters are glowing like the sun through the camera display. If they aren't, your emitter isn't working
if the emitter isn't working, you can still check the receiver side. take a regular flashlight and shine it toward the receiver of the opto (black colored LED) and then block the light and see if the switch works. if the switch works using the flashlight beam, your receiver opto is ok, otherwise it's not working.