Quoted from Jimmyhonda:So, I switched out the opto board from my Shadow to my IJ and the left ramp opto still doesn’t work. So, I believe that leaves the connector or the opto(brand new) as being the problem. Any suggestions how how I can narrow this down even more to find the issue? Thank you!!
Are you referring to the the small opto board or the larger opto board? It is possible that you have a bad chip on your CPU. You can jumper the pins on the CPU to verify if the CPU is working, or if it a cable.