Quoted from Arcade:Just tested and looked at them all.
Well since there are only 3 it was really easy. All the switches in the column are trough optos in the same board and they are working great.
The only other 3 switches are, plumb bob,
Left wire form and left ramp. They are all wired correctly and test great in switch test.
I can’t believe that one of the new optos I installed are bad but maybe that is it.
I can’t find my little opto light test card right now and putting my phone camera on any of them shows nothing.
You can test the receiver by shining an incandescent lamp at it. This way you can verify if half of the circuit is working. Do you have the correct voltages at the problematic optos?