Quoted from MeEtc:
Hello zaza, I'm the new owner of the WCS in question, thanks greatly for your assistance.
I've encountered another issue, which I'm unsure is related or not. The opto for the TV award VUK is stuck closed as shown on switch edge tests. There is a Great Lakes Modular 10 opto board installed that has indicator lights for each emitter and receiver. The indicator lights are showing the opto pair is working, but the change is not being sent into the switch matrix. Unplugging the header does open the switch on the matrix.
Optos are normally closed switches.