Quoted from rooky79:
Hey guys, I’ve had a couple of issues with my GB Prem running code 1.13 and I’ve got someone onto it to fix, but figured I’d chuck it up here in case someone had a similar issue.
First, the librarian scoop wasn’t registering and looked like a switch issue. The switch was replaced and still a problem with intermittent registering. Turns out it was the connector. So that got changed and now works right as rain.
Then the optos in the subway and right orbit went dead. They don’t register at all. There were some VUK kicking off too by themselves but I wasn’t there when they had a fix for that.
Just wondering if it’s anything to do with the node boards I keep hearing about shitting themselves. I have next to no experience in troubleshooting this stuff
Cheers in advance
For the optos, I belive they just plug into a distribution board, Follow one of them back from the opto to the connection and I'd check all those connections and see if they just came loose.
Have all the service bulletins been done on your machine? The later run machines had them done from the factory, but early to mid run you may not have them done, and that can definitely mess up your machine:
Node Board component reinforcement kit (so the diode doesn't break off the board):
Capacitor kit to stop false switch activations:
Being international, I'm not sure how you get these service kits. In the US, you just call Stern and they send them to you for free. Maybe contact your distributor?