Where to begin... I installed some speaker grill and flipper button LED's a few months ago, and then this happened: Tried to turn it on. Got a "SLAM TILT SWITCH CLOSED" message. This overrides any diagnostics and menu functions. Checked the coin door slam switch and the bottom of cabinet slam switch. The latter shows 2000 ohms, which is basically an open, right? I disconnected the connector going to it, and upon start up I now have 3 errors. Switch 25, and F3 and F7 (both are flipper EOS's). I started looking at fuses also, and found F105 blown. I replaced it, hoping my headache would end, to no avail. I've also got solenoids firing at startup (maybe the cause of the blown fuse?), I think they're both VUK's. The pin was working fine prior to the LED install, and obviously that was the first thing I removed when starting troubleshooting. I initially had piggybacked them into J106-108 vicinity. I've reseated all connectors. I'm hunting and pecking at this point. Could use some direction to help me get my bearings!

I checked the fuse twice. Maybe I'll check the voltage while it's powered up.

13 Vac. Looks good...

Seems like I have several different voltages coming out of those. I know my color dmd is piggybacked to one of them, and it hasn't had any display issues. Let me check again tonight.

Do you know if I can swap my Black Rose WPC Fliptronics driver board with the JD WPC DCS board, for troubleshooting? They look nearly identical...