I need some advice. I'm about ready to pull my hair out. Here is what is going on with vector:

The left top drop target drops with any of the "defender" targets. Here is what I have done so far,

-Verified all the coils on that row/column are the correct single wound 3 lug coils
-tried a known working sol expander board
-Replaced diodes on suspect coil, and the 3 defender memory coils
-repinned mpu switch connectors ( id do this regardless)
-verified there is no continuity between '90' and '91' solenoid bus
- run the switch test and everything is normal
-run sol test and everytime the defender targets activate, each one activates the top left target.

I noticed the 1 dt gets it's power from the J1 connector as opposed to J5 like the rest of them. If I disconnect J1 it will still active when the 3 defender targets drop. I'm out of ideas. As far as power goes, the relay controls that, and I've confirmed its doing it's job by testing the continuity between the 2 sol bus'.

Any ideas?

ha! I checked every coil on the line except for that one haha. I think i have a spare 3 lug here so I'll swap it out and see what happens.

you nailed it! I don't know how I overlooked that one, as I had the exact same issue on a medusa not 2 months ago. But hey, at least its all working right now. Thanks!

Done. Cheers!