Possible ground issue on Ric 4003

[kubacki]

I recently swapped my Rickenbacker 4003's bridge pickup cover assembly for a chrome plexiglass pickguard. After putting it all back together in the order referenced at http://www.rickenbacker.com/pdfs/bpickups.pdf (minus the stock horseshoe, obviously) the output of both pickups is considerably weaker than before. I figure this has something to do with the grounding, but I'm not sure exactly what to do. Any help is appreciated! Thanks!

[napalmito]

Check that both pickups do have their cold wire going to the ground.

Maybe the original pickguard was covered in conductive material and your actual is not. Then a few pots would not be wired to ground.
But I don't know a thing about Rick' electronics, so I'd request a focused snapshot of the electronics.