Doepfer

I recently received a Doepfer Monster Case, and much to my disappointment, the entire right side of the case doesn't power up.

Upon further investigation, the -12 LEDs light up, but the +12 LEDs do not.
All of the obvious connections seem to be in place.

Might anyone suggest where to start troubleshooting this issue?

Boy, did I ever learn my lesson!...
NEVER load up a case full of modules BEFORE checking the power status 
of ALL of the boards! ;-)

Thanks a million
Len