G07? Double check... God, I can't ever remember the number... C302 I think it was. The dot for polarity is printed wrong on the bottom of the chassis. Compare it to the drawing on the parts side to make sure you didn't put it in backwards.
If it was working before you did the kit, but has collapse after the kit... with most monitors you can say "Well, it's probably something you did wrong"... with a GO7... there's no telling. Shit on them fails left and right is seems after cap kits. But, since you do have vertical collapse... then the other two big failures are good. The flyback is still alive, as is the HOT... so... yay that.
Double check cracked joints, reflow the connectors for the yoke connector, and give everything a good twice over.