Hi all,

I just finished a complete tear down, touch up and rebuild/clear coat on my Wh2o and it is starting up and playing, however there are a couple of weird electrical things happening since its back together.....there is one light staying on under the boomerang bend insert, the rear VUK will sometimes fire when there is no ball in there for 2 or 3 times in a row, and once in a blue moon it will think your ball has drained while still in play....I dont have much experience with diagnosing the electrical things so any help (especially step by step directions) would be appreciated...

I have checked all connections etc and havent found any lose or mis-aligned connections anywhere....

Ya...I'll take a closer look again...maybe I have a connector mis-labeled or something...

OK....fixed one issue when I found a bad solder on a pop bumper that was causing the light to stay on, but I am still having trouble with the rear VUK firing randomly during gameplay. I have tested all the opto's in the VUK (3) and they are all testing fine.....I have also re-seated all the connections both under the playfield from the optos and in the back box.....any thoughts.....

The solder on one of the pops that also connects the wire to a light at the other end had broken free from the pop...it lifted and was touching a light socket....not sure why but that light stayed on....actually found the problem trying to find out why my pop bumper light was off....

thanks, I will check the cup as well....it isn't causing problems when the ball is actually in the VUK, but elsewhere on the playfield is when the VUK will randomly fire several times....it seems to function fine when the ball is actually in there.

Issue solved...found another poor solder on the opto in the VUK....Thanks for the help everyone!!

Yes, failed solder joint...I pulled the VUK to give it all a closer inspection, and as I removed it, a wire that had appeared solidly attached pulled free from the opto board....