(This is a repeat of a fix from earlier in this thread. Repeated here for emphasis.)

*FIX FOR GI FUSE BLOWING*
I had this EXACT problem as well. After I had replaced all the lighting (incl GI) with #44 instead of #47 which was installed at the factory for a reason.
Putting an amp meter in series with the GI fuse reveals that the 44's in the GI pull 11 amps. So no wonder that it blows the slow blow 10 amp fuse after bit when it warms up enough to do so. After all it is a slow blow fuse of course.
The fix is to go ALL #47's or go LED. If going LED make sure the stay alive switch is set to OFF then they won't flicker.

Hope that helps!

David
pinballdoctor.com

Yes. That switch setting is for the feature lights. The GI isn't affected by the switch setting (they are good with switch set to on or off).

Just moved a refurbed Superman working well and upon set up / putting the head and re-hooking up the connections, no displays.

No fuses blown. Thinking it must be a connector issue as when I took the suspect head over to a known working other Superman cabinet, all displays now work in this suspect head.

I'm thinking the issue is now cabinet wiring related either with the bottom connector that goes on MPU J2 connector or the J44 cube connector that goes to the power distribution board. Also could be the Transformer itself or it's connector as all these are cabinet domain items that the displays are dependent on.

Anyone else ever have a no display issue in the Superman and your fix?

Nice opening music selection George. Very appropriate. =)