Thanks guys for your replies!

I connected my multimeter (amp) across that open fuse and the backlight
came to life. It was reading around 1.90 amps so you guys are right
on. My next problem would be finding these pico fuses .125 long
preferably locally (SF bay area).

Do you think I could just wire up one of those big fast-acting glass
fuses or should that be slo-blows that I can pick up at Radio Shack.
Hummm maybe I can find one in my parts pile.

Al