Anyone repaired a Stern 2x LED flash board? They are used in Indiana Jones at the ark, Cairo swordsman, and the skull. Marco has them...for $89 each. I've got three of them out. On one it looks like both of the LEDs are out, one has the LEDs lit all the time, and the third has one LED that lights dimly all the time and the other does nothing. All components except for the capacitor are surface mount, and the LEDs are crazy tiny.

Here's what I'm talking about:
http://www.marcospecialties.com/pinball-parts/520-5289-00
The LEDs are on the back.

I guess my main question is the LEDs. Everything else is a common part and nothing special. But the LEDs are incredibly tiny. I have the equipment to do SMT work: tweezers and hot air. But I'm not sure I could successfully switch out one of the LEDs. Guess I can try, I'm not going to hurt anything. But part of me thinks why bother? Looks like quite a PITA and I'm not sure I want to spend the time to mess with it.

They're about the same size as the resistors. The problem is the solder pads are underneath so there's really no way to remove them unless you use hot air.

I can troubleshoot the board, no problem. The reason I'm asking about the LEDs first is because when I compare the non-working boards to the one that works, the LEDs look blown out. On the non-working boards all the LEDs have white residue around them where it looks like the magic smoke escaped.

Did you replace any LEDs? Or was it other components on the front side?