Jim,
In case you're not aware: when you do get it fixed, the LunaPros that I've seen took mercury batteries, which are no longer available. Alkaline cells don't provide stable voltage and aren't available in the proper voltage. Bogen makes an adapter kit with a diode in it that reduces the voltage on silver-oxide batteries to that used by the LunaPro. I was going to mention that I bought one LunaPro that had a battery contact that wasn't making proper contact. Cleaned it up with one of those fiber-glass pencils and bent it up a little bit. Works like a charm, now.
Bill