This is an odd one. Usually when you have bad capacitors in the panel itself, you get some sort of an image. just not a very good one.

Hey for shits and giggles, take the LCD panel out of the metal frame. (disassemble panel). Check for leaking caps there, but more importantly check the picofuse(s) on the panel, as missing logic voltage will cause the same thing, your BIAS voltage is present but your logic voltage is not.... ive never opened, seen, or owned a PB100, only the newer models and they are different.