Thank you for a quick response. It cant be a glow lamp because the plastic tube is sensitive to heat. It can't be a capacitor (the plastic tube). My original thought was it was a fuse, but if it is, it's blown and I have no idea what to replace it with. Well, I could just short it for testing and see what happens... And if the circuit works, I will guestimate the value. That sort of could make sense since the original fault was some blown LEDs on this board and a bad voltage regulator on the other (attached to it) board...