Hi,
I have a bingo that's in pretty good working order, but there are a few things that are in need of repair. I'd like to get up-to-speed on how to do things myself, or at least know what I can/should tackle vs. what I shouldn't. For example, I have two bulbs that are dim (one on card 4 and one on card 6). I've verified the lights are good. I checked the voltage to the socket with a multimeter and I'm only getting 1.8-2V instead of 6V, but I don't know where to take it from here.

If there are some good online resources (videos, reading materials, whatever) that can point me to I'd appreciate it. Thanks again for your help.

Yes they were different numbers (18 and 23). I replaced the light with a new 47 bulb and that didn't help, but then when I replaced it with a bulb from another number, then all of a sudden now it's working fine. I must have messed something up earlier.