Trying to bring a game back from the dead (Gottlieb Big Top.) At power-up, nothing happens.
Before I do anything else, I want to check the transformer, but the labeling on this one has me a bit confused, so I'm not sure what voltages I should be seeing or where I should be seeing them.
This particular transformer doesn't have everything labeled, so I'm not sure what's what.
On the top, I've got terminals labeled "High," "Normal," and "Start," along with two terminal that are not labeled.
On the bottom, I've got two terminals that are not labeled. The one that I've noted as "3" in the attached image has a line from the power cord coming into it.
I need to test the output voltages, but I'm not sure where to put the leads. Is the lug labeled "start" the one that's often labeled "common?"
I AM getting 110 volts between "3" on the transformer and "A" on the fuse, so our fuse, cord and power switch are good.
In my previous EM adventures, I've rarely needed to deal with transformers at all, and when I have, everything's been labeled.
I should be able to see three voltages - 110 volts (input), 6 volts, and 24 volts (output). Between which points should I be checking to see those voltages?