Question from Jason: I just replaced an old power supply in my Raiden cabinet with an new adjustable one. I have a few questions…

To confirm it’s getting the correct voltage, where exactly should I be measuring it? I’ve read that some say you should test it at the board, and others say at the supply… I do get quite different results depending on where I measure.

With the game connected and powered:
At the power supply itself I get around 5.4v.
On the board traces next to the JAMMA connector I get around 4.7v.

These numbers may not be exact, since they’re from memory, but either way the voltage at the board was quite a bit lower than at the supply.

Which measurement is more accurate/important? Should I adjust the supply up to get the voltage at the board traces closer to 5v, or down to get the supply output closer to 5v? It seems like if I try to get the connections at the board up to 5v, I’d have to be fairly close to 6v on the power supply (which seems a bit high, to me)…

What is a good range for the 5v to avoid damaging the board? Are there symptoms to look for, to tell if the voltage is too high/low?

Should I also be checking the voltage at the JAMMA connector without the board connected?

Thanks.
Jason