Yeah, but the coils aren't a *continuous* draw. (Except for a few, like the magnets - but even then the draw is no more than one or two seconds). For those that pulse, the draw would be less than their 100% on draw as well. Things that really pulse (the LED speakers, start button, launch button) are driven off of +12v, so they wouldn't affect this.
All coils firing at the same time would likely blow the power supply, yes. So, how would a good benchark reading be on it? Only 1 coil firing? 2? 4? Half?
With the +5v and +12v, LEDs and the boards run off of those, so that there is at least a constant draw. When I measure the draw, I will do it with all GI and Inserts on white (so the R, G, and B channels are all drawing power). When reading the +12, I will try to get it with the Start, backbox, Launch button lights all lit up too.
Quoted from dnapac:
Additional Mean Wells are about $20...for me, it’s worth it to avoid damage to my $8000 machine
Yup, i agree completely. As someone who lost the smaller power supply after the first game played on it, I am still curious about what's being drawn off of it.