Where is the best place to tap into the 120vac to power a switching ps in SI dlx.

Black Matrix

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Where is the best place to tap into the 120vac to power a switching ps in SI dlx.

Hey guys,
Where is the best place to tap into the AC wiring to run a switching power supply in Space Invaders Dlx. I could always tap into the the ac plug but if I did that, it would stay on all the time. I would normally tap into the ac line that feeds the monitor from the isolation transformer, but I'm not even sure the Black and White monitor is using 120 vac. It looked like it was using a 4x3 molex for everything. I would also look at the safety switch, but it only has a 2 wire safety switch, so 1 wire in, one wire out. Anyone do this mod to your SI dlx. Any pics of where you tapped into the AC. The wiring to the black light could be used. Any advice would be greatly appreciated. Pics would help even more. Thanks in advance.
 
does your SI have a double pole single throw on/off switch or does it have a single pole single throw on/off switch ?

if its a DPST, I would tap in after that

attached is a a/c wiring map from bob Roberts site to help you figure it out yourself
good luck

please note that a SPST switch is shown in the example
 

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I don't know. The safety pull out switch is a single wire. 1 in 1 out. I didn't even look at the power switch. I'll probably try to tap into the flourescent fixture like you showed in the diagram. I had checked the schematics and it appears to be 1 violet wire and one blue one if I can find a good spot where they come in at about the same place. Just have to make some longer ac wires to go to the switcher. The one from Arcade shop was a little too short to reach a good spot. But I'll check the power plug to see if its a double wire. If so, it may be the ideal spot.
 
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