Iso dumb question

Atari The Jedi

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So have an isolation transformer 5610-09535-00-A, it was in a defender a thousand years ago, I have it in my Z back many years now.. Anyways, I have to rewire anew monitor to it, and I can't remember with lugs 9 and 10 I know they're for the AC but I don't remember if one is considered hot and the other neutral or if it matters if I accidentally flip it? I don't work with the ISOs that much. I did a search here and I found it was answered before but with a picture that is now long gone. Does anyone else know? I already have all the other lugs hooked up to the boards, etc . Thanks in advance 😎
 
the power for the monitor has no polarity. what's wild is that's the exact purpose for the isolation transformer, it eliminates hot/neutral and is just 120V AC.

there's an elaborate scientific explanation for it, but not right now. my short explanation is: the reason is the -120V DC anode end of the bridge rectifier on "hot chassis" monitors is connected to ground, and neutral and earth ground are connected together at the wall service. you would effectively be shorting the power to ground, and that's why the - end of the bridge rectifier is what gets shorted out if you connect straight wall power with the earth ground connected to the monitor frame.

I'm probably missing an element there somewhere, but the way an isolation transformer really works is the primary side (wall power) and secondary side (monitor, power supply, marquee sometimes) have no physical connection, it's generated by a magnetic field.
 
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