You have 9 pins in your j1 connector and 8 pins on your board. The leftmost wire isn't connected to anything.
At least that's how it looks in the one pic. I'd double check that, and get rid of the 9th 'rib' on the connector so it doesn't cause confusion.

Make sure all the pins are going into the correct circuits.

You didn't. Your DC + output is correct. The two AC terminals need to be measured with your meter on AC and the leads one on each of those terminals.

The output being correct tells me that your input is OK. Your loss of voltage is farther down , a trace, connector, or some other wiring.

What quench said some of the connections look like they need to be resoldered.

Usually I say go for original boards, but in this case, almost all the repros are better. I use the nvram.weebly one, since I can get it as a kit. Might be expensive for you to get there so maybe go with one made in the EU?