Triangle + circle. Not just circle. Careful going into the menu, earlier modbo chips would die from accessing/saving settings. I'm not sure how the 750 behaves there.
Doesn't look like he connected them to each other. Seems to me from the start he did not connect point H as some diagrams claim pal consoles don't need it (even though it's apparently the other way around, ntsc consoles not needing it) and the solution was to connect both H & G to the correct points on the motherboard.
The alternative 3.3V is the via (the circle/hole), you can see it on this diagram for a different chip.
http://campad.com.au/products/playstationII/PS2PAL-V5-diagramme.jpg