The red board thinks your batteries are severely overcharged and is only passing power from the charger to the output... You have those wired in a 4s1p which that board doesn't support
His confusion is that you need 6 pins for VGA, not 4. The most I've ever seen is TRRRS, never TRRRRS. Not sure about the 403s though, we're currently in the process of setting up BB 2.0, so Noah may not be the most on top of weird server-side issues
As far as I can tell, they would have no reason to change the numbers, and I doubt they reused numbers from returned consoles, they had plenty of numbers, their total sales only used around 10% or so of the possible numbers, assuming the letters couldn't change (which they did)... Since we...
As nintendo used the S/Ns to verify you actually owned the console, they are calculated with an algorithm to make them seem fairly random (so even though they were sequential until they ran out, pushing them to start with 7, it doesn't appear that way). As for the 60s, they were the last...
It isn't too significant, here is a video showing someone adding a second output to show how much it darkens on his particular setup.
And yes, I mean put the converter inside the case (though I'm not sure how easy it will fit inside your case depending on your particular setup).
If there is a store around you that sells those kinds of batteries, you may be able to get it cheaper there (at least in the US), since you can get a refund on the core charge by bringing in the old battery
If you're making a gwii, that very much gets cut off when trimming... There are a couple ways to do HDMI out, the easiest being to put a wii2hdmi or similar converter (@Shank knows which one is actually good IIRC), however putting one alongside a built in screen will darken the image on both...
The ninty slots come straight from the original board, generally we just cut the board right around the part we're looking for to make sure we don't melt it.