2DS XL mod to One Screen retroGaming

[Dreeefric]

I have a 2DS XL with the top screen broken, And I would like to change it to a one screen retrogaming since it can do up to N64 and PS1.
The problem is that I can't find on internet the solder point to put the resistance in order to boot the 2DS with one screen.

Someone could help ?
thanks