I don't have a detailed guide with images, but I can give a bit of advice for removing the top screen. After removing the circuit board, you'll need to remove the back cover for the top screen or the hinge-pin won't move. On the hinge side (not the side with the ribbon cables and wifi antenna) you will see the white part of the hinge pin.
***Please note, the top screen has to be fully open for the hinge pin to move***
Using a small flat blade, you can slide the hinge pin so that the retaining plastic clip is now free. After that you can close the lid and slide the hinge pin the rest of the way out. Be gentle with the ribbon cable as you slide them through the slot in the base.
You have to roll the ribbon cables into a tube to get them to slide through the hinge area. Pay particular attention to how the 3 ribbon cables are layered as it is very important that they go back in the same order!!! You can use scotch tape to hold them when you roll them up.
When putting it back together, the lid has to be in the fully open position again for the hinge pin to slide all the way into the retaining clip. You will see how the white part of the hinge pin fits into the retaining clip and that it has to be in a specific position to slide all the way back in.
If any ribbon cable gets torn, or they are not fully connected, the DS will not function. And I mean ANY of the 10 ribbon cables throughout the unit.