Does anyone have a spare PSP mainboard they could send me? It's fine if it's broken, has chips removed, etc. I want to experiment with techniques to attach to some of the traces before I try it on a working PSP.
Why would you do that with a PSP mainboard? Anything with small traces will work, such as a PC motherboard. I used to practice soldering SMD chips on PC motherboards, and now I'm quite proficient at it.
Clearly there are different definitions of "small"... Track/space width on the PSP is about 3-4 mil, and I haven't come across any other circuits with 01005 discretes yet. Even getting a board made with those specs pushes the limits of my usual PCB source...