hello All !!!
I thought I leave you this guide I made.. this is a recollection from loads of posts and info and pics I have been finding around this forum and other websites, I use it to troubleshoot a NS
there are still areas I haven't yet been able to work out.. for example what happens if the switch doesn't have touch but can read games, tried different daughter boards and all the same (known good) and also if I inject 1.8v in the 4th pad on the top of this little board.. I get touch ! but then wont read cards... we deffo need someone to find the PCB circuit diagram tho!
for now.. I hope the attach works for you
--------------------- MERGED ---------------------------
EDIT - here it goes.. this is a map reading of voltages and Diode mode for the connectors in case someone finds it useful to check for shorts