mbandalauk wrote on 2025-10-29, 17:19:

Yeah, I was lucky to find my PCM-3370 SBC — it was actually headed for the skip when I spotted it in a pile of scrap boards. These things are quite expensive nowadays! I hope you manage to repair your board and get your adapter tested soon.

By the way, could I know the value of the L2 component on your backplane? While I was testing, a metal connector accidentally touched the gameport connector, and it blew the L2 inductor. Everything else seems to be working fine, but I assume the joystick will not function without that component.

Ouch! Ya, be careful! The way I had to organize the layers meant the top copper pour is all 5V. This is the main reason you need to use the isolation washers on top. L2 is the joystick 5V source and is needed to function. You could use a zero ohm jumper if you had nothing else, but the part is this ->https://www.digikey.com/en/products/detail/ta … 5HS250NT/957833, (25 Ohms @ 100 MHz 1 Power Line Ferrite Bead 0805 (2012 Metric) 6A 4mOhm).