Duke 3d SC-55 https://www.youtube.com/watch?v=uihO0SoMWZ8&list=PLM_1RV9kJAoAJVKV32ZaiiZPvhjJcUyHp&index=2 To my ears, that doesn't sound like a Sound Canvas SC-55 at all. Indeed there's something off to those recordings. Maybe some bad transcoding of the audio from Youtube? It does sound overly …

This brings me back to the scary days of early USB.. looks like that inductor worked as a nice fuse.

I'd guess it's a way of tracking lot number for PCB manufacturing. The FCC ID is the same, once something is FCC certified you're not really meant to change PCB layouts and stuff or anything that could impact EMC.

For many years I've found that Intel integrated graphics on laptops or motherboards has had way better support for old video modes than Nvidia/AMD/ATI.

Roland SC-50 board photos: https://imgur.com/a/3okOeYN DAC: NEC D63200

Recently acquired a Roland SC-7. PCB photo here: https://imgur.com/Rw36CdN More detailed photos of the chips: https://imgur.com/a/LrmayY9 Only lifted one bit of PCB metal removing the RF shield! Edit: DAC is NEC UPD6376.

Hi, I acquired a Roland RA-50 and have been using it well by switching it into MT-32 mode through the buttons and using SoftMPU or an Ensoniq VIVO ISA card. Everything seems to work fine except for the Lollypop title music. It starts to sound all jumbled over time. Can anyone with a Roland RA-50 …