This ISA video card doesn’t work. There are no schematics so this is going to be an adventure to figure out why this card bad. Get your oscilloscope ready!
I learned a good lesson fixing this faulty video card (Twinhead CT-6040S) | Adrian's Digital Basement
Submitted 5 weeks ago by cm0002@lemmy.world to retrocomputing@lemmy.sdf.org
https://youtube.com/watch?v=rQs_ioCPs4U