Re: BTC 1853/1855 jumpers question
Posted on 2024-02-04, 11:15
I recently bought a similar card with a jumper in one of those positions, and was getting no audio out. I traced the header and found they're connected to pins on the ES1868F meant for hardware buttons for volume up/down/mute. They're shared with pins that read the ISA PNP EEPROM which is the nearby …