First post, by awergh
So I bought another 486 board on ebay (apparently I'm really bad at buying AT boards on ebay as I never seem to get one that works properly)
and from pictures and even first look it looked fine and it also even POST which was good except there was an error about the keyboard interface
and that the keyboard didnt work.
So having a closer look under the AMI key IC I see that there is some green battery damage 🙁
a few contacts in the AMI key IC socket are green as well as basically all of the contacts in the left IC underneath the AMIKEY
323032K SN7407N
So I guess my question is can I just cleanup the contacts with vinegar and then letting the board dry (fairly sunny outside today) or am I likely to have to replace the battery damaged IC.
It is my own fault for not picking a board that was known tested good but sigh other then that the board looks fine, I presume the previous owner cleaned the battery damage they could see although one of the tracks on the pcb looks like it might have been damaged but it did POST but I'll worry about the immediate concern of the keyboard not working first.