Sadly, the current keyboard controller is soldered on and it doesn't hurt to add a socket to the board so the controller can get swapped easily.
Thankfully, the board doesn't have any battery damage and the battery started to leak, but it wasn't that much (2 droplets on the grounding point, but it's a big area and it powered on fine when I did the initial test after I took the battery off). My other board, on the other hand, doesn't POST and I even attempted to use both the AMI BIOS and the MR BIOS on it to no avail and it turns out there's more damage under the XT 8-bit slots than I thought and the RAM slots are fine and dandy, plus it needs a recap everywhere where the damage is at from the battery aftermath.
I'll look for a particular keyboard controller and slap it in and see what happens and I'll even attempt the one from my LB386DX board and see if that does anything. Were there any MR BIOS keyboard controller ICs back then as well?
Discord: https://discord.gg/U5dJw7x
Systems from the Compaq Portable 1 to Ryzen 9 5950X
Twitch: https://twitch.tv/retropcuser