*wipes brow*
i think the negative of the cap (-12v supply only goes to the other side of the board through the via after all

now to see if the keyboard works fine
https://computerfairi.es/media/RCs3wIZC3lJzati6PWQ https://computerfairi.es/media/xpQNeWBIMHDvpDWEaOw

cap replacement looks good but i think the via at the top is supposed to go to some other pin because now there's a short across the new cap? i think i just read the schematic wrong (having a picture of a non destroyed board without the caps would help IMMENSELY)

https://computerfairi.es/media/zKXuPsv8FVizVv_Gg0k

current state of affairs on the Amiga keyboard traces, i got it like this from the person i bought i from https://computerfairi.es/media/TXD3-6cFUv2j2t6qxKM

someone wROTE ?? A THI NG A BOUT MY MUSIC ?????? WHAT THE FUCK http://chiptuneswin.com/blog/kumas-quick-shots-24/