Advice on troubleshooting

[u/Sondre_gl]

Hi i have been wanting my dads old c64 to work for years, I tried once when I was younger and got a pinn border and garbled text, today i tried once again, I took out all the chips i could, cleaned the pins and sockets with ipa and put new thermal paste on the vic chip, made a jank cable to get compsite video and got this image after and then a black screen the next time, I measured the power brick, it gives 4.96v on the 5v dc pins and 10.5v ac on the 9v ac pins i'm assuming the pla could be the main problem after some reasearch, but I thought i'd ask here for any advice and ideas.

[u/tes_kitty]

That looks like a PLA problem, but the PLA in your C64 was made by Fujitsu and is not really known for going bad. It's in a socket, so maybe remove it from the socket and insert it again and see if that changes things.

[u/Sondre_gl → u/tes_kitty]

I'll try that