Troubleshooting a "black screen" C64

Описание: In this video I troubleshoot and repair a Commodore 64 mainboard. (Assy 250407) It powers up but just gives a black screen... Can I fix it?

Video on how I remove chips from old computers:
   • How to remove chips without damaging the c...  

PLAnkton information:
http://www.melon64.com/forum/viewtopi...

PLA information:
https://www.breadbox64.com/blog/a-ple...

Video about PLA's by Francois (Eslapion) Leveille, the creator of PLAnkton:
   • #10 'The PLAin Truth About the Commodore 6...  

Information on why original PLA's break down:
http://www.zimmers.net/anonftp/pub/cb...