A video covering the repair of a Commodore 64 which displayed a black screen. This system would not boot from cart and showed no signs of life. Also covers other causes of the black screen fault.
C64 Schematics http://www.zimmers.net/anonftp/pub/cbm/schematics/computers/c64/
The NES repair channel I mentioned https://www.youtube.com/channel/UCyUGc-ZrN4JSox9Kbvnxeug
Post time: May-06-2017