Apr 022014
 

I worked out a way of seeing the second part of the Nintendo PCB on my test screen so I could see and fix any issues:

Nintendo Vs Fault 3

Unfortunately I came across a lot of problems with Super Mario on both sides of the board 🙁

Nintendo Vs Fault 4

I found a problem with the green colour on the second side of the PCB. There were faults with the chips at 1P and 3P and I’ve now replaced them:

Nintendo Vs Fault 5

…..and finally I managed to get Super Mario fixed! I found a broken LS157 at 6K, after I spotted issues with the RAM at 8L:

Nintendo Vs Fixed!  Finally!

Hopefully I can now get down to playing the game rather than trying to fix it!