Neo Geo AES in junk state from Japan fixed by failure Work RAM error 

This weekend arrives this jewel, the roll royce of the nineties consoles, the Neo Geo AES.
It is a console that I bought through ebay in a store in Japan as junk state, according to the seller it was sold in junk state and it does not work. In this video we will try to detect the problems it has and repair it.
These are the schemes on which I have based to be able to repair it:
- The AES console performs checks when it is turned on without any games. Here the different colors and the meaning: wiki.neogeodev...
- AES chip information: console5.com/w...
- RAM scheme, CPU 68k and Neo-C1: console5.com/w...
- Datasheet of Work RAM chips (U1 and U2): pdf1.alldatash...
Material used:
- Phillips screwdriver.
- Isopropyl alcohol and cotton swab or isotope.
- Multimeter to measure continuity.
- USB digital microscope x500 (optional).
- JBC 11w fine tip welder.
- Tin and Flux JBC liquid.
- AWG30 wrapping cable.
Hope you enjoy the video :D