SNK
2 repair logs
SNK — Neo Geo AES
This rev 3-4 AES was a service and upgrade rather than a fault chase: a full Console5 recap, a Unibios 4.0, the FirebrandX audio fixes that apply to this revision, and the 68 Ohm to 75 Ohm video resistor change. The VRAM was socketed preventatively while the board was open. Tested with Metal Slug X on a NEO SD Pro.
SNK — Neo Geo AES
This AES drew sprites incorrectly. Socketing the VRAM ruled out the usual suspect, then a reflow of suspect joints turned the fault into a green debug screen caused by a lost trace between the work RAM ICs. The cartridge connector with the smashed pin was replaced, and the original fault turned out to be a broken connection between the LSPC2 and the VRAM. Recapped with a Console5 kit and given the FirebrandX audio fixes along the way.
