Model
The Neo Geo 'AES'.
Released on 26/04/1990 in Japan and on 01/07/1991 America and Europe
Motherboard
Motherboard
Showing revision 'NEO-AES3-6'.
I took this photo using the model I bought. Also, the previous owner re-arranged some capacitors to improve the video signal.
Motherboard with important parts labelled
Diagram
Main architecture diagram