Hello !
I notice an error on the Nintendo 64 RGB Video Driver (http://gamesx.com/wiki/doku.php?id=av:n64rgb-ntsc) diagram. AFAIK R8, R9 and R10 does not seat like this.
On this diagram R8 is the green, R9 the red and R10 the blue. But in fact R8 is the red, R9 the green and R10 the blue. R8 and R9 are inverted between this diagram and the "reality".
Maybe this diagram refers to another motherboard revision ? NUS-CPU-03 differs from early revision on RGB circuitry ?
Same thing for c124, c125, c126.
I think it's just a trivial labeling issue on the schematic.