SNES SNS-CPU-RGB-02 Video circuit (w/ S-RGB A encoder)

2 years ago I've traced the circuit of my SNS-CPU-RGB-02 to help people figure out how to complete the RGB circuit of their snes2/sfc jr. and NUS-001 (FRA) systems.

With help of Link83 I was able to draw a more accurate version of the circuit:




My original comment over gamesx forum:

The diode in the circuit are only for static discharge protection and are not really needed.

Link83 found the datasheet of one Rohm chip with similar design:
http://www.datasheetarchive.com/pdf-datasheets/Datasheets-309/70953.html