Still getting the error after the initial touch ups so I proceeded to look at the custom chips. Nothing looked out of the ordinary, but I notice that a slight pressure on two of the chips yielded perfect graphics and game-play. This lead me to up-skill in the smd way of soldering specifically re-flowing those damn custom chips.
These are the two troublesome chips:
1. The BCU-2 and
2. the custom chip on the "F" position of the board.
So I proceeded to re-flow them with great success! As I was greeted with perfect gameplay.
I finally cleaned up the residual lacquer and sprayed on a new coat to extend the life of the board.
The STV board also had a know SH2 processor malfunction as pressure is required on the chip to allow games to boot up properly or it will error out. It is the big square one on the edge of the board.
So I applied my newly acquired skill (plus a little bit of wick work to get rid of bridges) and presto!