Shadow Warriors repair log

Just a quick fix for a Shadow Warriors PCB I had since many years but never looked at:

Gameplay was fine but all the backgrounds GFX were scrambled and messy:

This is the part of circuit which generates the backgrounds, located on video board:

Luckily EPROMs and RAMs were socketed so I first tested the latter and found a bad one @3D (a Toshiba T5563 pin to pin compatible to a generic 6264) :

Replacing the bad chip was enough to clear the issue.