Did you try to simply make some factory reset once supposedly correct values (=from service manual) are setup?
Also can't "reddish" display be fixed just by picture settings from regular menu? Factory defaults are so ugly that it's easy to think of a failure
Try some values to be sure which one of both settings (panel OR front color) is really likely to change something about color (reddish, greenish, blueish etc maybe?), then cycle values of it. This can't be exact combination=ok and all other=red