So originally posted this in the wrong spot but have made a little progress so will repost. I recently picked up a Mars god of war with some display issues.

Long story short:

P2/P4 display slots will cook the UDN6118 chips if a display is plugged in. If there is a display plugged into either P2/P4 slots...P1/P3 & Ball/Credit display jumble completely.

After trial and error (cooking all 4 display's UDN6118 chips... oops) I have now replaced all the display drivers but obviously don't want to plug anything into P2/P4 until I solve for the issue... If something is plugged into P1 it displays missing some segments... I attached a picture of what P1 looks like now (looks the same if plugged into P3)... It is getting data as I can make out the score less the missing digits as game plays... Any thoughts?

.. Yes power was off at all times when display connectors was removed ..

Thanks in advance!

image1 (resized).JPG