Spy Hunter Wonky Text

Scucci

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I'm working on a Spy Hunter (UR) that is having issues with some text. Some letters don't show up on the screen correctly. In the attached picture everything in the "40" row, and ONLY the "40" row, is effected. It appears to be a chip that's failing as adjusting the 5V line effects that happens to the text. Sometimes it's completely gone, sometimes it's partially correct, sometimes it's smooshed up with the other text.

What section handles that text? I pulled the AlphaNum ROM and verified it was good (data wise).

Looking for a decent starting point to start digging in. Thank you, in advance.
 

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