If you're referring to the shot of the "CHECKSUM $B8FF" - I'm pretty sure that's just displaying the version of the ROM the table is running. (It's a few revisions behind for what it's worth - current version is 5.00)

The "CHUCK E" portion explains the shooter lane wear though if that's what I think it means.

Edit - wait. Can anyone explain why it says that? I was just assuming there was some dip switch setting that would make it say that, though I now have no idea why I would think that. Mine says USA, and I assume that's controlled by the dip switch settings. But the manual that I have doesn't list any Chuck E (Cheese?) setting at all.

edit 2 - found other threads mentioning a Chuck E Cheese dip switch setting. Nevermind.

He said as much in the OP.

I mean - logic says it was when the shooter lane looks like that with no flipper button wear, but he's not trying to hide that fact at all.