My BM66 backbox GI went dark. Has anyone had any luck troubleshooting backbox GI issues on a modern Stern (BM66, SWP, Aerosmith, GotG)?
Everything else works fine, and now that everything is combined onto a MPU board, things are a little trickier to diagnose. Software settings have the backbox brightness to 100%, and there is no test for backbox G.I. in the test menu that I can find.