Game Hardware Q&A • Konami 573 RTC dead battery fix?

[ArcadeOtaku]

I can fix/program the RTC, with a M48T58Y-70PC1 (New, bought from Elfa Distrelec 3 years ago)
if it needed to be programmed like "Silent Scope2" or maybee no need of program
you have to desolder the old one and replace it with a new one.

Source: https://forum.arcadeotaku.com/viewtopic ... 31#p566431