I've had a lithium in my SH and lately it has seemed to revert to the (retarded) default of 2 coins per credit whenever I turn the game off, and my high score table was messed up (the scores were low but whenever I got the high score, it would report that my ranking was very low). I assumed the battery was low so I figured I'd upgrade to nvram.
I tried a DS1220AB-200 and could not get the game to boot, regardless of raising the +5v supply. I tried a simtek (despite knowing that Mark advises against these on MCR games) and still got memory loss on shutdown. I just got some M48Z02-70PC1's so I tried 2 of them, and same deal - memory loss on shutdown.
I reflowed the solder on the 5G socket just in case there was a bad solder joint. No help.
Any clue what might be going on? Part of me wonders if the M48Z02's I got were old and the internal batteries were dead, but that seems unlikely given that I've tried 2 of them, and in light of everything else I mentioned.
I tried a DS1220AB-200 and could not get the game to boot, regardless of raising the +5v supply. I tried a simtek (despite knowing that Mark advises against these on MCR games) and still got memory loss on shutdown. I just got some M48Z02-70PC1's so I tried 2 of them, and same deal - memory loss on shutdown.
I reflowed the solder on the 5G socket just in case there was a bad solder joint. No help.
Any clue what might be going on? Part of me wonders if the M48Z02's I got were old and the internal batteries were dead, but that seems unlikely given that I've tried 2 of them, and in light of everything else I mentioned.


