KONAMI RACING JAM RTC Error Help

LOLAS

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My friend has a racing jam 2 twin car that 1 of the pcb has the rtc error.Can i De-solder the working NVRAM chip from the working board and dump it to a new NVRAM chip and put it to the bad board?It will work like that ?If this work can i use M48T58-70PCI or only M48T58Y-70PC1 will work?
Anybody has the file for the NVRAM chip.
 
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i'm having the same problem with mine...can anyone burn a new one of these for me?
i'm happy to pay for the service
 
KONAMI RACING JAM 2 RTC Error Help

My friend tell me now that is a racing jam 2 that has this problem.
Do you mean Dallas DS1643 ? Mame has a dump of it? Is it works?
Where i can find the file for the nvram?
Thanks for trying to help all of you.
 
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