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Konami evil night hardware error
- Thread starter drewscruis
- Start date
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drewscruis
Well-known member
Programming the chip fixed the issue, board boots.
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runawayabc123
Well-known member
Programming the chip fixed the issue, board boots.
Thanks for the update.
I guess I know what I need to do for mine which also is 810 ub a02
So I missed one important note from that Konami m2 Mame driver, "The important part is that the data in the EEPROM should be the same as the NVRAM, but the EEPROM data is byte-swapped! If the two don't match, the check on 7K or the NVRAM will fail and the PCB will reboot forever." We can now confirm that the m2 is not one of those games that auto corrects the timekeeper. Safe to say that 7k check failing would display that "Hardware Error" message.
EDIT: Partially correct info I wrote there.
EDIT: Partially correct info I wrote there.
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drewscruis
Well-known member
I programmed a new rtc with the file. So it was the rtc.
runawayabc123
Well-known member
The old post (which I have saved on my old computer somewhere) from the dead forum on how to repair Evil Night, was that holding down the test switch would populate the data on the RTC chip.
We have found here, that that likely is NOT the case. (At least with this revision, which is the same revision as both of my dead Evil Nights.)
With any luck, that is my problem. I'll have to get a burner or buy a programmed chip.
Any suggestions on a burner for this RTC chip?
We have found here, that that likely is NOT the case. (At least with this revision, which is the same revision as both of my dead Evil Nights.)
With any luck, that is my problem. I'll have to get a burner or buy a programmed chip.
Any suggestions on a burner for this RTC chip?
its also possible the chip on board that stores the info to write to the RTC is corrupted or dead. Some M2's use that ROM to rewrite the RTC.
The data is also on the game disc in hex. You can search out the code on the front of the disc in a hex editor and find that info. Changing that is how you can disc swap.
It shows up in hex as year (1998) game code (GN810EAA for my board). If you switched GN810EAA for Battle Tryst on disc you'd just change 810EAA for the Battle Tryst codes. Rewrite RTC with test on boot and it'll convert the board from Evil Night to Battle Tryst.
Even when disc swapping, you need to hold the test switch down to rewrite the RTC chip with other data preventing the game from booting, so it's quite likely the RTC is written to from two sources (disc and rom)
The data is also on the game disc in hex. You can search out the code on the front of the disc in a hex editor and find that info. Changing that is how you can disc swap.
It shows up in hex as year (1998) game code (GN810EAA for my board). If you switched GN810EAA for Battle Tryst on disc you'd just change 810EAA for the Battle Tryst codes. Rewrite RTC with test on boot and it'll convert the board from Evil Night to Battle Tryst.
Even when disc swapping, you need to hold the test switch down to rewrite the RTC chip with other data preventing the game from booting, so it's quite likely the RTC is written to from two sources (disc and rom)
