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Have you tried burning the JPN program rom to the same eprom you tried to burn the US rom to?

If it works, we can then rule out your programming setup and the chip.
 
Have you tried burning the JPN program rom to the same eprom you tried to burn the US rom to?

If it works, we can then rule out your programming setup and the chip.
Hmmm no i have not tried jpn rom. But will later on today.
 
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