If you know what version you have, you can reprogram a bit-rotting eprom with the same code again, just to refresh the parts that have faded (and save erasing the whole thing first) On 01/04/2013 03:28, Jose Luiz Martins wrote:
Uauuuu!!!!!!!!!!!!!!!!!!!!!!!!! I was writing something like this to flippers when received your email!
I'm facing exactly SAME problem with many Taito boards.
Some 2716 and 2516 are even testing as blank!
I did some research and the EPROM live time is guaranteed for about 10 years, but many of my boards has between 25 and 30 years old.
Called one friend today, asked him to test some boards and the result is the same problem.
I think we should consider some plan against this suicide EPROM behavior.
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