Anyone have a reason for why identical chips written from original dumps will not allow the machine to boot?
I have the same issue. I can program my game eproms all day long and they function as expected. I program a clear/set chip and it will not work. I read/save the bin file from my personal library of eproms, I write it on the same type of eprom, it either fails or will not work.
I have sent my eproms to a buddy and he can write them and use them with no problems?
I blame it on my Wellon eprom programmer. It might be the software that came with the programmer? It might be the operating system I use on my computer? It might be that your eproms are not compatible with your programmer? It's a mystery to me...
When I get some time to play with mine I am going to upgrade my operating system. I am using a fresh version Windows XP that has never been on the internet. I need to upgrade it to either SP2 or SP3? [SP = service pack]
The Wellon web site has all the previous versions of their software for my programmer. If the operating system doesn't help maybe there is a conflict with the new/current programmer software and my computer or eproms?
I have some eproms coming of a different speed rating than what I have. I have my doubts that will help in my situation, the difference is -100F1 and -100XF1 eproms. BTw my problem is also with the m27V160 eproms...
I'll say it again,
it is a mystery to me!!!My buddy is using the cheapest programmer with an adapter to fit 42 pin eproms. I bought a more expensive programmer that did not need any adapter for 42 pin eproms. Maybe sometimes more expensive isn't better...