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Hi, I have four eproms NMC27CP128Q250. I tried to write them all with my VP-280 but without success. I always erase them first (blank check OK) and use the AC adapter.The error I get is this: >>.Program...... >>Device Address:000100H Device Data:E1H Buffer Address:000100H Buffer Data:E9H >>Program fail! >> 1,03Sec I appreciate any help, thanks.
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