Erase a 40-Pin AM27C400 Programmable EPROM With Ultraviolet Light for Upgrading the ROMs of Retro Computers Such as the Amiga 600 and 1200 (30-60 mins)

Hardware, Modification

Task: Erase a 40-Pin AM27C400 Programmable EPROM With Ultraviolet Light Needed: AM27C400 EPROM, UV light source, TL866 universal programmer Time: 30-60 minutes Introduction I have previously posted about burning 40-pin AM27C400 EPROM chips for upgrading the ROM of an Amiga 1200. Unfortunately, several of my EPROMs were not fully blank

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