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Password protection on an old EPROM
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<blockquote data-quote="marantz123" data-source="post: 1079936" data-attributes="member: 16849"><p>I repaired and programmed cash registers (Olivetti/Uniwell range) many moons ago and regularly wiped and reprogrammed eproms (the SGS Thomson 27C128s /256s) for these machines over a few years and recall the software program running on the terminal had a comprehensive menu.. Very possibly password protection was a feature on there. We never used it though. Get hold of any cash register repair business, their techs will advise if password protection is on there and if theres a way around it. These machines are still in use today, so you will have some luck. I think it may be a user-programmed password though. Try scratching around for some documentation from SGS Thomson, might just find something.</p><p>Keep that little glass window covered (with a label/sticker) Exposure to UV for long enough will erase the data on there if left uncovered.</p></blockquote><p></p>
[QUOTE="marantz123, post: 1079936, member: 16849"] I repaired and programmed cash registers (Olivetti/Uniwell range) many moons ago and regularly wiped and reprogrammed eproms (the SGS Thomson 27C128s /256s) for these machines over a few years and recall the software program running on the terminal had a comprehensive menu.. Very possibly password protection was a feature on there. We never used it though. Get hold of any cash register repair business, their techs will advise if password protection is on there and if theres a way around it. These machines are still in use today, so you will have some luck. I think it may be a user-programmed password though. Try scratching around for some documentation from SGS Thomson, might just find something. Keep that little glass window covered (with a label/sticker) Exposure to UV for long enough will erase the data on there if left uncovered. [/QUOTE]
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Password protection on an old EPROM
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