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erasing/burning 27sf512 with enhanced willem burner

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erasing/burning 27sf512 with enhanced willem burner

Old 10-08-2005, 11:59 AM
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Default erasing/burning 27sf512 with enhanced willem burner

I was having trouble erasing my 27sf512 chips after burning them until i stubled accross some false information that led to my discovery of good information.

If i put a blank chip, never been burnt, in the burner and then erased, it worked fine, but if i programmed the chip i was unable to get them to erase. I found a thread on a camaro form to pull the safety jumper and set the eprom to W27C. This didn't work either, so on a hunch i reset the burner and just tried erasing with the jumper out and it worked.

So for those of you using enhanced buners with sst27sf512 chips: burn with safety jumper in, erase with safety jumper out.
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Old 10-15-2005, 11:54 PM
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Default Re: erasing/burning 27sf512 with enhanced willem burner

i've been having the same problem it keeps reading error. where is the safety jumper? it wont allow me to erase and re-write
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Old 10-16-2005, 05:40 PM
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Default Re: erasing/burning 27sf512 with enhanced willem burner



that button does wonders if clicked .

no but for real there is a few topics that explain it pretty good. just search for 27sf512.
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Old 10-17-2005, 08:07 PM
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Default Re: erasing/burning 27sf512 with enhanced willem burner

safety jumper is on the top between all the led's. Mine is yellow.
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