30 Sep
2007
30 Sep
'07
12:11 p.m.
Date: Sun, 30 Sep 2007 17:05:09 +0100> From:
julesrichardsonuk at yahoo.co.uk> To: > Subject: EPROM deaths...> > > Is
there any kind of common failure mode for EPROMs? I've just had a couple > which
are refusing to erase - I'm getting repeating patterns of bits which > refuse to
clear (i.e. go high) under the eraser.> > Normally they seem to erase in ten
minutes, twenty at the most - these pair > have had 30 so far. Just wondering whether
to keep baking 'em or just toss > them because they're junk...> >
(I've managed to find what I did with my nice eraser - but it'll still only >
erase a couple of chips at once)> > cheers> > Jules> Hi
The most
common problem I've seen that
causes this is just poor contact with the
programmer.
Dwight
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