Article View: sci.electronics
Article #11591Re: X-rays, aircraft and
From: Cyberman
Date: Wed, 11 Nov 1992 02:15
Date: Wed, 11 Nov 1992 02:15
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1288 bytes
Pyrdek@edinboro.edu entitled a message as 'X-rays, aircraft and frie',
on the 11-06-92 19:48 to All.
Py> What I am wondering is what is the probability that the x-ray
Py> unit(s) may have fried the chips or is it more likely that travelling
Py> in some aircraft hold (possibly unheated and/or unpressurized)
Py> caused these problems. Or is it more likely that the various jolts
Py> and bumps may have caused at least two (and quite possibly more)
Py> seperate failures at the same time?
Py> Care to venture an opinion?
Yes if the micro controller is an OTP and not a MASKED one
the XRAY devices may have erased some the EPROM bits. OTP
micro controller use a non windowed eprom so you can't
"erase" them. However you may be able to do it with XRAYS.
:)
Cyberman
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Path: arc1-ca.pugleaf.net!sparky!uunet!ogicse!emory!sol.ctr.columbia.edu!zaphod.mps.ohio-state.edu!ub!toz!cyberman From: cyberman@toz.buffalo.ny.us (Cyberman) Newsgroups: sci.electronics Subject: Re: X-rays, aircraft and Message-ID: <gate.uRy2TB1w165w@toz.buffalo.ny.us> Date: 11 Nov 92 02:15:05 GMT Article-I.D.: toz.gate.uRy2TB1w165w Lines: 23 X-Maildoor: WaflineMail 1.00r