13 Aug
2009
13 Aug
'09
11:17 a.m.
----- Original Message -----
From: "Chuck Guzis" <cclist at sydex.com>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
Sent: Wednesday, August 12, 2009 10:44 PM
Subject: Re: Programming 68764s
On 12 Aug 2009 at 22:29, Randy Dawson wrote:
I seem to recall a technique where one (rather gently I believe) bakes
EPROMS in an oven to restore proper behavior. Perhaps someone else recalls
the details, as unfortunately I don't. I also don't recall whether this was
a fix for erase failures or not.
Later,
Charlie Carothers
--
You can email me at: csquared3 at tx dot rr dot com
go get yourself a 'germicidal lamp' at
the light bulb store. It works
in any florescent fixture...
Much cheaper that a commercial UV eraser
Mine's an old Logical Devices unit that I've owned for more than 20
years and has never had any problems "cooking" UVEPROMs, so I don't
think it's the eraser. I wonder if it's the algorithm/parameter
setup on my programmer. So I'm trying to think up an alternate
strategy to see if the things are really erased.
I should be able to read/blank-check at least half of these things by
calling them 2532s, shouldn't I?
What I'm wondering is if this batch isn't a bunch of NOS rejects.
Thanks,
Chuck