Programming 68764s

[CSquared]

----- 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:
>
>> 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
>
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
--
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