[Techtoolslist] What's happening with old 2716/2732

Fri Nov 25 15:26:59 EST 2022

I don't know why I can't send emails to techtoolslist at flippers.com, I'm
sorry to hijack this email.

I WTB a filter board for a Data I/O 29B or one 29B Unit - Just the unit.

Thanks!

JL

On Tue, Oct 25, 2022 at 8:18 PM Rodger Boots <rlboots2 at gmail.com> wrote:

> People stayed away from the cameraman when he was working.
>
> Was looking at a site that sells lightbulbs and the DID have some
> flashtubes listed as UV flashtubes.
>
> On Tue, Oct 25, 2022 at 5:53 PM Dave McGuire <
> mcguire at mcguirescientificservices.com> wrote:
>
> >
> >    I'd bet they were special flashtubes, and I'd further bet that there
> > was something else going on with those 2716s.  That much UV would've
> > also rendered any people nearby at least partially blind, and that'd
> > never have made it out into the consumer camera world.
> >
> >             -Dave
> >
> > On 10/25/22 18:48, Rodger Boots wrote:
> > > My job, at the time, was with Rockwell Collins Radio which was showing
> > off
> > > their WXR700 weather radar (used by Boeing in their large jet planes.
> > The
> > > company photographer took the promo photos then the unit was set up for
> > the
> > > demonstration.  It was dead as a doornail.  All 10 2716 EPROMS were
> > > erased.  They reloaded the software and everything ended up working.
> > >
> > > We didn't have them, but there were manufactures of EPROM erasers that
> > used
> > > flashtubes that they claimed could erase a batch in about 5 seconds.
> > They
> > > may have been special flashtubes, I don't know for sure.
> > >
> > > On Tue, Oct 25, 2022 at 2:06 PM Dave McGuire <
> > > mcguire at mcguirescientificservices.com> wrote:
> > >
> > >>
> > >>     Same here.  Xenon flash tubes don't produce much energy at the
> > ~250nm
> > >> wavelength required for EPROM erasure; their emission spectrum
> typically
> > >> falls off at about 350-400nm.
> > >>
> > >>     They'll crash if photographed while running, sure, but that's due
> to
> > >> all of those transistors' junctions acting like photodiodes for a few
> > >> milliseconds.  But no erasure will occur.
> > >>
> > >>                -Dave
> > >>
> > >> On 10/25/22 15:01, Andrew Welburn wrote:
> > >>> I have photographed games running on my bench with the flash on and
> > >> exposed windows plenty of times. Older games can freak out and
> > crash/reset
> > >> but there’s never any long term damage. Nintendo weren’t stupid,
> > uncovered
> > >> windows are not a great issue unless you have the exact wavelength of
> > light
> > >> for the needed exposure period at the right strength. The reality is
> in
> > >> common use you are unlikely to encounter that set of variables lining
> > up to
> > >> cause damage.
> > >>>
> > >>> Andrew Welburn (mobile)
> > >>>
> > >>>> On Oct 25, 2022, at 9:53 AM, John Robertson via Techtoolslist <
> > >> techtoolslist at flippers.com> wrote:
> > >>>>
> > >>>> On 2022/10/24 8:41 p.m., Rodger Boots wrote:
> > >>>>> I'm more surprised more Nintendo games haven't had this problem.
> All
> > >> it
> > >>>>> takes is a lack of window covers and an old-fashioned flash camera.
> > >>>>
> > >>>> That's interesting - if a strobe tube (like used in a camera flash
> can
> > >> actually erase the older EPROMs...I'll have to test that out today. I
> > have
> > >> these pistols and rifles that use focused strobe tubes to illuminate
> CDS
> > >> cells on their targets for a large scale shooting gallery I own on a
> > local
> > >> midway (Pacific National Exhibition - Vancouver, BC). So it is an easy
> > >> thing to fire up - so to speak!
> > >>>>
> > >>>> John :-#)#
> > >>>>
> > >>>>>
> > >>>>>> On Sat, Oct 22, 2022, 8:56 PM Jose Luiz Martins <
> > >> joseluizmartins at gmail.com>
> > >>>>>> wrote:
> > >>>>>>
> > >>>>>> Hi folks
> > >>>>>>
> > >>>>>>
> > >>>>>> Got some old 1980's Taito boards to fix and surprise! All 2716 are
> > >> blank!
> > >>>>>> This happened with about 5 boards and more than 40 ICs most of
> them
> > >> are
> > >>>>>> 2716 but some 2732 too.
> > >>>>>>
> > >>>>>> Do you guys is experiencing something like this?
> > >>>>>>
> > >>>>>>
> > >>>>>> Thanks!
> > >>>>>>
> > >>>>>> JL
> > >>>>
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> > >>
> > >> --
> > >> Dave McGuire
> > >> McGuire Scientific Services, LLC
> > >> New Kensington, PA
> > >>
> > >> _______________________________________________
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> > >>
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> > --
> > Dave McGuire
> > McGuire Scientific Services, LLC
> > New Kensington, PA
> >
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> >
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