Re: Grid 1537 ”Tempest” schematics

Ian Finder ian.finder at
Thu Aug 15 01:51:58 CDT 2019

I was under the impression that the internal hard drive on the 1537 is SCSI
and not IDE.
Careful, some of those pins have +12 power for the drive on them as well.

On Wed, Aug 14, 2019 at 8:49 PM Curt Vendel via cctalk <
cctalk at> wrote:

> Hi,
>   I’m doing some work for a friend who has one of these unicorns it’s
> apparently a super beefed up CIA use the laptop that wound up in Russia
> somehow and he got it shipped back here to the US
> The motherboard was modified it looks like the hard drive was on some kind
> of a tray going to a connector which is IDE compatible
> Someone had extremely poorly soldered on an IDE cable in place of the sled
> and over the years several of the pans of popped off and they’re not really
> making sense as to the solder points they’re supposed to go to.
> Complicating the matter is the paint outs are not just a direct staggered
> 40 Pin to Pin connection several of the through holes are not in use so
> just soldering on I had her and plug in the cable into it is not possible
> also the pens are staggered so that wouldn’t make it possible either.
> So to cut to the chase does anyone have the schematics or the motherboard
> pinouts for this connector so that I can do a proper soldering job and put
> on a clean working cable so that this laptop can vote from the IDE hard
> drive?

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