Re: SX-64 keyboard cable

Example of a decent replacement:

http://www.doppleganger.org/sx64kbcable1.jpg
http://www.doppleganger.org/sx64kbcable2.jpg

a7yvm109gf5d1@xxxxxxxxxxx wrote:

Well I got home and popped the SX out of the closet to take a look at
the keyboard. OK, so there's no place for the screws, so that's what I
remembered. That's why it won't work with printer-style cables, unless
you pop the hoods off and let the screws fall off into the crack
between the hardwood floor and the baseboard heater.

The SX-64's opening is only 45mm (1.8 inches, or the length of my
flaccid manhood) wide, that's narrower than the standard issue d-sub
connector. I tried jamming it in there different ways. It just won't
go in. Maybe everyone else in the universe has a SX64 with a normal
size opening.

http://dfpresource.org/sx_64_db25.jpg

(Ah, what a photograph I am, eh? Notice the razor-sharp focus as my
hands shake from years of alcohol abuse, and no, there will be no
pictures with my manhood for reference.)

Simply put, it won't fit. I think I misremembered earlier; I had
plugged a SX keyboard to a 128D, that works fine with a printer cable
with the hoods popped off, since the 128D has a "open air" keyboard
connector. I think that's what I did for a while with my 128D built
from junk, until my real 128D keyboard came in a year late after
dealing with some punk on eBay.

So here's how I'd start the SX keyboard cable:

This style of connector HMP25H-ND (Digikey part number) and a AE25G-5-
ND ribbon cable should work for the keyboard end, but I can't find a
narrow-style crimp connector right now... This is by no means a
guarantee that this monkey will even fit into the keyboard, I have my
doubts about it. The opening is stylized, and I suspect there will be
some interference so the exact part number is TBD. My SX cable for
example, has a thinner wall around the pins than a regular plastic
connector.

So, since it's so simple, anyone have a part number for the narrow-
style crimp connector? Or solder version too. It's very simple to
crimp connectors, strip ribbon cable, cut off 25 pieces of heat
shrink, solder the mess together, shrink the tubing *and* have a
system to remove the connector from the SX without stressing the
connections. (Yanking a connector out by the cable itself is a sure
way to failure.) Gotta find the part number for the strain-relief and
a good pull-tab too.

Or just order two of the "big" IDC connectors, and cut off the
offending bits and hope it doesn't mess up the connector too much so
the IDC action still occurs properly. Also, did you see that the
ribbon cable can come in 26 or 28AWG? How do you know which to use for
the connector, if it's not specified in the data ***? Guess?
Fantastic.

Something for the non-electronics oriented person to do in his/her
living room, where everyone keeps a wire-stripper, hacksaw, vice,
soldering iron, heat-shrink tubing, a heat gun and some solder.

Simple, my ass. I'll go take a poop now and I'll finish the design
between sphincter pulses. Yeah I need more fiber. I've got a AL250
stuck back there too I think. That's why I'm pooping purple these days.

.

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