Bad IBM SDL cable. Anyone have a wiring diagram?

snuci · 23 Apr 2016, 16:48

I purchased a lot of four keyboards that were all "bad". Two were IBM XT Model Fs and worked perfectly on an IBM XT (and not AT as expected) and one was an IBM rubber dome Model M that works fine with no issues. 3 out of 4 ain't bad. The last is a silver label Model M that has a bad SDL cable. I can live with that!

Does anyone have a wiring diagram for an SDL to 5 pin din cable so I can check for continuity issues? I should probably just buy a new cable but those original black curly cables are so nice, I want to try to fix it (if possible).

Off topic: This is my first IBM Model M rubber dome after having several buckling spring varieties and using an SSK at work as my daily driver. It's actually not too bad but I would certainly be disappointed if I got a rubber dome instead of an expected buckling spring model. They still don't compare in my mind but it's not terrible for a rubber dome.

Thanks.

y11971alex · 23 Apr 2016, 19:30

Spoiler:

Might be relevant.

snuci · 23 Apr 2016, 22:29

This is good. I just need the SDL side and make sure they line up.

Thanks.

Redmaus · 23 Apr 2016, 22:33

Is there anything here that can help?

http://www.kbdbabel.org/conn/index.html

snuci · 23 Apr 2016, 22:38

Redmaus wrote: Is there anything here that can help?

http://www.kbdbabel.org/conn/index.html

Thanks Redmaus. Found the SDL end here:

Great site. I could use that for a few other projects.

Thank you.

Redmaus · 23 Apr 2016, 22:43

It is from Soarer's thread on GH got a lot of good info I might even be converting my videowriter soon with it.

Good luck with your SDL cable.

orihalcon · 28 Apr 2016, 11:15

Not sure if these would help you if it turns out the SDL end is bad: http://m.ebay.com/itm/2x-Original-SDL-6 ... nav=SEARCH

Can do $10 shipped for both if interested, just pm me.

zuglufttier · 28 Apr 2016, 15:27

This may be of interest, too: workshop-f7/xt-at-ps2-terminal-to-usb-c ... ml#p298197

snuci · 28 Apr 2016, 16:48

zuglufttier wrote: This may be of interest, too: workshop-f7/xt-at-ps2-terminal-to-usb-c ... ml#p298197

I think I may spring for an SDL to USB cable to replace it. I use an SSK at work with a PS/2 to USB dongle connected to a Surface docking station. Sometimes the keyboard doesn't work when I re-dock so I'm hoping an SDL to USB cable might work better. Anyone know of a decent priced complete SDL to USB cable?

(P.S. I will still try to fix my cable. It's an original black curly one and I love those early cables).

zuglufttier · 28 Apr 2016, 16:59

I desoldered the SDL connector in my SSK and popped in a Pro Micro: workshop-f7/how-to-use-a-pro-micro-as-a ... t8448.html

Basically, you have to solder four wires from thekeyboard controller on that picture to the Pro Micro. After that, you may use some nice, thin and short USB cable.

Or you contact orihalcon for some ready to work SDL to USB cable