Cable replacement on Model M Industrial M-13

evoman

05 Jun 2024, 14:10

I have a IBM badged (made by Unicomp fro IBM) Industrial Model M (M-13) in the industrial grey case. When I put it into my computer locker at work a few years ago (I started using more compact keyboards) the casing on the cable near where it attaches to the case had started to fray. I just took it out of the locker to find that the casing on the cable has become quite brittle and pieces fell off as I took out the keyboard. So I am trying to figure out if anyone makes a replacement cable for this model, or if anyone can give me advice on how to replace the cable? This model has an attached cable that splits into the keyboard and mouse connectors at the end.

Thanks!

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wobbled

06 Jun 2024, 19:51

Unicomp have these cables, or at least they did a few years ago when i bought one from them. Send their support an email

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dcopellino

08 Jun 2024, 13:28

Yes, follow w's advice. I myself replaced my black m13 frayed cable with the corresponding curly unicomp's one, flawlessly. Only side note is that you'll have to replace the cable plug from AMP to the original internal one but it's very easy since internal cable colouring scheme is the same, so the pin out follows it accordingly, to put it simply.

evoman

10 Jun 2024, 12:59

Thanks for the advice. I emailed Unicomp to confirm they have the right cable available but they haven't responded, so I might need to give them a call.

For replacing the internal connector, how did you splice the original one onto the cable? (I am not sure what method I would use to connect the wires).

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dcopellino

10 Jun 2024, 23:46

evoman wrote:
10 Jun 2024, 12:59
Thanks for the advice. I emailed Unicomp to confirm they have the right cable available but they haven't responded, so I might need to give them a call.

For replacing the internal connector, how did you splice the original one onto the cable? (I am not sure what method I would use to connect the wires).
evoman wrote:
10 Jun 2024, 12:59
Thanks for the advice. I emailed Unicomp to confirm they have the right cable available but they haven't responded, so I might need to give them a call.

For replacing the internal connector, how did you splice the original one onto the cable? (I am not sure what method I would use to connect the wires).
I simply peeled the wires off, checked them up with my multimeter against the ps/2 internal female JST connector pinout (I surprisingly found that wire colours as I told you corresponded each other). Then I soldered them together at my best. Lastly, I covered the 'chubby' wire with some thermo shrinking gum. That's all. Both the keyboard and the track point work properly. Esthetically speaking i'm aware that I might have got something better.... but it works.
Let me know if unicomp will be answering. I can't wait to order some coloured keycaps for my next project.

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wobbled

11 Jun 2024, 14:40

I never had to do any of that when replacing my cable, i showed them a picture of the connector i needed and they had it in their warehouse, always worth asking if they have it first

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dcopellino

11 Jun 2024, 14:50

wobbled wrote:
11 Jun 2024, 14:40
I never had to do any of that when replacing my cable, i showed them a picture of the connector i needed and they had it in their warehouse, always worth asking if they have it first
Directly from unicomp ticket support system

Reply by
T. F.
»
7 months ago
Unfortunately, I do not think we have any cables compatible with the M13 models, much less Coiled and black. There is also the other point of the JST connectors varying in layout from card to card which would be of concern. You would have to get a similar cable, determine pinout, and match it to your cable contacts on your card.

Thank you,
T. F.

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wobbled

12 Jun 2024, 01:16

Interesting, I guess they sold out between now and 2017 when I emailed them about my replacement cable. I didn't think it was that long ago... I'm getting old lol

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