XL/XE Keyboard ribbon socket - replacement?

[Overange]

1 hour ago, aeberbach said:

Got a pretty nice 800XL but the keyboard (two-terminal mechanical switches) connector is getting a bit dodgy. I have the headers to fix it but thought I would look for the more ready-made solution. Here's what I found at Mouser in AUD$. If Mouser has this stuff then Digikey and Element14/Farnell should have it too but possibly not option 2, the Samtec cable is old.

 

Option 1 - soldering and crimping

 

24-way receptacle $1.35 (qty 10)

https://au.mouser.com/ProductDetail/Molex/50-57-9024?qs=naUSJSqnqcI6Oi9ubyKqMw%3D%3D

crimp terminals $1.10 (qty 500)

https://au.mouser.com/ProductDetail/Molex/70058-4086?qs=fRFlKTDPPdHgCukSqCgVjQ%3D%3D

24-way header row $2.09 (qty 10)

https://au.mouser.com/ProductDetail/Molex/22-28-4245?qs=k9kYHbov5vWtCxwbHVc%2BCw%3D%3D

 

Cable is your option... ribbon cable will usually not solder well because the insulation melts away too easily. If you have the right crimper (Engineer PA-24 is one) this will work. I would probably do 30 AWG Kynar wire because it is easy to strip, wrap and then solder on the pins and then to gather into a neat twisted and/or sheathed round cable. Kynar insulation won't melt, great stuff.

 

Option 2 - soldering but no crimping

 

24-way single row 2.54mm pitch plug attached to 203.2mm length 2.54mm pitch cable $17.62
IDMS-24-S-08.00-ST4
https://au.mouser.com/ProductDetail/Samtec/IDMS-24-S-08.00-ST4?qs=PB6%2FjmICvI0%2B2Sm2ChlF%2BA%3D%3D
https://au.mouser.com/datasheet/2/527/idmd-2508302.pdf

 

Will this cable solder well? Don't know. Also the length of the pins on the connector is unknown, it isn't specified on the brief datasheet but is probably long enough for the socket.

 

24-way single row through hole socket $4.85
SSW-124-01-T-S
https://au.mouser.com/ProductDetail/Samtec/SSW-124-01-T-S?qs=iT52DjcXudvCUishYlzKnw%3D%3D

 

I have just got these made up.

 

It plugs straight into the PCB keyboard connector, all you have to do is solder in a 24 way ribbon from your keyboard to this PCB and plug it into the Keyboard connector.

 

This way you do not need to desolder the keyboard connector.

 

 

I also have a supply of the keyboard connectors aswell.

 

 

 

 

 

Edited March 11 by Overange

[aeberbach]

Nice job on those cards! But I finally bought the Hakko desoldering gun after my cheap one gave up a couple of years ago... I'm kind of looking forward to it. As well as making all my chips socketed 😀

[+skr]

On 3/11/2024 at 1:52 AM, Overange said:

 

I also have a supply of the keyboard connectors aswell.

Do I understand correctly that you have them ready physically and would sell them? I´m in urgent need of at least two, but actually would like five or so.

[Overange]

46 minutes ago, skr said:

Do I understand correctly that you have them ready physically and would sell them? I´m in urgent need of at least two, but actually would like five or so.

I can do that for you, DM me to discuss this  

[Beeblebrox]

@Overange as an aside I would love to see an 800 connector version. I have several Stackpole, hi-tek and mitsumi keyboard wires/ribbon connectors which have or are failed/failing. (Very prone to breaking off or disconnecting from the connector terminals or the keyboard's pcb itself).

Edited March 14 by Beeblebrox

[Overange]

34 minutes ago, Beeblebrox said:

@Overange as an aside I would love to see an 800 connector version. I have several Stackpole, hi-tek and mitsumi keyboard wires/ribbon connectors which have or are failed/failing. (Very prone to breaking off or disconnecting from the connector terminals or the keyboard's pcb itself).

Send me some photos and I will see what i can do