Author Topic: Help with identifying connector and cable.  (Read 149 times)

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Offline Talesh

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Help with identifying connector and cable.
« on: December 08, 2017, 07:19:43 AM »
Hi guys,

For reference: I am incredibly new to electronics and bought a Hakko soldering iron for a minor project this year.


The attached photo is of a cable that connects two halves of a split keyboard I just bought. My hope was that this cable would have been 4 wires or something which I would have been able to desolder it to extend the cable length. But instead I find this 20 wire cable connecting both halves with the connector on the end.

So now I am thinking maybe this may be a standard type connector and a standard type of cable I may be able to find online instead of having to do a bunch of soldering with very tiny wires. Any thoughts on how to proceed? Maybe where to find that type of connector and a 20 strand cable in the 2 metre range?

Thanks
Talesh
 

Offline Awesome14

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Re: Help with identifying connector and cable.
« Reply #1 on: December 08, 2017, 05:27:31 PM »
I personally wouldn't even try to find such a cable. You might be able to find the connectors and a 20-conductor cable. But it wouldn't be fun.
Anything truly new begins as a thought.
 

Offline oldnewb

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Re: Help with identifying connector and cable.
« Reply #2 on: December 08, 2017, 06:42:39 PM »
What Awesome14 said. You could search high and low before finding out the exact make and model of connector used in your keyboard.  Furthermore, those sorts of connector families are often made for wire-to-board applications, only.  It's likely there is no version of the receptacle that can be easily fitted to the end of a cable, which you'd need for an extension.  You may get away with using crimp-on splices (see URL below), or there could be a lot of soldering practice in your future.

https://www.digikey.com/product-detail/en/te-connectivity-amp-connectors/321026/A27461-ND/299225
 

Offline Talesh

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Re: Help with identifying connector and cable.
« Reply #3 on: December 09, 2017, 02:21:51 AM »
OK assuming that I cannot find the connector, I'll have to cut/splice and extend the wires.

So how would I go about determining if the signals running through these wires can survive an extension to 2metres?
How do I determine what gauge wire I need if I were to extend them?
I'd like my final job to be neat so where would I find 20 strand cables (in Canada)?

Finally I own a cheap $25 multimeter and soldering system from a previous project which may be able to help me in this project.
 

Offline oldnewb

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Re: Help with identifying connector and cable.
« Reply #4 on: December 09, 2017, 04:24:28 PM »
Hard to say without knowing how the signals are being used.  Can you post a few photos of the insides of the keyboard halves?

With that many wires, it's likely to be carrying signals for a keyboard matrix.  A 2m extension would probably work, if you're up for a lot of tedious soldering.  I don't know the best places to shop in Canada.  Any of the usual outlets (Digi-Key, Mouser, etc.) are a good place to start.  Look for something like this 10', 24-conductor cable from Digi-Key:

https://www.digikey.com/product-detail/en/3m/3600B-24-100SF/MB24S-10-ND/2764950

(You only need 20 conductors, but it'll be a lot cheaper if you go with a more popular configuration.)
 


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