Author Topic: Keyboard Wiring help  (Read 240 times)

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Offline ethercy

  • Thread Starter
  • Posts: 4
Keyboard Wiring help
« on: Sat, 13 February 2021, 14:15:55 »
Hi everyone,

I have an old Phillips Mechanical Keyboard I have. Long story short the cable pins became detached and I forgot to take a picture. If anyone knows the correct pinout or how I can go about figuring it out, I'd really appreciate it.

Model: Philips SPK8401B
https://imgur.com/a/8QmMj1F




Offline Maledicted

  • Posts: 1552
  • Location: Wisconsin, United States
Re: Keyboard Wiring help
« Reply #1 on: Mon, 15 February 2021, 09:19:27 »
Hi everyone,

I have an old Phillips Mechanical Keyboard I have. Long story short the cable pins became detached and I forgot to take a picture. If anyone knows the correct pinout or how I can go about figuring it out, I'd really appreciate it.

Model: Philips SPK8401B
https://imgur.com/a/8QmMj1F

This might be more of a bump to get the attention of people who do this more often, but here's a picture of what colors each USB wire usually corresponds with:



It looks like yellow is sometimes Data + as well, but it may be a ground running back to the USB connector itself.

You could verify all of that with a multimeter or continuity tester. You may need to do the same on the PCB to try to identify at least the +5v and ground. If you find the controller (usually the biggest/longest IC on the PCB) and can find a schematic of it, you might be able to trace each pin on that female JST connector back to the controller to find the pinout. +5v and ground matter the most. You can guess on the rest and adjust until it works.

It would sure be a lot easier if someone with the same board just took theirs apart and got a quick picture though.