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Checking keyboard compatibility

work in progress of my checks on the classic keyboard compatibility with xx30 motherboards.

  • Close up of my x230, zoomed on the keyboard: X230 mb cn17.jpg
  • Excerpt from x230 schematic, showing the keyboard ID pins: X230 kbidpins.png
  • My x230, showing the keyboard idpin monitoring I added: X230 monitor idpins.jpg and showing the connection to the oscilloscope X230 idpins osc rig.jpg
  • Finally, found evidence of keyboard over-current, a small burn hole: X220 keyboard burn.jpg