User:Hamish
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:
- Excerpt from x230 schematic, showing the keyboard ID pins:
- My x230, showing the keyboard idpin monitoring I added:
and showing the connection to the oscilloscope 
- Finally, found evidence of keyboard over-current, a small burn hole:
