T410 keyboard LED connector pin

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Hello, I am mounting a T410 motherboard into a PC case. Power on switch and power LED are located on the keyboard but I want to use power switch of PC case.

Based on this topic http://forum.thinkpads.com/viewtopic.php?t=117191 I tried to power up the T410 and it was successfull.

My question is: does anyone know which pin is used to power the LED? I don't have a T410 keyboard so I can't find it by myself. I don't want to try the pins on the turned on motherboard because of tiny connector pads... Is there anyone who can help me? Thank you.

// After intensive googling I finally found the answer! It seems that it's a PIN 23 according to schematics (http://laptopblue.vn/download/1669/leno ... atics.html, page 63).