Some TP 365X / 365XD will have problems with the Keyboard Position Sensor Switch failing to properly actuate when the keyboard is lowered into normal usage position. (Cause: enter HIBERNATION mode)
Spacers should be affixed to the underside of the keyboard to ensure that the switch is depressed when keyboard is lowered. More than one spacer (incl. in FRU P/N 39H7105) can be affixed to overcome this problem.