21 removing the power-adapter port, 22 replacing the power-adapter port, 23 removing the coin-cell battery – Dell Inspiron M421R (Late 2012) User Manual

Page 5: 24 replacing the coin-cell battery, 25 removing the fan, 26 replacing the fan, 27 removing the speakers, 28 replacing the speakers, 29 removing the display assembly, 30 replacing the display assembly