Dell Inspiron 1520 Owner's Manual page 155

NOTICE:
When you disconnect a cable, pull on its connector or on its strain-relief
loop, not on the cable itself. Some cables have a connector with locking tabs; if you
are disconnecting this type of cable, press in on the locking tabs before you
disconnect the cable. As you pull connectors apart, keep them evenly aligned to
avoid bending any connector pins. Also, before you connect a cable, ensure that
both connectors are correctly oriented and aligned.
NOTICE:
To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface (such as a
connector on the back of the computer).
NOTICE:
To help prevent damage to the computer, perform the following steps
before you begin working inside the computer.
1 Ensure that the work surface is flat and clean to prevent the computer
cover from being scratched.
2 Turn off your computer (see "Turning Off Your Computer" on page 154).
NOTICE:
To disconnect a network cable, first unplug the cable from your computer,
and then unplug it from the network wall jack.
3 Disconnect any telephone or network cables from the computer.
4 Disconnect your computer and all attached devices from their electrical
outlets.
NOTICE:
To help prevent damage to the system board, you must remove the battery
from the battery bay before you service the computer.
NOTE:
To avoid damage to the computer, use only the battery designed for this
particular Dell computer. Do not use batteries designed for other Dell computers.
5 Turn the computer over.
6 Slide and click the battery release latches.
7 Slide the battery out of the battery bay.
Adding and Replacing Parts
155