Dell XPS L502X Service Manual page 4

4. Press and eject any installed cards from the Media Card Reader.
5. Disconnect your computer and all attached devices from their electrical outlets.
6. Disconnect all attached devices from your computer.
CAUTION:
computer.
7. Remove the battery (see
8. Turn the computer top-side up, open the display, and press the power button to ground the system board.
CAUTION:
of the computer. While you work, periodically touch an unpainted metal surface to dissipate static electricity, which could harm internal
components.
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To help prevent damage to the system board, remove the main battery (see
Removing the Battery).
Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back
UserManuals.info
Removing the Battery) before working inside the