Dell Inspiron 20 3000 Series, Service Manual

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Before working inside your
computer
NOTE: The images in this document may differ from your computer
depending on the configuration you ordered.
Before you begin
1 Save and close all open files and exit all open applications.
2 Shut down your computer.
The shut-down instruction varies depending on the operating system installed on
your computer.
– Windows 10: Click or tap Start → Power → Shut down .
– Windows 8.1: On the Start screen, click or tap the power icon
→
Shut
down .
– Windows 7: Click or tap Start → Shut down .
NOTE: If you are using a different operating system, see the
documentation of your operating system for shut-down instructions.
3 Disconnect your computer and all attached devices from their electrical outlets.
4 Disconnect all cables such as telephone cables, network cables, and so on, from
your computer.
5 Disconnect all attached devices and peripherals, such as keyboard, mouse,
monitor, and so on, from your computer.
6 Remove any media card and optical disc from your computer, if applicable.
7 After the computer is unplugged, press and hold the power button for 5 seconds
to ground the system board.
CAUTION: Place the computer on a flat, soft, and clean surface to
avoid scratches on the display.
8 Place the computer face down.
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