Dell Inspiron 15-7558, 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 Start → Power → Shut down .
– Windows 8.1: On the Start screen, Click the power icon
→
Shut down .
– Windows 7: Click 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 and network cables, from your
computer.
5 Disconnect all attached devices and peripherals, such as keyboard, mouse, and
monitor, from your computer.
6 Remove any media card and optical disc from your computer, if applicable.
7 Close the display and turn the computer over.
Safety instructions
Use the following safety guidelines to protect your computer from potential damage
and ensure your personal safety.
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