Dell Dimension 4700C Manuale di servizio - Pagina 8
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Opening the Computer Cover
Dell™ Dimension™ 4700C Service Manual
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
1.
Shut down the computer
through the Start menu.
2. Ensure that your computer and attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut
down your computer, turn them off now.
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 telecommunication lines from the computer.
4. Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to ground the system board.
5.
Remove the computer
stand, if it is attached.
CAUTION:
To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
NOTICE:
Ensure that there is sufficient space to support the open cover—at least 30 cm (1 ft) of desk top space.
6. Locate the two release buttons shown in the illustration. Then press the two release buttons as you lift the cover.
NOTICE:
Open the cover slowly to ensure that you do not damage any cables.
7. Raise the back of the cover, and pivot it toward the front of the computer.
NOTE:
Make sure that the computer is oriented with the cable security tab on top, as shown in the illustration.
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