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Subwoofer
Dell Precision™ M90 Mobile Workstation Service Manual
If you ordered a subwoofer with your computer, it is already installed. To remove and replace a subwoofer:
1.
Follow the instructions in
Before Working Inside Your Computer
.
2.
Remove the optical drive (see
Optical Drive
).
3.
Remove the hinge cover (see
Removing the Hinge Cover
).
4.
Remove the keyboard (see
Keyboard
).
5.
Remove the display assembly (see
Removing the Display Assembly
).
6.
Remove the palm rest (see
Removing the Palm Rest
).
7.
Loosen the two captive screws that secure the subwoofer in place.
8.
Disconnect the subwoofer cable connector from the connector on the system board.
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CAUTION:
Before you begin the following procedure, follow the safety instructions in the
Product Information Guide
.
NOTICE:
To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such
as the back panel) on the computer.
NOTICE:
To help prevent damage to the system board, you must remove the main battery (see
Before Working Inside Your Computer
) before you
begin working inside the computer.
1 subwoofer
2 subwoofer cable connector
3 connector on system board
4 captive screws (2)
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