Dell Precision M90 Service Manual page 47

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Subwoofer
Dell Precision™ M90 Mobile Workstation Service Manual
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
begin working inside the computer.
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
2. Remove the optical drive (see
3. Remove the hinge cover (see
4. Remove the keyboard (see Keyboard).
5. Remove the display assembly (see
6. Remove the palm rest (see
7. Loosen the two captive screws that secure the subwoofer in place.
1 subwoofer 2 subwoofer cable connector
4 captive screws (2)
8. Disconnect the subwoofer cable connector from the connector on the system board.
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Computer.
Optical Drive).
Removing the Hinge Cover).
Removing the Display Assembly).
Removing the Palm Rest).
3 connector on system board
Before Working Inside Your Computer) before you