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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 Before Working Inside Your Computer) before you 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 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.
   
   

1	subwoofer	2	subwoofer cable connector	3	connector on system board
4	captive screws (2)

8. Disconnect the subwoofer cable connector from the connector on the system board.
   
   

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