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Modem

Dell Precision™ M90 Mobile Workstation Service Manual

  Removing the Modem

  Replacing the Modem

Removing the Modem

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. Follow the instructions in Before Working Inside Your Computer.
   
   
2. Turn the computer upside-down, loosen the two captive screws on the modem cover, and remove the cover from the computer.
   
   

3. Remove the M2 x 3-mm screw that attaches the modem to the system board.
   
   
4. Pull up on the pull-tab to disconnect the modem from the connector on the system board.
   
   

1	system board connector	2	M2 x 3-mm screw	3	pull-tab
4	modem	5	modem cable

NOTICE: Do not disconnect the modem cable from the system board.

5. Disconnect the modem cable from the modem.
   
   

Replacing the Modem

1. Connect the modem cable to the modem.
   
   

NOTICE: Ensure that the modem cable is routed correctly when you replace the modem.

2. Connect the modem to the system board.
   
   

Align the connector on the bottom of the modem with the modem connector on the system board, and press down on the right side of the modem.

3. Replace the M2 x 3-mm screw.
   
   

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