Removing The Usb Port Board; Replacing The Usb Port Board - Dell Precision M90 Service Manual

Mobile workstation
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  USB Port Board
Dell Precision™ M90 Mobile Workstation Service Manual
  Removing the USB Port Board
  Replacing the USB Port Board
 Removing the USB Port Board
 
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, remove the main battery (see
computer.
 
1. Follow the instructions in
Before Working Inside Your
 
2. Remove the hinge cover (see
 
3. Remove the keyboard (see Keyboard).
 
4. Remove the display assembly (see
 
5. Remove the palm rest (see
 
6. Disconnect the USB-port-board cable connector from the system board.
 
7. Remove the M2.5 x 5-mm screw, and lift the board out of the computer.
1
USB port board
4
USB-port-board cable
7
pin
 Replacing the USB Port Board
 
1. Insert the notch on the USB port board under the small tab on the computer base and the other side of the board over the pin.
 
2. Replace the M2.5 x 5-mm screw.
 
Computer.
Removing the Hinge
Cover).
Removing the Display
Assembly).
Removing the Palm
Rest).
2
M2.5 x 5-mm screw
5
system board connector
 
 
Before Working Inside Your
3
notch
6
tab
 
 
Computer) before working inside the

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