Dell Latitude D631 (PP18L) Modem Removal and Installation

By on January 25, 2017 · 11:12 am
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In this Dell laptop tutorial we are going to show you how to install and replace the Modem Card on your Dell Latitude D631 (PP18L) laptop. These installation instructions have be made into 16 easy to follow printable steps. We have also create a video tutorial that shows you how to install your Dell Latitude D631 (PP18L) Modem Card.

Before you begin

Please take the time read the following safety guidelines when working on static sensitive electrical components.
Dell repair manual service precautions

Tools needed for this laptop repair

  • 1 x small phillips head screw driver
  • 1 x small plastic scribe
Latitude D631 Modem

Dell Laptop Replacement Parts Needed

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Latitude D631 Modem

Video tutorial repair manual



Installation and Removal Instructions
Dell Latitude D631 Modem Card

Slide the battery down and lift out of the laptop.

Step 1

  • Slide the battery latches over.
  • Slide the battery down and lift out of the laptop.
Slide the battery down and lift out of the laptop. Slide the battery latches over.
Unscrew the retaining screw and remove the door from the laptop

Step 2

  • Unscrew the retaining screw and remove the door from the laptop
Slide the hard drive out of the laptop.

Step 3

  • Remove the (2) 3mm x 3mm hard drive screws.
  • Slide the hard drive out of the laptop.
Slide the hard drive out of the laptop. Remove the (2) 3mm x 3mm hard drive screws.
Press in the optical drive latch to get it to eject.

Step 4

  • Remove the 2mm x 5mm optical drive latch locking screw.
  • Press in the optical drive latch to get it to eject.
  • Pull the latch to slide the optical drive out of the laptop.
Press in the optical drive latch to get it to eject. Pull the latch to slide the optical drive out of the laptop. Remove the 2mm x 5mm optical drive latch locking screw.
Remove the (2) 2.5mm x 5mm hinge screws on the back edge of the laptop.

Step 5

  • Remove the (2) 2.5mm x 5mm bottom hinge screws.
  • Remove the (2) 2.5mm x 5mm hinge screws on the back edge of the laptop.
Remove the (2) 2.5mm x 5mm hinge screws on the back edge of the laptop.Remove the (2) 2.5mm x 5mm bottom hinge screws.
Loosen the 2 non-removable PCI slot screws.

Step 6

  • Loosen the 2 non-removable PCI slot screws.
Unscrew the (7) 2.5mm x 8mm base screws.

Step 7

  • Unscrew the (7) 2.5mm x 8mm base screws.
Using a flat head screwdriver, pry up the power button cover using the slot on the right side.

Step 8

  • Turn the laptop over and open it as wide as possible, approximately 180 degrees.
  • Using a flat head screwdriver, pry up the power button cover using the slot on the right side.
  • Carefully unsnap the power button cover, starting from the right and working your way left.
Carefully lift the keyboard and turn it over to reveal the keyboard cable.

Step 9

  • Remove the (3) 2mm x 3mm screws.
  • Carefully lift the keyboard and turn it over to reveal the keyboard cable.
Unplug the keyboard cable by lifting the blue ribbon straight up.

Step 10

  • Unhook the keyboard cable retaining clip by pivoting the blue clip up.
  • Unplug the keyboard cable by lifting the blue ribbon straight up.
Unplug the keyboard cable by lifting the blue ribbon straight up. Unhook the keyboard cable retaining clip by pivoting the blue clip up.
Disconnect the WWAN antenna cables.

Step 11

  • Disconnect the WLAN antenna cables.
  • Disconnect the WWAN antenna cables.
Disconnect the WWAN antenna cables.Disconnect the WLAN antenna cables.
Loosen the antenna cables and LCD cable from the routing channels.

Step 12

  • Unplug the LCD cable.
  • Loosen the antenna cables and LCD cable from the routing channels.
  • Lift the LCD display assembly away from the laptop base.
Loosen the antenna cables and LCD cable from the routing channels. Lift the LCD display assembly away from the laptop base.
Unscrew the (3) 2.5mm x 8mm palm rest screws.

Step 13

  • Unscrew the (3) 2.5mm x 8mm palm rest screws.
Unplug the CMOS battery.

Step 14

  • Unplug the CMOS battery.
Lift the palm rest from the base.

Step 15

  • Unplug the palm rest. The cable is located under the left edge of the palm rest.
  • Lift the palm rest from the base.
Unplug the modem cable.

Step 16

  • Unscrew the 2mm x 3mm modem screw.
  • Unplug the modem cable.
  • Unplug the modem from the motherboard.
Unplug the modem cable. Unplug the modem from the motherboard.
Latitude D631 Modem

Dell Laptop Replacement Parts Needed

H9379 Image
Eligible for $5.00 1st Class Shipping.
In Stock
DIY Discount - Parts-People.com offers 5% off to all DO-IT-YOURSELFERS!
Use this coupon code to save 5% off these parts
DIYM514
Latitude D631 Modem

Topics: Dell Latitude Repair Manuals Dell Laptop Repair Dell Repair Manuals Latitude D631 Modem

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