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NOTICE: To help prevent damage to the computer, perform the following steps before you begin working inside the computer. NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network device. 3. Disconnect any telephone or network cables from the computer. 4. Disconnect your computer and all attached devices from their electrical outlets. 5. Close the display and turn the computer upside down on a flat work surface. 6. Slide the battery-bay latch release on the bottom of the computer and remove the battery from the bay. 7. Turn the computer top-side up. Computer Orientation Screw Identification When you are removing and replacing components, print the screw identification chart as a tool to lay out and keep track of the screws. The chart provides the number of screws and their sizes. NOTICE: To help prevent damage to the system board, remove the main battery before working inside the computer. 1 battery-bay latch release 2 battery 1 front 2 left 3 back 4 right Optical Drive: (1 each) Hard Drive: (2 each) Modem: (1 each) Internal Card With Bluetooth® Wireless Technology: (1 each) Keyboard: (2 each) Display Assembly: (4 each) Display Bezel: (4 each, under rubber display bumpers) (4 each, shoulder type, under 2 screw covers and 2 rubber bumpers) Display Panel: (8 each) Palm Rest: (6 each – top side) (12 each – bottom side) Speakers: (4 total — 2 per speaker) USB Port Board: (1 each) Fans (2): (4 total — 2 per fan) System Board: (4 each) Hard Drive Bay: (4 each) ExpressCard Cage: (4 each) Battery Latch Assembly: (1 each) Back to Contents Page Back to Contents Page Internal Card With Bluetooth® Wireless Technology Dell™ Inspiron™ 9400 Service Manual 1. Follow the instructions in Before Working Inside Your Computer. 2. Remove the M2.5 x 8-mm screw and remove the card cover from the computer. 3. Pull the card out of the compartment so that you can disconnect the card from its cable and remove it from the computer. Back to Contents Page CAUTION: Before you begin the following procedure, see 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 Before Working Inside Your Computer) before working inside the computer. NOTE: If you ordered an internal card with Bluetooth wireless technology with your computer, the card is already installed. 1 card connector 2 internal card with Bluetooth wireless technology 3 card door 4 M2.5 x 8-mm screw Back to Contents Page ExpressCard Cage Dell™ Inspiron™ 9400 Service Manual 1. Follow the instructions in Before Working Inside Your Computer. 2. Remove the hard drive (see Removing the Hard Drive). 3. Remove the optical drive (see Optical Drive). 4. Remove the hinge cover (see Removing the Hinge Cover). 5. Remove the keyboard (see Keyboard). 6. Remove the display assembly (see Removing the Display Assembly). 7. Remove the palm rest (see Removing the Palm Rest). 8. Disconnect the ExpressCard connector from the system board. 9. Remove the four M2 x 3-mm screws that attach the ExpressCard cage to the top of the hard drive bay. Back to Contents Page CAUTION: Before you begin the following procedure, see 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 Before Working Inside Your Computer) before working inside the computer. 1 hard drive bay 2 ExpressCard cage 3 M2 x 3-mm screws (4) 4 ExpressCard connector Back to Contents Page Mini-Card Dell™ Inspiron™ 9400 Service Manual 1. Follow the procedures in Before Working Inside Your Computer. 2. Turn the computer upside down and loosen the captive screws from the Mini-Card cover. 3. Place your finger under the cover at the indentation, and lift the cover to remove it. 4. If a Mini-Card is not already installed, go to step 5. If you are replacing a Mini-Card, remove the existing card: a. Disconnect the antenna cables from the Mini-Card. b. Release the Mini-Card by pushing the metal securing clips toward the back of the computer until the card pops up slightly. c. Lift the Mini-Card out of its connector. CAUTION: Before you begin the following procedure, see the safety instructions in the Product Information Guide. CAUTION: Only products approved for use in your portable computer may be installed. 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 batte...