Dell Inspiron 7500 - Manual (Page 119)

This procedure assumes that you have removed the keyboard . To remove the thermal shield, perform the following steps:
1. Remove the right hinge cover.
15-Inch XGA and 15-Inch SXGA+ LCD Panels
a. Open the computer to 170 degrees, supporting the display assembly.
b. From the outside edge of the unit, carefully insert a flat-blade screwdriver or scribe into the space on the inside of the hinge cover.
c. Bring the tool against the front wall of the hinge cover and pull toward the keyboard to loosen the plastic snaps at the back of the hinge
cover.
d. Move the tool to the inside top of the hinge cover and lift the hinge cover off. If the hinge covers are tight, use a plastic wedge or scribe
to loosen and pop them off .
15.4-Inch SXGA LCD Panel
Remove the screw cover and the screw. Lift the hinge cover off.
2. If your computer has an internal modem, disconnect the twisted wire pair from connector JP2 on the RJ-11 card.
3. Remove the twisted wire pair from under the tabs in the thermal shield.
4. Bend the cables back over the palmrest assembly to move them out of the way of the thermal shield.
5. Remove the three flat-head 4-mm screws and the one K-head 4-mm screw securing the thermal shield.
Note that the K-head screw is leftmost and is thicker than the other three.
6. Remove the thermal shield from the palmrest assembly.
Note that the bottom of the shield has an EMI fence that surrounds the processor board.
To remove the internal modem card, perform the following steps:
1. Gently pull the modem card off of connector JP19 on the system board. Do not rock the card to remove it, because this may damage the
connectors.
2. Remove the carrier tray by sliding it toward the back of the computer.
3. Remove the modem card from the carrier tray.
Heat Exchanger/Fan Removal
Figure 20. Heat Exchanger/Fan Components
To remove the heat exchanger/fan (see Figure 20), perform the following steps:
1 Cable
2 Fan
3 Heat exchanger
4 5-mm screws (2)