Dell Inspiron 7500 - Manual (Page 161)

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Thermal Shield and Internal Modem Removal: Dell™ Inspiron™ 7500
The thermal shield serves as a heat shield for the system board, as well as an EMI fence for the processor board.
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This procedure assumes that you have removed the keyboard . To remove the thermal shield, follow these steps:
1. Remove the right hinge cover.
15-Inch XGA and 15-Inch SXGA+ LCD Panels
Open the computer to 170 degrees, supporting the display assembly. 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. 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. 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. Remove the twisted wire
pair from under the tabs in the thermal shield. Bend the cables back over the palmrest assembly to move them out of the way of the thermal
shield.
3. Remove the 3 flat-head 4-mm screws and the 1 K-head 4-mm screw securing the thermal shield. Note that the K-head screw is leftmost and
is thicker than the other 3.
4. Remove the thermal shield from the palmrest assembly. Note that the bottom of the shield has an EMI fence that surrounds the processor
board.
5. If you have an internal modem, disconnect the LCD wire harness from connector JP3.
Remove the 2 Phillips screws on the LCD wire harness on the JP3 connector. Use a dental pick or flat=blade screwdriver to pry up each end of the connector to
release it.
6. Close the display.
7. Remove the (4) 6-mm screws that secure the 2 hinges.