Dell Inspiron 7500 Removing And Replacing Parts Manual

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To remove the RJ-11 card (see Figure 32), perform the following these steps:
1. Remove the 4-mm screw securing the RJ-11 card to the system board.
2. Lift the card off the system board. 
System Board Removal
Figure 34.  System Board Components
This procedure assumes that you have removed the PC Card heat sink and hinge sad-
dles. To remove the system board (see Figure 33), perform the following steps:
1. Remove the three 4-mm screws from the bottom of the computer.
2. Remove the system board from the bottom case.14-mm screws (3)
2System board 
						

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PC Card Cage Removal
Figure 35.  PC Card Cage Components 
This procedure assumes that you have removed the system board from the plastic 
case. To remove the PC Card cage (see Figure 34), perform the following steps:
1. Remove the 4-mm screw securing the audio bezel.
2. Remove the audio bezel.
3. Remove the four 18-mm screws securing the PC Card cage to the system board.
Use a support for the system board to prevent the board from flexing when the 
card cage screws are removed.  14-mm screw
2PC card cage
3System board
418-mm screws (4)
5Audio bezel 
						

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4. Gently pull the card cage off of connector UP9 on the system board. Do not rock 
the cage to remove it, because this may damage the connectors.
Replace the PC Card cage if it is damaged.
Audio Card and Audio Thermal Shield 
Removal
Figure 36.  Audio Card/Thermal Shield Components
This procedure assumes that you have removed the system board from the plastic 
case and have removed the PC Card cage from the system board. To remove the 
audio card and audio thermal shield (see Figure 35), perform the following these 
steps:
1. Gently pull the audio card off of connectors JP12 and JP13 on the system board. 
Do not rock the card to remove it, because this may damage the connectors. 
2. Remove the 10-mm screw securing the audio thermal shield, and then remove 
the shield. 110 - m m  s c r e w
2Audio thermal shield
3Audio card 
						

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Latch Assembly Removal
Figure 37.  Latch Assembly Components 
To remove the latch assembly (see Figure 36), perform the following steps:
1. Disconnect the LED cable from connector JP2 on the LED board.
2. Remove the 4-mm screw securing the LED board to the plastic base.
3. Remove the LED board.
4. Remove the two 4-mm screws holding the latch cover for the MegaBay and 
media bay.
5. Remove the latch cover.
6. Remove the center lock over the two latches with springs.1Springs (2)
2Latches (2)
3Center lock
4Latch cover
54-mm screws (3)
6LED board
7LED cable 
						

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7. Remove each spring and latch.
Be careful not to lose the small springs.
Display Assembly and Display Assembly 
Component Removal
Figure 38.  Display Assembly Removal 
1LCD wire harness
2Connector JP3
3Hinge saddles (2)
4Hinges (2)
56-mm screws (4)
6Left saddle hinge 
						

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This procedure assumes that you have removed the keyboard and thermal shield. The 
following procedure applies to all LCD displays (15-inch XGA, 15-inch SXGA+, and 
15.4-inch SXGA). 
1. Remove the left hinge cover (see Figure 37).
Remove the two Phillips screws on the LCD wire harness on JP3. Use a dental 
pick or flat-blade screwdriver to pry each end of the connector to release it.
2. Close the display.
3. Remove the four 6-mm screws that secure the two hinges.
4. Unlatch the display assembly and lift the assembly off the computer base.
Display Assembly Component Removal
Figure 39.  Front Bezel Removal
This procedure assumes that you have removed the display assembly from the com-
puter base. To remove the front bezel (see Figure 38), perform the following steps:
1. Use a dental pick to pr y the rubber screw covers off of the bottom two screws 
and the rubber bumpers off of the top two screws. 1Front bezel
26-mm screws (2)
3Rubber screw covers (2) 
						

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2. Remove the four 6-mm screws from the front bezel.
3. Unsnap the front bezel from the back cover and remove it from the assembly.
Carefully insert your fingers between the LCD panel and the bezel. Roll the plas-
tic up slightly to insert your fingers further in, and then lift upward to free the 
snaps. Start at the middle bottom and then work around.
When replacing the bezel, ensure that the LCD wire harness is routed correctly 
through the openings in the back cover and is not pinched.
15-Inch LCD Panel Removal
To remove the 15-inch LCD panel, perform the following steps:
1. Turn the computer over and remove the four+ screws from the bottom of the 
computer. 
2. Turn the computer back over and open the display. 
3. Remove the plastic hinge covers.
4. Insert a small flat-blade screwdriver or a similar plastic tool along the top-right 
edge of the keyboard, above the row of function keys. Working from right to left, 
free the keyboard by pr ying it toward the front of the unit. When free, lift the top 
of the keyboard slightly to clear the palmrest assembly. 
5. Remove the keyboard bracket (located in the upper-right corner of the keyboard).
6. Remove the four screws that secure the two hinges.
7. Unplug the LCD wire harness and lift the assembly off the computer base.
To remove the front bezel, follow these steps:
1. Remove the two rubber screw covers and screws on the LCD near the hinge. 
Remove the remaining three plastic screw covers and screws, one on either side 
and one in the front.
2. With all screws removed, unsnap the front bezel from the back cover and remove 
the bezel from the assembly.
To remove the LCD panel, hinges, and inverter board, follow these steps:
1. Remove the four remaining screw covers and screws on the sides of the LCD.
2. With all screws removed, lift the LCD panel out and disconnect the inverter wire 
from the inverter board.
3. Detach the LCD wire harness from connector CN2 on the right side of the 
inverter board. 
4. Carefully remove the grounding tape between the inverter board and the LCD 
panel. 
						

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5. Remove the two 2.5-mm screws securing the inverter board to the back cover.
6. Remove the inverter board from the back cover.
To reassemble, perform the steps in reverse order. 
						

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Exploded View of Base Assembly
Figure 40.  Base Assembly Components
1DC-DC board
2Heat exchanger/fan
3Right hinge saddle extension 
						

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4Processor board
5Right hinge saddle
6RJ-11 card
7System board
8Kensington lock
9Plastic base
10Latch assembly
11LED board
12Modem shield
13Modem card
14Bracket
15Audio card
16Audio thermal shield
17Left hinge saddle
18Left hinge saddle extension
19Audio bezel
20PC card cage
21PC card heat sink