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Dell Inspiron 3000 Service Manual

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Page 71

Removing and Replacing Parts 4-35
Heat Sink
Figure 4-21.  Heat Sink Removal
To remove the heat sink, follow these steps:
1. Remove the keyboard.
2. Remove black chromate panhead screws HS1, HS2, and HS3.
The heat sink will come free except for the fan cable. Push back and lift up 
on the heat sink to access the fan cable.
3. Remove the fan cable.
The fan cable is beneath the heat sink on the left side. Use a plastic scribe or 
flat-blade screwdriver, if necessary.
4. Remove the heat sink from the...

Page 72

4-36 Dell Inspiron 3000 Series Service Manual
Status Display Panel
Figure 4-22.  Status Display Panel Removal
To remove the status display panel, follow these steps:
1. Remove the hinge covers and connector cover.
See “Keyboard” found earlier in this chapter.
2. Remove status display panel screw SD1.
3. Remove the status display panel.
The status display panel has two connectors.
4. Disconnect the status display panel connector from connector JP5 on the 
main board.
5. Disconnect the I/R cable from...

Page 73

Removing and Replacing Parts 4-37
LCD Assembly
The LCD assembly consists of the display assembly and its related components. 
This section describes how to remove either the 12.1-inch or 13.3-inch LCD 
assembly. Later sections in this chapter provide removal and replacement proce-
dures for the components of the LCD assembly.
Figure 4-23.  LCD Assembly Removal
To remove the LCD assembly, follow these steps:
1. Remove the hinge covers and the connector cover.
See “Keyboard” found earlier in this chapter....

Page 74

4-38 Dell Inspiron 3000 Series Service Manual
4. For a 12.1-inch display, remove cable connector screws G1 and G2. For a 
13.3-inch display, remove only cable connector screw G1.
On 12.1-inch displays, screw G1 holds the LCD cable ground in place. G1 
has a square washer. On 13.3-inch displays, screw G1 holds the left side of 
the LVDS board (see Figure 4-32) in place.
5. For a 12.1-inch display, disconnect the LCD flex cable from connector JP8 
on the main board. For a 13.3-inch display, disconnect the...

Page 75

Removing and Replacing Parts 4-39
Palmrest Assembly
The palmrest assembly consists of the following components:
•IR assembly
•Left and right speaker assemblies
•Hard-disk drive heat sink
•Touch-pad assembly
The following subsections provide removal and replacement procedures for the 
components of the palmrest assembly. These procedures assume that the key-
board assembly, heat sink, status display panel, and the LCD assembly have 
been removed.
Figure 4-24.  Palmrest Assembly Removal 
To remove the...

Page 76

4-40 Dell Inspiron 3000 Series Service Manual
4. Remove case screws CS5 and CS6.
These screws are on the edge of the heat sink opening.
5. Disconnect the speaker wiring harness from connector JP16 (see 
Figure 4-29).
This wiring harness also contains wiring for the touch pad and the touch pad 
buttons. 
6. Remove the palmrest assembly from the base assembly. 
Start at the right rear of the computer and move forward around the com-
puter. Carefully lift the palmrest assembly up and pull it forward to...

Page 77

Removing and Replacing Parts 4-41
IR Board
  
Figure 4-25.  IR Board Removal
To remove the IR board, follow these steps:
1. Remove the 
palmrest assembly.
2. Remove IR board screw IR1.
3. Disconnect the IR board cable from the IR board connector JP1.
4. Remove the IR board from the 
palmrest assembly.
palmrest 
assembly
connector JP1I/R board
I/R board cable 
(screw IR1 
is 3 mm)
 3 mm
IR1 

Page 78

4-42 Dell Inspiron 3000 Series Service Manual
Hard-Disk Drive Heat Sink
Figure 4-26.  Hard-Disk Drive Heat Sink Removal
To remove the hard-disk drive heat sink, follow these steps:
1. Remove the palmrest assembly.
2. Remove hard-disk drive heat sink screws HT1 through HT6.
3. Remove the hard-disk drive heat sink from the palmrest assembly. 
palmrest assembly
HT1
HT2HT3
HT4HT5
HT6
hard-disk drive heat sink(screws HT1–HT6 are 3 mm)
 3 mm 

Page 79

Removing and Replacing Parts 4-43
Touch-Pad Assembly
Figure 4-27.  Touch-Pad Assembly Removal
To remove the touch-pad assembly, follow these steps:
1. Remove the palmrest assembly.
2. Remove the hard-disk drive heat sink.
3. Remove touch-pad button screw H7.
This screw holds the touch-pad button board in place.
4. Disconnect the touch-pad cable from touch-pad button connector JP1.
This is a ZIF connector on the touch-pad board. See “ZIF Connectors” 
found earlier in this chapter.
5. Remove the touch pad...

Page 80

4-44 Dell Inspiron 3000 Series Service Manual
Speakers
 
Figure 4-28.  Speaker Removal
To remove the speaker, follow these steps:
1. Remove the 
palmrest assembly.
2. Remove the hard-disk drive heat sink.
3. Remove the touch-
pad assembly.
4. Remove left s
peaker screw S1.
5. Remove the left s
peaker cover and speaker.
To  r e
place the speaker, unsolder the wires.
6. Re
peat steps 4 and 5 for the right speaker.
The ri
ght speaker screw is S2.
The touch-
pad cable, microphone cable, microphone, speaker...
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