Dell Inspiron 3000 Service Manual

							Removing and Replacing Parts 4-55
Latch Assembly
Figure 4-38.  Latch Assembly Removal 
To remove the latch assembly, follow these steps:
1. Remove the latch assembly from the base assembly.
Use the fingers of one hand and lift the assembly from its recess in the base 
assembly. The latch assembly is held in place only by pressure.  
2. Remove the spring from the latch.
Be careful not to lose the small spring that is part of the latch assembly.
latch
spring 
						

							4-56 Dell Inspiron 3000 Series Service Manual
Kensington Lock Plate
Figure 4-39.  Kensington Lock Plate Removal   
Use a screwdriver to lift the Kensington lock plate from its recess in the base 
assembly. The plate is held in place only by pressure.  
Kensingtonlock plate
base assembly 
						

							Removing and Replacing Parts 4-57
12.1-Inch LCD Components
The 12.1-inch LCD assembly consists of the following components:
•Front bezel
•LCD panel
•Inverter board and cable
•Hinges
•Bracket
•Back cover
•LCD flex cable
The following subsections provide removal and replacement procedures for 
these components and assumes that the 12.1-inch LCD assembly has been 
removed from the computer. See “LCD Assembly” found earlier in this chapter.
12.1-Inch LCD Front Bezel
Figure 4-40.  12.1-Inch LCD Front Bezel Removal 
To remove the 12.1-inch LCD front bezel, follow these steps:
1. Remove the LCD assembly.
See “LCD Assembly” found earlier in this chapter.
2. Use a dental pick to pry the front-bezel screw covers and upper bumpers out 
of the screw holes in the bezel.
bezel screw 
covers (2)
(screws F1– F4 
are 5 mm)F1
F2 front bezel
F3 F4
5 mm
upper bumpers (2) 
						

							4-58 Dell Inspiron 3000 Series Service Manual
3. Remove front bezel screws F1, F2, F3, and F4.
4. Separate the front bezel from the back cover.
With the bottom of the LCD assembly facing you (cables end), insert your 
fingertips between the LCD panel and the front bezel. Start in the center of 
the bezel and work out to the corners. With a peel-back-and-push motion, 
separate the front bezel from the hidden tabs on the back cover. Do not put 
pressure on the LCD panel with your knuckles; microscopic fractures in the 
panel could result. Separate the bottom first and then proceed to each side, 
leaving the top of the assembly until last. When the bottom and sides have 
been released from the hidden tabs, proceed to the left corner. Lift the corner 
of the front bezel out to the side, until the hidden corner tab is freed. Repeat 
the procedure for the other corner, and lift up on the front bezel to release it 
from the back cover. Lift the back cover over the latch.
When replacing the bezel, ensure that the LCD flex cable and the inverter cable 
are routed correctly through the openings in the back cover and are not pinched.  
						

							Removing and Replacing Parts 4-59
12.1-Inch LCD Panel
.
Figure 4-41.  12.1-Inch LCD Panel Removal
To remove the 12.1-inch LCD panel, follow these steps:
1. Remove the front bezel.
See the 
previous subsection, “12.1-Inch LCD Front Bezel.”
2. Remove LCD 
panel screws LC1, LC2, LC3, and LC4.
3. Remove the LCD Panel.
NOTE: Be careful when removing any part of the LCD flex cable.
Lift u
p the LCD panel, and disconnect the LCD-to-inverter cable from con-
nector CN1 at the to
p of the inverter board. Disconnect the LCD flex cable 
from the flex-cable connector, J1, in the middle left side on the back of the 
panel.
LCD panel LC1
(screws LC1–LC4 
are 5 mm) LCD flex cable
inverter board
 LC2
 LC3  LC4
5 mmflex-cable 
connector 
LCD-to- 
inverter
cable
connector 
CN1
back cover 
						

							4-60 Dell Inspiron 3000 Series Service Manual
12.1-Inch LCD Inverter Board
.
Figure 4-42.  12.1-Inch Inverter Board Removal
To remove the 12.1-inch inverter board, follow these steps:
1. Remove the front bezel.
See “12.1-Inch LCD Front Bezel” found earlier in this section.
2. Remove the LCD 
panel.
See the 
previous subsection, “12.1-Inch LCD Panel.” You may not want to 
remove this 
panel if you are replacing only the inverter board.
3. Disconnect the inverter cable from connector CN2 at the bottom of the 
inverter board, and remove the cable.
4. Remove the inverter board from the back cover.
The inverter board is mounted on two 
plastic snaps. It is held in place by 
these sna
ps and Kapton tape near the bottom of the board.
When re
placing the inverter board, make sure you have the correct board. The 
inverter board for a 12.1-inch IBM LCD assembl
y is different from the inverter 
board for a 12.1-inch Samsun
g LCD assembly.
inverter board
connector CN2
inverter cable
snaps (2)
back cover 
						

							Removing and Replacing Parts 4-61
12.1-Inch LCD Hinges
Figure 4-43.  12.1-Inch LCD Hinges Removal 
To remove the 12.1-inch LCD hinges, follow these steps:
1. Remove the front bezel.
See “12.1-Inch LCD Front Bezel” found earlier in this section.
2. Place the back cover down on a work surface.
3. Remove the hinge screws H6, H7, H9, and H10.
You may need to loosen screws H5 and H8 to free the hinges. 
4. Remove the hinges from the back cover. 
The bracket does not have to be taken off to remove the hinges. The bracket 
in Figure 4-43 is shown removed to assist understanding.  
The hinges for the 12.1-inch LCD assembly are anodized and 
interchangeable.
latch
back cover 
hinges (2) H5
 H6
 H7
 H8
 H9
 H10
(screws H6, H7, H9, 
and H10 are 5 mm)
5 mm
(screws H5 and
 H8 are 5 mm)
5 mm 
						

							4-62 Dell Inspiron 3000 Series Service Manual
12.1-Inch LCD Bracket
Figure 4-44.  12.1-Inch LCD Bracket Removal
To remove the 12.1-inch LCD bracket, follow these steps:
1. Remove the front bezel.
See “12.1-Inch LCD Front Bezel” found earlier in this section.
2. Remove the LCD panel.
See “12.1-Inch LCD Panel” found earlier in this section. 
3. Remove the hinges.
See the previous subsection, “12.1-Inch LCD Hinges.”
4. Remove bracket screws H5 and H8.
5. Remove the bracket from the back cover.
With your fingers, slide the bracket toward the top of the cover and lift the 
bracket off the back cover. There are two clips, one near each hinge, that 
hold the bracket in place.
back cover 
bracket
(screws H5 and H8 are 5 mm)
5 mm
 H5
 H8 
						

							Removing and Replacing Parts 4-63
13.3-Inch LCD Components
The 13.3-inch LCD assembly consists of the following components:
•Front bezel
•LCD panel
•Inverter board and cable
•Hinges
•Bracket
•Back cover
•LCD wiring harness
The following procedures provide removal and replacement procedures for 
these components, and assume that the 13.3-inch LCD assembly has been 
removed from the computer. See “LCD Assembly” found earlier in this chapter.
13.3-Inch LCD Front Bezel
Figure 4-45.  13.3-Inch LCD Front Bezel Removal  
To remove the 13.3-inch LCD front bezel, follow these steps:
1. Remove the LCD assembly.
See “LCD Assembly” found earlier in this chapter.
2. Use a dental pick to pry the front-bezel screw covers out of the screw holes 
in the bezel.
3. Remove front-bezel screws F5 and F6.
bezel screw covers (2)
(screws F5 and
F6 are 5 mm)F5
F6front bezel
5 mm
bumpers (2) 
						

							4-64 Dell Inspiron 3000 Series Service Manual
4. Separate the front bezel from the back cover.
With the bottom of the LCD assembly facing you (cables end), insert your 
fingertips between the LCD panel and the front bezel. Start in the center of 
the bezel and work out to the corners. With a peel-back-and-push motion, 
separate the front bezel from the hidden tabs on the back cover. Do not put 
pressure on the LCD panel with your knuckles; microscopic fractures in the 
panel could result. Separate the bottom first and then proceed to each side, 
leaving the top of the assembly until last. When the bottom and sides have 
been released from the hidden tabs, proceed to the left corner. Lift the corner 
of the front bezel out to the side, until the hidden corner tab is freed. Repeat 
the procedure for the other corner, and lift up on the front bezel to release it 
from the back cover. Lift the back cover over the latch.
When replacing the front bezel, orient the bezel in its original position on the 
assembly and press firmly near each tab until the bezel snaps into place. Ensure 
that the LCD wiring harness and the inverter cable are routed correctly and are 
not pinched.