dell latitude c540 User Manual

							Display Assembly, Display Latch, and Hinge Covers: Dell Latitude C540/C6\
40 Service Manual
remove it from the interface connector on the system board. 
10.  Pivot the display assembly up to a 90-degree angle and lift it out of th\
e bottom  case. 
 
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							Display Assembly, Display Latch, and Hinge Covers: Dell Latitude C540/C6\
40 Service Manual
1rubber screw covers 
(6) 5
M2 x 4-mm screws (5)
2 M2.5 x 5-mm screws 
(6) 6
display-feed flex cable
3 display bezel 7flex-cable retention bracket
4 top cover 8display panel
Removing the Display Bezel 
NOTICE: Disconnect the computer and any attached devices from electrical outlets\
, 
and remove any installed batteries. 
NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by 
touching an unpainted metal surface on the computer. 
NOTICE: Read Preparing to Work Inside the Computer before performing the 
following procedure. 
1.  Remove the 
hard drive. 
2.  Remove the 
display assembly. 
3.  Use a plastic scribe to pry the six rubber screw covers out of the screw\
 holes located  on the front of the bezel. 
4.  Remove the six M2.5 x 5-mm screws located on the front of the bezel. 
NOTICE: Carefully separate the bezel from the top cover to avoid damage to the 
bezel. 
5.  Starting at the bottom of the display panel (by the Dell™ logo), us\
e your fingers to  separate the bezel from the top cover by lifting the inside of the bezel\
 while pushing 
in on the outside. 
Removing the Display Panel 
NOTICE: Disconnect the computer and any attached devices from electrical outlets\
, 
and remove any installed batteries. 
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							Display Assembly, Display Latch, and Hinge Covers: Dell Latitude C540/C6\
40 Service Manual
NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by 
touching an unpainted metal surface on the computer. 
NOTICE: Read Preparing to Work Inside the Computer before performing the 
following procedure. 
1.  Remove the 
hard drive. 
2.  Remove the 
display assembly. 
3.  Remove the 
display bezel. 
4.  Remove the 
hinge covers. 
5.  Remove the two M2 x 4-mm screws on the left side of the display panel an\
d the two  M2 x 4-mm screws on the right side of the display panel. 
NOTE: If you have a Hitachi display panel, remove the two M2 x 4-mm screws fro\
m 
the center of the left side of the display panel. 
6.  Remove the M2 x 4-mm screw that secures the display-feed flex cable thro\
ugh the  black plastic flex-cable retention bracket. 
7.  Lift from the top and rotate the display panel out of the top cover. 
8.  Disconnect the bottom flex cable connector from the inverter connector b\
y pulling  straight up on the attached pull-tab. 
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							Display Assembly, Display Latch, and Hinge Covers: Dell Latitude C540/C6\
40 Service Manual
 
1 display panel connector
2 top flex cable connector
3 pull-tab
4 bottom flex cable 
connector
5 inverter connector
9.  Remove the tape that secures the display panel connector and the tape th\
at secures  the middle of the display-feed flex cable to the display panel. 
10.  Pull the top flex cable connector down and away to remove it from the di\
splay panel  connector. 
Replacing the Display Panel 
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							Display Assembly, Display Latch, and Hinge Covers: Dell Latitude C540/C6\
40 Service Manual
1.  Reconnect the top flex cable connector to the display panel connector. 
2.  Reconnect the bottom flex cable connector to the inverter connector. 
3.  Replace the tape that secures the display panel connector and the tape t\
hat secures the middle of the display-feed flex cable to the display panel. 
4.  Place the bottom edge of the display panel in the bottom of the top cove\
r and lift  the top of the panel with your hand. 
5.  Lay the display panel in the top cover. 
6.  Reinstall the five M2 x 4-mm screws that secure the display panel to the\
 top cover. 
Display Latch
NOTICE: Disconnect the computer and any attached devices from electrical outlets\
, 
and remove any installed batteries. 
NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by 
touching an unpainted metal surface on the computer. 
Removing the Display Latch 
1.  Remove the hard drive. 
2.  Remove the 
display assembly. 
3.  Remove the 
display bezel. 
4.  Remove the two M2.5 x 5-mm screws and the two M1.7 x 3.5-mm screws that \
 secure the display latch and bracket to the top cover. 
5.  Lift the display latch and bracket out of the top cover. 
XGA Panel Shown 
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							Display Assembly, Display Latch, and Hinge Covers: Dell Latitude C540/C6\
40 Service Manual
 
1 M1.7 x 3.5-mm screws 
(2)
2 M2.5 x 5-mm screws (2)
3 display latch
4 bracket
Replacing the Display Latch 
1.  On XGA panels, place the display latch on top of its screw holes, and then place the \
bracket on top of the display latch, aligning the bracket and display la\
tch screw 
holes. 
On SXGA+ panels, align the screw holes and place the display latch and attached 
bracket in the top cover.
2.  Replace the two M2.5 x 5-mm screws and the two M1.7 x 3.5-mm screws that\
  secure the display latch and bracket to the top cover. 
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							Display Assembly, Display Latch, and Hinge Covers: Dell Latitude C540/C6\
40 Service Manual
Hinge Covers
Removing the Hinge Covers 
1.  Remove the display assembly. 
2.  Rotate the hinges forward at an angle of approximately 90 degrees to the\
 front of  the display assembly. 
3.  To remove the hinge covers, slide them off the hinges. 
 
Replacing the Hinge Covers 
1.  Attach the display assembly to the bottom case. 
2.  Close the display. 
3.  Snap the hinge covers in place over the hinges. 
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							Display Assembly, Display Latch, and Hinge Covers: Dell Latitude C540/C6\
40 Service Manual
NOTE: The right plastic hinge cover label includes an R, and the left plasti\
c hinge 
cover label includes an L. The hinge cover labels face the back of the\
 computer. 
 
1 right hinge cover
2 left hinge cover
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							Display Assembly, Display Latch, and Hinge Covers: Dell Latitude C540/C6\
40 Service Manual
Back to Contents Page
 
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							Palm Rest: Dell Latitude C540/C640 Service Manual
Back to Contents Page 
Palm Rest 
Dell™ Latitude™ C540/C640 Service Manual
Removing the Palm Rest 
NOTICE: Disconnect the computer and any attached devices from electrical 
outlets, and remove any installed batteries. 
NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by 
touching an unpainted metal surface on the computer. 
NOTICE: Read Preparing to Work Inside the Computer before performing the 
following procedure. 
1.  Remove the 
hard drive. 
2.  Remove the 
keyboard. 
NOTICE: You must remove the display assembly before you remove the palm 
rest; the display hinges pass through the back of the palm rest. 
3.  Remove the 
display assembly and hinge covers. 
4.  Turn the computer over and remove the three M2.5 x 12-mm screws labeled \
 circle P. 
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