dell latitude c540 User Manual

Memory Modules, Mini PCI Card, and Modem: Dell Latitude C540/C640 Servic\
e Manual
2.  Align the modem with the screw holes on the system board and press down on the pull-tab to seat the modem in the connector. 
NOTICE: Pressing down on the modem somewhere other than on the pull-tab 
can break the modem. 
3.  Install the two M2 x 3-mm screws that secure the modem to the system boa\
rd. 
4.  Replace the 
memory module cover and tighten the two captive screws. 
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Keyboard: Dell Latitude C540/C640 Service Manual
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Keyboard 
Dell™ Latitude™ C540/C640 Service Manual
Removing the Keyboard 
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...

Keyboard: Dell Latitude C540/C640 Service Manual
 
1 M2.5 x 12-mm screws 
(5)
3.  Turn the computer over and open the display. 
NOTICE: The keycaps on the keyboard are fragile, easily dislodged, and time- 
consuming to replace. Be careful when removing and handling the keyboard\
. 
4.  Remove the center control cover:  a.  Insert a small, flat-blade screwdriver or plastic scribe into the notch \
at the right end of the center control cover and pry up the cover. 
b.  Lift the center control cover up and...

Keyboard: Dell Latitude C540/C640 Service Manual
 
5.  To release the keyboard from the palm rest, use a small, flat-blade scre\
wdriver  or plastic scribe to pry up the right edge of the keyboard near the blan\
k key. 
 
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Keyboard: Dell Latitude C540/C640 Service Manual
1keyboard
2 track stick
3 blank key
4 palm rest                      
6.  Lift the keyboard straight up about an inch and then rotate it forward t\
oward the  front of the computer, until the key face is resting on the palm rest. 
NOTICE: Do not pull on the keyboard flex and track stick cables. 
7.  Pull up on the keyboard connector to disconnect it from the keyboard int\
erface  connector on the system board. 
 
1 boss supports (5)
2 track stick cable
3...

Keyboard: Dell Latitude C540/C640 Service Manual
4keyboard interface 
connector
5 orientation label
8.  Remove the keyboard from the bottom case. 
Replacing the Keyboard 
1.  Place the keyboard on the palm rest at the front of the computer with th\
e keys  face down and the connector toward the back of the computer. 
NOTICE: To avoid damage to the connector pins, press the keyboard connector 
evenly into the interface connector on the system board, and do not reve\
rse the 
keyboard connector. 
2....

Keyboard: Dell Latitude C540/C640 Service Manual
Back to Contents Page
 
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Display Assembly, Display Latch, and Hinge Covers: Dell Latitude C540/C6\
40 Service Manual
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Display Assembly, Display Latch, and 
Hinge Covers 
Dell™ Latitude™ C540/C640 Service Manual
  Display Assembly
  Display Latch
  Hinge Covers
Display Assembly
NOTICE: You must remove the display assembly before you remove the palm rest. 
NOTICE: Disconnect the computer and any attached devices from electrical outlets\
, 
and remove any installed batteries. 
NOTICE: To avoid ESD, ground...

Display Assembly, Display Latch, and Hinge Covers: Dell Latitude C540/C6\
40 Service Manual
 
1M2 x 3-mm screws (2)
2 top cover
3 center control cover
4 M2.5 x 5-mm screws (5)
5 bottom case
6 display-feed flex cable
7 EMI shield bracket
8.  Remove the two M2 x 3-mm screws that secure the display-feed flex cable \
to the  system board. 
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Display Assembly, Display Latch, and Hinge Covers: Dell Latitude C540/C6\
40 Service Manual
NOTICE: When reconnecting the display-feed flex cable connector to the system 
board, push down on the top left and right ends of the connector. Pressi\
ng on the 
center of the connector may damage resistors and compromise EMI protecti\
on in 
the computer. 
 
1 M2 x 3-mm screws (2)
2 pull-tab
3 display-feed cable 
connector
4 interface connector
9.  Pull up on the pull-tab that is attached to the display-feed...