dell latitude c840 User Manual

							System Upgrades: Dell Latitude C840 Service Manual
2.  Connect the internal-antenna cable to the primary-antenna connector on t\
he card. 
NOTICE: The connectors are keyed for correct insertion; do not force the 
connections. 
 
1 internal-antenna cable
2 primary-antenna 
connector on card
3.  Pivot the Mini PCI card down until it clicks into place. 
4.  Replace the Mini PCI card cover and the M2.5 x 20-mm screw. 
file:///F|/Service%20Manuals/Dell/Latitude/c840/upgrades.htm (8 of 9) \
[2/28/2004 8:03:38 AM] 
						

							System Upgrades: Dell Latitude C840 Service Manual
Back to Contents Page
 
 
 
file:///F|/Service%20Manuals/Dell/Latitude/c840/upgrades.htm (9 of 9) \
[2/28/2004 8:03:38 AM] 
						

							Keyboard: Dell Latitude C840 Service Manual
Back to Contents Page 
Keyboard 
Dell™ Latitude™ C840 Service Manual
NOTICE: Disconnect the computer and attached devices from electrical outlets 
and remove any installed batteries. 
NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by 
periodically touching unpainted metal on the computer. 
 
file:///F|/Service%20Manuals/Dell/Latitude/c840/keyboard.htm (1 of 5) \
[2/28/2004 8:03:39 AM] 
						

							Keyboard: Dell Latitude C840 Service Manual
1M2.5 x 20-mm screws 
(4)
Removing the Keyboard 
1.  Follow the instructions in Preparing to Work Inside the Computer. 
2.  Turn the computer over and remove the four M2.5 x 20-mm screws (three  labeled circle K and one labeled circle K/M). 
3.  Turn the computer over and open the display. 
NOTICE: Be careful when handling the keyboard. The keycaps are fragile, 
easily dislodged, and time-consuming to replace. 
4.  Use a nonmarring plastic scribe under the blank key to pry up the keyboa\
rd. 
file:///F|/Service%20Manuals/Dell/Latitude/c840/keyboard.htm (2 of 5) \
[2/28/2004 8:03:39 AM] 
						

							Keyboard: Dell Latitude C840 Service Manual
 
1 blank key
2 keyboard
3 right side of computer
5.  Lift the right end of the keyboard and slide it slightly toward the righ\
t side of the  computer to disengage the tabs at the left end. 
6.  Pivot the keyboard and balance it upright on the left side of the comput\
er. 
file:///F|/Service%20Manuals/Dell/Latitude/c840/keyboard.htm (3 of 5) \
[2/28/2004 8:03:39 AM] 
						

							Keyboard: Dell Latitude C840 Service Manual
 
1 keyboard cable
2 keyboard interface 
connector
3 system board
7.  Disconnect the keyboard cable and lay the keyboard aside. 
Replacing the Keyboard 
1.  While bracing the keyboard upright on its left end, connect the keyboard\
 cable  to the keyboard interface connector on the system board. 
file:///F|/Service%20Manuals/Dell/Latitude/c840/keyboard.htm (4 of 5) \
[2/28/2004 8:03:39 AM] 
						

							Keyboard: Dell Latitude C840 Service Manual
NOTICE: Position the keyboard/track-stick flex cable so that it is not pinched 
when you replace the keyboard in the bottom case. 
2.  Insert the metal tabs at the left end of the keyboard under the edge of \
the  bottom case, and fit the keyboard into place. 
3.  Check that the keyboard is correctly installed. The keys should be flush\
 with the  left and right surfaces of the palm rest. 
4.  Turn the computer over and reinstall the four M2.5 x 20-mm screws. For e\
xtra  stability, you can open the computer slightly and brace the keyboard und\
er each 
screw as you install the screw. 
Back to Contents Page
 
 
 
file:///F|/Service%20Manuals/Dell/Latitude/c840/keyboard.htm (5 of 5) \
[2/28/2004 8:03:39 AM] 
						

							Display: Dell Latitude C840 Service Manual
Back to Contents Page 
Display 
Dell™ Latitude™ C840 Service Manual
  Display Overview
  Hinge Cover
  Display Assembly
  Display Bezel
  Display Panel
  Display Latch
Display Overview
NOTICE: Disconnect the computer and attached devices from electrical outlets 
and remove any installed batteries. 
NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by 
periodically touching unpainted metal on the computer. 
file:///F|/Service%20Manuals/Dell/Latitude/c840/display.htm (1 of 10) \
[2/28/2004 8:03:40 AM] 
						

							Display: Dell Latitude C840 Service Manual
 
1 display 
2 hinge cover
3 M2.5 x 6-mm screws (3)
4 bottom case
5 display flex cable
file:///F|/Service%20Manuals/Dell/Latitude/c840/display.htm (2 of 10) \
[2/28/2004 8:03:40 AM] 
						

							Display: Dell Latitude C840 Service Manual
Hinge Cover
 
1 hinge cover
1.  Follow the instructions in 
Preparing to Work Inside the Computer. 
2.  Use a nonmarring plastic scribe to loosen the hinge cover at the back an\
d at  each side of the computer. 
3.  Open the computer and use the scribe to pry between the 
 key and the 
hinge cover until the hinge cover pops off. 
4.  Open the display and lift off the hinge cover. 
Display Assembly
file:///F|/Service%20Manuals/Dell/Latitude/c840/display.htm (3 of 10) \
[2/28/2004 8:03:40 AM]