dell latitude c400 User Manual

							System Components : Dell Latitude C400 Service Manual 
7bottom case 14keyboard
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							Keyboard : Dell Latitude C400 Service Manual 
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Keyboard 
Dell™ Latitude™ C400 Service Manual 
  Removing the Keyboard
  Replacing the Keyboard
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 
hard drive. 
NOTICE: The key caps on the keyboard are fragile, easily dislodged, and time-
consuming to replace. Be careful when removing and handling the keyboard\
. 
2.  Turn the computer right-side up and remove the center cover. 
Center Cover Removal 
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							Keyboard : Dell Latitude C400 Service Manual 
 
1 center cover
a.  Open the computer all the way (180 degrees) so that it lies flat again\
st your work surface. 
b.  Press and hold down the  and  keys to reveal the left release  slot of the center cover. 
NOTE: To protect the keycaps, it may be helpful to place a straightedge (such\
 
as a short ruler) across the first row or two of keycaps, and press on \
the 
straightedge instead of on the keycaps themselves. 
c.  Insert a flat-blade screwdriver into the slot. While holding the screwdr\
iver, make your hand into a fist, brace your knuckles against the keyboard, an\
d 
pry up the center cover. 
d.  Repeat steps b and c for the right release slot, located behind the \
  and  keys. 
e.  Lift the center cover up and away from the bottom case. 
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							Keyboard : Dell Latitude C400 Service Manual 
3.  Remove the four M2 x 4-mm screws that secure the back edge of the keyboa\
rd. 
Keyboard Screws 
 
1 M2 x 4-mm screws (4)
2 keyboard locator tab
3 keyboard securing tabs (5)
4.  Pry up the keyboard locator tab, lift the back edge of the keyboard slig\
htly, and  then pull the keyboard a small distance toward the back of the computer \
to 
release the five securing tabs located across the front edge of the keyb\
oard. 
5.  Rotate the keyboard toward the front of the computer and place it face-d\
own on  the palm rest. 
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							Keyboard : Dell Latitude C400 Service Manual 
NOTICE: Do not pull on the keyboard flex cable. 
Keyboard Removal 
 
1 keyboard flex cable
6.  Use the pull tab to pull the keyboard flex cable up from its connector o\
n the  system board. 
The keyboard is now disconnected from the bottom case.
Replacing the Keyboard
1.  Replace the hard drive. 
2.  Place the keyboard face-down on the palm rest, with the keyboard flex ca\
ble 
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							Keyboard : Dell Latitude C400 Service Manual 
pointing toward the back of the computer. 
NOTICE: To avoid damage to the connector pins, press the keyboard flex cable 
connector evenly into the interface connector on the system board, and d\
o not 
reverse the keyboard connector. 
3.  Connect the keyboard flex cable to its interface connector on the system\
 board. 
To aid with proper flex cable connection, a white locator line has been \
added near 
the end of the flex cable. Press the cable into the connector until the \
white line 
disappears and hold it steady while you snap the flex cable connector do\
wn. (The 
white line may reappear after the connector is closed; this should not i\
ndicate a 
problem with the connection.)
NOTICE: Position the keyboard flex cable so that it is not pinched when you 
replace the keyboard in the bottom case. 
Keyboard Replacement 
 
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							Keyboard : Dell Latitude C400 Service Manual 
1keyboard securing tabs (5)
4.  Carefully rotate the keyboard back and fit it into the bottom case. 
Ensure that all five securing tabs are engaged in their respective slots\
 before 
trying to completely seat the keyboard. Fitting the tabs to the slots ma\
y be 
easiest when viewed from above and slightly behind the front edge of the\
 
keyboard. Press down on the left and right  keys to help control ta\
b/slot 
alignment. 
When the keyboard appears to be completely seated, confirm that the fron\
t edge 
of the keyboard is aligned with the edge of the palm rest before proceed\
ing.
5.  Replace the four M2 x 4-mm screws at the back of the keyboard. 
6.  Replace the center cover. 
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							Memory Module and Modem Daughter Card : Dell Latitude C400 Service Manua\
l 
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Memory Module and Modem Daughter 
Card 
Dell™ Latitude™ C400 Service Manual 
  Removing the Memory Module/Modem Cover
  Removing the Memory Modules
  Replacing the Memory Modules
  Removing the Modem Daughter Card
  Replacing the Modem Daughter Card
Removing the Memory Module/Modem 
Cover
NOTE: This procedure covers removing and replacing the memory module 
located under the memory module/modem cover on the bottom of the 
computer. A second memory module resides on the upper surface of the sys\
tem 
board under the critical component shield. To replace the memory module \
under 
the critical component shield, perform the procedure for 
removing the palm rest 
up to and including removal of the critical component shield. Then repla\
ce the 
memory module. 
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.  Turn the computer over, and use a #1 Phillips screwdriver to release the\
 two  captive screws from the memory module/modem cover. 
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							Memory Module and Modem Daughter Card : Dell Latitude C400 Service Manua\
l 
2.  Place your finger under the cover at the indentation, rotate the cover o\
pen, and remove it. 
Memory Module/Modem Cover 
 
Removing the Memory Modules
NOTICE: Disconnect the computer and any attached devices from electrical 
outlets, and remove the battery. 
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 
memory module/modem cover. 
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							Memory Module and Modem Daughter Card : Dell Latitude C400 Service Manua\
l 
NOTICE: To prevent damage to the memory module connector, do not use 
tools to spread the inner metal tabs that secure the memory module. 
2.  Use your fingertips to carefully spread apart the inner tabs on each end\
 of the  memory module socket. 
The module should pop up.
Memory Module Removal 
 
1 memory module socket
2 inner tabs (2)
3.  Lift the memory module out of its socket. 
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