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10 Dell Latitude L400 Service Manual
6. Turn the computer right-side up.
7. Open the display.
8. Remove the left and right hinge covers.
NOTE: When replacing the display assembly, the left hinge cover must go
over the left hinge and the right hinge cover must go over the right hinge.
They are not interchangeable. An L is stamped on the bottom of the left
hinge cover and an R is stamped on the bottom of the right hinge cover.
9. Remove the M2 x 9.5-mm screw that secures the LCD flex-cable
hold-down clip and the LCD flex-cable connector to the system board
assembly (see Figure 8).
The M2 x 9.5-mm screw also secures the left side of the modem retainer
bracket to the system board assembly.
10. Carefully disconnect the LCD flex-cable connector from the system board.
11. Lift the display assembly from the bottom assembly.
To replace the display assembly, perform the following steps:
1. Place the display assembly on the bottom assembly.
Insert the left and right hinge posts into the holes at the top of the
palmrest.
2. Carefully connect the LCD flex cable to the connector on the system
board.
3. Place the LCD flex-cable hold-down clip over the LCD flex-cable connector
(see Figure 8).
The tab at the left of the clip should go under the palm rest, and the screw
hole on the right side of the clip should line up with the holes in the
connector ground strip and the threaded hole in the system board.
4. Reinstall the M2 x 9.5-mm screw that secures the LCD flex-cable
hold-down clip to the system board.
5. Close the display.
You may have to press down on the back end of the display (above the
hinges) while closing the display to get the display to close completely.
6. Reinstall the two M2 x 4.5-mm screws that secure the display assembly to
the bottom case.
You may have to squeeze the display assembly and the bottom assembly
together, so the screw holes align in the base assembly and the hinge
posts.
Do not completely tighten the screws.