Advertisement
2
DELL U2421E
Use a Philips-head screwdriver to release 1 screws
for unlocking the USB board, then disconnect the
S9
USB FFC cable away from the connector of the
interface board and remove the Usb board unit.
(No.1screw size=M3x6, Torque=4
Disconnect the LED cable from the connector of the
interface board. Use a Philips-head screwdriver to
S10
remove 12pcs screws for unlocking the middle bezel
with front bezel.
(No.1~4 screw size=M3x5,
3
6
5
9
12
Tear off 1pcs mylar tape for unfixing the panel lamp
S11
cable, then release the panel lamp cable from the
hooks of the middle bezel.
0.5kgfxcm)
±
1
Torque=5
0.5kgfxcm
)
±
1
7
2
4
10
8
11
Lift up and take away the middle bezel, then put it on
S12
a cushion foam. Tear off the tape on the back of
middle bezel for releasing the LED cable, then tear
off the mylar tape for releasing the LED board.
Tear off 1pcs conductive tape for uncovering the
S13
panel lamp connector, then disconnect the panel
lamp cable from the panel and board.
Advertisement
