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Dell U2421HE Service Manual page 10

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Move the assembled rear cover close to the
panel unit, then connect the USB FFC cable to
the connector of interface board. Put down the
S16
rear cover and push the rear cover on the
positions marked as the picture below shown for
mechanisms engagement.
Use a Philips-head screwdriver to tighten 4pcs
screws for locking the rear cover with the assembled
unit. Stick two pieces of label on the specific
S17
positions, then insert a DP out Cap into the DP out
connector.
(No.1~4 screw size=M4x10; Torque=9
2
4
4. Disassembly and Assembly Procedures
0.5kgfxcm)
±
3
1
Take a stand base close to the monitor. Fit the two
tabs on the upper part of the stand into the grooves on
S18
the back of the monitor, and then lower the stand so
that the monitor mounting area snaps onto the stand.
Lift up the monitor to checking the gap between the
front bezel with panel module , then provide power
S19
supply and a video signal to the monitor
the monitor for functionality check.
, then turn on

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