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Dell U2421HE Service Manual page 7

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4.2 Assembly Procedures:
Place a bracket chassis base on a protective
S1
cushion, then stick 6pcs Silicon sheets on the
positions as the picture below shown.
Turn over a power board and put the power board
S2
into the bracket chassis, settle the panel power
cable to the correct position.
Take a interface board, connect 1pcs LVDS cable to
the connector of the interface board, then connect
the cable of the power board to the connector of the
interface board. Turn over the interface board and
S3
locate it into the bracket. Use a Philips-head
screwdriver to tighten 6pcs screws for locking the
interface board.
(No.1 screw size=M4x8, Torque=6
4. Disassembly and Assembly Procedures
kgfxcm)
±0.5
1
Take 1pcs driver board, connect the correct cables of
the power board to the connector of the driver board,
then turn over the driver board and locate it into the
bracket. Use a Philips-head screwdriver to tighten
S4
6pcs screw for locking power board, interface board
and the driver board with the bracket chassis, then
locate the cables to the hooks of the bracket chassis
module.
(No.2~7 screw size=M4x8, Torque=6
3
Use a
Philips-head screwdriver to tighten
for locking the AC-power outlet connector. Take a
S5
mylar to insert the hooks of the bracket to cover the
power board.
(No.1~2 screw size=M3x8, Torque=6~8kgfxcm)
kgfxcm)
±0.5
2
5
7
4
6
two screws
2
1

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