Dell P2421B, Simplified Service Manual

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4. Disassembly and Assembly Procedures
4.1 Disassembly SOP
Preparation before disassemble
1. Clean the room for disassemble
2. Identify the area for monitor
3. Check the position that the monitors be placed and the quantity of the monitor; prepare the area for
material flow; according to the actual condition plan the disassemble layout
4. Prepare the implement, equipment, material as bellow:
1) Working table
2) Philips-head screwdriver
3)
Hex-head screwdriver
4) Glove
5) Cleaning cloth
6) ESD protection
Item Picture Operation Tool Notes
1
To remove the stand:
1.
Place the monitor
on a soft cloth or
cushion.
2. Press and hold the
stand release
button.
3. Lift the stand up and
away from the
monitor.
2
1. Unlock 4 screws on
Rear Cover Philips-head
screwdriver
Torsion of
screw:
8.5±1.0Kg
3
1. Disassemble Rear
Cover from the
monitor
2.
Notice the
disassembly order:
1) Disassemble the
Top part
2) Disassemble the
Left / Right part
3) Disassemble the
Bottom part
4) Remove RC from
Mid-Frame