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DELL P2421B
1. Disassembly Procedures
S1
Turn off the monitor.
Place the monitor on a soft cloth or
S2
cushion.
Press and hold the stand release
button.
Lift the stand up and away from the
monitor.
Unlock 4 screws on Rear Cover
S3
(Screw Torque: 8.5±1.0kgf)
Disassemble Rear Cover from the
S4
monitor
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
2
1
1
2
3
Tear off the small aluminum foil from
S5
Main SHD
Tear off the acetate adhesive tape from
S6
Panel
Pull out CTRL BD FFC cable from I/F
BD and tear off it from Main SHD
Pull out USB BD cable from I/F BD and
S7
USB BD
Unlock 5 BZL TRIM screws
S8
(Screw Torque: 2.0±0.5kgf)
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Summary of Contents for Dell P2421B
- Page 1 DELL P2421B 1. Disassembly Procedures Tear off the small aluminum foil from Turn off the monitor. Main SHD Place the monitor on a soft cloth or cushion. Press and hold the stand release button. Lift the stand up and away from the monitor.
- Page 2 DELL P2421B Disassemble BZL TRIM from Unlock 9 MF screws Mid-Frame (Screw Torque: 4.0±0.5kgf) Pull out LED Backlight wire from SPS BD and Panel Tear off CTRL BD Mylar from CTRL BD Unlock 3 CTRL BD screws Tear off aluminum foil and tape from LVDS cable (Screw Torque: 1.2±0.5kgf)
- Page 3 DELL P2421B Unlock USB BD screw and disassemble Disassemble I/F BD from Main SHD and USB BD from Mid-Frame unplug SPS BD wire Unplug FFC LVDS cable from I/F BD (Screw Torque: 4.5±0.5kgf) Remove Safety Mylar from SPS BD Disassemble SPS BD from Main SHD Unlock 6 PCBA screws from PCBA (Screw Torque: 6.5±1.0kgf)
- Page 4 DELL P2421B Remove electrolyte capacitors (red mark) from printed circuit boards S13-1 Cut the glue between bulk cap. and PCB with a knife S13-2 Ensure cutting path within the glue, don’t touch bulk cap. or PCB...
- Page 5 DELL P2421B S13-3 Take out bulk cap. pin solder with soldering iron and absorber S13-4 Lift the bulk cap. up and away from the PCB...
- Page 6 DELL P2421B 2. Product material information The following substances, preparations, or components should be disposed of or recovered separately from other WEEE in compliance with Article 4 of EU Council Directive 75/442/EEC. Capacitors / condensers (containing No used PCB/PCT) Mercury containing components...