Dell U3424DWB Quick Start Manual page 4

Unlock 10 PCBA screws to disassemble
S19
"I/F BD", "SPS BD" and "LED Driver
BD" from Main SHD
(Screw Torque: 8.5±1 Kgf)
DELL U3824DWB
Tear off a tape from "FFC EDP"
S20
Unplug wires from I/F BD, SPS BD and
LED Driver BD
4