Dell U2520DR Service Manual page 13

4
5
6
1. Remove Sensor BD
wire from I/F BD
and Sensor BD
2. Remove Control BD
wire from I/F BD
1. Remove 4 black
tapes from Panel
2. Remove long and
short backlight wire
from LED Driver BD
1. Unlock screws on
Middle Frame
a. FHP screws*2
(See Green
- 13 -
Philips-head
screwdriver
mark) Torsion of
FPH screw
3.5-4.0kg