Dell P2421B Simplified Service Manual page 10

8
9
1. Remove Safety
Mylar from SPS BD.
2. Unlock 6 PCBA
screws from PCBA.
3. Unlock 4 hexagonal
screws from Main
SHD
1. Disassemble I/F BD
from Main SHD and
unplug SPS BD wire
2. Unplug FFC LVDS
cable from I/F BD
3. Disassemble SPS
BD from Main SHD
- 10 -
1. Philips-
head
screwdriver
Torsion of
PCB screw:
6.5±1.0Kg
2. Hex-head
screwdriver
Torsion of hex
screw:
5.0±0.6Kg