Dell S2421HS Simplified Service Manual page 8

Take 1pcs front bezel, then lift up the panel with
S8
bracket and assemble the front bezel with the panel
module. Paste 1pcs tape to cover the LVDS connector.
Take a function key board and a middle bezel, then
fix the middle bezel with a fixture, and locate the
function keyboard into the hooks of the bezel Use a
S9
Philips-head screwdriver to tighten 3pcs screws for
locking the function key board with the middle bezel.
(No.1~3 screw size=M2x2.4, Torque=0.8±0.2kgfxcm
3
Tear off the papers of the tapes on the back of the
key cable, and then fix the function key cable on the
S10
back of bezel by 1pcs tape, then assemble the
middle bezel with the front bezel and panel module.
4. Disassembly and Assembly Procedures
.
2
1
Use a Philips-head screwdriver to tighten 2pcs
S11
screws for locking the bracket with panel module.
(No.1~2 screw size=M3x3, Torque=3~4kgfxcm)
2
Use a Philips-head screwdriver to lock 11pcs screws
for locking the middle bezel with the panel module,
then lock 5pcs screws for locking the middle bezel
S12
with front bezel.
(No.1~11 screw size=M3x4, Torque=3~4kgfxcm;
No.12~16 screw size=M2x3.3, Torque=1±0.2kgfxcm)
4
2
8
6
10
14
15
Connect the function key cable to the connector of
S13
board, then connect the panel lamp to the connector
of the panel module.
Paste 1pcs aluminum foil to fix bracket chassis as
S14
the picture below shown. Paste 1pcs aluminum foil
to cover the LVDS connector.
1
1
5 3
9
7
11
12
16
13