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Dell UP3221QB Simplified Service Manual page 11

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7
1. Unplug "SPS BD to
LED DRV BD Wire"
from SPS BD and LED
DRV BD (See Orange
mark)
2. Disassemble "SPS BD
to LED DRV BD Wire"
from the clips (See
Yellow mark)
3. Unplug "TBT BD Wire"
from "TBT BD" and
"SOC BD" (See Blue
mark)
4. Unplug "SOC Backlight
wire" from "SOC BD"
(See Green mark)
5. Tear off a yellow tape
and unplug "SOC wire"
from "SOC BD" (See
Purple mark)
6. Unlock 2 PCBA screws
to disassemble "SOC
BD" from I/F BD (See
Red mark)
7. Disassemble "Short
Spacer" from SOC BD
(See Pink mark)
- 11 -
Screw-
driver
Torsion of
PCBA
screw: 5.0-
5.5 kg

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