DELL UP3221QB
1
1. Disassembly Procedures
Use hands or scraper bar and follow the
sequence to disassemble Rear Cover
from Middle Frame
S1
S4
Turn off the monitor.
To remove the stand:
S2
Place the monitor on a soft cloth or
cushion
Press and hold the stand release button
Press and lift the cover latch to release
and remove the cover
Unlock 2 RC base screws and 4 RC
S3
screws to disassemble Rear Cover
Disassemble LENS BD from Middle
Frame
(Screw Torque: 4.5 ± 0.5kgf)
S5
Unplug CTRL BD FFC from LENS BD
1
3
4
2
(Screw Torque: 9 ±1kgf)
DELL UP3221QB
3
Tear off 2 yellow tapes from SOC BD
Tear off “CTRL BD GASKET” and “USB
GASKET” from Middle Frame
S12
S15
Unlock MF screws*13 (See Yellow
mark) and TP-S screws*5 (See White
Mark)
Disassemble Middle Frame to Panel
Unplug “CALIBRATOR FFC” from SOC
BD (See Green mark)
S13
Unplug “CALIBRATOR Color Wire” from
SOC BD (See Blue mark)
Unplug “CALIBRATOR Black Wire” from
SOC BD (See Red mark)
(Screw Torque: 4.0-4.5kgf)
Unplug “SPS BD to LED DRV BD Wire”
from SPS BD and LED DRV BD (See
Orange mark)
S16
Disassemble “SPS BD to LED DRV BD
Wire” from the clips (See Yellow mark)
Unplug “TBT BD Wire” from “TBT BD”
and “SOC BD” (See Blue mark)
Unplug “SOC Backlight wire” from “SOC
BD” (See Green mark)
Tear off the tapes from CALIBRATOR
wires and Panel
S14
Tear off a yellow tape and unplug “SOC
wire” from “SOC BD” (See Purple mark)
Take out all CALIBRATOR wires from
the hole of Main SHD
Unlock 2 PCBA screws to disassemble
“SOC BD” from I/F BD (See Red mark)
Disassemble “Short Spacer” from SOC
BD (See Pink mark)
(Screw Torque: 5.0-5.5kgf)
Unlock 1 grounding screw
Unplug all “Backlight FFC” from LED
DRV BD
S17
S19
S20
S21
Disassemble “AC Wire” from “ASSY
BKT PLATE
Unplug “Short FFC 30P” from “LED
DRV BD (Right)” and “MCU BD”
Unplug “Long FFC 30P” from “LED DRV
BD(Left)” and “MCU BD
Unlock PCBA screws*12 to disassemble
2 “LED Driver BD” from “ASSY BKT
PLATE”
(Screw Torque: 5.0-5.5kgf)
Unlock PCBA screw*5 to disassemble
SPS BD from “ASSY BKT PLATE”
S18
(Screw Torque: 5.0-5.5kgf)
Unplug “MCU BD FFC” from I/F BD and
MCU BD
Unlock PCBA screw*4 to disassemble
“MCU BD” from “ASSY BKT PLATE”
(Screw Torque: 5.0-5.5kgf)
(Screw Torque: 5.0-5.5kgf)
DELL UP3221QB
5
Tear off a tape from EDP wire and TBT
BD
S22
Unplug “TBT BD FFC” and “EDP wire”
from “TBT BD”
Unlock PCBA screw*2 to disassemble
“TBT BD” from “ASSY BKT PLATE”
(Screw Torque: 5.0-5.5kgf)
Tear off a yellow tape from “SOC wire”
and I/F BD (See White mark)
S23
(Screw Torque: 5.0-5.5kgf)
Unplug “SOC wire” and “SOC Backlight
wire” from I/F BD
Unlock screws*4 to disassemble “ASSY
BKT PLATE” from panel
S24
Tear off a tape from “EDP FFC” (See
Green mark)
Note:
Insert “Thermal Sensor FFC” and “EDP
FFC” through the hole of “ASSY BKT
PLATE” while disassembling “ASSY
BKT PLATE” from Panel
Unplug “Thermal Sensor FFC” and
“EDP FFC” from I/F BD (See Pink mark)
Disassemble “Spacer” from I/F BD (See
Blue mark)
Unlock 2 Bolts (See Orange mark) and
2 PCBA screws (See Red mark) from I/F
BD to disassemble I/F BD from “ASSY
BKT PLATE”
Tear off a tape from EDP wire and I/F
BD (See Yellow mark)
Unplug “TBT BD FFC” and “EDP wire”
from I/F BD
(Screw Torque: 5.0-5.5kgf)
Tear off two tapes from the lower-left
corner and lower-right corner of the
panel
Unlock screw*1 to disassemble USB BD
from Rear Cover
S25
S29
Unplug “USB FFC” from USB BD
Tear off a yellow tape from EDP FFC
and unplug EDP FFC from panel
S26
Unplug all “Backlight FFC” from panel
(Screw Torque: 4.0-4.5kgf)
Tear off a conductive tape from CTRL
BD and Rear Cover
S30
Unlock screw*3 to disassemble CTRL
BD from Rear Cover
Tear off a tape from Thermal Sensor
FFC
S27
Unplug Thermal Sensor FFC from
Thermal Sensor BD and disassemble
Thermal Sensor BD from panel
(Screw Torque: 1.2-1.3kgf)
Tear off 2 tapes from Main SHD
S31
Tear off tapes and “CTRL BD FFC” from
Rear Cover
S28
Take out FAN wire from the hole of Main
SHD (See Blue mark)
S32
DELL UP3221QB
7
Unlock screws*8 to disassemble FAN
from Main SHD
Take off the Calibrator Cover from
middle frame.
S33
S36
Unlock 6 screws to disassemble
CALIBRATOR Module from middle
frame
S37
(Screw Torque: 5.0-5.5kgf)
Disassemble Calibrator Cover from
Middle Frame.
S34
(Screw Torque: 4.5 ±0.5kgf)
Take off CALIBRATOR Module from
Middle Frame
S38
Unplug “CALIBRATOR FFC Cable” from
CALIBRATOR module
Disassemble “Spring L” and “Spring R”
from Calibrator Cover.
S35
Spring L
Spring R
Disassemble “Spring R” and “Spring L”
from Middle Frame
S39
Note: You can use screwdriver to make
spring unhook from Calibrator Cover.
Remove electrolyte capacitors (red mark) from printed circuit boards
S40
S40-1 Cut the glue between bulk cap. and PCB with a knife
S40-2 Ensure cutting path within the glue, don’t touch bulk cap. or PCB
DELL UP3221QB
9
S40-3 Take out bulk cap. pin solder with soldering iron and absorber
S40-4 Lift the bulk cap. up and away from the PCB
DELL UP3221QB
10
2. Product material information
The following substances, preparations, or components should be disposed of or
recovered separately from other WEEE in compliance with Article 4 of EU Council
Directive 75/442/EEC.
Capacitors / condensers (containing
PCB/PCT)
No used
Mercury containing components
Batteries
No used
No used
Printed circuit boards (with a surface greater
than 10 square cm)
Product has printed circuit boards
(with a surface greater than 10 square
cm)
Component contain toner, ink and liquids
Plastic containing BFR
Component and waste contain asbestos
CRT
Component contain CFC, HCFC, HFC and
HC
Gas discharge lamps
No used
No used
No used
No used
No used
No used
Product has an LCD greater than 100
cm2
LCD display > 100 cm2
External electric cable
Product has external cables
No used
No used
Product has electrolyte capacitors
(height >25mm, diameter > 25mm)
Component contain refractory ceramic fibers
Component contain radio-active substances
Electrolyte capacitors (height
> 25mm, diameter > 25mm)
3. Tools Required
List the type and size of the tools that would typically can be used to disassemble the
product to a point where components and materials requiring selective treatment can be
removed.
Tool Description:
- Screwdriver
- Scraper Bar
- Penknife
- Soldering iron and absorber
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