Dell UP3221Qb Instructions for use

- 1 -
Simplified Service Manual–UP3221QB
Version: 01
Date:2020/11/16

- 2 -
Content Index
1. General Safety Instructions ....................................................................................... 3
1.1 SAFETY: General Safety ...................................................................................... 3
1.2 SAFETY: General Power Safety ........................................................................... 5
2. Disassembly SOP ....................................................................................................... 6
3. Assembly SOP ........................................................................................................... 14

- 3 -
1. General Safety Instructions
Use the following safety guidelines to help ensure your own personal safety and to help protect your
equipment and working environment from potential damage.
NOTE: In this section, equipment refers to monitors.
IMPORTANT NOTICE FOR USE IN HEALTHCARE ENVIRONMENTS:
Dell products are not medical devices and are not listed under UL or IEC 60601 (or equivalent). As a
result, they must not be used within 6 feet of a patient or in a manner that directly or indirectly
contacts a patient
1.1 SAFETY: General Safety
WARNING: To prevent the spread of fire, keep candles or other open flames away from this product
at all times.
When setting up the equipment for use:
 Place the equipment on a hard, level surface. Leave 10.2 cm (4 in) minimum of clearance on
all vented sides of the computer to permit the airflow required for proper ventilation.
 Restricting airflow can damage the computer or cause a fire.
 Do not stack equipment or place equipment so close together that it is subject to
recalculated or preheated air.
 NOTE: Review the weight limits referenced in your computer documentation before placing
a monitor or other devices on top of your computer.
 Ensure that nothing rests on your equipment's cables and that the cables are not located
where they can be stepped on or tripped over.
 Ensure that all cables are connected to the appropriate connectors. Some connectors have
a similar appearance and may be easily confused (for example, do not plug a telephone
cable into the network connector).
 Do not place your equipment in a closed-in wall unit or on a bed, sofa, or rug.
 Keep your device away from radiators and heat sources.
 Keep your equipment away from extremely hot or cold temperatures to ensure that it is used
within the specified operating range.
 Do not push any objects into the air vents or openings of your equipment. Doing so can
cause fire or electric shock by shorting out interior components.
 Avoid placing loose papers underneath your device. Do not place your device in a closed-in
wall unit, or on a soft, fabric surface such as a bed, sofa, carpet, or a rug.

- 4 -
When operating your equipment:
 Do not use your equipment in a wet environment, for example, near a bath tub, sink, or
swimming pool or in a wet basement.
 Do not use AC powered equipment during an electrical storm. Battery powered devices may
be used if all cables have been disconnected.
 Do not spill food or liquids on your equipment.
 Before you clean your equipment, disconnect it from the electrical outlet. Clean your device
with a soft cloth dampened with water. Do not use liquids or aerosol cleaners, which may
contain flammable substances.
 Clean the monitor display with a soft, clean cloth and water. Apply the water to the cloth,
then stroke the cloth across the display in one direction, moving from the top of the display
to the bottom. Remove moisture from the display quickly and keep the display dry.
 Long-term exposure to moisture can damage the display. Do not use a commercial window
cleaner to clean your display.
 If your equipment does not operate normally - in particular, if there are any unusual sounds
or smells coming from it - unplug it immediately and contact an authorized dealer or service
center.
Protecting Against Electrostatic Discharge
Electrostatic discharge (ESD) events can harm electronic components inside your equipment. Under
certain conditions, ESD may build up on your body or an object, such as a peripheral, and then
discharge into another object, such as your computer. To prevent ESD damage, you should
discharge static electricity from your body before you interact with any of your equipment’s internal
electronic components, such as a memory module. You can protect against ESD by touching a metal
grounded object (such as an unpainted metal surface on your computer’s I/O panel) before you
interact with anything electronic. When connecting a peripheral (including handheld digital assistants)
to your equipment, you should always ground both yourself and the peripheral before connecting it. In
addition, as you work inside the equipment, periodically discharge any static charge your body may
have accumulated.
You can also take the following steps to prevent damage from electrostatic discharge:
 When unpacking a static-sensitive component from its shipping carton, do not remove the
component from the antistatic packing material until you are ready to install the component.
Just before un wrapping the antistatic package, be sure to discharge static electricity from
your body.
 When transporting a sensitive component, first place it in an antistatic container or
packaging.
 Handle all electrostatic sensitive components in a static-safe area. If possible, use antistatic
floor pads and work bench pads.

- 5 -
1.2 SAFETY: General Power Safety
Observe the following guidelines when connecting your equipment to a power source:
 Check the voltage rating before you connect the equipment to an electrical outlet to ensure
that the required voltage and frequency match the available power source.
 Do not plug the equipment power cables into an electrical outlet if the power cable is
damaged
 Norway and Sweden: If this product is provided with a 3-prong power cable, connect the
power cable to a grounded electrical outlet only.
 If you use an extension power cable, ensure that the total ampere rating of the products
plugged in to the extension power cable does not exceed the ampere rating of the extension
cable.
 If you must use an extension cable or power strip, ensure the extension cable or power strip
is connected to a wall power outlet and not to another extension cable or power strip. The
extension cable or power strip must be designed for grounded plugs and plugged into a
grounded wall outlet.
 If you are using a multiple-outlet power strip, use caution when plugging the power cable into
the power strip. Some power strips may allow you to insert a plug incorrectly. Incorrect
insertion of the power plug could result in permanent damage to your equipment, as well as
risk of electric shock and/or fire. Ensure that the ground prong of the power plug is inserted
into the mating ground contact of the power strip.
 Be sure to grasp the plug, not the cable, when disconnecting equipment from an electric
socket.
If your equipment uses an AC adapter:
 Use only the Dell provided AC adapter approved for use with this device. Use of another AC
adapter may cause a fire or explosion.
 NOTE: Refer to your system rating label for information on the proper adapter model
approved for use with your device.
 Place the AC adapter in a ventilated area, such as a desk top or on the floor, when you use
it to run the computer or to charge the battery. Do not cover the AC adapter with papers or
other items that will reduce cooling; also, do not use the AC adapter inside a carrying case.
 The AC adapter may become hot during normal operation of your computer. Use care when
handling the adapter during or immediately after operation.
 It is recommended that you lay the adapter on the floor or desk so that the green light is
visible. This will alert you if the adapter should accidentally go off due to external effects. If
for any reason the green light goes off, disconnect the AC power cord from the wall for a
period of ten seconds, and then reconnect the power cord.
 Japan Only: Use only the Dell-provided AC power cable with the AC adapter. Use of any
other power cable may damage the device or AC adapter or may present risk of fire or
electric shock.

- 6 -
2. Disassembly SOP
Preparation before disassemble
1. Clean the room for disassemble
2. Identify the area for monitor
3. Check the position that the monitors be placed and the quantity of the monitor; prepare the area for
material flow; according to the actual condition plan the disassemble layout
4. Prepare the implement, equipment, material as bellow:
1) Working table
2) Screw-driver
3) Glove
4) Cleaning cloth
5) ESD protection
I
tem
P
icture
Operation
Tool
Notes
1
To remove the stand:
1. Place the monitor on a
soft cloth or cushion
2. Press and hold the
stand release button
3. Press and lift the cover
latch to release and
remove the cover
2
1. Unlock 2 RC base
screws and 4 RC
screws to disassemble
Rear Cover
Screw
-driver
Torsion
RC screw:
9±1 kg
Torsion
RC base
Screw:
4.5±0.5kg

- 7 -
3
1. Use hands or scraper
bar and follow the
sequency to
disassemble Rear
Cover from Middle
Frame
Scraper bar
4
1. Disassemble LENS
BD from Middle Frame
2. Unplug CTRL BD FFC
from LENS BD
3. Tear off “MYLAR SHD
VESA” from Main SHD
and unplug CTRL FFC
from I/F BD

- 8 -
4
4. Tear off “MYLAR SHD
SOC” from Main SHD
and unplug USB FFC
from SOC BD
5. Take off Rear Cover
from Middle Frame
6. Tear off an acetate
tape from “Mylar SHD
MCU” and Middle
Frame
7. Tear off all mylars
from Main SHD

- 9 -
5
1. Tear off an acetate
tape from Main SHD
(See Green mark)
2. Tear off 3 conductive
tapes from Main SHD
to disassemble “SPS
BD wire” from Middle
Frame (See Orange
mark)
3. Unplug “SPS BD wire”
from SPS BD, I/F BD,
MCU BD and TBT BD
(See Red Mark)
4. Unlock screw*10 to
disassemble Main
SHD from Panel (See
Blue mark)
5. Unplug FAN wire from
I/F BD
6. Take off Main SHD
from Panel
Screw-
driver
Torsion
MF screw:
4.0-4.5 kg

- 10 -
6
1. Tear off 2 yellow tapes
from SOC BD
2. Unplug “CALIBRATOR
FFC” from SOC BD
(See Green mark)
3. Unplug “CALIBRATOR
Color Wire” from SOC
BD (See Blue mark)
4. Unplug “CALIBRATOR
Black Wire” from SOC
BD (See Red mark)
5. Tear off the tapes from
CALIBRATOR wires
and Panel
6. Take out all
CALIBRATOR wires
from the hole of Main
SHD

- 11 -
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)
Screw-
driver
Torsion of
PCBA
screw: 5.0-
5.5 kg

- 12 -
8
1. Unlock 1 grounding
screw
2. Disassemble “AC
Wire” from “ASSY
BKT PLATE”
3. Unlock PCBA screw*5
to disassemble SPS
BD from “ASSY BKT
PLATE”
Screw-
driver
Torsion of
PCBA
screw: 5.0-
5.5 kg
9
1. Unplug “MCU BD
FFC” from I/F BD
2. Tear off a tape from
EDP wire and TBT BD
3. Unplug “TBT BD FFC”
and “EDP wire” from
“TBT BD”
Screw-
driver
Torsion of
PCBA
screw: 5.0-
5.5 kg

- 13 -
10
1. Tear off a yellow tape
from “SOC wire” and
I/F BD (See White
mark)
2. Unplug “SOC wire”
and “SOC Backlight
wire” from I/F BD
3. Tear off a tape from
“EDP FFC” (See
Green mark)
4. Unplug “Thermal
Sensor FFC” and
“EDP FFC” from I/F
BD (See Pink mark)
5. Disassemble “Spacer”
from I/F BD (See Blue
mark)
6. 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”
7. Tear off a tape from
EDP wire and I/F BD
(See Yellow mark)
8. Unplug “TBT BD FFC”
and “EDP wire” from
I/F BD
Screw-
driver
Torsion of
PCBA
screw: 5.0-
5.5 kg
Torsion of
Bolt:
5.0-5.5 kg
Note:
Insert
“Thermal
Sensor
FFC” and
“EDP FFC”
through the
hole of
“ASSY BKT
PLATE”
while
disassembli
ng “ASSY
BKT
PLATE”
from Panel

- 14 -
3. Assembly SOP
Preparation before assemble
1. Clean the room for work
2. Identify the area for material
3. Prepare the implement, equipment, material as bellow:
1) Working table
2) Screw-driver
3) Glove
4) Cleaning cloth
ESD protection
Item
Picture
Operation
Tools
Notes
1
1. Insert “TBT BD FFC” and
“EDP wire” into I/F BD
2. Adhere a tape to fix EDP wire
on I/F BD (See Yellow mark)
3. Assemble I/F BD to “ASSY
BKT PLATE” and lock 2 Bolts
(See Orange mark) and 2
PCBA screws (See Red mark)
to fix I/F BD
4. Assemble “Spacer” on I/F BD
(See Blue mark)
5. Insert “Thermal Sensor FFC”
and “EDP FFC” into I/F BD
(See Pink mark), then, adhere
a tape to fix “EDP FFC” (See
Green mark)
6. Insert “SOC wire” and “SOC
Backlight wire” into I/F BD
7. Paste a yellow tape to fix
“SOC wire” on I/F BD (See
White mark)
Screw-
driver
Torsion of
PCBA
screw:
5.0-5.5 kg
Torsion of
Bolt:
5.0-5.5 kg

- 15 -
2
1. Insert “TBT BD FFC” and
“EDP wire” into “TBT BD”
2. Adhere a tape to fix EDP wire
on TBT BD
3. Insert “MCU BD FFC” into I/F
BD
Screw-
driver
Torsion of
PCBA
screw:
5.0-5.5 kg
3
1. Assemble SPS BD to “ASSY
BKT PLATE” and fix it by
PCBA screws*5
2. Assemble “AC Wire” to “ASSY
BKT PLATE”
3. Lock 1 grounding screw
Screw-
driver
Torsion of
PCBA
screw:
5.0-5.5 kg

- 16 -
4
1. Assemble “Short Spacer” on
SOC BD (See Pink mark)
2. Assemble “SOC BD” to I/F BD
and lock 2 PCBA screws to fix
“SOC BD” (See Red mark)
3. Insert “SOC wire” into “SOC
BD” and adhere a yellow tape
to fix it on “SOC BD” (See
Purple mark)
4. Insert “SOC Backlight wire”
into “SOC BD”
5. Insert “TBT BD Wire” into
“TBT BD” and “SOC BD” (See
Blue mark)
6. Insert “SPS BD to LED DRV
BD Wire” into SPS BD and
LED DRV BD (See Orange
mark)
7. Use the clips to address “SPS
BD to LED DRV BD Wire”
(See Yellow mark)
Screw-
driver
Torsion of
PCBA
screw:
5.0-5.5 kg
5
1. Insert all CALIBRATOR wires
through the hole of Main SHD
2. Adhere a conductive tape to
fix “CALIBRATOR Black Wire”
3. Adhere a conductive tape to
fix “CALIBRATOR Color Wire”
4. Adhere “CALIBRATOR FFC”
on Panel and paste a
conductive tape to fix it on
Middle Frame
5. Adhere a long acetate tape to
fix all CALIBRATOR wires
Main SHD
Align Main SHD to
adhere long tape
Dress wires within
the width of hole
(
Note: Wires cannot
be crossed)
Align Middle Frame
to adhere tape
CALIBRATOR Black
Wire
CALIBRATOR Color
Wire

- 17 -
6
6. Insert “CALIBRATOR Black
Wire” into the 2 connectors on
the left side of SOC BD (See
Red mark)
7. Insert “CALIBRATOR Color
Wire” into the 2 connectors on
the right side of SOC BD (See
Blue mark)
8. Insert “CALIBRATOR FFC” to
SOC BD (See Green mark)
9. 9. Adhere 2 yellow tapes to fix
wires on SOC BD
7
1. Insert FAN wire into I/F BD
2. Place Main SHD on Panel and
fix it by screw *10 (See Blue
mark)

- 18 -
8
1. Insert “SPS BD wire” into SPS
BD, I/F BD, MCU BD and TBT
BD (See Red Mark)
2. Dress “SPS BD wire” under
Middle Frame and adhere 3
conductive tapes to fix it on
Main SHD (See Orange mark)
3. Adhere an acetate tape to fix
“SPS BD wire” on Main SHD
(See Green mark)
9
1. Adhere mylars to Main SHD
2. Adhere an acetate tape on
“Mylar SHD MCU” and Middle
Frame to fix “SPS BD wire”
(See Yellow mark”)

- 19 -
10
1. Insert CTRL FFC into I/F BD
(See Blue mark)
2. Insert USB FFC into SOC BD
(See Yellow mark)
3. Adhere “MYLAR SHD VESA”
and “MYLAR SHD SOC
on Main SHD
4. Insert CTRL BD FFC to LENS
BD
5. Assemble LENS BD to Middle
Frame

- 20 -
11
1. Assemble Rear Cover to
Middle Frame
2. Lock 4 RC screws and 2 RC
base screws to fix Rear Cover
Screw-
driver
Torsion
RC screw:
9±1 kg
Torsion
RC base
Screw:
4.5±0.5kg
12
1. Insert the stand base blocks
fully into the stand slot
2. Lift the screw handle and turn
the screw clockwise
3. After tightening the screw, fold
the screw handle flat within
the recess
13
Attach the stand assembly to the
monitor:
a. Fit the two tabs on the upper
part of the stand to the groove on
the back of the monitor
b. Press the stand down till it
snaps into place