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Dell S2421H Simplified Service Manual

Dell S2421H
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Product Announcement:
This product is certificated to meet RoHS
Directive and Lead-Free produced definition.
Using approved critical components only is
recommended when the situation to replace
defective parts. Vender assumes no liability
express or implied, arising out of any unauthorized
modification of design or replacing non-RoHS
parts. Service providers assume all liability.
Qualified Repairability:
Proper service and repair is important to the safe,
reliable operation of all series products. The
service providers recommended by vender should
be aware of notices listed in this service manual in
order to minimize the risk of personal injury when
perform service procedures. Furthermore, the
possible existed improper repairing method may
damage equipment or products. It is recommended
that service engineers should have repairing
knowledge, experience, as well as appropriate
product training per new model before performing
the service procedures.
NOTICE:
! To avoid electrical shocks, the products should be
connected to an authorized power cord, and turn
off the master power switch each time before
removing the AC power cord.
! To prevent the product away from water or
expose in extremely high humility environment.
! To ensure the continued reliability of this
product, use only original manufacturers
specified parts.
! To ensure following safety repairing behavior, put
the replaced part on the components side of
PWBA, not solder side.
! To ensure using a proper screwdriver, follow the
torque and force listed in assembly and
disassembly procedures to unscrew screws.
! Using Lead-Free solder to well mounted the
parts.
! The fusion point of Lead-Free solder requested in
the degree of 220°C.
1. Important Safety Notice

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Dell S2421H Specifications

General IconGeneral
Pixel pitch0.2745 x 0.2745 mm
Screen shapeFlat
Pixel density92.56 ppi
Backlight typeLED
Display diagonal23.8 \
Display technologyLCD
Native aspect ratio16:9
Vertical scan range48 - 75 Hz
Maximum refresh rate75 Hz
Response time (fast)5 ms
Horizontal scan range30 - 83 kHz
Supported video modes480i, 480p, 576i, 576p, 720p, 1080i, 1080p
NTSC coverage (typical)72 %
Viewable size, vertical296.46 mm
Contrast ratio (typical)1000:1
Display number of colors16.78 million colors
Viewable size, horizontal527.04 mm
Display brightness (typical)250 cd/m²
Supported graphics resolutions640 x 480 (VGA), 720 x 400, 800 x 600 (SVGA), 1024 x 768 (XGA), 1152 x 864 (XGA+), 1280 x 1024 (SXGA), 1600 x 900, 1920 x 1080 (HD 1080)
AMD FreeSyncYes
Sustainability certificatesRoHS, ENERGY STAR
Audio input-
HDMI version1.4
DisplayPorts quantity0
Product colorGray
Front bezel colorBlack
Heavy metals freeHg (mercury)
Market positioningBusiness
RMS rated power6 W
Tilt angle range-5 - 21 °
Panel mounting interface100 x 100 mm
Cables includedAC, HDMI
AC input voltage120 - 230 V
Power supply typeInternal
AC input frequency50 - 60 Hz
Energy efficiency scaleA to G
Power consumption (max)30 W
Annual energy consumption21 kWh
Power consumption (standby)0.2 W
Power consumption (typical)13.1 W
Operating altitude0 - 5000 m
Non-operating altitude0 - 12192 m
Storage temperature (T-T)-20 - 60 °C
Operating temperature (T-T)0 - 40 °C
Storage relative humidity (H-H)5 - 90 %
Operating relative humidity (H-H)10 - 80 %
Package depth619 mm
Package width134.87 mm
Package height394.97 mm
Harmonized System (HS) code85285210
Weight and Dimensions IconWeight and Dimensions
Bezel width (side)5.4 mm
Depth (with stand)152.8 mm
Width (with stand)537.8 mm
Height (with stand)412.8 mm
Weight (with stand)3900 g
Bezel width (bottom)20.7 mm
Depth (without stand)53.8 mm
Height (without stand)322.6 mm
Weight (without stand)3400 g

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