Dell D2020H
User’s Guide
Monitor Model: D2020H
Regulatory model: D2020Hf
Contents
About your monitor . . . . . . . . . . . . . . . . . . . . . . . . . 5
Product features . . . . . . . . . . . . . . . . . . . . . .
Identifying features and controls . . . . . . . . . . . . .
16
16
Plug and play capability . . . . . . . . . . . . . . . . . .
LCD monitor quality and pixel policy . . . . . . . . . . .
Maintenance guidelines . . . . . . . . . . . . . . . . . .
Setting up the monitor . . . . . . . . . . . . . . . . . . . . . . 17
Connecting the stand . . . . . . . . . . . . . . . . . . . 17
Operating your monitor . . . . . . . . . . . . . . . . . . . . . 21
Using the front panel controls. . . . . . . . . . . . . . . 21
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Contents
3
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . .
Self-test . . . . . . . . . . . . . . . . . . . . . . . . . .
Built-in diagnostics . . . . . . . . . . . . . . . . . . . .
Common problems . . . . . . . . . . . . . . . . . . . .
Product-speciꢀc problems . . . . . . . . . . . . . . . .
38
38
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
44
FCC notices (U.S. Only) and
other regulatory information . . . . . . . . . . . . . . .
44
Contacting Dell . . . . . . . . . . . . . . . . . . . . . .
Pin assignments . . . . . . . . . . . . . . . . . . . . . .
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4
Contents
About your monitor
Package contents
Your monitor ships with the components indicated in the table. Ensure that you
have received all the components and see Contacting Dell if anything is missing.
NOTE: Some components may be optional and may not ship with your
monitor. Some features may not be available in certain countries.
NOTE: To set up with any other stand, see the documentation that
shipped with the stand.
Component image
Component description
Monitor
Stand riser
Stand base
Power cable
VGA cable
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About your monitor
5
HDMI cable
Quick Setup Guide
Safety and Regulatory
Information
Product features
The Dell D2020H ꢀat panel display has an active matrix,Thin-Film Transistor (TFT),
Liquid Crystal Display (LCD), anti-static,and LED backlight.
The monitor features include:
49.53 cm (19.5 in.) diagonal viewable area display(measured diagonally).
1600 x 900 resolution, with full-screen support for lower resolutions.
HDMI connectivity makes it simple and easy to connect with legacy and new
systems.
Plug-and-play capability if supported by your computer.
On-Screen Display (OSD) adjustments for ease of set-up and screen optimization.
0.5 W standby power when in the sleep mode.
Security-lock slot.
Arsenic-free glass and mercury-free panel.
BFR / PVC-reduced (the circuit boards inside your monitor are made using BFR /
PVC-free laminates).
RoHS Compliant.
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6
About your monitor
Identifying features and controls
Front view
1
2
Label
Description
Function buttons
Use
1
To access the OSD menu and change
the settings if required. (For more
information, see Using the front panel
Power On/Oꢁ button
(with LED indicator)
To turn the monitor On or Oꢁ.
2
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About your monitor
7
Back view
1
2
3
4
With monitor stand
Without monitor stand
Label
Description
Use
1
Security-lock slot
To secure the monitor using a
lock (purchased separately).
Regulatory label, barcode, serial
number, and Service Tag label
List the regulatory approvals. See this
label if you need to contact Dell for
technical support. The Service Tag is a
unique alphanumeric identiꢂer that
enables Dell service technicians to
identify the hardware components in
your computer and access warranty
information.
2
3
4
Release button
Release stand from monitor.
VESA mouting holes
For ꢀexible mounting solutions.
Side view
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8
About your monitor
Bottom view, without monitor stand
1
2
3
Label
Description
Power port
Use
1
To connect the monitor power cable.
For connection to your computer using HDMI cable.
For connection to your computer using VGA cable.
2
3
HDMI port
VGA port
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9
About your monitor
Monitor speciꢀcations
Model
D2020H
Screen type
Panel type
Viewable area
Diagonal
Active matrix-TFT LCD
TN
495.3 mm (19.5 in. )
Active area:
Horizontal
Vertical
432 mm (17 in. )
239.76 mm(9.44 in. )
Area
1035.76 cm2 (160.54 in.2)
Pixel pitch
0.27 x 0.27 mm
94
Pixel per inch (PPI)
Viewing angle:
Horizontal
Vertical
90° (typical)
50° (typical)
Brightness
200 cd/m 2 (typical)
600 to 1 (typical)
Contrast ratio
Faceplate coating
Backlight
Anti-glare with 3H hard coating, Haze 25%
LED light bar system
Response time (TR+TF):
Color depth
5 ms
16.7 million colors
Color gamut
72% NSTC (CIE 1931)
Connectivity
One VGA port and one HDMI 1.4 (HDCP 1.4) port.
Security-lock slot for cable lock (optional purchase)
-5° to 21°
Security
Tilt angle
9.97 mm (Top)
Bezel width (edge of
8.35 mm (Left/Right)
9.97 mm (Bottom)
monitor to active area)
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10
About your monitor
Resolution speciꢀcations
Model
D2020H
Horizontal scan range
30 kHz to 80 kHz (automatic)
56 Hz to 76 Hz (automatic)
Vertical scan range
Maximum preset resolution 1600 x 900 at 60 Hz
Preset display modes
Display Mode
Horizontal
Frequency
(kHz)
Vertical
Frequency
(Hz)
Pixel Clock
(MHz)
Sync Polarity
(Horizontal /
Vertical)
VESA, 720 x 400
VESA, 640 x 480
VESA, 640 x 480
VESA, 800 x 600
VESA, 800 x 600
VESA, 1024 x 768
VESA, 1024 x 768
VESA, 1152 x 864
VESA, 1280 x 720
VESA, 1280 x 800
31.5
31.5
37.5
37.9
70.1
60.0
75.0
60.3
75.0
60.0
75.0
75.0
60.0
59.8
60.0
28.3
25.2
31.5
40.0
49.5
65.0
78.8
-/+
-/-
-/-
+/+
+/+
-/-
46.9
48.4
60.0
67.5
+/+
+/+
+/+
-/+
+/+
108.0
74.3
45.0
49.7
60.0
83.5
108.0
VESA, 1600 x 900
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About your monitor
11
Electrical speciꢀcations
Model
D2020H
Analog RGB: 0.7 V 5 %,
75 ohm input impedance
Video input signals
HDMI 1.4 (HDCP 1.4), 600 mV
for each diꢁerential line, 100
ohm input impedance per
diꢁerential pair
Synchronization
input signals
Separate horizontal and vertical synchronizations,
polarity-free TTL level,
SOG (Composite SYNC on green)
AC input voltage/
frequency/current
100 VAC to 240 VAC/50 Hz or 60 Hz 3 Hz/1.5 A
30 A (120 V AC Input)
60 A (240 V AC Input)
Inrush current
Physical characteristics
Model
D2020H
Signal cable type:
Analog
Digital
D-Sub (VGA), 15 pins;
HDMI, 19 pins
Dimensions (with stand):
Height
347.5 mm (13.68 in. )
468.3 mm (18.44 in. )
167.3 mm (6.59 in. )
Width
Depth
Dimensions (without stand):
Height
Width
Depth
283.9 mm (11.18 in. )
468.3 mm (18.44 in. )
45.0 mm (1.77 in. )
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12
About your monitor
Stand dimensions:
Height
139.7 mm (5.5 in.)
181.1 mm (7.13 in.)
167.3 mm (6.59 in.)
Width
Depth
Weight:
3.33 kg (7.34 lb)
2.88 kg (6.35 lb)
2.22 kg (4.89 lb)
With packaging
With stand assembly and cables
Without stand assembly and
cables
Weight of stand assembly
0.28 kg (0.62 lb)
Environmental characteristics
Model
D2020H
Temperature:
Operating
0 °C to 40 °C (32 °F to 104 °F)
Non-operating:
Storage
-20 °C to 60 °C (-4 °F to 140 °F)
-20 °C to 60 °C (-4 °F to 140 °F)
Shipping
Humidity:
Operating
10% to 80% (non-condensing)
Non-operating:
Storage
Shipping
5% to 90% (non-condensing)
5% to 90% (non-condensing)
Altitude:
Operating (maximum)
5,000 m (16,400 ft)
Non-operating (maximum) 12,192 m (40,000 ft)
Thermal dissipation
58.0 BTU/hour (maximum)
51.2 BTU/hour (typical)
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About your monitor
13
Power management modes
If you have VESA's DPM compliance graphic cards or software installed on your
computer, the monitor can automatically reduce its power consumption when not in
use. This is referred to as power save mode*. If the computer detects input from the
keyboard, mouse or other input devices, the monitor automatically resumes
functioning. The following table shows the power consumption and signaling of this
automatic power saving feature.
*Zero power consumption in oꢁ mode can only be achieved by disconnecting the
power cable from the monitor.
VESA
Horizontal sync Vertical sync Video
Power
Power
modes
indicator consumption
17 W (maximum)
15 W (typical)
Normal
operation
Active
Active
Inactive
-
Active
White
Active-off Inactive
mode
Blanked White
(Glowing)
Off
Less than 0.5 W
-
-
Less than 0.5 W
Switch oꢁ
This document is informational only and reꢀects laboratory performance. Your product
may perform diꢁerently, depending on the software, components and peripherals you
ordered and shall have no obligation to update such information.
Accordingly, the customer should not rely upon this information in making decisions
about electrical tolerances or otherwise. No warranty as to accuracy or completeness
is expressed or implied.
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14
About your monitor
The OSD functions only in the normal operation mode. When any button is pressed
in the Active-oꢁ mode, one of the following messages will be displayed:
Dell 20 Monitor
?
No HDMI Cable
The display will go into Power Save Mode in 4 minutes.
www.dell.com/D2020H
D2020H
Activate the computer and the monitor to gain access to the OSD.
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15
About your monitor
Plug and play capability
You can install the monitor in any Plug and Play-compatible system. The monitor
automatically provides the computer system with its Extended Display Identiꢂcation
Data (EDID) using Display Data Channel (DDC) protocols so the system can
conꢂgure itself and optimize the monitor settings. Most monitor installations are
automatic, you can select diꢁerent settings if desired. For more information about
changing the monitor settings, see Operating your monitor.
LCD monitor quality and pixel policy
During the LCD Monitor manufacturing process, it is normal for one or more pixels
to become ꢂxed in an unchanging state which are hard to see and do not aꢁect the
display quality or usability. For more information on Dell Monitor Quality and Pixel
Maintenance guidelines
Cleaning your monitor
WARNING: Before cleaning the monitor, unplug the monitor
power cable from the electrical outlet.
the monitor.
For best practices, follow the instructions in the list below while unpacking, cleaning
or handling your monitor:
To clean your screen, lightly dampen a soft, clean cloth with water. If possible, use a
special screen-cleaning tissue or solution suitable for the anti-static coating. Do not
use benzene, thinner, ammonia, abrasive cleaners or compressed air.
Use a lightly-dampened cloth to clean the monitor. Avoid using detergent of
any kind as some detergents leave a milky ꢂlm on the monitor.
If you notice white powder when you unpack your monitor, wipe it oꢁ with a cloth.
Handle your monitor with care as the black-colored monitor may get scratched.
To help maintain the best image quality on your monitor, use a dynamically
changing screen saver and turn oꢁ your monitor when not in use.
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16
About your monitor
Setting up the monitor
Connecting the stand
NOTE: The stand is not attached when the monitor is shipped from
the factory.
NOTE: The following procedure is applicable for the stand that shipped
with your monitor.
To attach the monitor stand:
1. Assemble the stand riser to stand base.
a. Place the monitor stand base on a stable table top.
b. Slide the monitor stand body in the correct direction down onto the
stand base until it clicks into place.
2. Attach the stand assembly to the monitor:
a. Place the monitor on a soft cloth or cushion near the edge of desk.
b. Align the stand assembly bracket to the monitor groove.
c. Insert the bracket towards monitor until it locks in place.
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Setting up the monitor
17
Connecting your monitor
WARNING: Before you begin any of the procedures in this section,
NOTE: Do not connect all cables to the computer at the same time. It
is recommended to route the cables through the cable-management
slot before you connect them to the monitor.
To connect your monitor to the computer:
1. Turn oꢁ your computer and disconnect the power cable.
2. Connect VGA or HDMI cable from your monitor to the computer.
Connecting VGA cable
Connecting HDMI cable
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18
Setting up the monitor
Removing the stand
NOTE: To prevent scratches on the screen when removing the stand,
ensure that the monitor is placed on a soft and clean surface.
NOTE: The following procedure is applicable for the stand that shipped
with your monitor.
To remove the stand:
1. Place the monitor on a soft cloth along the desk.
2. Tilt the stand downwards to access the release button.
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Setting up the monitor
19
3. Using a long screwdriver press the release button.
4. Keeping the release button pressed, pull the stand out.
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Setting up the monitor
20
Operating your monitor
Turning on the monitor
Press the
button to turn on the monitor.
Using the front panel controls
Use the control buttons at the bottom edge of the monitor to adjust the image being
displayed.
1
2
3
4
5
The following table describes the control buttons:
Control Buttons
Description
1
Use this button to choose from a list of preset modes.
Preset mode
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Operating your monitor
21
2
3
For direct access to the Brightness and
Contrast menu.
Brightness/Contrast
To launch the On-Screen Display (OSD) menu, or to
access the list of items / options of a menu item. For
more information, see Accessing the OSD menu.
Menu
Exit
To exit or return to the OSD main menu.
4
5
To turn the monitor on or oꢁ.
Solid white light indicates the monitor is turned on
and functioning normally. Blinking white light indicates
the monitor is in power save mode.
Power button
(with power-status light)
OSD controls
Use the buttons on the bottom edge of the monitor to adjust the image settings.
Control Buttons
Description
1
Use the Up button to increase values or move up in a
menu.
Up
Down
OK
2
3
Use the Down button to decrease values or move
down in a menu.
Use the OK button to conꢂrm your selection in a menu.
Use the Back button to go back to the previous menu.
4
Back
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22
Operating your monitor
Using the On-Screen Display (OSD) menu
Accessing the OSD menu
NOTE: Any changes you make are automatically saved when you move to
another menu, exit the OSD menu, or wait for the OSD menu to close
automatically.
1. Press the
button to display the OSD main menu.
Main menu for HDMI input
Dell 20 Monitor
Brightness / Contrast
Auto Adjust
Input Source
Color
75%
75%
Display
Menu
Personalize
Others
2. Press the
and
buttons to move between the setting options. As you move
from one icon to another, the option name is highlighted.
3. Press the
button once to activate the highlighted option.
and button to select the desired parameter.
4. Press
5. Press
and then use the
and
buttons, according to the indicators on the
menu, to make your changes.
6. Select the button to return to the main menu.
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Operating your monitor
23
Icon
Menu and
Submenus
Description
Brightness/
Contrast
Use this option to control the brightness or contrast settings.
Dell 20 Monitor
Brightness / Contrast
Auto Adjust
75%
Input Source
75%
Color
Display
Menu
Personalize
Others
Brightness
Brightness adjusts the luminance of the backlight.
Press the
button to increase the brightness and press the
button to decrease the brightness (min. 0; max. 100).
NOTE: Manual adjustment of brightness is disabled when
dynamic contrast is switched on.
Contrast
Adjust the brightness ꢂrst, and then adjust the contrast only
if further adjustment is necessary.
Press the
button to increase the contrast and press the
button to decrease the contrast (min. 0; max. 100).
The contrast function adjusts the degree of diꢁerence
between darkness and lightness on the screen.
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24
Operating your monitor
Use this option to activate automatic setup and adjust menu.
Auto Adjust
Dell 20 Monitor
Brightness / Contrast
Press
to adjust the screen automatically
Auto Adjust
Input Source
Color
Display
Menu
Personalize
Others
The following dialog appears on a black screen as the monitor
self-adjusts to the current input:
Auto Adjustment in Progress...
Auto Adjust allows the monitor to self-adjust to the incoming
video signal. After using Auto Adjustment, you can further tune
your monitor by using the Pixel Clock (Coarse) and Phase
(Fine) controls under Display.
NOTE: Auto Adjust does not occur if you press the button
while there are no active video input signals or attached cables.
This option is only available when you are using the analog
(VGA) connector.
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Operating your monitor
25
Use the input source menu to switch between the diꢁerent
video signals that may be connected to your monitor.
Input Source
Dell 20 Monitor
Brightness / Contrast
VGA
Auto Adjust
HDMI
Input Source
Color
Auto Select
On
Reset Input Source
Display
Menu
Personalize
Others
VGA
Push
to select the VGA input source when using
VGA connector.
Push
to select the HDMI input source when using
HDMI
HDMI connector.
Auto Select
Select Auto Select to scan for available input signals.
Reset Input
Source
Select this option to restore default input source.
Use color to adjust the color setting mode.
Color
Dell 20 Monitor
Brightness / Contrast
Preset Modes
Input Color Format
Reset Color
Standard
RGB
Auto Adjust
Input Source
Color
Display
Menu
Personalize
Others
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26
Operating your monitor
Preset Modes
When you select Preset Modes, you can choose Standard,
Warm, Cool, Custom Color from the list.
Standard: Load the monitor's default color settings. This is
the default preset mode.
NOTE: To reduce the risk of eye strain and neck/arm/back/
shoulders pain from using the monitor for long periods of time,
we suggest that you:
Set the screen about 20~28 in. (50~70 cm) from your eyes.
Blink frequently to moisten or lubricate your eyes.
Take regular 20-minute breaks every two hours.
Look away from your monitor and gaze at a distant object at
20 feet away for at least 20 seconds during the breaks.
Perform stretches to relieve tension in the neck/arm/back/
shoulders during the breaks.
Warm: Increase the color temperature. The screen appears
warmer with a red/yellow tint.
Cool: Decrease the color temperature. The screen appears
cooler with a blue tint.
Custom Color: Allows you to manually adjust the color settings.
Press th
e
and
buttons to adjust the three colors
(R, G, B) values and create your own preset color mode.
Dell 20 Monitor
Brightness / Contrast
Auto Adjust
Input Source
Color
Preset Modes
Input Color Format
Reset Color
Standard
Warm
Cool
Custom Color
Display
Menu
Personalize
Others
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Operating your monitor
27
Input Color
Format
Allow you to set the video input mode to:
RGB: Select this option if your monitor is connected to a
computer or DVD player using the HDMI cable.
YPbPr: Select this option if your DVD player supports only
YPbPr output.
Dell 20 Monitor
Preset Modes
Input Color Format
Reset Color
Brightness / Contrast
Auto Adjust
Input Source
Color
RGB
YPbPr
Display
Menu
Personalize
Others
Reset Color
Reset your monitor color settings to the factory settings.
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28
Operating your monitor
Display
Use the display to adjust image.
Dell 20 Monitor
Aspect Ratio
Wide 16:9
Brightness / Contrast
Horizontal Position
Auto Adjust
Input Source
Color
Vertical Position
Sharpness
50
Pixel Clock
Phase
Display
Menu
Reset Display
Personalize
Others
Aspect Ratio
Adjust the image ratio to Wide 16:9, 4:3 or 5:4.
Horizontal
Position
(VGA input only)
Use
or
to move image left and right.
Minimum is '0' (-). Maximum is '100' (+).
Vertical
Position
(VGA input only)
Use the
or
to move image up and down.
Minimum is '0' (-). Maximum is '100' (+).
Sharpness
This feature can make the image look sharper or softer. Use
or
to adjust the sharpness from 0 to 100.
Pixel Clock
(VGA input only)
The Pixel Clock feature enables you to adjust
image quality on your monitor to your preference.
Use
or
buttons to adjust for best image quality.
Operating your monitor
29
Phase
(VGA input only)
If satisfactory results are not obtained using the Phase
adjustment, use the Pixel Clock (coarse) adjustment and
then use Phase (ꢂne), again.
Reset Display Select this option to restore default display settings.
Menu
Select this option to adjust the settings of the OSD, such as
the languages of the OSD, the amount of time, the menu
remains on screen and so on.
Dell 20 Monitor
English
Language
Brightness / Contrast
Auto Adjust
Input Source
Color
Transparency
Timer
20
20 s
Reset Menu
Display
Menu
Personalize
Others
Language
Language options set the OSD display to one of the eight
languages (English, Spanish, French, German, Brazilian
Portuguese, Russian, Simpliꢂed Chinese, or Japanese).
Transparency Select this option to change the menu transparency by
pressing the or buttons from 0 to 100.
Timer
OSD hold time: sets the length of time the OSD will remain
active after the last time you pressed a button.
Use
or
to adjust the slider in 1 second increments,
from 5 to 60 seconds.
Reset Menu
Reset all OSD settings to the factory preset values.
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30
Operating your monitor
Personalize
Allow you to choose a feature from Shortcut key 1, Shortcut
key 2, Power Button LED or Reset Personalization, Preset
Modes or Brightness/Contrast and set it as a shortcut key.
Dell 20 Monitor
Shortcut Key 1
Preset Modes
Brightness / Contrast
Auto Adjust
Input Source
Color
Shortcut Key 2
Brightness/Contrast
On During Active
Power Button LED
Reset Personalization
Display
Menu
Personalize
Others
Shortcut Key 1 Allow you to select one of the following: Preset
Modes, Brightness/Contrast, Auto Adjust, Input
Source, Aspect Ratio, to set the shortcut key 1.
Shortcut Key 2 Allow you to select one of the following: Preset Modes,
Brightness/Contrast, Auto Adjust, Input Source, Aspect
Ratio, to set the shortcut key 2.
Power Button Allow you to set the power LED indicator On During Active
LED
or Oꢁ During Active to save energy.
Reset
Allow you to restore shortcut key to the default setting.
Personalization
Others
Dell 20 Monitor
Display Info
DDC/CI
Brightness / Contrast
Auto Adjust
Input Source
Color
On
LCD Conditioning
Service Tag
Reset Others
Factory Reset
ABCDEFG
Display
Menu
Personalize
Others
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Operating your monitor
31
Display Info
Press to display the information about the display.
Dell 20 Monitor
Model: Dell D2020H
Display Info
DDC/CI
Brightness / Contrast
Auto Adjust
Input Source
Color
Input Source: HDMI
Current: 1600x900, 60Hz
LCD Conditioning
Service Tag
Reset Others
Factory Reset
Display
Menu
Personalize
Others
DDC/CI
DDC/CI (Display Data Channel/Command Interface) allows you
to adjust the monitor settings using software on your computer.
Select Oꢁ to turn oꢁ this feature.
Enable this feature for best user experience and optimum
performance of your monitor.
Dell 20 Monitor
Display Info
Brightness / Contrast
On
DDC/CI
Auto Adjust
Input Source
Color
LCD Conditioning
Service Tag
Reset Others
Factory Reset
Display
Menu
Personalize
Others
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32
Operating your monitor
LCD
Conditioning
Help reduce minor cases of image retention. Depending on
the degree of image retention, the program may take some
time to run. To start LCD Conditioning, select On.
Dell 20 Monitor
Display Info
Brightness / Contrast
DDC/CI
Auto Adjust
On
LCD Conditioning
Service Tag
Input Source
Color
Reset Others
Factory Reset
Display
Menu
Personalize
Others
Service Tag
Display the Service Tag number of the monitor.
Dell 20 Monitor
Display Info
Brightness / Contrast
On
DDC/CI
Auto Adjust
Input Source
Color
LCD Conditioning
Service Tag
Reset Others
Factory Reset
ABCDEFG
Display
Menu
Personalize
Others
Reset all settings under the Others setting
Reset Others
menu to the factory default.
Factory Reset Reset all settings to the factory default.
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Operating your monitor
33
NOTE: Your monitor has a built-in feature to automatically
calibrate the brightness to compensate for LED aging.
Before the DDC/CI function is disabled, the following message is displayed.
Dell 20 Monitor
The function of adjusting display setting using PC application
will be disabled.
Do you wish to disable DDC/CI function?
Yes
No
D2020H
When the monitor enters Power Save Mode, the following message appears.
Dell 20 Monitor
Entering Power Save Mode.
D2020H
If VGA or HDMI cable is not connected, a ꢀoating dialog box as shown below
appears. The monitor will enter Power Save Mode after 4 minutes if left in this state.
Dell 20 Monitor
?
No VGA Cable
The display will go into Power Save Mode in 4 minutes.
www.dell.com/D2020H
D2020H
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34
Operating your monitor
Setting up your monitor
Setting display resolution to 1600 x 900
For best performance, set the display resolution to 1600 x 900 pixels by performing the
following steps:
In Windows 7:
1. Right-click on the desktop and click Screen Resolution.
2. Click the drop-down menu of the Screen Resolution and select 1600 x 900.
3. Click OK.
In Windows 8 or Windows 8.1:
1. Select the Desktop tile to switch to classic desktop.
2. Right-click on the desktop and click Screen Resolution.
3. Click the drop-down menu of the Screen Resolution and select 1600 x 900.
4. Click OK.
In Windows 10:
1. Right-click on the desktop and click Display Settings.
2. Click Advanced Display Settings.
3. Click the drop-down menu under Resolution and select 1600 x 900
4. Click Apply.
If you do not see the recommended resolution as an option, you may need to update your
graphics driver. Use one of the following methods to update the graphics driver:
Dell computer
for your graphics card.
2. After installing the drivers for your graphics adapter, attempt to set the resolution to
1600 x 900 again.
NOTE: If you are unable to set the resolution to 1600 x 900 please
contact Dell to inquire about a graphics adapter that supports these
resolutions.
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Operating your monitor
35
Non-Dell computer
In Windows 7:
1. Right-click on the desktop and click Personalization.
2. Click Change Display Settings.
3. Click Advanced Settings.
4. Identify your graphics controller supplier from the description at the top of the
window (e.g. NVIDIA, AMD, Intel etc.).
5. Refer to the graphic card provider website for updated driver (for example,
6. After installing the drivers for your graphics adapter, attempt to set the resolution
to 1600 x 900 again.
In Windows 8 or Windows 8.1:
1. Select the Desktop tile to switch to classic desktop.
2. Right-click on the desktop and click Personalization.
3. Click Change Display Settings.
4. Click Advanced Settings.
5. Identify your graphics controller supplier from the description at the top of the
window (e.g. NVIDIA, AMD, Intel etc.).
6. Refer to the graphic card provider website for updated driver (for example,
7. After installing the drivers for your graphics adapter, attempt to set the resolution
to 1600 x 900 again.
In Windows 10:
1. Right-click on the desktop and click Display Settings.
2. Click Advanced display settings.
3. Click Display adapter properties.
4. Identify your graphics controller supplier from the description at the top of the window
(e.g. NVIDIA, AMD, Intel etc.).
5. Refer to the graphic card provider website for updated driver (for example,
6. After installing the drivers for your graphics adapter, attempt to set the resolution to
1600 x 900 again.
NOTE: If you are unable to set the recommended resolution, please
contact the manufacturer of your computer or consider purchasing a
graphics adapter that supports the video resolution.
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36
Operating your monitor
Troubleshooting
WARNING: Before you begin any of the procedures in this section,
Self-test
Your monitor provides a self-test feature that allows you to check if your monitor is
functioning properly. If your monitor and computer are properly connected but the
monitor screen remains dark, run the monitor self-test by performing the following
steps:
1.
Turn on both your computer and the monitor.
2.
Disconnect all video cables from the monitor. This way, the computer doesn’t
have to be involved.
3.
Turn on the monitor.
If the monitor is working correctly, it detects that there is no signal and one of the
following message appears. While in self-test mode, the power LED remains white.
Dell 20 Monitor
?
No VGA Cable
The display will go into Power Save Mode in 4 minutes.
www.dell.com/D2020H
D2020H
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38
Troubleshooting
Dell 20 Monitor
?
No HDMI Cable
The display will go into Power Save Mode in 4 minutes.
www.dell.com/D2020H
D2020H
NOTE: This box also appears during normal operation, when
the video cable is disconnected or damaged.
4. Turn oꢁ your monitor and reconnect the video cable; then turn on your
computer and the monitor.
If your monitor remains dark after you reconnect the cables, check
your video controller and computer.
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Troubleshooting
39
Built-in diagnostics
Your monitor has a built-in diagnostic tool that helps you determine if any screen
abnormality you experience is an inherent problem with your monitor, or with your
computer and video card.
NOTE: You can run the built-in diagnostics only when the video
cable is unplugged and the monitor is in self-test mode.
1
Label Description
1
Button 1
To run the built-in diagnostics:
1.
Ensure that the screen is clean (no dust particles on the surface of the screen).
2.
Unplug the video cable(s) from the back of the computer or monitor. The
monitor then goes into the self-test mode.
3.
4.
5.
Press and hold Button 1 for 5 seconds. A gray screen appears.
Carefully inspect the screen for abnormalities.
Press Button 1 on the bottom of the monitor again. The color of the screen
changes to red.
6.
7.
Inspect the display for any abnormalities.
Repeat steps 5 and 6 to inspect the display in green, blue, black, white and text
screens.
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40
Troubleshooting
Common problems
The following table contains general information about common monitor problems
you might encounter and the possible solutions:
Common Symptoms
Possible Solutions
Ensure that the video cable connecting the monitor and
the computer is properly connected and secure.
Verify that the power outlet is functioning properly using any
other electrical equipment.
Ensure that the power button is pressed.
Ensure that the correct input source is selected via the
Input Source menu.
No Video/Power LED on
Increase brightness and contrast controls using the OSD.
Perform monitor self-test feature check.
Check for bent or broken pins in the video cable connector.
Run the built-in diagnostics.
Ensure that the correct input source is selected via the Input
Poor focus
Eliminate video extension cables.
Reset the monitor to Factory Settings (Factory Reset).
Change the video resolution to the correct aspect ratio.
Shaky/Jittery video
Missing pixels
Reset the monitor to Factory Settings (Factory Reset).
Check environmental factors.
Relocate the monitor and test in another room.
Cycle power On-oꢀ.
Pixel that is permanently oꢀ is a natural defect that can occur in
LCD technology.
For more information on Dell Monitor Quality and Pixel Policy,
see Dell Support site at:
Stuck-on pixels
Cycle power On-oꢀ.
Pixel that is permanently oꢀ is a natural defect that can occur in
LCD technology.
For more information on Dell Monitor Quality and Pixel Policy,
see Dell Support site at:
Brightness problems
Geometric distortion
Horizontal/Vertical lines
Reset the monitor to Factory Settings (Factory Reset).
Adjust brightness & contrast controls via OSD.
Reset the monitor to Factory Settings (Factory Reset).
Adjust horizontal & vertical controls via OSD.
Reset the monitor to Factory Settings (Factory Reset).
Perform monitor self-test feature check and determine if these
lines are also in self-test mode.
Check for bent or broken pins in the video cable connector.
Run the built-in diagnostics.
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Troubleshooting
41
Reset the monitor to factory settings ( Factory Reset).
Perform monitor self-test feature check to determine if the
scrambled screen appears in self-test mode.
Synchronization
problems
Check for bent or broken pins in the video cable connector.
Restart the computer in safe mode.
Safety related issues
Intermittent problems
Do not perform any troubleshooting step.
Contact Dell immediately.
Ensure that the video cable connecting the monitor to the
computer is connected properly and is secure.
Reset the monitor to Factory Settings (Factory Reset).
Perform monitor self-test feature check to determine if the
intermittent problem occurs in self-test mode.
Missing color
Wrong color
Perform monitor self-test feature check.
Ensure that the video cable connecting the monitor to the
computer is connected properly and is secure.
Check for bent or broken pins in the video cable connector.
Change the Color Setting Mode in the Color Settings OSD to
Graphics or Video depending on the application.
Preset Modes in Color settings OSD. Adjust R/G/B
value in Custom Color in Color settings OSD.
Change the Input Color Format to RGB or YPbPr in the Color
settings OSD.
Run the built-in diagnostics.
Image retention from a
static image left on the
monitor for a long period of
time
all times when not in use (for more information, see Power
Alternatively, use a dynamically changing screensaver.
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Troubleshooting
42
Possible Solutions
Screen image is too
small
Check the Aspect Ratio setting in the Display settings OSD.
Reset the monitor to Factory Settings (Factory Reset).
Cannot adjust the
monitor with the
buttons on the bottom
of the panel
Turn oꢀ the monitor, unplug the power cord, plug it back, and then turn on
the monitor.
No input signal when
user controls are
pressed
Check the signal source. Ensure the computer is not in standby
or sleep mode by moving the mouse or pressing any key on the
keyboard.
Check if the video cable is plugged in properly. Disconnect and
reconnect the video cable if necessary.
Reset the computer or video player.
The picture does not
ꢁll the entire screen
Due to diꢀerent video formats (aspect ratio) of DVDs, the monitor may
display in full screen.
Run the built-in diagnostics.
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Troubleshooting
43
Appendix
Safety instructions
WARNING: Use of controls, adjustments, or procedures other than
those speciꢀed in this documentation may result in exposure to
shock, electrical hazards, and/or mechanical hazards.
For information on safety instructions, see the Product Information Guide.
FCC Notices (U.S. Only) and Other Regulatory
Information
For FCC notices and other regulatory information, see the regulatory compliance
Contacting Dell
For customers in the United States, call 800-WWW-DELL (800-999-3355).
NOTE: If you do not have an active Internet connection, you can
ꢀnd contact information on your purchase invoice, packing slip,
bill, or Dell product catalog.
Dell provides several online and telephone-based support and service options.
Availability varies by country and product, and some services may not be available
in your area.
To get online Monitor support content:
1.
To contact Dell for sales, technical support, or customer service issues:
1.
2.
Verify your country or region in the Choose A Country/Region drop-down
menu at the bottom of the page.
3.
4.
5.
Click Contact Us on the left side of the page.
Select the appropriate service or support link based on your need.
Choose the method of contacting Dell that is convenient for you.
WARNING: For displays with glossy bezel, ensure to place it
correctly to avoid disturbing reꢁections from surrounding light
and bright surfaces.
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44
Appendix
Pin assignments
HDMI 19-pin connector
Pin Number Signal Assignment
1
2
TMDS DATA 2+
TMDS DATA 2 SHIELD
TMDS DATA 2-
3
4
TMDS DATA 1+
5
TMDS DATA 1 SHIELD
TMDS DATA 1-
6
7
TMDS DATA 0+
8
TMDS DATA 0 SHIELD
TMDS DATA 0-
9
10
11
12
13
14
15
16
17
18
19
TMDS CLOCK+
TMDS CLOCK SHIELD
TMDS CLOCK-
CEC
Reserved (N.C. on device)
DDC CLOCK (SCL)
DDC DATA (SDA)
DDC/CEC Ground
+5 V POWER
HOT PLUG DETECT
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46
Appendix
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