Dell U2412Mb Computer Monitor User manual

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Dell U2412Mb Computer Monitor User manual | Manualzz

Dell™ U2412M Monitor User's Guide

About Your Monitor

Setting Up the Monitor

Operating the Monitor

Troubleshooting

Appendix

 

Notes, Notices, and Cautions

NOTE: A NOTE indicates important information that helps you make better use of your computer.

CAUTION:

A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.

WARNING:

A WARNING indicates a potential for property damage, personal injury, or death.

Information in this document is subject to change without notice.

© 2011 Dell Inc. All rights reserved.

Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.

Trademarks used in this text: Dell and the DELL logo are trademarks of Dell Inc;  Microsoft a n d Windows are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries, Intel is a registered trademark of Intel Corporation in the U.S. and other countries; and ATI is a trademark of Advanced Micro Devices,

Inc. ENERGY STAR is a registered trademark of the U.S. Environmental Protection Agency. As an ENERGY STAR partner, Dell Inc. has determined that this product meets the

ENERGY STAR guidelines for energy efficiency.

Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims any proprietary interest in trademarks and trade names other than its own.

Model U2412Mb

July 2011 Rev. A00

Back to Contents Page

 

About Your Monitor

Dell™ U2412M Monitor User's Guide

Package Contents

Product Features

Identifying Parts and Controls

Monitor Specifications

Plug and Play Capability

Universal Serial Bus (USB) Interface

LCD Monitor Quality and Pixel Policy

Maintenance Guidelines

Package Contents

Your monitor ships with the components shown below. Ensure that you have received all the components and

contact Dell

if something is missing.

 

NOTE:

Some items may be optional and may not ship with your monitor. Some features or media may not be available in certain countries.

NOTE:

To set up with any other stand, please refer to the respective stand setup guide for setup instructions.

l

Monitor l

Stand l

Power Cable

  l

VGA Cable l

DVI Cable l

USB upstream cable (enables the USB ports on the monitor) l l l

Drivers and Documentation media

Quick Setup Guide

Product and Safety Information Guide

 

Product Features

The U2412M flat panel display has an active matrix, Thin-Film Transistor (TFT), Liquid Crystal Display (LCD). The monitor features include:

■ 60.96 cm (24-inch) viewable area display (measured diagonally). 1920 x 1200 resolution, plus full-screen support for lower resolutions.

■ Wide viewing angle to allow viewing from a sitting or standing position, or while moving from side-to-side.

■ Tilt, swivel, vertical extension and rotate adjustment capability.

■ Removable stand and Video Electronics Standards Association (VESA

) 100 mm mounting holes for flexible mounting solutions.

■ Plug and play capability if supported by your system.

■ On-Screen Display (OSD) adjustments for ease of set-up and screen optimization.

■ Software and documentation media includes an information file (INF), Image Color Matching File (ICM), PowerNap software application and product documentation.

■ Energy Saver feature for Energy Star compliance.

■ Security lock slot.

■ Stand lock.

■ Asset Management Capability.

■ Capability to switch from wide aspect to standard aspect ratio while maintaining the image quality.

■ EPEAT Gold Rating.

■ Halogen Reduced.

■ TCO Certified Displays.

■ PowerNap Software included (comes in the CD shipped with the monitor).

Identifying Parts and Controls

Front View

Front view

Label Description

1 Preset Modes (default, but configurable)

2 Brightness & Contrast (default, but configurable)

3 Menu

4 Exit

5 Power (with power light indicator)

Back View

Front panel controls

Back view Back view with monitor stand

Label

1

Description Use

VESA mounting holes (100 mm x 100 mm - behind attached VESA Plate)

Wall mount monitor using VESA-compatible wall mount kit (100 mm x 100 mm)

7

8

2 Regulatory label

3 Stand release button

4 Barcode serial number label

5 Security lock slot

6 Dell Soundbar mounting brackets

USB downstream ports

Cable management slot

Lists the regulatory approvals

Release stand from monitor

Refer to this label if you need to contact Dell for technical support

Secures monitor with security cable lock

Attaches the optional Dell Soundbar

Connect your USB devices

Use to organize cables by placing them through the slot

Side View

Left view

Bottom View

Right view

Bottom view Bottom view with monitor stand

4

5

2

3

Label

1

Description

AC power cord connector

DC power connector for Dell Soundbar

DisplayPort connector

DVI connector

VGA connector

6

7

8

USB upstream port

USB downstream ports

Stand lock feature

Use

Connect the power cable

Connect the power cord for the soundbar (optional)

Connect your computer DP cable

Connect your computer DVI cable

Connect your computer VGA cable

Connect the USB cable that came with your monitor to the monitor and the computer. Once this cable is connected, you can use the USB connectors on the side and bottom of the monitor

Connect your USB devices. You can only use this connector after you have connected the USB cable to the computer and USB upstream connector on the monitor

To lock the stand to the monitor using M3 x 6 mm screw (screw is not provided)

Monitor Specifications

Flat Panel Specifications

Model

Screen type

Panel type

Screen dimensions

Preset display area

Horizontal

Vertical

Pixel pitch

Viewing angle

Luminance output

Contrast ratio

Faceplate coating

Backlight

Response time

Color depth

Color gamut

U2412M

Active matrix - TFT LCD

IPS

60.96 cm (24-inches viewable image size)

518.4 (H) X 324.0 (V) mm

518.4 mm (20.3 inches)

324.0 mm (12.7 inches)

0.27 mm

178° (vertical) typical

178° (horizontal) typical

300 cd/m²(typical)

1000 to 1 (typical), 2M to 1 (typical Dynamic Contrast On)

Antiglare with hard-coating 3H

LED edgelight system

8 ms gray-to-gray (typical)

16.7 million colors

82%*

*[U2412M] color gamut (typical) is based on CIE1976 (82%) and CIE1931 (72%) test standards.

Resolution Specifications

Model

Horizontal scan range

Vertical scan range

Maximum preset resolution

U2412M

30 kHz to 83 kHz (automatic)

50 Hz to 61 Hz (automatic)

1920 x 1200 at 60 Hz

Supported Video Modes

Model

Video display capabilities (DVI & DP playback)

U2412M

480p, 576p, 720p, 1080p,

576i, 1080i

Preset Display Modes

U2412M

Display Mode

VESA, 720 x 400

VESA, 640 x 480

VESA, 800 x 600

VESA, 1024 x 768

VESA, 1280 x 1024

VESA, 1600 x 1200

Horizontal Frequency

(kHz)

31.5

31.5

37.9

48.4

64.0

75.0

Vertical Frequency (Hz) Pixel Clock (MHz) Sync Polarity (Horizontal/Vertical)

70.0

59.9

60.3

60.0

60.0

60.0

28.3

25.2

40.0

65.0

108.0

162.0

-/+

-/-

+/+

-/-

+/+

+/+

VESA, 1680 x 1050

VESA, 1920 x 1080

VESA, 1920 x 1200

64.7

66.6

74.0

59.9

59.9

60.0

119.0

138.5

154.0

+/-

+/-

-/+

Electrical Specifications

Model

Video input signals

Synchronization input signals

AC input voltage/frequency/current

Inrush current

U2412M

Analog RGB, 0.7 Volts +/- 5%, positive polarity at 75 ohm input impedance

Digital DVI-D TMDS, 600mV for each differential line, positive polarity at

50 ohm input impedance

DP 1.1a signal input support

TTL levels required and separate syncs (including Trigger points), SOG

(Composite SYNC on green)

100 to 240 VAC / 50 or 60 Hz + 3 Hz / 1.2 A (typical)

120 V : 30 A (Max)

240 V : 60 A (Max)

Physical Characteristics

Model

Connector type

U2412M

15-pin D-subminiature, blue connector; DVI-D, white connector; DP, black connector.

Digital: detachable, DVI-D, solid pins, shipped detached from the monitor

Signal cable type

Analog: attachable, D-Sub, 15pins, shipped detached from the monitor

Dimensions (with stand)

Height (extended)

Height (compressed)

Width

Depth

Dimensions (without stand)

Height 

Width

Depth

513.5 mm (20.22 inches)

398.5 mm (15.69 inches)

556.0 mm (21.89 inches)

180.3 mm (7.10 inches)

361.6 mm (14.24 inches)

556.0 mm (21.89 inches)

64.9 mm (2.56 inches)

Stand dimensions

Height (extended)

Height (compressed)

Width

400.7 mm (15.78 inches)

285.7 mm (11.25 inches)

279.8 mm (11.02 inches)

180.3 mm (7.10 inches) Depth

Weight

Weight with packaging

Front frame gloss

16.48 lbs (7.49 kg)

Weight with stand assembly and cables 13.73 lbs (6.24 kg)

Weight without stand assembly

(For wall mount or VESA mount considerations - no cables)

8.73 lbs (3.97 kg)

Weight of stand assembly 3.87 lbs (1.76 kg)

5.0 gloss unit (max.) (Black Frame)

20.0 gloss unit (max.) (Silver Frame)

Environmental Characteristics

Model

Temperature

Operating

U2412M

0 °C to 40 °C 

Non-operating

Humidity

Operating

Non-operating

Altitude

Operating

Non-operating

Thermal dissipation

Storage: -20 °C to 60 °C (-4 °F to 140 °F)

Shipping: -20 °C to 60 °C (-4 °F to 140 °F)

10% to 80% (non-condensing)

Storage: 5% to 90% (non-condensing)

Shipping: 5% to 90% (non-condensing)

3,048 m (10,000 ft) max

10,668 m (35,000 ft) max

245.66 BTU/hour (maximum)

129.66 BTU/hour (typical)

Power Management Modes

If you have VESA's DPM™ compliance display card or software installed in your PC, 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:

U2412M

VESA Modes Horizontal Sync  Vertical Sync  Video

 Active Active Normal Active operation

Active-off mode Inactive

Switch off     -

 Inactive

     -

Blanked

    -

Power Indicator Power Consumption

Blue

 

72 W (maximum) **

Amber

Off

29 W (typical)

Less than 0.5 W

Less than 0.5 W

The OSD will only function in the normal operation mode. When any button is pressed in Active-off mode, one of the following messages will be displayed:

Activate the computer and the monitor to gain access to the OSD.

NOTE:

This monitor is ENERGY STAR

®

-compliant.         

*   Zero power consumption in OFF mode can only be achieved by disconnecting the main cable from the monitor.

** Maximum power consumption with max luminance, Dell Soundbar, and USB active.

Pin Assignments

VGA Connector

Pin

Number

15-pin Side of the Connected Signal Cable

1 Video-Red  

2 Video-Green

8

9

10

11

12

13

14

15

3

4

5

6

7

Video-Blue

GND

Self-test

GND-R

GND-G

GND-B

Computer 5V/3.3V

GND-sync

GND

DDC data

H-sync

V-sync

DDC clock

DVI Connector

Pin

Number

1

2

3

4

5

13

14

15

16

17

18

19

20

21

22

23

24

10

11

12

6

7

8

9

24-pin Side of the Connected Signal Cable

TMDS RX2-

TMDS RX2+

TMDS Ground

Floating

Floating

DDC Clock

DDC Data

Floating

TMDS RX1-

TMDS RX1+

TMDS Ground

Floating

Floating

+5V/+3.3V power

Self test 

Hot Plug Detect

TMDS RX0-

TMDS RX0+

TMDS Ground

Floating

Floating

TMDS Ground

TMDS Clock+

TMDS Clock-

DisplayPort Connector

12

13

14

15

16

7

8

9

10

11

Pin

Number

1

4

5

2

3

6

17

18

19

20

20-pin Side of the Connected Signal Cable

ML0(p)

GND

ML0(n)

ML1(p)

GND

ML1(n)

ML2(p)

GND

ML2(n)

ML3(p)

GND

ML3(n)

GND

GND

AUX(p)

GND

AUX(n)

HPD

DP_PWR Return

+3.3V DP_PWR

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

Identification Data (EDID) using Display Data Channel (DDC) protocols so the system can configure itself and optimize the monitor settings. Most monitor installations are automatic; you can select different settings if desired. For more information about changing the monitor settings, see

Operating the Monitor

.

Universal Serial Bus (USB) Interface

This section gives you information about the USB ports that are available on the left side of your monitor.

NOTE:

This monitor supports High-Speed Certified USB 2.0 interface.

Transfer Speed

High speed

Full speed

Low speed

Data Rate  Power Consumption

480 Mbps  2.5W (Max, each port)

12 Mbps  2.5W (Max, each port)

1.5 Mbps  2.5W (Max, each port)

USB Upstream Connector

Pin Number 4-pin Side of the Connector

1 DMU

2

3

4

VCC

DPU

GND

USB Downstream Connector

Pin Number

1

2

3

4

4-Pin Side of the Signal Cable

VCC

DMD

DPD

GND

USB Ports

l l

1 upstream - back

4 downstream - 2 on the back; 2 on the left side

NOTE:

 USB 2.0 functionality requires a USB 2.0

-capable computer.  

NOTE:

The monitor's USB interface works only when the monitor is on or in power save mode. If you turn off the monitor and then turn it on, the attached peripherals may take a few seconds to resume normal functionality.

  LCD Monitor Quality and Pixel Policy

During the LCD Monitor manufacturing process, it is not uncommon for one or more pixels to become fixed in an unchanging state which are hard to see and do not affect the display quality or usability. For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at: support.dell.com.

Maintenance Guidelines

Cleaning Your Monitor

WARNING: Read and follow the safety instructions  before cleaning the monitor. 

WARNING:  Before cleaning the monitor, unplug the monitor power cable from the electrical outlet. 

For best practices, follow the instructions in the list below while unpacking, cleaning, or handling your monitor: l l l l l

To clean your antistatic screen, lightly dampen a soft, clean cloth with water. If possible, use a special screen-cleaning tissue or solution suitable for the antistatic coating. Do not use benzene, thinner, ammonia, abrasive cleaners, or compressed air.

Use a lightly-dampened, warm cloth to clean the monitor. Avoid using detergent of any kind as some detergents leave a milky film on the monitor.  

If you notice white powder when you unpack your monitor, wipe it off with a cloth.

Handle your monitor with care as a darker -colored monitor may scratch and show white scuff marks more than a lighter-colored monitor.  

To help maintain the best image quality on your monitor, use a dynamically changing screen saver and turn off your monitor when not in use.

  

     

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Appendix

Dell™ U2412M Monitor User's Guide

 

  

Safety Instructions

  

FCC Notice (U.S. Only) and Other Regulatory Information

  

Contacting Dell

WARNING: Safety Instructions

WARNING: Use of controls, adjustments, or procedures other than those specified 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 website located at

www.dell.com\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 find 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 contact Dell for sales, technical support, or customer service issues:

1.

Visit support.dell.com.

2. Verify your country or region in the Choose A Country/Region drop-down menu at the bottom of the page.  

3.

Click Contact Us on the left side of the page.

4.

Select the appropriate service or support link based on your need.

 

5. Choose the method of contacting Dell that is convenient for you.

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Help on PowerNap Installation

To install PowerNap succesfully, follow these steps:-

1. Check Operating System Requirements  

2. Install Entech API

3. Install PowerNap Software  

Back to Contents Page

Windows XP, Windows Vista

®

, Windows

®

7

Install

Install

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Setting Up Your Monitor

Dell™ U2412M Monitor 

If you have a Dell™ desktop or a Dell™ portable computer with internet access

1. Go to http://support.dell.com, enter your service tag, and download the latest driver for your graphics card. 

2. After installing the drivers for your Graphics Adapter, attempt to set the resolution to 1920 x 1200 again.

NOTE: If you are unable to set the resolution to 1920 x 1200, please contact Dell™ to inquire about a Graphics Adapter that supports these resolutions.  

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Setting Up Your Monitor

Dell™ U2412M Monitor 

If you have a non Dell™ desktop, portable computer, or graphics card

In Windows XP:

1. Right-click on the desktop and click Properties.

2. Select the Settings tab.

3. Select Advanced.

4. Identify your graphics controller supplier from the description at the top of the window (e.g. NVIDIA, ATI, Intel etc.).

5. Refer to the graphic card provider website for updated driver (for example, http://www.ATI.com

OR

http://www.NVIDIA.com

).

6. After installing the drivers for your Graphics Adapter, attempt to set the resolution to 1920 x 1200 again.

In Windows Vista

®

or 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, ATI, Intel etc.).

5. Refer to the graphic card provider website for updated driver (for example, http://www.ATI.com

OR

http://www.NVIDIA.com

).

6. After installing the drivers for your Graphics Adapter, attempt to set the resolution to 1920 x 1200 again.

NOTE: If you are unable to set the resolution to 1920 x 1200, please contact the manufacturer of your computer or consider purchasing a graphics adapter that will support the video resolution of 1920 x 1200.

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Operating the Monitor

 

Dell™ U2412M Monitor User's Guide

  

Using the Front Panel Controls

  

Using the On-Screen Display (OSD) Menu

  

PowerNap Software

  

Setting the Maximum Resolution

  

Using the Dell Soundbar (Optional)

  

Using the Tilt, Swivel, and Vertical Extension

   Rotating the monitor

   Adjusting the Rotation Display Settings of Your System

Using the Front Panel

Use the control buttons on the front of the monitor to adjust the characteristics of the image being displayed. As you use these buttons to adjust the controls, an OSD shows the numeric values of the characteristics as they change.

The following table describes the front panel buttons:

Front Panel Button

1

Description

Use this button to choose from a list of preset color modes.

Shortcut key/

Preset

Modes

2

Shortcut key /

Brightness/Contrast

Use this button to directly access the "Brightness/Contrast" menu.

3

4

Menu

Use the MENU button to launch the on-screen display (OSD) and select the OSD Menu. See

Accessing the Menu

System

.

Use this button to go back to the main menu or exit the OSD main menu.

Exit

5 Use the Power button to turn the monitor on and off.

Power

 (with power light 

indicator)

The blue LED indicates the monitor is on and fully functional. An amber LED indicates power save mode.

 

Using the On-Screen Display (OSD) Menu

 

  Accessing the Menu System

NOTE:

If you change the settings and then either proceed to another menu or exit the OSD menu, the monitor automatically saves those changes. The  changes are also saved if you change the settings and then wait for the OSD menu to disappear.

1. Push the button to launch the OSD menu and display the main menu.

Main Menu for analog (VGA) input or

Main Menu for digital (DVI) input

or

Main Menu for display (DP) input

NOTE:

Auto Adjust is only available when you use the analog (VGA) connector.

2.

 

Push the and buttons to move between the setting options. As you move from one icon to another, the option name is highlighted. See the following table for a complete list of all the options available for the monitor.

3.

 

Push the  button once to activate the highlighted option. 

4.

 

Push and button to select the desired parameter.

5. Push to enter the slide bar 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.

Icon

 

Menu and

Submenus

Brightness/Contrast Use this menu to activate Brightness/Contrast adjustment.

 

Description

Brightness

Contrast

  Auto Adjust

 

 

Brightness adjusts the luminance of the backlight.

Push the button to increase brightness and push the button to decrease brightness (min 0 ~ max 100).

NOTE: Manual adjustment of Brightness is disabled when Energy Smart or Dynamic Contrast is switched on.

Adjust Brightness first, and then adjust Contrast only if further adjustment is necessary.

Push the button to increase contrast and push the button to decrease contrast (min 0 ~ max 100).

The Contrast function adjusts the degree of difference between darkness and lightness on the monitor screen.

Even though your computer recognizes your monitor on startup, the Auto Adjustment function optimizes the display settings for use with your particular setup.

Auto Adjustment 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 Settings.

  

 

NOTE:

In most cases, Auto Adjust produces the best image for your configuration.

NOTE:

Auto Adjust option is only available when you are using the analog (VGA) connector.

Input Source Use the Input Source menu to select between different video signals that may be connected to your monitor.

 

Auto Select

VGA

DVI-D

DisplayPort

Color Settings

 

 

Push to select Auto Select, the monitor will auto detect either VGA input or DVI-D input or DislpayPort input.

Select VGA input when you are using the analog (VGA) connector. Push to select the VGA input source.

Select DVI-D input when you are using the Digital (DVI) connector. Push to select the DVI input source.

Select DisplayPort input when you are using the DisplayPort (DP) connector. Push to select the DisplayPort input source.

Use Color Settings to adjust the color setting mode and color temperature.

There are different color setting sub-menus for VGA/DVI-D and Video input.

  

Input Color Format Choose the RGB option if monitor is connected to a computer or a DVD using a VGA or DVI cable. Choose the YPbPr option if monitor is connected to a DVD by a YPbPr to VGA or YPbPr to DVI cable or if the DVD color output setting is not RGB.

  

Gamma

Allows you to set the color mode to PC or MAC.

  

Preset Modes

 

When you select Preset Modes, you can choose Standard, Multimedia, Movie, Game, Text, Color Temp. or Custom Color from the list. l l l l l

Standard: Loads the monitor's default color settings. This is the default preset mode.

Multimedia: Loads color settings ideal for multimedia applications.

Movie: Loads color settings ideal for movies.

Game: Loads color settings ideal for most gaming applications.

Text: Loads brightness and sharpness settings ideal for viewing texts. l

Color Temp.: Allows you to manually adjust the color temperature. Press the and buttons to adjust the values. The screen appears warmer with a red/yellow tint when you set the slider at 5000K or cooler with a blue tint when you set the slider at 10000K.

and buttons to adjust the three colors (R, G, l

Custom Color: Allows you to manually adjust the color settings. Press the

B) values and create your own preset color mode.

 

 

  

Hue

This feature can shift the color of the video image to green or purple. This is used to adjust the desired flesh tone color. Use

to adjust the hue from '0' to '100'.

Press

Press

to increase the green shade of the video image.

to increase the purple shade of the video image.

NOTE: Hue adjustment is available only when you select Movie or Game preset mode.

Saturation

This feature can adjust the color saturation of the video image. Use

Press

Press

to increase the monochrome appearance of the video image.

to increase the colorful appearance of the video image.

or to adjust the saturation from '0' to '100'.

Reset Color Setting

s

NOTE: Saturation adjustment is available only when you select Movie or Game preset mode.

Reset your monitor color settings to the factory settings.

  Display Settings Use the Display Settings to adjust image.

 

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Setting Up Your Monitor

Dell™ U2412M Monitor 

Setting the display resolution to 1920 x 1200 (maximum)

For maximum display performance with Microsoft

®

Windows

®

operating systems, set the display resolution to 1920 x 1200 pixels by performing the following steps:

In Windows XP:

1. Right-click on the desktop and click Properties.

2. Select the Settings tab.

3. Move the slider-bar to the right by pressing and holding the left-mouse button and adjust the screen resolution to

1920 x 1200

.

4. Click OK.

In Windows Vista

®

or Windows

®

7:

1. Right-click on the desktop and click Personalization.

2. Click Change Display Settings.

3. Move the slider-bar to the right by pressing and holding the left-mouse button and adjust the screen resolution to

1920 x 1200

.

4. Click OK.

If you do not see 1920 x 1200 as an option, you may need to update your graphics driver. Please choose the scenario below that best describes the computer system you are using, and follow

1: If you have a Dell™ desktop or a Dell™ portable computer with internet access.

2: If you have a non Dell™ desktop, portable computer, or graphics card.

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Dell™ U2412M Monitor 

User Guide

Setting the display resolution to 1920 x 1200 (maximum)

Information in this document is subject to change without notice.

© 2011 Dell Inc. All rights reserved.

Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.

Trademarks used in this text: Dell and the DELL logo are trademarks of Dell Inc; Microsoft and Windows are either trademarks or registered trademarks of

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Model U2412Mb

July 2011 Rev. A00

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Setting Up the Monitor

Dell™ U2412M Monitor User's Guide

  

Attaching the Stand

  

Connecting the Monitor

  

Organizing Your Cables

  

Attaching the Soundbar (optional)

  

Removing the Stand

 

  

Wall Mounting (Optional)

Attaching the Stand

NOTE:

The stand is detached when the monitor is shipped from the factory.

NOTE:

This is applicable for a monitor with a stand. When any other stand is bought, please refer to the respective stand setup guide for set up instructions.

To attach the monitor stand:

1.

Remove the cover and place the monitor on it.

2.

Fit the two tabs on the upper part of the stand to the groove on the back of the monitor.

3.

Press the stand till it snaps into its place.

Connecting Your Monitor

WARNING:

Before you begin any of the procedures in this section, follow the

Safety Instructions

.

To connect your monitor to the computer:

1.

Turn off your computer and disconnect the power cable. 

Connect the blue (VGA) cable from your monitor to your computer.

 

NOTE:

 

If your computer supports a white DVI connector, connect the white DVI cable to the monitor and the white DVI connector on your computer.

 

NOTE:

 

Do not connect the blue VGA, the white DVI, or the black DisplayPort cables to the computer at the same time.

2.

Connect the white (digital DVI-D) or the blue (analog VGA) or the black (DisplayPort) display connector cable to the corresponding video port on the back of your computer. Do not use the three cables on the same computer.

Use all cables only when they are connected to three different computers with appropriate video systems.

Connecting the white DVI cable

Connecting the blue VGA cable

Connecting the black DisplayPort cable

CAUTION:

The graphics are used for the purpose of illustration only. Appearance of the computer may vary.

Connecting the USB cable

After you have completed connecting the DVI/VGA/DP cable, follow the procedures below to connect the USB cable to the computer and complete your monitor setup:

1.

Connect the upstream USB port (cable supplied) to an appropriate USB port on your computer. (See

bottom

view for details.)

2.

Connect USB peripherals to the downstream USB ports (side or bottom) on the monitor. (See

side

or

bottom

view for details.)

3.

Plug the power cables for your computer and monitor into a nearby outlet. 

4.

Turn on the monitor and the computer.

If your monitor displays an image, installation is complete. If it does not display an image, see

Solving Problems

.

5.

Use the cable slot on the monitor stand to organize the cables.

Organizing Your Cables

 

After attaching all necessary cables to your monitor and computer, (See

Connecting Your Monitor

 for cable attachment,)  organize all cables as shown above.

Attaching the Soundbar (Optional)

CAUTION:

Do not use with any device other than the Dell Soundbar. 

NOTE:

 

The Soundbar power connector (+12 V DC output) is for the optional Dell Soundbar only.

To attach the Soundbar:

1.

Working from the back of the monitor, attach the Soundbar by aligning the two slots with the two tabs along the bottom of the monitor.

2. Slide the Soundbar to the left until it snaps into place.

3.  Connect the Soundbar with the DC power connector.

4. Insert the mini stereo plug from the back of the Soundbar into the computer's audio output jack.

Removing the Stand

NOTE:

To prevent scratches on the LCD screen while removing the stand, ensure that the monitor is placed on a soft, clean surface.

NOTE:

This is applicable for a monitor with a stand. When any other stand is bought, please refer to the respective stand setup guide for set up instructions.

To remove the stand:

1.

Place the monitor on a flat surface.

2.

Press and hold the stand release button.

3.

Lift the stand up and away from the monitor.

  Wall Mounting (Optional)

(Screw dimension: M4 x 10 mm).

Refer to the instructions that come with the VESA-compatible wall mounting kit.

1. Place the monitor panel on a soft cloth or cushion on a stable, flat table.

2. Remove the stand.

3. Use a Philips crosshead screwdriver to remove the four screws securing the plastic cover.

4. Attach the mounting bracket from the wall mounting kit to the monitor.

5. Mount the monitor on the wall by following the instructions that came with the wall mounting kit.

NOTE:

For use only with UL Listed Wall Mount Bracket with minimum weight/load bearing capacity of 4.52 kg.

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Troubleshooting

Dell™ U2412M Monitor User's Guide

  

Self-Test

  

Built-in Diagnostics

  

Common Problems

  

Product Specific Problems

  

Universal Serial Bus Specific Problems

  

Dell Soundbar Problems

WARNING:

Before you begin any of the procedures in this section, follow the

Safety Instructions

.

  Self-Test

Your monitor provides a self-test feature that allows you to check whether 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 off both your computer and the monitor.

2.

Unplug the video cable from the back of the computer. To ensure proper Self-Test operation, remove all Digital (white connector) and the Analog (blue connector) cables from the back of computer.

3.

Turn on the monitor.

The floating dialog box should appear on-screen (against a black background) if the monitor cannot sense a video signal and is working correctly.

While in self-test mode, the power LED remains green. Also, depending upon the selected input, one of the dialogs shown below will continuously scroll through the screen.

or

1.

This box also appears during normal system operation if the video cable becomes disconnected or damaged.

2.

Turn off your monitor and reconnect the video cable; then turn on both your computer and the monitor.

If your monitor screen remains blank after you use the previous procedure, check your video controller and computer, because your monitor is functioning properly.

  Built-in Diagnostics

Your monitor has a built-in diagnostic tool that helps you determine if the screen abnormality you are experiencing 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.

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.

Press and hold Button 1 and Button 4 on the front panel simultaneously for 2 seconds. A gray screen appears.

4.

Carefully inspect the screen for abnormalities.

5.

Press Button 4 on the front panel again. The color of the screen changes to red.

6.

Inspect the display for any abnormalities.

7.

Repeat steps 5 and 6 to inspect the display in green, blue, black and white screens.

The test is complete when the white screen appears. To exit, press Button 4 again.  

If you do not detect any screen abnormalities upon using the built-in diagnostic tool, the monitor is functioning properly. Check the video card and computer.

Common Problems

The following table contains general information about common monitor problems you might encounter and the possible solutions:

Common Symptoms

No Video/Power LED off

What You Experience

No picture

No Video/Power LED on

Poor Focus

Shaky/Jittery Video

Missing Pixels

Stuck-on Pixels

Brightness Problems

Geometric Distortion

No picture or no brightness

Picture is fuzzy, blurry, or ghosting

Wavy picture or fine movement

LCD screen has spots

LCD screen has bright spots

Picture too dim or too bright

Screen not centered correctly l l l l

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 depressed fully.

Ensure that the correct input source is selected via the

Input Source Select

button. l l l l l

Increase brightness & contrast controls via 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 Source Select

button. l l l l l

Perform Auto Adjust via OSD.

Adjust the Phase and Pixel Clock controls via OSD.

Eliminate video extension cables.

Reset the monitor to Factory Settings.

Change the video resolution to the correct aspect ratio (16:10). l l l l l

Perform Auto Adjust via OSD.

Adjust the Phase and Pixel Clock controls via OSD.

Reset the monitor to Factory Settings.

Check environmental factors.

Relocate the monitor and test in another room. l l l

Cycle power on-off.

Pixel that is permanently off 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:

support.dell.com. l l l

Cycle power on-off.

Pixel that is permanently off 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:

support.dell.com. l l l

Reset the monitor to Factory Settings.

Auto Adjust via OSD.

Adjust brightness & contrast controls via OSD. l l l

Reset the monitor to Factory Settings.

Auto Adjust via OSD.

Adjust horizontal & vertical controls via OSD.

Horizontal/Vertical Lines

Synchronization Problems

Safety Related Issues

Intermittent Problems

Missing Color

Wrong Color

Image retention from a static image left on the monitor for a  long period of time

Screen has one or more lines

NOTE:

When using DVI-D input, the positioning adjustments are not available. l l l l l l

Reset the monitor to Factory Settings.

Perform Auto Adjust via OSD.

Adjust Phase and Pixel Clock controls via OSD.

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.

Screen is scrambled or appears torn

NOTE:

When using DVI-D input, the Pixel Clock and Phase adjustments are not available. l l l l l l

Reset the monitor to Factory Settings.

Perform Auto Adjust via OSD.

Adjust Phase and Pixel Clock controls via OSD.

Perform monitor self-test feature check to determine if the scrambled screen appears in self-test mode.

Check for bent or broken pins in the video cable connector.

Restart the computer in the safe mode.

Visible signs of smoke or sparks

Monitor malfunctions on & off l l

Do not perform any troubleshooting steps.

Contact Dell immediately.

Picture missing color l l l

Ensure that the video cable connecting the monitor to the computer is connected properly and is secure.

Reset the monitor to Factory Settings.

Perform monitor self-test feature check to determine if the intermittent problem occurs in self-test mode. l l l

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.

Picture color not good

Faint shadow from the static image displayed appears on the screen l l l l

Change the Color Setting Mode in the Color Settings OSD to Graphics or Video depending on the application.

Try different Color Preset Settings in Color Settings OSD. Adjust R/G/B value in Color

Settings OSD if the Color Management is turned off.

Change the Input Color Format to PC RGB or YPbPr in the Advance Setting OSD.

Run the built-in diagnostics. l l

Use the Power Management feature to turn off the monitor at all times when not in use

(for more information, see

Power Management Modes

).

Alternatively, use a dynamically changing screensaver.

Product Specific Problems

Specific Symptoms

Screen image is too small

What You Experience

Image is centered on screen, but does not fill entire viewing area

Cannot adjust the monitor with OSD does not appear on the the buttons on the front panel screen

No input signal when user controls are pressed

No picture, the LED light is blue l l

Possible Solutions

Check the Scaling Ratio setting in Image Setting OSD

Reset the monitor to Factory Settings. l l

Turn off the monitor, unplug the power cord, plug it back, and then turn on the monitor.

Check whether the OSD menu is locked. If yes, press and hold the button above the

Power button for 10 seconds to unlock (for more information, see

Menu Lock

). l l l

Check the signal source. Ensure the computer is not in the power saving mode by moving the mouse or pressing any key on the keyboard.

Check whether the signal cable is plugged in properly. Re -plug the signal cable if necessary.

Reset the computer or video player.

The picture does not fill the entire screen.

The picture cannot fill the height or width of the screen l l

Due to different video formats (aspect ratio) of DVDs, the monitor may display in full screen.

Run the built-in diagnostics.

NOTE:

When choosing DVI-D mode, the Auto Adjust function will not be available.

Universal Serial Bus (USB) Specific Problems

Specific Symptoms

USB interface is not working

What You Experience

USB peripherals are not working

High Speed USB 2.0 interface is High Speed USB 2.0 slow.

peripherals working slowly or not working at all l l l l l l

Possible Solutions

Check that your monitor is turned ON.

Reconnect the upstream cable to your computer.

Reconnect the USB peripherals (downstream connector). 

Switch off and then turn on the monitor again.

Reboot the computer.

Some USB devices like external portable HDD require higher electric current; connect the device directly to the computer system. l l l l l

Check that your computer is USB 2.0-capable.

Some computers have both USB 2.0 and USB 1.1 ports. Ensure that the correct USB port is used.  

Reconnect the upstream cable to your computer.

Reconnect the USB peripherals (downstream connector). 

Reboot the computer.

Dell™ Soundbar Problems

Common Symptoms

No Sound

No Sound

What You Experience

No power to Soundbar - the power indicator is off

Soundbar has power - power indicator is on l l

Possible Solutions

Turn the Power/Volume knob on the Soundbar clockwise to the middle position; check if the power indicator (Blue LED) on the front of the Soundbar is illuminated.

Confirm that the power cable from the Soundbar is plugged into the adapter. l l l l l l

Plug the audio line-in cable into the computer's audio out jack.

Set all Windows volume controls to their maximum.

Play some audio content on the computer (i.e. audio CD, or MP3).

Turn the Power/Volume knob on the Soundbar clockwise to a higher volume setting.

Clean and reseat the audio line-in plug.

Test the Soundbar using another audio source (i.e. portable CD player).

Distorted Sound

Distorted Sound

Unbalanced Sound Output

Low Volume

Computer's sound card is used as the audio source

Other audio source is used

Sound from only one side of

Soundbar

Volume is too low l l l l l l l l

Clear any obstructions between the Soundbar and the user.

Confirm that the audio line-in plug is completely inserted into the jack of the sound card.

Set all Windows volume controls to their midpoints.

Decrease the volume of the audio application.

Turn the Power/Volume knob on the Soundbar counter-clockwise to a lower volume setting.

Clean and reseat the audio line-in plug.

Troubleshoot the computer's sound card.

Test the Soundbar using another audio source (i.e. portable CD player). l l l l l

Clear any obstructions between the Soundbar and the user.

Confirm that the audio line-in plug is completely inserted into the jack of the audio source.

Decrease the volume of the audio source.

Turn the Power/Volume knob on the Soundbar counter-clockwise to a lower volume setting.

Clean and reseat the audio line-in plug. l l l l l l

Clear any obstructions between the Soundbar and the user.

Confirm that the audio line-in plug is completely inserted into the jack of the sound card or audio source.

Set all Windows audio balance controls (L-R) to their midpoints.

Clean and reseat the audio line-in plug.

Troubleshoot the computer's sound card.

Test the Soundbar using another audio source (i.e. portable CD player). l l l l l

Clear any obstructions between the Soundbar and the user.

Turn the Power/Volume knob on the Soundbar clockwise to the maximum volume setting.

Set all Windows volume controls to their maximum.

Increase the volume of the audio application.

Test the Soundbar using another audio source (i.e. portable CD player).

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Key Features

  • Business 61 cm (24") LED IPS
  • Full HD 1920 x 1200 pixels 16:10
  • 8 ms 300 cd/m² 1000:1
  • 38 W

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