Dell??? S2740L Monitor

User's Guide

Setting the display resolution

Information in this document is subject to change without notice. ?? 2012 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 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 S2740Lb

July 2012 Rev. A00

Dell??? S2740L Monitor User's Guide

About Your Monitor

Setting Up the Monitor

Operating the Monitor

Troubleshooting

Appendix

Notes, Cautions, and Warnings

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

CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed.

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

Information in this document is subject to change without notice. ?? 2012 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 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 S2740Lb

July 2012 Rev. A00

USB Upstream Cable (enables the USB ports on the monitor)

Drivers and Documentation media

Quick Setup Guide

Product and Safety Information Guide

Product Features

The Dell Professional S2740L flat panel display has an active matrix, Thin-Film Transistor (TFT), Liquid Crystal Display (LCD) and LED backlight. The monitor features include:

???S2740L: 68.6 cm (27-inch) viewable area display (measured diagonally). 1920 x 1080 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 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), Dell Display Manager software application and product documentation.

???Energy Saver feature for Energy Star compliance.

???Security lock slot.

???Stand lock.

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

???EPEAT silver Rating.

???Dell Display Manager Software included (comes in the CD shipped with the monitor).

???Arsenic-Free glass and Mercury-Free for the panel only.

???High Dynamic Contrast Ratio (8,000,000:1).

???0.5 W standby power when in the sleep mode.

???Energy Gauge shows the energy level being consumed by the monitor in real time.

Identifying Parts and Controls

Front View

Front panel controls

Label

Description

1Function buttons (For more information, see Operating the Monitor)

2Power On/Off button (with LED indicator)

Back View

		Back View with monitor stand
Label	Description	Use
1	VESA mounting holes (100 mm x 100 mm	Wall mount monitor using VESA-compatible wall mount kit (100 mm x 100 mm).
	- behind attached VESA Plate)
2	Regulatory label	List the regulatory approvals.
3	Stand release button	Release stand from monitor.
4	Service tag label	Refer to this label to contact Dell for express service.
5	Barcode serial number label	Refer to this label if you need to contact Dell for technical support.
6	Cable management slot	Use to organize cables by placing them through the slot.

Side View

Bottom View

		Bottom view without monitor stand
Label	Description	Use
1	Audio Line-out	Connect your speakers.*
2	HDMI connector	Connect your computer HDMI cable.
3	DVI connector	Connect your computer DVI cable.
4	VGA connector	Connect your computer VGA cable.
5	DC power cord connector	Connect the power cable.
		Connect the USB cable that came with your monitor to the monitor and the
6	USB upstream port	computer. Once this cable is connected, you can use the USB connectors on

			the monitor.
7		USB downstream port	Connect your USB device.
	8	Security lock slot	Secure the monitor with a security cable lock.
9		Stand lock feature	Lock the stand to the monitor using M3 x 6 mm screw (screw is not provided).

Monitor Specifications

Flat Panel Specifications

	Model	S2740L
	Screen type	Active matrix - TFT LCD
	Panel type	IPS
	Screen dimensions	68.6 cm (27-inch diagonal viewable image size)
	Preset display area:
	Horizontal	597.9 mm (23.54 inches)
	Vertical	336.3 mm (13.24 inches)
	Pixel pitch	0.311 mm
	Viewing angle	178?? (vertical) typical
		178?? (horizontal) typical
	Luminance output	Panel 300 cd/m?? (Typ.)
		Monitor 270 cd/m?? (Typ.)
	Contrast ratio	1000 to 1 (typical)
		8M to 1 (typical Dynamic Contrast On)
	Faceplate coating	Glare with hard-coating 3H
	Backlight	LED edgelight system
	Response time	14 ms (typical)
		7 ms (typical) with Overdrive
	Color depth	16.7 million colors
	Color gamut	CIE1976 (84%)*

*S2740L color gamut (typical) is based on CIE1976 (84%) and CIE1931 (72%) test standards.

Resolution Specifications

Model	S2740L
Horizontal scan range	30 kHz to 83 kHz (automatic)
Vertical scan range	56 Hz to 76 Hz (automatic)
Maximum preset resolution	1920 x 1080 at 60 Hz

Supported Video Modes

Model	S2740L
Video display capabilities (DVI & HDMI playback)	480p, 576p, 720p, 1080p

Preset Display Modes

S2740L

Display Mode	Horizontal Frequency	Vertical Frequency (Hz)	Pixel Clock (MHz)	Sync Polarity (Horizontal/Vertical)
	(kHz)
VESA, 720 x 400	31.5	70.1	28.3	-/+
VESA, 640 x 480	31.5	60.0	25.2	-/-
VESA, 640 x 480	37.5	75.0	31.5	-/-
VESA, 800 x 600	37.9	60.3	40.0	+/+
VESA, 800 x 600	46.9	75.0	49.5	+/+
VESA, 1024 x 768	48.4	60.0	65.0	-/-
VESA, 1024 x 768	60.0	75.0	78.8	+/+
VESA, 1152 x 864	67.5	75.0	108.0	+/+
VESA, 1280 x 1024	64.0	60.0	108.0	+/+
VESA, 1280 x 1024	80.0	75.0	135.0	+/+
VESA, 1920 x 1080	67.5	60.0	148.5	+/+

Electrical Specifications

	Model		S2740L
			Analog RGB, 0.7 Volts +/- 5%, positive polarity at 75 ohm input impedance
			Digital DVI-D TMDS, 600 mV for each differential line, positive polarity at 50 ohm
	Video input signals		input impedance
			HDMI, 600mV for each differential line, 100 ohm input impedance per differential
			pair
	Synchronization input signals		Separate horizontal and vertical synchronizations, polarity-free TTL level, SOG (Composite
			SYNC on green)
	AC/DC	Input	Delta adapter ADP-40DD B: 100 VAC to 240 VAC / 50 Hz to 60 Hz + 3 Hz / 1.5 A (Max.),
		voltage/frequency/current	Lite-On adapter PA-1041-71: 100 VAC to 240 VAC / 50 Hz or 60 Hz + 3 Hz / 1.2 A (Max.)
	adapter*
		Output voltage/current	Output: 12 VDC / 3.33 A
	Inrush current		120 V : 30 A (Max)
			240 V : 60 A (Max)

*Qualified Compatible AC/DC adapters:

CAUTION: To avoid damage to the monitor, use only the adapter designed for this particular Dell monitor.

Manufacturer	Model	Polarity
Delta	ADP-40DD BA
Lite-On	PA-1041-71TP-LF

Physical Characteristics

	Model	S2740L
	Connector type	15-pin D-subminiature, blue connector; DVI-D, white connector; HDMI
		Digital: attachable, DVI-D, solid pins, shipped detached from the monitor
	Signal cable type	Digital: HDMI
		Analog: attachable, D-Sub, 15 pins, shipped detached from the monitor
	Dimensions (with stand)
	Height	458.7 mm (18.06 inches)
	Width	641.9 mm (25.27 inches)
	Depth	215.8 mm (8.50 inches)

Dimensions (without stand)

Height	380.3 mm (14.97 inches)
Width	641.9 mm (25.27 inches)
Depth	61.9 mm (2.44 inches)
Stand dimensions
Height	313.2 mm (12.33 inches)
Width	215.8 mm (8.50 inches)
Depth	215.8 mm (8.50 inches)
Weight
Weight with packaging	9.18 kg (20.24 lb)
Weight with stand assembly and cables	7.56 kg (16.67 lb)
Weight without stand assembly
(For wall mount or VESA mount	5.28 kg (11.62 lb)
considerations - no cables)
Weight of stand assembly	1.65 kg (3.64 lb)
Front frame gloss	90~100 gloss unit

Environmental Characteristics

Model	S2740L
Temperature
Operating	0 ??C to 40 ??C
Non-operating	Storage: -20 ??C to 60 ??C (-4 ??F to 140 ??F)
	Shipping: -20 ??C to 60 ??C (-4 ??F to 140 ??F)
Humidity
Operating	10% to 80% (non-condensing)
Non-operating	Storage: 5% to 90% (non-condensing)
	Shipping: 5% to 90% (non-condensing)
Altitude
Operating	5,000 m (16,404 ft) max
Non-operating	12,192 m (40,000 ft) max

Number

1 TMDS DATA 2+

2 TMDS DATA 2 SHIELD

3 TMDS DATA 2-

4 TMDS DATA 1+

5 TMDS DATA 1 SHIELD

6 TMDS DATA 1-

7 TMDS DATA 0+

8 TMDS DATA 0 SHIELD

9 TMDS DATA 0-

10 TMDS CLOCK+

11 TMDS CLOCK SHIELD

12 TMDS CLOCK-

13 CEC

14 Reserved (N.C. on device)

15 DDC CLOCK (SCL)

16 DDC DATA (SDA)

17 DDC/CEC Ground

18 +5V POWER

19 HOT PLUG DETECT

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 monitor.

NOTE: This monitor supports High-Speed Certified USB 2.0 interface.

Transfer Speed

Data

Power Consumption

	Rate
High speed	480 Mbps	2.5 W (Max, each port)
Full speed	12 Mbps	2.5 W (Max, each port)
Low speed	1.5 Mbps	2.5 W (Max, each port)

USB Upstream Connector

Pin Number 4-pin Side of the Connector

1DMU

2VCC

3DPU

4GND

USB Downstream Connector

Pin Number	4-Pin Side of the Signal Cable
1	VCC
2	DMD
3	DPD
4	GND

USB Ports

1 upstream - back

2 downstream - back

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 the 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

CAUTION: 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:

To clean your anti-static 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, 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 get scratched 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.

Back to Contents Page

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 the computer.

NOTE: If your computer supports a DVI/HDMI connector, connect the DVI/HDMI cable to the monitor and the DVI/HDMI connector to your computer. The HDMI cable can be purchased separately.

NOTE: Do not connect all cables to the computer at the same time.

2.Connect either the DVI, the HDMI, or the VGA display connector cable to the corresponding video port on the back of your computer. Do not connect all cables on the same computer. Use all cables only when they are connected to different computers with appropriate video systems.

Connecting the white DVI cable

Connecting the blue VGA cable

Connecting the HDMI 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/HDMI 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 the USB peripherals to the downstream USB ports on the monitor.

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.

Removing the Monitor 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 the set-up instructions.

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 comes with the wall mounting kit.

NOTE: For use only with UL-listed wall mount bracket with minimum weight/load bearing capacity of 5.88 kg.

Back to Contents Page

Back to Contents Page

Operating the Monitor

Dell??? S2740L Monitor User's Guide

Power On the Monitor

Using the Front Panel Controls

Using the On-Screen Display (OSD) Menu

Setting the Maximum Resolution

Using the Tilt

Power On the Monitor

Press the button to turn on the monitor

Using the Front Panel Controls

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.

1		Use the Up button to adjust (increase ranges) items in the OSD menu.
	Up
2		Use the Down button to adjust (decrease ranges) items in the OSD menu.
	Down
3		Use the OK button to confirm your selection.
	OK
4		Use the Back button to go back to the previous menu.
	Back

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. Press 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 digital (HDMI) input

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

2.Press 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.Press the button once to activate the highlighted option.

4.Press and button to select the desired parameter.

5.Press 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	Description
	Submenus
	Brightness/Contrast	Use this menu to activate Brightness/Contrast adjustment.

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 Energy Smart or Dynamic Contrast is switched On.

Contrast	Adjust the Brightness first, 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 difference between darkness and lightness on the monitor screen.

Auto Adjust	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 the different video signals that may be connected to your monitor.

	Auto Select
		Press	to select Auto Select, the monitor scans for available input sources.
	VGA
		Select the VGA input when you are using the analog (VGA) connector. Press			to select the VGA input source.
	DVI-D
		Select the DVI-D input when you are using the Digital (DVI) connector. Press			to select the DVI input source.
	HDMI
		Select the HDMI input when you are using the HDMI connector. Press		to select the HDMI input source.
	Color Settings	Use Color Settings to adjust the color setting mode.

Input Color Format Allows 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 VGA and DVI cable.

YPbPr: Select this option if your monitor is connected to a DVD player by YPbPr to VGA, or YPbPr to DVI cable; or if the DVD color output setting is not RGB.

Preset Modes	When you select Preset Modes, you can choose Standard, Multimedia, Movie, Game, Text, Warm, Cool or Custom Color from the list.
	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.
	Warm: Increase the color temperature. The screen appears warmer with a red/yellow tint.
	Cool: Decreases the color temperature. The screen appears cooler with a blue tint.
	Custom Color: Allows you to manually adjust the color settings. Press the	and	buttons to adjust the three colors (R, G, 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						or	to adjust the hue from '0' to '100'.
	Press	to increase the green shade of the video image.
	Press	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				or	to adjust the saturation from '0' to '100'.
	Press	to increase the monochrome appearance of the video image.
	Press	to increase the colorful appearance of the video image.
	NOTE: Saturation adjustment is available only when you select Movie or Game preset mode.
Demo Mode	Splits the screen into two for viewing the images under the normal and enhanced Movie preset mode side by side.
	You can also press		and	simultaneously to enable/disable this mode.
	NOTE: Demo mode is available only when you select Movie preset mode.
Image Enhance	Makes upsized images higher quality by removing image fading and roughness of edge.
	NOTE: Image Enhance is available only when you select Standard, Multimedia, Movie, or Game preset mode.

Reset Color Setting Reset your monitor color settings to the factory settings. s

Display Settings Use the Display Settings to adjust image.

Aspect Ratio	Adjusts the image ratio to Wide 16:9, 4:3, or 5:4.
Horizontal Position
	Use	or	to adjust the image left or right. Minimum is '0' (-). Maximum is '100' (+).
Vertical Position
	Use	or	to adjust the image up or down. Minimum is '0' (-). Maximum is '100' (+).
	NOTE: Horizontal Position and Vertical Position adjustments are only available for "VGA" input.
Sharpness
	This feature can make the image look sharper or softer. Use			or	to adjust the sharpness from '0' to '100'.
Pixel Clock	The Phase and Pixel Clock adjustments allow you to adjust your monitor to your preference.
	Use	or	to adjust for best image quality.
Phase	If satisfactory results are not obtained using the Phase adjustment, use the Pixel Clock (coarse) adjustment and then use Phase (fine), again.
	NOTE: Pixel Clock and Phase adjustments are only available for "VGA" input.
Dynamic Contrast	Allows you to increase the level of contrast to provide sharper and more detailed image quality.

Press the button to select the Dynamic Contrast "On" or "Off" .

		NOTE: Dynamic Contrast provides higher contrast if you select Game or Movie preset mode.
	Reset Display	Select this option to restore default display settings.
	Settings
	Other Settings	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.

Language	Language options set the OSD display to one of the eight languages (English, Spanish, French, German, Simplified Chinese or Japanese).
Menu Transparency
	Select this option to change the menu transparency by pressing the			and	buttons (Minimum: 0 ~ Maximum: 100).
Menu 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.
Menu Lock	Controls user access to adjustments. When Lock is selected, no user adjustments are allowed. All buttons are locked.
	NOTE:
	Lock function ??? Either soft lock (through the OSD menu) or hard lock (press and hold the button above the power button for 10 seconds)
	Unlock function??? Only hard unlock (press and hold the button above the power button for 10 seconds)
Energy Smart	To turn on or off dynamic dimming.
	The dynamic dimming feature automatically reduces the screen's brightness level when the displayed image contains a high proportion of bright areas.
DDC/CI	DDC/CI (Display Data Channel/Command Interface) allows your monitor parameters (brightness, color balance, and etc.) to be adjustable via the software on your computer.
	You can disable this feature by selecting "Disable".
	Enable this feature for best user experience and optimum performance of your monitor.

LCD Conditioning Helps reduce minor cases of image retention. Depending on the degree of image retention, the program may take some time to run. You can enable this feature by selecting "Enable".

	Factory Reset	Reset all OSD settings to the factory preset values.
	Personalize	Users can choose a feature from "Preset Modes", "Brightness/Contrast", "Auto Adjust", "Input Source", or "Aspect Ratio" and set it as a shortcut key.

NOTE: This monitor has a built-in feature to automatically calibrate the brightness to compensate for LED aging.

OSD Warning Messages

When the Energy Smart or Dynamic Contrast feature is enabled (in these preset modes: Game or Movie), the manual brightness adjustment is disabled.

When the monitor does not support a particular resolution mode, you will see the following message:

This means that the monitor cannot synchronize with the signal that it is receiving from the computer. See Monitor Specifications for the Horizontal and Vertical frequency ranges addressable by this monitor. Recommended mode is 1920 x 1080.

You will see the following message before the DDC/CI function is disabled:

When the monitor enters the Power Save mode, the following message appears:

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

If you press any button other than the power button, one of the following messages will appear depending on the selected input:

VGA/DVI-D/HDMI input

If either VGA, DVI-D, or HDMI input is selected and the corresponding cable is not connected, a floating dialog box as shown below appears.

or

or

It is recommended that you use the supplied power adapter. If not, you will see the message as shown below.

See Solving Problems for more information.

Setting the Maximum Resolution

To set the maximum resolution for the monitor:

Windows Vista??, Windows?? 7, Windows?? 8:

1.For Windows?? 8 only, select the Desktop tile to switch to classic desktop.

2.Right-click on the desktop and click Screen Resolution.

3.Click the Dropdown list of the Screen Resolution and select 1920 x 1080.

4.Click OK.

If you do not see 1920 x 1080 as an option, you may need to update your graphics driver. Depending on your computer, complete one of the following procedures:

If you have a Dell desktop or portable computer:

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

If you are using a non-Dell computer (portable or desktop):

Go to the support site for your computer and download the latest graphic drivers.

Go to your graphics card website and download the latest graphic drivers.

Using the Tilt

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.

Tilt

With the stand attached to the monitor, you can tilt the monitor for the most comfortable viewing angle.

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

Back to Contents Page

Back to Contents Page

Troubleshooting

Dell??? S2740L Monitor User's Guide

Self-Test

Built-in Diagnostics

In-Store Demo

Common Problems

Product Specific Problems

Universal Serial Bus (USB) Specific 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 white. Also, depending upon the selected input, one of the dialogs shown below will continuously scroll through the screen.

or

or

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

5.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, white and text screens.

The test is complete when the text 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.

In-Store Demo

To enter InStore OSD Mode

Detach/Disconnect all cables. Make sure the monitor is in ???On??? mode. Press and hold Button 2 and Button 4 for 5 seconds.

To exit InStore OSD Mode

Press the power button once. If power is cut off during demo, resume the demo after power is restored.

Common Problems

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

Common Symptoms	What You Experience	Possible Solutions
No Video/Power LED off	No picture	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 menu.

No Video/Power LED on	No picture or no brightness	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 menu.
Poor Focus	Picture is fuzzy, blurry, or ghosting	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 (16:9).
Shaky/Jittery Video	Wavy picture or fine movement	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.
Missing Pixels	LCD screen has spots	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.
Stuck-on Pixels	LCD screen has bright spots	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.
Brightness Problems	Picture too dim or too bright	Reset the monitor to Factory Settings.
		Auto Adjust via OSD.
		Adjust brightness & contrast controls via OSD.
Geometric Distortion	Screen not centered correctly	Reset the monitor to Factory Settings.
		Auto Adjust via OSD.
		Adjust horizontal & vertical controls via OSD.
		NOTE: When using DVI-D/HDMI input, the positioning adjustments are not available.
Horizontal/Vertical Lines	Screen has one or more lines	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.
		NOTE: When using DVI-D/HDMI input, the Pixel Clock and Phase adjustments are not available.
Synchronization Problems	Screen is scrambled or appears torn	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.
Safety Related Issues	Visible signs of smoke or sparks	Do not perform any troubleshooting steps.
		Contact Dell immediately.
Intermittent Problems	Monitor malfunctions on & off	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.
Missing Color	Picture missing 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.
Wrong Color	Picture color not good	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.
Image retention from a static image left on	Faint shadow from the static image	Use the Power Management feature to turn off the monitor at all times when not in use (for more information, see Power
the monitor for a long period of time	displayed appears on the screen	Management Modes).
		Alternatively, use a dynamically changing screensaver.

Product Specific Problems

Specific Symptoms	What You Experience	Possible Solutions
Screen image is too small	Image is centered on screen, but does not	Check the Scaling Ratio setting in the Image Setting OSD.
	fill entire viewing area	Reset the monitor to Factory Settings.
Cannot adjust the monitor with the buttons	OSD does not appear on the screen	Turn off the monitor, unplug the power cord, plug it back, and then turn on the monitor.
on the front panel		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).
No Input Signal when user controls are	No picture, the LED light is blue.	Check the signal source. Ensure the Computer is not in the power saving mode by moving the mouse or pressing any key on
pressed		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	Due to different video formats (aspect ratio) of DVDs, the monitor may display in full screen.
	of the 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	What You Experience	Possible Solutions
USB interface is not working	USB peripherals are not working	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.
High Speed USB 2.0 interface is slow.	High Speed USB 2.0 peripherals working	Check that your computer is USB 2.0-capable.
	slowly or not working at all	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.
Back to Contents Page

Back to Contents Page

Setting Up Your Monitor

Dell??? S2740L Monitor User's Guide

Setting the display resolution

For maximum display performance with Microsoft?? Windows?? operating systems, set the display resolution to 1920 x 1080 pixels by performing the following steps:

In Windows Vista??, Windows?? 7, Windows?? 8:

1.For Windows?? 8 only, select the Desktop tile to switch to classic desktop.

2.Right-click on the desktop and click Screen Resolution.

3.Click the Dropdown list of the Screen Resolution and select 1920 x 1080.

4.Click OK.

If you do not see the recommended resolution 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 the given steps.

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.

Back to Contents Page

Back to Contents Page

Setting Up Your Monitor

Dell??? S2740L Monitor User's Guide

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 1080 again.

NOTE: If you are unable to set the resolution to 1920 x 1080, please contact Dell??? to inquire about a graphics adapter that supports these resolutions.

Back to Contents Page

Back to Contents Page

Setting Up Your Monitor

Dell??? S2740L Monitor User's Guide

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

In Windows Vista??, Windows?? 7, Windows?? 8:

1.For Windows?? 8 only, 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, ATI, Intel etc.).

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

7.After installing the drivers for your graphics adapter, attempt to set the resolution to 1920 x 1080 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 will support the video resolution.

Back to Contents Page