Dell S2721DGF Service Manual

Dell 27 Gaming Monitor

-S2721DGF

User’s Guide

Model: S2721DGF

Regulatory model: S2721DGFt

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.

Copyright © 2020 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks

are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.

2020 – 07     

Rev. A00

Contents

Safety instructions . . . . . . . . . . . . . . .5

About your monitor . . . . . . . .		. . .	. . . . 6
Package contents . . . . . . . . . .		. . .	. . .		. 6
Product features					8
Identifying parts and controls					9
Front view					9
Back view	. . . . . . . . . . . .	. . . .	. . . .		. 10
Bottom view . . . . . . . . . . . . . .		. . . .	. . .	.	11
Monitor specifications					12
Resolution specifications . . . . . . . . .		. . . .	. . . .		13
Preset display modes					14
Electrical specifications . . . . . . . . . .		. . . .	. . .	.	15
Physical characteristics . . . . . . . . . .		. . . .	. . .	.	15
Environmental characteristics . . . . . . . .		. . . .	. . .	.	16
Power management modes . . . . . . . .		. . . .	. . . .		. 17
Pin assignments . . . . . . . . . . . .		. . . .	. . . .		. 18
Plug-and-Play . . . . . . . . . . .		. . .	. . .	.	21
LCD monitor quality and pixel policy . . .		. . .	. . .	. 21
Ergonomics . . . . . . . . . . . .		. . .	. . .		22
Handling and moving your display					24
Maintenance guidelines . . . . . . . .		. . .	. . .		25
Cleaning your monitor . . . . . . . . . .		. . . .	. . . .		.25

Setting up the monitor . . . . . . . . . .	. .	. 26
Connecting the stand . . . . . . . . . . . .	. .	.	26
Using the tilt, swivel, and vertical extension . . . .	. .	.	29

Contents

|        3

Tilt, swivel and vertical extension . . . . . . . . . . . . . .	.29
Rotating the Display	29
Configuring the display settings on your computer after
rotation	30
Connecting your monitor . . . . . . . . . . . . .	. 31
Organizing your cables . . . . . . . . . . . . . .	33
Securing your monitor using Kensington lock (optional) . .	33
Removing the monitor stand . . . . . . . . . . . .	34
Wall mounting (Optional) . . . . . . . . . . . . .	. 35
Requirements to view or play HDR content	36

Operating the monitor . . . . . . . . . . . .	.	37
Power on the monitor . . . . . . . . . . . . . .	.	37
Using the joystick control . . . . . . . . . . . .	.	. 37
Using the rear-panel controls . . . . . . . . . . .	.	38
Using the On-Screen Display (OSD) Menu . . . . . .	.	. 40
Accessing the menu system . . . . . . . . . . . . . . .	.	.40
OSD warning messages . . . . . . . . . . . . . . . .	.	. 52
Locking the rear-panel control buttons . . . . . . . . . . .	.	.54
Setting the maximum resolution		55
Troubleshooting . . . . . . . . . . . . . . . .56
Self-test . . . . . . . . . . . . . . . . . .	.	. 56
Built-in diagnostics . . . . . . . . . . . . . .	.	. 58
Common Problems		59
Product specific problems . . . . . . . . . . . .	.	61
Universal Serial Bus (USB) specific problems . . . . .	.	62
Appendix . . . . . . . . . . . . . . . . . . 63
FCC notices (U.S. only) and other regulatory information		63
Contacting Dell . . . . . . . . . . . . . . . .	.	63
Outline Dimension . . . . . . . . . . . . . .	. 64

4      |

Contents

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.

•Place the monitor on a solid surface and handle it carefully. The screen is fragile and can be damaged if dropped or hit sharply.

•Always be sure that your monitor is electrically rated to operate with the AC power available in your location.

•Keep the monitor in room temperature. Excessive cold or hot conditions can have an adverse effect on the liquid crystal of the display.

•Do not subject the monitor to severe vibration or high impact conditions. For example, do not place the monitor inside a car trunk.

•Unplug the monitor when it is going to be left unused for an extended period of time.

•To avoid electric shock, do not attempt to remove any cover or touch the inside of the monitor.

For information on safety instructions, see the Safety, Environmental, and Regulatory Information (SERI).

Safety instructions

|        5

About your monitor

Package contents

Your monitor ships with the components shown in the table below. If any component is missing, contact Dell. For more information, see Contact Dell.

NOTE: Some components may be optional and may not ship with your monitor. Some features may not be available in certain countries.

Display

Stand riser

Stand base

Power cable (varies by country)

USB 3.0 upstream cable (enables the

USB ports on the monitor)

6        |

About your monitor

DisplayPort cable (DisplayPort to DisplayPort)

HDMI cable

•Quick Setup Guide

•Safety, Environmental, and Regulatory Information

About your monitor

|        7

Product features

The Dell S2721DGF monitor has an active matrix, Thin-Film Transistor (TFT), Liquid Crystal Display (LCD), and LED backlight. The monitor features include:

•68.47 cm (27 in.) viewable area (Measured diagonally) 2560 x 1440 (16:9) resolution, plus full-screen support for lower resolutions.

•Wide viewing angles with 98% DCI-P3 color gamut.

•Tilt, swivel, pivot and vertical extension adjustment capabilities.

•Removable pedestal stand and Video Electronics Standards Association (VESA™) 100 mm mounting holes for flexible mounting solutions.

•Ultra-thin bezel minimizes the bezel gap during multi-monitor usage, enabling easier set up with an elegant viewing experience.

•Extensive digital connectivity with DP helps future-proof your monitor.

•Plug and play capability if supported by your computer.

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

•Game enhanced features such as Timer, Frame Rate Counter and Dark Stabilizer in addition to enhanced game modes such as FPS, MOBA/RTS, SPORTS, or RPG , and 3 additional game modes to personalize your preferences.

•Power and OSD buttons lock.

•Security lock slot.

•0.3 W standby power when in the sleep mode without USB cable.

•AMD FreeSync™ Premium Pro for Tear free, stutter free, low latency HDR gaming.

•VESA DisplayHDR™ 400.

•Premium Panel Exchange for peace of mind.

•Optimize eye comfort with a flicker-free screen and ComfortView feature which minimizes blue light emission.

WARNING: The possible long-term effects of blue light emission from the monitor may cause damage to the eyes, including eye fatigue or digital eye strain. ComfortView feature is designed to reduce the amount of blue light emitted from the monitor to optimize eye comfort.

8        |

About your monitor

Identifying parts and controls

Front view

		1
Label	Description	Use
1	Power On/Off button (with LED	To turn the monitor on or off.
	indicator)

About your monitor

|        9

Back view

1

2

3

4

5

7

6

Label	Description	Use
1	VESA mounting holes (100 mm	Wall mount monitor using VESA-
	x 100 mm-behind attached	compatible wall mount kit (100 mm x 100
	VESA cover)	mm).
2	Regulatory label	Lists the regulatory approvals.
3	Stand release button	Releases stand from the monitor.
4	Joystick	Use it to control the OSD menu.
5	Function buttons	For more information, see Operating the
		Monitor.
6	Barcode, serial number, and	Refer to this label if you need to contact Dell
	Service Tag label	for technical support. The Service Tag is a
		unique alphanumeric identifier that enables
		Dell service technicians to identify the
		hardware components in your computer and
		access warranty information.
7	Cable-management slot	Use to organize cables by inserting them
		through the slot.

10        |

About your monitor

Bottom view

11

10

	1	2	3 4	5 6 7	8	9
Label	Description		Use
1	Power connector		Connect the power cable (shipped with your monitor).
2	Security lock slot		Secures monitor with security cable lock (sold
			separately).
3	HDMI port (HDMI 1)		Connect your computer with the HDMI cable (shipped
			with your monitor).
4	HDMI port (HDMI 2)		Connect your computer with the HDMI cable (shipped
			with your monitor).
5	DisplayPort		Connect your computer with the DisplayPort cable.
6	Audio line-out port		Connect speakers to playback audio through HDMI or
			DisplayPort audio channels.
			Only two-channel audio is supported.
			NOTE: The audio line-out port does not support
			headphones.
7	USB upstream port		Connect the USB cable that comes with your monitor
			to the computer. Once this cable is connected, you can
			use the USB downstream connectors on the monitor.
8, 9	USB downstream		Connect your USB peripherals such as mouse and
	ports (4)		keyboard. Port with				battery icon supports BC 1.2.
			NOTE: To use these ports, you must connect the USB
			upstream cable (shipped with your monitor) between
			the monitor and the computer.
10	Audio headphone		Connect headphone speakers.
	port
11	Stand lock		Lock the stand to the monitor using a M3 x 6 mm
			screw (screw not included).

About your monitor

|        11

Monitor specifications

Screen type	Active matrix - TFT LCD
Panel Type	In-plane switching Technology
Aspect ratio	16:9
Viewable image dimensions
Diagonal	68.47 cm (27 in.)
Active Area
Horizontal	596.74 mm (23.49 in.)
Vertical	335.66 mm (13.21 in.)
Area	200301.7 mm2 (310.47 in.2)
Pixel pitch	0.2331 mm x 0.2331 mm
Pixel per inch (PPI)	109
Viewing angle
Horizontal	178° (typical)
Vertical	178° (typical)
Brightness	400 cd/m² (typical)
Contrast ratio	1000 to 1 (typical)
Display screen coating	Anti-glare treatment of the front polarizer (3H) hard
	coating
Backlight	LED edgelight system
Response Time (Gray to	4 ms (Fast mode)
Gray)	3 ms (SuperFast mode)
	1 ms (Extreme mode)
	NOTE: In Extreme mode, slight artifacts may be
	encountered due to overdriving for fast speed and
	responsiveness. Use Super Fast/Fast mode for optimal
	front of screen experience and game play.
Color depth	1.07 billion colors
Color gamut*	98% DCI-P3
Connectivity	•1 x DisplayPort 1.4 (HDCP 1.4/HDCP 2.2)
	•2 x HDMI 2.0 (HDCP 1.4/HDCP 2.2)
	•4 x USB 3.0 downstream port
	•1 x USB 3.0 upstream port
	•1 x Audio line-out port (3.5 mm jack)
	•1 x Audio headphone port (3.5 mm jack)

12        |

About your monitor

Border width (edge of monitor to active area)

Top	7.42 mm
Left/Right	7.43 mm
Bottom	20.33 mm
Adjustability
Height adjustable stand	130 mm
Tilt	-5° to 21°
Swivel	-45° to 45°
Pivot	-90° to 90°
Cable management	Yes
Dell Display Manager (DDM)	Easy Arrange
Compatibility	and other key features
Security	Security lock slot (cable lock sold separately)

* At panel native only, under Custom Mode preset.

Resolution specifications

Resolution specifications	HDMI	DisplayPort
Horizontal scan range	30 kHz to 230 kHz	30 kHz to 250 kHz
Vertical scan range	48 Hz to 144 Hz	48 Hz to 165 Hz
Maximum preset resolution	2560 x 1440 at 144 Hz	2560 x 1440 at 165 Hz
Video display capabilities	480i, 480p, 576i, 576p, 720p, 1080i, 1080p
(HDMI & DP alternate
mode)

About your monitor

|        13

Preset display modes

Display mode	Horizontal	Vertical	Pixel	Sync polarity
	frequency	frequency	clock	(Horizontal/
	(kHz)	(Hz)	(MHz)	Vertical)
VESA 720 x 400	31.469	70.087	28.322	-/+
VESA 640 x 480	31.469	59.94	25.175	-/-
VESA 640 x 480	37.5	75	31.5	-/-
VESA 800 x 600	37.879	60.317	40	+/+
VESA 800 x 600	46.875	75	49.5	+/+
VESA 1024 x 768	48.363	60.004	65	-/-
VESA 1024 x 768	60.023	75.029	78.75	+/+
VESA 1152 x 864	67.5	75	108	+/+
VESA 1280 x 800	49.702	59.8	83.5	-/+
VESA 1280 x 1024	64	60	108	+/+
VESA 1280 x 1024	79.976	75.025	135	+/+
VESA 1600 x 1200	75	60	162	-/+
VESA 1680 x 1050	65.92	59.95	146.25	+/+
VESA 1920 x 1080	67.5	60	148.5	-/+
VESA 1920 x 1080	135	120	297	+/+
VESA 1920 x 1200	74.56	59.89	193.25	-/+
VESA 2048 x 1152	72	60	162	+/-
VESA 2560 x 1080	66.66	60	185.581	+/-
VESA 2560 x 1440	88.8	60	241.5	+/-
VESA 2560 x 1440	182.996	120	497.75	+/-
VESA 2560 x 1440	222.192	144	592	+/-
VESA 2560 x 1440	244.32	165	645	+/-
(DisplayPort 1.4 only)

14        |

About your monitor

Electrical specifications

Video input signals	•Digital video signal for each differential line
	Per differential line at 100 ohm impedance
	•DP/HDMI signal input support
Input voltage/ frequency/current	100-240 VAC / 50 or 60 Hz ± 3 Hz / 1.6 A
	(maximum)
Inrush current	120 V: 30 A (Max.)
	240 V: 60 A (Max.)
Physical characteristics
Connector type	•One DisplayPort
	•Two HDMI 2.0 ports
	•One audio line-out port
	•One headphone port
	•Four USB 3.0 downstream ports
	•One USB 3.0 upstream port
Signal cable type	•DisplayPort to DisplayPort 1.8 m cable
	•HDMI 1.8 m cable
	•USB 3.0 1.8 m cable
Dimensions (with stand)
Height (extended)	523.9 mm (20.63 in.)
Height (compressed)	393.9 mm (15.51 in.)
Width	611.6 mm (24.08 in.)
Depth	200.3 mm (7.89 in.)
Dimensions (without stand)
Height	363.6 mm (14.31 in.)
Width	611.6 mm (24.08 in.)
Depth	67.8 mm (2.67 in.)
Stand dimensions
Height (extended)	416.9 mm (16.41 in.)
Height (compressed)	369.2 mm (14.54 in.)
Width	275.9 mm (10.86 in.)
Depth	200.3 mm (7.89 in.)

About your monitor

|        15

Weight
Weight with packaging	9.7 kg (21.4 lb)
Weight with stand assembly and	7.0 kg (15.4 lb)
cables
Weight without stand assembly	4.5 kg (9.9 lb)
(For wall mount or VESA mount
considerations - no cables)
Weight of stand assembly	2.1 kg (4.6 lb)

Environmental characteristics

Compliant Standards

•RoHS Compliant

•BFR/PVC Free monitor (excluding external cables)

•Arsenic-Free glass and Mercury-Free for the panel only

Temperature

Operating	0°C to 40°C (32°F to 104°F)
Non-operating	–20°C to 60°C (–4°F to 140°F)
Humidity
Operating	10% to 80% (non-condensing)
Non-operating	5% to 90% (non-condensing)
Altitude
Operating	5,000 m (16,404 ft) (maximum)
Non-operating	12,192 m (40,000 ft) (maximum)
Thermal dissipation	307.09 BTU/hour (maximum)
	109.19 BTU/hour (typical)

16        |

About your monitor

Power management modes

If you have VESA’s DPM-compliant video 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.

VESA	Horizontal	Vertical			Video	Power	Power
modes	sync	sync				indicator	consumption
Normal	Active	Active			Active	White	90 W (maximum)**
operation							32 W (typical)
Active-off	Inactive	Inactive			Off	White	Less than 0.3 W
mode						(Glowing)
Switch off	-	-			-	Off	Less than 0.3 W
Power Consumption Pon				28.17 W
Total Energy Consumption (TEC)				87.62 kWh

The OSD operates only in the normal operation mode. If you press any button in the active-off mode, the following message is displayed:

Dell 27 Gaming Monitor

No DP signal from your device.

Press any key on the keyboard or move the mouse or wake it up.

If there is no display, press the monitor button again to select the correct input source.

S2721DGF

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

**Maximum power consumption with maximum luminance, and USB active.

This document is informational only and reflects laboratory performance. Your product may perform differently, 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.

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

NOTE:

Pon: Power consumption of On Mode measured with reference to Energy

Star test method.

About your monitor

|        17

TEC: Total energy consumption in kWh measured with reference to Energy Star test method.

Pin assignments

DisplayPort

Pin	20-pin side of the	Pin	20-pin side of the
number	connected signal cable	number	connected signal cable
1	ML3(n)	11	GND
2	GND	12	ML0(p)
3	ML3(p)	13	CONFIG1
4	ML2(n)	14	CONFIG2
5	GND	15	AUX CH (p)
6	ML2(p)	16	GND
7	ML1(n)	17	AUX CH (n)
8	GND	18	Hot Plug Detect
9	ML1(p)	19	Return
10	ML0(n)	20	DP_PWR

18        |

About your monitor

HDMI port

Pin	19-pin side of the	Pin	19-pin side of the
number	connected signal cable	number	connected signal cable
1	TMDS DATA 2+	11	TMDS CLOCK SHIELD
2	TMDS DATA 2 SHIELD	12	TMDS CLOCK-
3	TMDS DATA 2-	13	CEC
4	TMDS DATA 1+	14	Reserved (N.C. on device)
5	TMDS DATA 1 SHIELD	15	DDC CLOCK (SCL)
6	TMDS DATA 1-	16	DDC DATA (SDA)
7	TMDS DATA 0+	17	DDC/CEC Ground
8	TMDS DATA 0 SHIELD	18	+5 V POWER
9	TMDS DATA 0-	19	HOT PLUG DETECT
10	TMDS CLOCK+

About your monitor

|        19

Universal Serial Bus (USB)

This section gives you information about the USB ports available on your monitor.

NOTE: Up to 2 A on USB downstream port (port with battery icon) with BC 1.2 compliance devices; up to 0.9 A on the other 2 USB downstream ports.

Your monitor has the following USB ports:

•1 upstream port

•4 downstream - 4 at bottom

Power Charging Port - the ports with battery icon supports fast current charging capability if the device is BC 1.2 compatible.

NOTE: The monitor’s USB ports work 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.

Transfer speed	Data rate	Maximum power consumption (each port)
SuperSpeed	5 Gbps	4.5 W
Hi-Speed	480 Mbps	2.5 W
Full speed	12 Mbps	2.5 W

20        |

About your monitor