Dell UltraSharp U2412M User Manual

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Tr oubleshoot in g
Dell™ U lt r a Sha rp U 2 4 1 2 M / U2 4 1 2 MW h Mon it or U se r ' s Guid e
Self- Test
Built - in Diagnostics
Com m on Problem s
Product Specific Problem s
Univer sal Serial Bus Specific Problem s
Dell Soun dbar Problem s
W ARN I N G: Befor e y ou begin any of t he procedur es in this sect ion, follow t he Safet y I nst r uct ions.
Self- Te st
Your m onit or pr ovides a self- test feat ure t hat allows you t o check whet her your m onit or is funct ioning proper ly. I f your m onit or and com put er are pr operly connect ed but t he m onitor screen r em ains dark, ru n t he m onit or self- t est by perform ing t he follow ing st eps:
1. Turn off bot h y our com put er and t he m onit or .
2. Unplug t he v ideo cable f rom t he back of t he com put er . To ensur e pr oper Self- Test operat ion, rem ove all Digit al ( w hit e connect or ) and t he Analog ( blue connect or ) cables fr om t he back of com put er.
3. Turn on t he m on it or.
The floating dialog box should appear on- scr een ( against a black back gr ound) if t he m onit or can not sense a video signal and is w ork ing correctly. While in self- test m ode, t he power LED rem ains green. Also, depending upon t he select ed input , one of t he dialogs shown below
will cont inuously scr oll t hrough t he screen.
or or
1. This box also appears during norm al system operat ion if the video cable becom es disconnect ed or dam aged.
2. Turn off your m onit or an d reconnect t he video cable; t hen t u rn on bot h y our com put er and t he m on it or.
I f y our m onitor screen r em ains blank aft er you use t he prev ious pr ocedure, check your v ideo cont r oller and com put er, because your m onit or is funct ioning properly.
Built - in Diagnost ics
Your m onit or has a built - in diagnost ic t ool t hat helps you det erm ine if t he screen abnor m alit y you are experiencing is an inherent pr oblem wit h y our m onitor, or w it h your com put er and video card.
N OTE: You can run t he built - in diagnostics only w hen the video cable is unplugged and t he m onit or is in self - t est m ode.

Dell UltraSharp U2412M Specifications

General

3D	No
Pixel pitch	0.270 x 0.270 mm
Aspect ratio	16:10
Response time	8 ms
Display diagonal	24 \
Display resolution	1920 x 1200 pixels
Display technology	LED
Contrast ratio (dynamic)	2000000:1
Contrast ratio (typical)	1000:1
Display number of colors	16.78 million colors
Display brightness (typical)	300 cd/m²
Supported graphics resolutions	1920 x 1200 (WUXGA)
On/off switch	Yes
Placement supported	Horizontal/Vertical
Number of products included	1 pc(s)
DVI-I ports quantity	-
USB Type-A downstream ports quantity	0
Certification	EPEAT Gold
Product color	Black
Market positioning	Business
LED indicators	Power
Panel mounting interface	- mm
Input current	1.2 A
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (max)	72 W
Power consumption (standby)	0.5 W
Power consumption (typical)	38 W
Power consumption (PowerSave)	17.3 W
Operating altitude	0 - 3048 m
Storage temperature (T-T)	-20 - 60 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 90 %
Operating relative humidity (H-H)	10 - 80 %
Cables included	AC, DVI, USB, VGA
Sustainability certificates	ENERGY STAR

Weight and Dimensions

Depth (with stand)	180.3 mm
Height (with stand)	513.5 mm
Depth (without stand)	64.9 mm
Width (without stand)	556 mm
Height (without stand)	361.6 mm
Weight (without stand)	3970 g