Dell ST2420L User Manual Download Page 17 | Manualshive

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2. Attach the stand assembly to the monitor.

a. Place the monitor on a soft cloth or cushion near the edge of desk.

b. Align the stand assembly bracket to the monitor groove.

c. Insert the bracket towards monitor until it locked in place.

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Summary of Contents for ST2420L

Page 1: ...nc is strictly forbidden Trademarks used in this text Dell and the DELL logo are trademarks of Dell Inc Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and or other countries 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 disclaim...

Page 2: ... subject to change without notice 2010 2013 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 othe...

Page 3: ...Capability LCD Monitor Quality 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 Monitor with Stand Power Cable ...

Page 4: ... Features The ST2420L ST2421L flat panel display has an active matrix Thin Film Transistor TFT and Liquid Crystal Display LCD The monitor features include ST2420L ST2421L 60 97cm 24 inches viewable area display 1920 x 1080 resolution plus full screen support for lower resolutions Tilt adjustment capability ...

Page 5: ...ge Color Matching File ICM and product documentation Security lock slot Identifying Parts and Controls Front View Front View Front Panel Controls Label Description 1 2 Shortcut keys The default settings are Preset Modes and Brightness Contrast 1 Shortcut key Preset Modes Default 2 Shortcut key Brightness Contrast Default 3 OSD menu select 4 EXIT 5 Power On Off light indicator below Dell logo Back ...

Page 6: ...Dell for technical support 2 Security lock slot To help secure your monitor 3 Dell Soundbar mounting brackets To attach the optional Dell Soundbar 4 Regulatory rating label Lists the regulatory approvals 5 Stand release button To release stand assembly from monitor Side View ...

Page 7: ... Left Side Bottom View Bottom view Label Description ...

Page 8: ...ther input devices is detected by the computer the monitor will automatically wake up The following table shows the power consumption and signaling of this automatic power saving feature ST2420L ST2421L VESA Modes Horizontal Sync Vertical Sync Video Power Indicator Power Consumption Normal operation Active Active Active White 30 W maximum 20 W typical Active off mode Inactive Inactive Blanked Ambe...

Page 9: ...pin Side of the Connected Signal Cable 1 Video Red 2 Video Green 3 Video Blue 4 GND 5 Self test 6 GND R 7 GND G 8 GND B 9 Computer 5V 3 3V 10 GND sync 11 GND 12 DDC data 13 H sync 14 V sync 15 DDC clock DVI Connector ...

Page 10: ...6 DDC Clock 7 DDC Data 8 Floating 9 TMDS RX1 10 TMDS RX1 11 TMDS Ground 12 Floating 13 Floating 14 5V power 15 Self test 16 Hot Plug Detect 17 TMDS RX0 18 TMDS RX0 19 TMDS Ground 20 Floating 21 Floating 22 TMDS Ground 23 TMDS Clock 24 TMDS Clock HDMI Connector Pin Number 19 pin Side of the Connected Signal Cable ...

Page 11: ...IELD 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 Flat Panel Specifications Model ST2420L ST2421L Screen type Active matrix TFT LCD Panel type TN Screen dimensions 60 97cm 24 inches 24 inch viewable image size Preset display area Horizontal Vertical 531 36 mm 20 92 inches 298 89 mm 11 77 inches ...

Page 12: ...sed on estimation ST2420L ST2421L Color Gamut Typical is based on CIE1976 88 and CIE1931 72 Resolution Model ST2420L ST2421L 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 Video Supported Modes Model ST2420L ST2421L Video display capabilities HDMI playback 480i 480p 576i 576p 720p 1080i 1080p Preset Displ...

Page 13: ...put impedance Digital DVI D TMDS 600mV for each differential line positive polarity at 50 ohm 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 input voltage frequency current 100 to 240 VAC 50 or 60 Hz 3 Hz 2 0A Ma...

Page 14: ...203 68 mm 8 02 inches Depth 203 68 mm 8 02 inches Weight Weight with packaging 5 75 kg 12 68 lb Weight with stand assembly and cables 4 29 kg 9 46 lb Weight of stand assembly 0 64 kg 1 41 lb Environmental Model ST2420L ST2421L Temperature Operating 0 to 40 C 32 to 104 F Non operating Storage 20 to 60 C 4 to 140 F Shipping 20 to 60 C 4 to 140 F Humidity Operating 10 to 80 non condensing Non operati...

Page 15: ...sability A display with 1 to 5 fixed pixels is considered normal and within competitive standards For more information see Dell Support site at support dell com Maintenance Guidelines Caring for Your Monitor CAUTION Read and follow the Safety Instructions before cleaning the monitor CAUTION Before cleaning the monitor unplug the monitor from the electrical outlet For best practices follow the inst...

Page 16: ...ing the Monitor Stand Attaching the Base NOTE The stand riser and stand base are detached when the monitor is shipped from the factory 1 Assemble the stand riser to stand base a Place the stand riser on top of the stand base Slide the stand riser horizontally until the tabs are fully inserted into the stand base grooves b Tighten the thumbscrew below the stand base ...

Page 17: ...tand assembly to the monitor a Place the monitor on a soft cloth or cushion near the edge of desk b Align the stand assembly bracket to the monitor groove c Insert the bracket towards monitor until it locked in place ...

Page 18: ...f your computer and disconnect the power cable 2 Connect the HDMI cable white digital DVI D or blue analog VGA display connector cable to the corresponding video port on the back of your computer Do not use all the cables on the same computer Use all of the cables only when they are connected to different computers with appropriate video systems Connecting the blue VGA cable Connecting the White D...

Page 19: ... computer may vary After you have completed connecting the VGA DVI HDMI cable follow the procedure below to complete your monitor setup 1 Plug the power cables for your computer and monitor into a nearby outlet 2 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 Attaching the Soundbar Optional ...

Page 20: ...itor 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 rear of the Soundbar into the computer s audio output jack or the monitor s audio output jack NOTICE Do not use with any device other than the Dell Soundbar Removing the Monitor Stand ...

Page 21: ...cloth or cushion complete the following steps to remove the base 1 Use a long screwdriver to push the release latch located in a hole just above the stand 2 Once the latch is released remove the base away from the monitor Back to Contents Page ...

Page 22: ...lect Use this button for different display preset modes on your monitor 2 Brightness Contrast Use this button to access the Brightness Contrast control menu 3 OSD Menu Use this button to open the On Screen Display OSD See Using the OSD Menu 4 Exit Use this button to exit the OSD menu 5 Power button Use the power button to turn the monitor on and off The white light indicates that the monitor is on...

Page 23: ...tment is necessary Press the button to increase contrast and press the button to decrease contrast min 0 max 100 The Contrast function adjusts the degree of difference between the darkest and lightest areas on the monitor screen Press the button to go back to or exit the main menu Auto Adjust Even though your computer recognizes your monitor on startup the Auto Adjustment function optimizes the di...

Page 24: ... increase or decrease each of the three colors R G B independently in single digit increments from 0 to 100 Mode suitable for movie playback Mode suitable for game applications Mode suitable for sports scenes Mode suitable for nature scenes This feature can make the video image color shift from green to purple Use this feature to adjust the skin tone Use or buttons to adjust the hue from 0 to 100 ...

Page 25: ...ents allow you to adjust your monitor to your preference These settings are accessed through the main OSD menu by selecting Display Settings Use the and buttons to adjust for best image quality If satisfactory results are not obtained using the Phase adjustment use the Pixel Clock coarse adjustment and then use Phase fine again Allows you to increase the level of contrast to provide sharper and mo...

Page 26: ...ton for 10 sec Unlock function Only hard unlock Press and hold the button above power button for 10 sec DDC CI Display Data Channel Command Interface allows your monitor parameters brightness color balance etc to be adjustable using 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 If an ...

Page 27: ...addressable by this monitor The recommended mode is 1920x1080 When monitor enters Power Save mode the following message appears or Activate the computer and wake up the monitor to gain access to the OSD If you press any button other than the power button the following message will appear or If VGA DVI HDMI input is selected and both VGA DVI and HDMI cable are not connected a floating dialog box as...

Page 28: ... 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 Dell Soundbar Optional The Dell Soundbar is a ste...

Page 29: ...e back of the computer To ensure proper Self Test operation remove the Analog blue connector cable 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 the dialog shown below will continuously scroll throu...

Page 30: ...nges to red 6 Inspect the display for any abnormalities 7 Repeat steps 5 and 6 to inspect the display in green blue and white colored screens The test is complete when the white screen appears To exit press the shortcut 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 OSD Warni...

Page 31: ...diagnostics 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 brightness contrast controls via OSD Horizontal Vertical Lines Screen has one or more lines Reset the monitor to Factory...

Page 32: ...e 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 fill entire viewing area Perform monitor reset on Factory Reset Cannot adjust the monitor with the buttons on the front panel OSD does not appear on the screen Turn the monitor off and unplug the power cord and th...

Page 33: ...e audio line in plug is completely inserted into the jack of the audio source Decrease the volume of the audio source Turn the volume down Clean and reseat the audio line in plug Unbalanced Sound Output Sound from only one side of Soundbar 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 sou...

Page 34: ...ulatory_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...

Page 35: ... and adjust the screen resolution to 1920x1080 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 1920x1080 4 Click OK If you do not see 1920x1080 as an option you may need to update your graphics driver Pl...

Page 36: ...upport 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 1920x1080 again NOTE If you are unable to set the resolution to 1920x1080 please contact Dell to inquire about a Graphics Adapter that supports these resolutions Back to Contents Page ...

Page 37: ...t to set the resolution to 1920x1080 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 Please refer to the graphics card provider website for updated driver for example http www ATI c...

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