Dell C6522QT User Manual Download Page 17

Page: 17 / 72

About your display | 17

Physical characteristics

Connector type

•

DP connector

•

USB Type-C connector

•

HDMI connector

•

Audio line-out

•

USB 3.1 connector

•

RJ-45 connector

•

RS232 connector

Signal cable type (in-box)

DP, 3 m cable
HDMI, 3 m cable
USB 3.1, 3 m cable
USB Type-C, 1.8 m cable

Dimensions

Height

892.92 mm (35.15 in.)

Width

1517.88 mm (59.76 in.)

Depth

78.7 mm (3.10 in.)

Weight

Weight with packaging

55.5 kgs (122.36 lb)

Weight without packaging

45.2 kgs (99.65 lb)

Summary of Contents for C6522QT

Page 1: ...Model C6522QT Regulatory model C6522QTt Dell C6522QT User s Guide ...

Page 2: ...r loss of data if instructions are not followed WARNING A WARNING indicates a potential for property damage personal injury or death Copyright 2021 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 2021 01 Rev A00 ...

Page 3: ... specifications 15 Preset display modes 15 Electrical specifications 16 Physical characteristics 17 Environmental characteristics 18 Pin assignments 19 Plug and Play 25 LCD Display Quality and Pixel Policy 25 Maintenance guidelines 25 Cleaning your display 25 Setting up the display 26 Connecting your display 26 Optiplex Optional 26 External PC connection 27 Connecting the optiplex 29 Cable managem...

Page 4: ...39 Using the OSD lock function 40 Using the On Screen Display OSD menu 41 Accessing the menu system 41 Touch OSD control 42 OSD warning messages 52 Setting the maximum resolution 56 Dell web management for displays 57 Troubleshooting 62 Self Test 62 Built in diagnostics 64 Common problems 65 Product specific problems 67 Touchscreen problems 69 Universal Serial Bus USB specific problems 70 Ethernet...

Page 5: ...ed 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 o...

Page 6: ...ts Make sure 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 display Some features may not be available in certain countries Package contents Description Display Optiplex holder Remote Control Batteries AAA x 2 ...

Page 7: ...l holder Wire Saddle x 3 Camera Wire Saddle x 3 Stylus nib x 2 Power cable varies by country Power cable for connecting Optiplex system to display see Optiplex Optional USB 3 1 upstream cable enables the USB ports on the display DP cable DP to DP ...

Page 8: ... Association VESA 400 x 400 mm mounting holes Built in speakers 2 x 20 W Plug and play capability if supported by your system On Screen Display OSD adjustments for ease of set up and screen optimization Security lock slot Supports Asset Management Capability Arsenic Free glass and Mercury Free for Panel only Wattage 0 3 standby power when in the sleep mode Easily setup with Dell Optiplex Micro PC ...

Page 9: ...1 Screen drop down touch key 2 IR Lens 3 Power on off button 4 Power LED indicator Solid white light indicates the monitor is turned on and functioning normally Blinking white light indicates the monitor is in Standby Mode 5 OSD Launcher touch key For more information see Operating the Display ...

Page 10: ...ecures Optiplex with security cable lock sold separately 5 Optiplex holder Use to hold a Micro Form Factor Optiplex PC 6 Serial number Service Tag label and Website Refer to this label if you need to contact Dell for technical support 7 Barcode serial number and Service Tag label 8 Regulatory label List of approved regulatory labels 9 AC to optiplex AC power to optiplex power adapter optional 10 A...

Page 11: ...e C cable The USB Type C port offer the fastest transfer rate USB 3 1 and the alternate mode with DP 1 2 support the maximum resolution of 3840 x 2160 at 60 Hz PD 20 V 4 5 A 15 V 3 A 9 V 3 A 5 V 3 A NOTE USB Type C is not supported on Windows versions that are prior to Windows 10 4 RS232 connector Remote management and control of display via RS232 5 Audio line out port Connect to external audio pe...

Page 12: ... 1 downstream ports 3 Connect your USB device You can only use this connector after you have connected the USB cable to the computer and USB upstream connector on the display 8 USB charging port USB 3 1 downstream port with BC 1 2 charging capability at 2A Maximum 9 RJ 45 connector Remote Network Management and control of display via RJ 45 Input sources and USB pairing Input sources USB upstream H...

Page 13: ...cal Panel brightness 350 cd m typical Contrast ratio 1300 to 1 typical Display screen coating 7H Anti Smudge Anti Glare Response Time 9 ms typical G to G Color depth 1 07 Billion colors Color gamut NTSC 72 Connectivity 1 x DP 1 2 1 x USB Type C Alternate mode with DisplayPort 1 2 Power Delivery PD up to 90 W 3 x HDMI 2 0 4 x USB 3 1 downstream port 1 x USB BC1 2 charging capability at 2 A Maximum ...

Page 14: ... or later1 20 4 0 1 0 Other Linux based OS Linux kernel 3 15 or later 20 4 1 macOS 10 10 10 11 1 mouse2 No 1 Functionality of Linux kernel has been verified on Ubuntu 14 04 and Debian 8 Functionality of Chrome OS and Android with Linux kernel 3 15 or later recommende 2 Mouse emulation in landscape mode Full multi touch requires additional drivers on the host system Touch sensor input accuracy Typ1...

Page 15: ...cal scan range 24 Hz to 75 Hz DP HDMI Maximum preset resolution 3840 x 2160 at 60 Hz Video display capabilities DP HDMI playback 480p 576p 720p 1080i 1080p 2160p Preset display modes Display Mode Horizontal Frequency kHz Vertical Frequency Hz Pixel Clock MHz Sync Polarity Horizontal Vertical 720 x 400 31 5 70 0 28 3 640 x 480 31 5 60 0 25 2 640 x 480 37 5 75 0 31 5 800 x 600 37 9 60 0 40 0 800 x 6...

Page 16: ...ode 1 350 W Maximum 2 89 3 W Pon 3 Not Applicable TEC 3 1 As defined in EU 2019 2021 and EU 2019 2013 2 Maximum brightness and contrast setting with maximum power loading on all USB ports 3 Pon Power consumption of On Mode as defined in Energy Star 8 0 version TEC Total energy consumption in kWh as defined in Energy star 8 0 version This document is informational only and reflects laboratory perfo...

Page 17: ...out USB 3 1 connector RJ 45 connector RS232 connector Signal cable type in box DP 3 m cable HDMI 3 m cable USB 3 1 3 m cable USB Type C 1 8 m cable Dimensions Height 892 92 mm 35 15 in Width 1517 88 mm 59 76 in Depth 78 7 mm 3 10 in Weight Weight with packaging 55 5 kgs 122 36 lb Weight without packaging 45 2 kgs 99 65 lb ...

Page 18: ...mperature 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 1194 25 BTU hour maximum 316 99 BTU hour On Mode ...

Page 19: ... number 20 pin side of the connected signal cable 1 ML3 n 2 GND 3 ML3 p 4 ML2 n 5 GND 6 ML2 p 7 ML1 u 8 GND 9 ML1 p 10 ML0 n 11 GND 12 ML0 p 13 CONFIG1 GND 14 CONFIG2 GND 15 AUX CH p 16 DP_Cable Detect 17 AUX CH n 18 Hot Plug Detect 19 GND 20 3 3 V DP_PWR ...

Page 20: ...C port Pin Signal Pin Signal A1 GND B12 GND A2 SSTXp1 B11 SSRXp1 A3 SSTXn1 B10 SSRXn1 A4 VBUS B9 VBUS A5 CC1 B8 SBU2 A6 Dp1 B7 Dn1 A7 Dn1 B6 Dp1 A8 SBU1 B5 CC2 A9 VBUS B4 VBUS A10 SSRXn2 B3 SSTXn2 A11 SSRXp2 B2 SSTXp2 A12 GND B1 GND ...

Page 21: ...A 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 5 V POWER 19 HOT PLUG DETECT ...

Page 22: ...22 About your display RS232 connector Pin number 9 pin side of the connected signal cable 1 Not Used 2 RX 3 TX 4 Not Used 5 GND 6 Not Used 7 Not Used 8 Not Used 9 Not Used ...

Page 23: ...About your display 23 RJ 45 connector Pin number 12 pin side of the connected signal cable 1 D 2 RCT 3 D 4 D 5 RCT 6 D 7 GND 8 GND 9 LED2_Y 10 LED2_Y 11 LED2_G 12 LED2_G ...

Page 24: ...d then turn it on the attached peripherals may take a few seconds to resume normal functionality Transfer speed Data rate Power consumption SuperSpeed 5 Gbps 4 5 W Maximum each port Hi Speed 480 Mbps 4 5 W Maximum each port Full speed 12 Mbps 4 5 W Maximum each port USB 3 1 upstream port USB 3 1 downstream port Pin number Signal name Pin number Signal name 1 VBUS 1 VBUS 2 D 2 D 3 D 3 D 4 GND 4 GND...

Page 25: ...nes Cleaning your display WARNING Before cleaning the display unplug the display power cable from the electrical outlet CAUTION Read and follow the Safety Instructions before cleaning the display For best practices follow these instructions in the list below while unpacking cleaning or handling your display To clean your anti static screen lightly dampen a soft clean cloth with water If possible u...

Page 26: ...on your display 4 Select the correct input source at Display OSD Menu and turn on your computer Optiplex Optional Attaching the optiplex Open the carton take out the Optiplex holder and accessories box Included accessories Cables Remote Control Batteries Remote control holder Stylus Wire Saddle and manual 1 2 3 1 Remove cable cover 2 Insert the Optiplex PC and power adapter into the respective com...

Page 27: ...ng up the display 27 Slide Optiplex holder back into display External PC connection Connecting the USB cable USB USB NOTE Refer to section on input source and USB pairing Connecting the HDMI cable HDMI HDMI ...

Page 28: ...28 Setting up the display Connecting the DP cable DP DP Connecting the USB Type C cable USB Type C USB Type C ...

Page 29: ...Setting up the display 29 Connecting the optiplex Connecting the HDMI cable HDMI 1 USB 1 Connecting the DP cable DP USB 3 ...

Page 30: ...OTE Cable management clips are provided in the accessory box you may use them to mange the cable s of a third party webcam or other external devices Artworks below show the suggested mounting locations for cable clips and a third party webcam with OptiPlex Top mount Clip location suggestion ...

Page 31: ...Setting up the display 31 Bottom mount Clip location suggestion ...

Page 32: ...brackets from the wall mounting kit to the display 4 Install Display to Wall Plate 5 Ensure display is mounted vertically with no tilt forward or backward and a leveler is used to assist to mount the display NOTE Do not attempt to wall mount the Touch Display by yourself It should be installed by qualified installers Recommended Wall Mount for this Display can be found in the Dell support website ...

Page 33: ...he mute function on off 10 Preset Modes Display information about Preset Modes 11 Right Press to move the selection right in OSD menu 12 OK Confirm an entry or selection 13 Exit Press to exit the Menu 14 Brightness Press to increase the Brightness 15 Volume Press to increase the Volume 1 Power On Off Switch this display on or off 2 Input Source Select input source Press or button to select from US...

Page 34: ...and signs of the battery compartment Do not mix battery types Do not combine new batteries with used ones It causes shorter life or leakage of batteries Remove the dead batteries immediately to prevent them from liquid leaking in the battery compartment Don t touch exposed battery acid as it can damage your skin NOTE If you do not intend to use the remote control for a long period remove the batte...

Page 35: ...emote control within a distance of about 7 m from remote control sensor or at a horizontal and vertical angle of within 22 5 within a distance of about 7 m NOTE The remote control may not function properly when the remote control sensor on the display is under direct sunlight or strong illumination or when there is an obstacle in the path of signal transmission 22 5 22 5 ...

Page 36: ...facturers and the independent research group If you have any reason to suspect that your product is interfering with a pacemaker or other medical device distancing the stylus away immediately and contact the manufacturer of the pacemaker or medical device for guidance Using the stylus Area for magnet When not in use place the stylus flat side on either the left or right side surface of the display...

Page 37: ...en Hold the stylus similar as to how one would hold a white board marker The bigger diameter tip is recognized as an erasing feature it works similar to how a pencil with an eraser end functions Replacing the stylus nib When the smaller diameter tip shows signs of wear and tear it can be replaced by unscrewing the front tip ...

Page 38: ...ower button to turn the display On and Off The white LED indicates the display is On and fully functional A glowing white LED indicates Standby Mode Touch OSD launcher This display comes with a touch OSD functionalities Press the OSD launcher touch key to access the functionalities ...

Page 39: ...h screen to black or white Go to Menu to select screen off color Use touch key to screen restore 2 Suspend To a freeze screen when press activate Use touch key to screen restore 3 Screen Drop Down Screen Drop Down so that you can easily reach the top of the image Use touch key to screen restore 4 Preset Modes Use this icon to choose from a list of preset color modes 5 Input Source Use this icon to...

Page 40: ... The following table describes the touch control icons Options Description 1 OSD menu lock Use this icon to lock OSD menu function 2 Power off button lock Use this icon to lock power button from powering off 3 OSD menu and power button lock Use this icon to lock OSD menu and power button from powering off 4 Built in Diagnostics Use this icon to run the built in diagnostics see Built in Diagnostics...

Page 41: ...menu or wait for the OSD menu to disappear 1 Press the icon on the remote control or OSD Launcher touch key to launch the OSD menu Brightness Contrast 75 75 Dell 65 Monitor Others Menu Color Display Input Source Audio Personalize Use the icons to adjust the image settings Touch control icon Description 1 Up Down Use the Up increase and Down decrease icons to adjust items in the OSD menu 2 Left Rig...

Page 42: ...onitor Others Menu Color Display Input Source Audio Personalize Brightness Brightness adjusts the luminance of the backlight Minimum 0 Maximum 100 Touch the icon to increase brightness Touch the icon to decrease brightness Contrast Adjust the Brightness first and then adjust Contrast only if further adjustment is necessary Touch the icon to increase contrast and Touch the icon to decrease contrast...

Page 43: ...ut Source USB Type C Select USB Type C input when you are using the USB Type C connector DP Select DP input when you are using the DP DisplayPort connector HDMI 1 Select the HDMI 1 input when you are using the HDMI 1 connector HDMI 2 Select the HDMI 2 input when you are using the HDMI 2 connector HDMI 3 Select the HDMI 3 input when you are using the HDMI 3 connector Auto Select Select Auto Select ...

Page 44: ...r from the list Brightness Contrast Dell 65 Monitor Others Color Display Input Source Audio Menu Personalize Preset Modes Input Color Format Reset Color Standard Color Temp Custom Color ComfortView Standard Default color settings This is the default preset mode ComfortView Decreases the level of blue light emitted from the screen to make viewing more comfortable for your eyes NOTE To reduce the ri...

Page 45: ...00K or cooler with blue tint with slider set at 10 000K Custom Color Allows you to manually adjust the color settings Touch the and icons to adjust the Red Green and Blue values and create your own preset color mode Input Color Format Allows you to set the video input mode to RGB Select this option if your display is connected to a computer or DVD player using the HDMI DP or USB Type C cable YPbPr...

Page 46: ...Sharpness Makes the image look sharper or softer Use or to adjust the sharpness from 0 to 100 Reset Display Restores the display settings to factory defaults Audio Brightness Contrast Dell 65 Monitor Others Color Display Input Source Audio Menu Personalize Volume Speaker 50 Reset Audio On Volume Allows you to set the volume level of audio source Use or to adjust the volume level from 0 to 100 Spea...

Page 47: ...nsparency Timer English 20 20 s Reset Menu Language Set the OSD display to one of eight languages English Spanish French German Brazilian Portuguese Russian Simplified Chinese or Japanese Transparency Select this option to change the menu transparency by using and icons Minimum 0 Maximum 100 Timer OSD Hold Time Sets the time the OSD remains active after you press a button Use the and icons to adju...

Page 48: ... Type A Downstream Ports charging function during monitor standby mode NOTE This option was previously called USB in older monitor firmware revisions USB C Charging Allows you to enable or disable Always On USB Type C Charging function during monitor Power Off mode NOTE Enabling this option on the monitor allows you to charge your notebook through the USB Type C cable C to C even when the monitor ...

Page 49: ...tness Contrast Dell 65 Monitor Others Color Display Input Source Audio Menu Personalize DDC CI On Display Info Firmware M2T101 HDMI CEC LCD Conditioning Off Off Reset Others Factory Reset IP Address 10 0 50 100 Service Tag ABCDEFG ENERGY STAR Select this option to adjust the OSD settings such as the DDC CI LCD conditioning and so on Display Info Displays the display s current settings ...

Page 50: ...lize DDC CI On Display Info Firmware HDMI CEC LCD Conditioning Reset Others Factory Reset IP Address Service Tag HDMI CEC Allows you to On or Off HDMI CEC function LCD Conditioning Helps reduce minor cases of image retention Depending on the degree of image retention the program may take some time to run Select On to start the process Brightness Contrast Dell 65 Monitor Others Color Display Input ...

Page 51: ...Factory Reset Restores all preset values to the factory default settings These are also the settings for ENERGY STAR tests Brightness Contrast Dell 65 Monitor Others Color Display Input Source Audio Menu Personalize DDC CI On Display Info Firmware M2T101 HDMI CEC LCD Conditioning Reset Others Factory Reset IP Address 10 0 50 100 Service Tag ABCDEFG ENERGY STAR ...

Page 52: ...ns that the display cannot synchronize with the signal that it is receiving from the computer See Display Specifications for the Horizontal and Vertical frequency ranges addressable by this display Recommended mode is 3840 x 2160 You can see the following message before the DDC CI function is disabled Dell 65 Monitor C6522QT The function of adjusting display setting using PC application will be di...

Page 53: ...ting to this value will increase power consumption above the default level Do you want to continue If you press any button other than the power button the following messages will appear depending on the selected input Dell 65 Monitor No HDMI 1 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 co...

Page 54: ... Dell 65 Monitor No HDMI 2 Cable The display will go into Standby Mode in 4 minutes www dell com C6522QT C6522QT or Dell 65 Monitor No HDMI 3 Cable The display will go into Standby Mode in 4 minutes www dell com C6522QT C6522QT or Dell 65 Monitor No DP Cable www dell com C6522QT C6522QT The display will go into Standby Mode in 4 minutes or ...

Page 55: ...Operating the display 55 Dell 65 Monitor No USB Type C Cable www dell com C6522QT C6522QT The display will go into Standby Mode in 4 minutes See Troubleshooting for more information ...

Page 56: ...play Settings 2 Click Advanced display settings 3 Click the dropdown list of Resolution and select 3840 x 2160 4 Click Apply If you do not see the 3840 x 2160 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 https www dell com support enter your service tag and download...

Page 57: ...nds to turn off A network icon appears and is shown on the center for 4 seconds To access the Dell Display Web Management tool you need to set the IP Addresses for your computer and the display 1 Press the Menu key on the remote control to display the IP Address of the display or by navigating to OSD Menu Others By default the IP Address is 10 0 50 100 Brightness Contrast Dell 65 Monitor Others Co...

Page 58: ...et Mask 255 0 0 0 leave all other entries as blanks 3 The IP Address configuration would now look like this Configure notebook IP Address to 10 0 50 101 Monitor IP Address 10 0 50 100 To access and use the web management tool follow these steps 1 Open a web browser and type the display s IP Address 10 0 50 100 in the address bar 2 The log in page opens Enter the Administrator Password to continue ...

Page 59: ...Operating the display 59 3 The Home page opens Dell C6522QT Dell C6522QT 4 Click Network Settings tab to see the network settings Dell C6522QT ...

Page 60: ...lay 5 Click Monitor Control to see the display s status 6 Click Firmware Update You can download the latest drivers from the Dell Support website at www dell com support Upgrade firmware page and wait for 30 seconds C6522QT ...

Page 61: ...Operating the display 61 Finished Click on button to proceed after 8 seconds 7 Click Security to set a password 8 Click Crestron to control interface ...

Page 62: ...ack of the computer To ensure proper Self Test operation remove all digital and the analog cables from the back of computer 3 Turn on the display The floating dialog box should appear on screen against a black background if the display 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 s...

Page 63: ...o USB Type C Cable www dell com C6522QT C6522QT The display will go into Standby Mode in 4 minutes 4 This box also appears during normal system operation if the video cable becomes disconnected or damaged 5 Turn off your display and reconnect the video cable then turn on both your computer and the display If your display screen remains blank after you use the previous procedure check your video co...

Page 64: ...and hold for 5 seconds in lock Select Option Touch the self inspection icon A gray screen appears 3 Carefully inspect the screen for abnormalities 4 Touch the front panel The color of the screen changes to red 5 Inspect the display for any abnormalities 6 Repeat steps 4 and 5 to inspect the display in green blue black white and text screens The test is complete when the text screen appears To exit...

Page 65: ...tness contrast controls via OSD Perform display 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 in the Input Source menu Poor Focus Picture is fuzzy blurry or ghosting Eliminate video extension cables Reset the display to factory settings Change the video resolution to the correct aspec...

Page 66: ...ed via OSD Geometric Distortion Screen not centered correctly Reset the display to factory settings Synchronization Problems Screen is scrambled or appears torn Reset the display to factory settings Perform display 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 safe mode Safet...

Page 67: ...e built in diagnostics Image retention from a static image left on the display for a long period of time Faint shadow from the static image displayed appears on the screen Set the screen to turn off after a few minutes of screen idle time These can be adjusted in Windows Power Options or Mac Energy Saver setting Alternatively use a dynamically changing screensaver Touchscreen non responsive Displa...

Page 68: ...th of the screen Due to different video formats aspect ratio of DVDs the display may display in full screen Run the built in diagnostics No image when using USB Type C connection to computer laptop and so on Black screen Verify if the USB Type C interface of the device can support DP alternate mode Verify if the device required more than 90 W power charging USB Type C interface of device cannot su...

Page 69: ...nment or no touch function Use the Dell provided USB cable to connect your computer Make sure the power cable has a ground pin Unplug and replug the power cable to allow initialization of the touch module Make sure computer supports USB 2 0 or later If the display cannot be detected by the computer power off on the monitor or unplug and replug the USB cable Touchscreen non responsive in standby mo...

Page 70: ...s working slowly or not working at all Check that your computer is USB 3 1 capable Some computers have USB 3 1 USB 3 0 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 Wireless USB peripherals stop working when a USB 3 1 device is plugged in Wireless USB peripheral...

Page 71: ... Solutions Ethernet not working Dell Web Management for Displays Webpage control is not working Ensure that the Network cable connecting the Display is properly secured Touch the icon 5 on the screen for 4 seconds to turn on A network icon appears and is shown on the center for 4 seconds Touch the icon 5 on the front panel for 4 seconds to turn off A network icon appears and is shown on the center...

Page 72: ...OTE 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 Online technical assistance https www dell com support monitors EU product ...

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