Dell C7520QT User Manual
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Dell C7520QT User Manual

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Dell C7520QT
User's Guide
Model: C7520QT
Regulatory model: C7520QTt

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Summary of Contents for Dell C7520QT

  • Page 1 Dell C7520QT User’s Guide Model: C7520QT Regulatory model: C7520QTt...
  • Page 2 WARNING: A WARNING indicates a potential for property damage, personal injury, or death. Copyright © 2018-2020 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 – 11...

  • Page 3: Table Of Contents

    Using the On-Screen Display (OSD) Menu ....37 Dell Web Management for Displays ..... . . 52 Troubleshooting .
  • Page 4 FCC Notices (U.S. only) and Other Regulatory Information ..65 Contacting Dell ........65 EU product database for energy label and product information sheet .

  • Page 5: About Your Display

    Package Contents Your display ships with the components shown below. 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.
  • Page 6 (Remote control & Stylus holder) Wire Saddle x 3 Power cable (varies by country) Power cable for connecting Optiplex system to display (see Optiplex (Optional)) USB 3.0 upstream cable (enables the USB ports on the display) DP cable (DP to DP) VGA cable HDMI cable •...

  • Page 7: Product Features

    Product Features The Dell C7520QT display has an active matrix, thin film transistor (TFT), liquid crystal display (LCD), and LED backlight. The display features include: • 189.273 cm (74.52-inch) active area display (Measured diagonally) 3840 x 2160 (16:9 aspect ratio) resolution, plus full-screen support for lower resolutions.

  • Page 8: Identifying Parts And Controls

    Identifying Parts and Controls Front view Label Description Screen drop down touch key IR Lens Power on/off button 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. OSD Launcher touch key (For more information, see Operating the Display)
  • Page 9 Use to hold a Micro Form Factor Optiplex Serial number, Service Tag label, and Website Refer to this label if you need to contact Dell for technical support. Barcode, serial number, and Service Tag label Regulatory label List of approved regulatory labels.
  • Page 10 Side View Label Description HDMI 1 connector HDMI 2 connector Connect your computer with HDMI cable. HDMI 3 connector DP connector Connect your computer with DP cable. VGA connector Connect your computer with VGA cable. Audio line-in port Analog audio (two channel) input. Audio line-out port Connect to external audio peripherals.
  • Page 11 USB 3.0 downstream Connect your USB device. ports (3) You can only use this connector after you have connected the USB cable to the computer and USB upstream connector on the display. USB charging port USB 3.0 with 10 W with BC1.2 charging capability at 2A (max).

  • Page 12: Display Specifications

    Display Specifications Screen type Active matrix - TFT LCD Panel Type In-plane switching Technology Aspect ratio 16:9 Viewable image dimensions Diagonal 189.273 cm (74.52 inches) Active Area Horizontal 1649.664 mm (64.95 inches) Vertical 927.936 mm (36.53 inches) Area 1530323.4 mm (2372 inches Pixel pitch 0.429 mm x 0.429 mm...
  • Page 13 Touch Type InGlass Touch Technology Input Method Bare finger and stylus Interface USB HID Compliant Up to 20 points touch Touch point Up to 4 pens NOTE: Touch Pen and Eraser differentiation ready (functionality subject to application). Support OS Version Touch Eraser Windows...
  • Page 14 Resolution Specifications Horizontal scan range 30 kHz to 140 kHz (DP/HDMI) Vertical scan range 24 Hz to 75 Hz (DP/HDMI) Maximum preset resolution 3840 x 2160 at 60 Hz Video display capabilities 480p, 576p, 720p, 1080i, 1080p, 2160p (DP & HDMI playback) NOTE:VGA input resolution supported is 1920 x 1080 only.
  • Page 15 Electrical Specifications Video input signals • Digital video signal for each differential line Per differential line at 100 ohm impedance • DP/HDMI/VGA signal input support Input voltage/ frequency/current 100-240 VAC / 50 or 60 Hz ± 3 Hz / 5.5 A (maximum) Output voltage/ frequency/current 100-240 VAC / 50 or 60 Hz ±...
  • Page 16 Physical Characteristics Connector type • DP connector • VGA connector • HDMI connector • Audio line-out • Audio line-in • USB 3.0 connector • USB charging port- supplying power of up to 5 V (max 2A) for connected devices • RJ-45 connector • RS232 connector Signal cable type (in-box) DP, 3 m cable HDMI, 3 m cable VGA, 3 m cable...
  • Page 17 Environmental Characteristics Compliant Standards ENERGY STAR certified Monitor EPEAT EPEAT registered where applicable. EPEAT registration varies by country. See www.epeat.net for registration status by country. RoHS Compliant 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...
  • Page 18 Pin Assignments DP connector Pin number 20-pin side of the connected signal cable ML3(n) ML3(p) ML2(n) ML2(p) ML1(u) ML1(p) ML0(n) ML0(p) CONFIG1/(GND) CONFIG2/(GND) AUX CH (p) DP_Cable Detect AUX CH (n) Hot Plug Detect +3.3V DP_PWR About Your Display...
  • Page 19 VGA connector Pin number 15-pin side of the connected signal cable Video-Red Video-Green Video-Blue Self-test GND-R GND-G GND-B Computer 5 V / 3.3 V GND-sync DDC data H-sync V-sync DDC clock About Your Display...
  • Page 20 HDMI connector Pin number 19-pin side of the connected signal cable TMDS DATA 2+ TMDS DATA 2 SHIELD TMDS DATA 2- TMDS DATA 1+ TMDS DATA 1 SHIELD TMDS DATA 1- TMDS DATA 0+ TMDS DATA 0 SHIELD TMDS DATA 0- TMDS CLOCK+ TMDS CLOCK SHIELD TMDS CLOCK-...
  • Page 21 RS232 connector Pin number 9-pin side of the connected signal cable Not Used Not Used About Your Display...
  • Page 22 RJ-45 connector Pin number 12-pin side of the connected signal cable LED2_Y+ LED2_Y- LED2_G+ LED2_G- About Your Display...

  • Page 23: Plug-And-Play

    Universal Serial Bus (USB) This section gives you information about the USB ports available on your display. Your computer has the following USB ports: • 3 USB 3.0 upstream • 4 USB 3.0 downstream (1 USB charging port) NOTE: The display’s USB ports work only when the display is on or in standby mode. If you turn off the display and then turn it on, the attached peripherals may take a few seconds to resume normal functionality.

  • Page 24: Lcd Display Quality And Pixel Policy

    During the LCD display 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 LCD Display Pixel Policy, see Dell support site at: http:// www.dell.com/support/monitors.

  • Page 25: Setting Up The Display

    Setting Up the Display Connecting Your Display WARNING: Before you begin any of the procedures in this section, follow the Safety Instructions. To connect your display to the computer: 1. Turn off your computer. 2. Connect the HDMI/DP/VGA/USB cable from your display to the computer. 3.
  • Page 26 • Slide Optiplex holder back into display. External PC connection Connecting the USB cable NOTE: Refer to section on input source and USB pairing. Setting Up the Display...
  • Page 27 Connecting the HDMI cable HDMI HDMI Connecting the DP cable Connecting the VGA cable Setting Up the Display...
  • Page 28 Connecting the Optiplex Connecting the HDMI cable USB 1 HDMI1 Connecting the DP cable USB 3 Setting Up the Display...
  • Page 29 Connecting the VGA cable USB 3 Setting Up the Display...

  • Page 30: Wall Mounting

    • Do not attempt to wall mount the Touch Display by yourself. it should be installed by qualified installers. • Recommended Wall Mount for this Display is can be found in the Dell support website at dell.com/support. NOTE: For use only with UL or CSA or GS-listed wall mount bracket with minimum weight/load bearing capacity of the product.

  • Page 31: Remote Control

    Remote Control 4. Left Press to move the selection left in OSD menu. 5. Down Press to move the selection down in OSD menu. 6. Menu Press to turn on the OSD menu. 7. Brightness - Press to decrease the Brightness. 8.
  • Page 32 Inserting the batteries in the remote control The remote control is powered by two 1.5V AAA batteries. To install or replace batteries: 1. Press and then slide the cover to open it. 2. Align the batteries according to the (+) and (–) indications inside the battery compartment.
  • Page 33 Operating range of the remote control Point the top of the remote control toward the LCD display’s remote sensor during button opera- tion. Use the remote control within a distance of about 7 m from remote control sensor or at a hori- zontal and vertical angle of within 22.5°...

  • Page 34: Operating The Display

    Operating the Display Turning on the Display Press the Power 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 35: Using The Touch Control Launcher

    Using the Touch Control Launcher Use the touch control icons on the front of the display to adjust the characteristics of the image being displayed. As you use these icons to adjust the controls, an OSD shows the numeric values of the characteristics as they change.

  • Page 36: Using The Osd Lock Function

    Using the OSD lock function 1. Press the OSD launcher touch key. 2. Touch and hold for 5 seconds. you can see following select option: Dell 75 Monitor Select Option: C7520QT The following table describes the touch control icons: Description Options Use this icon to lock OSD menu function.

  • Page 37: Using The On-Screen Display (Osd) Menu

    3. Touch and hold for 5 seconds, touch to unlock. Dell 75 Monitor Select Option: C7520QT Using the On-Screen Display (OSD) Menu Accessing the Menu System NOTE: Any changes you make using the OSD menu are automatically saved if you move to another OSD menu, exit the OSD menu, or wait for the OSD menu to disappear.
  • Page 38 Use the Back icon to go back to the previous menu. Back Touch OSD Control Icon Menu and Description Submenus Brightness/ Use this menu to activate Brightness/Contrast adjustment. Contrast Dell 75 Monitor Brightness/Contrast Auto Adjust Input Source Color Display Audio Menu Personalize Others...
  • Page 39 Auto Adjustment allows the display to self-adjust to the incoming video signal. After using Auto Adjustment, you can further tune your display by using the Pixel Clock (Coarse) and Phase (Fine) controls under Display menu. Dell 75 Monitor Brightness/Contrast Auto Adjust Press to adjust the screen automatically.
  • Page 40 Icon Menu and Description Submenus Input Source Use the Input Source menu to select between different video inputs that are be connected to your display. Dell 75 Monitor Brightness/Contrast Auto Adjust Input Source HDMI 1 Color HDMI 2 Display HDMI 3...
  • Page 41 Icon Menu and Description Submenus Preset Modes When you select Preset Modes, you can choose Standard, ComfortView, Color Temp. or Custom Color from the list. Dell 75 Monitor Brightness/Contrast Preset Modes Standard Auto Adjust Input Color Format ComfortView Input Source Reset Color Color Temp.
  • Page 42 • RGB: Select this option if your display is connected to a computer (or DVD player) using the HDMI, DP or VGA cable. • YPbPr: Select this option if your DVD player supports only YPbPr output. Dell 75 Monitor Brightness/Contrast Preset Modes Auto Adjust...
  • Page 43 Icon Menu and Description Submenus Display Use the Display menu to adjust image. Dell 75 Monitor Brightness/Contrast Aspect Ratio Wide 16:9 Auto Adjust Horizontal Position Input Source Vertical Position Color Sharpness Pixel Clock Display Audio Phase Menu Reset Display Personalize...
  • Page 44 Icon Menu and Description Submenus Reset Display Restores the display settings to factory defaults. Audio Dell 75 Monitor Brightness/Contrast Volume Auto Adjust Audio Source HDMI 1 Input Source Speaker Color Reset Audio Display Audio Menu Personalize Others Volume Allows you to set the volume level of audio source.
  • Page 45 1-second increments, from 5 to 60 seconds. Reset Menu Restore the menu settings to factory defaults. Personalize Dell 75 Monitor Brightness/Contrast Power Button LED On in On Mode Auto Adjust O in Standby Mode...
  • Page 46 Allows you to set the Screen Off Color to White or black. Color Wake On Select On to turn on this feature. Touch Reset Restores shortcut keys to factory defaults. Persona- lization Other Dell 75 Monitor Brightness/Contrast Display Info Auto Adjust DCC/CI Input Source HDMI CEC LCD Conditioning Color Firmware...
  • Page 47 Select On to start the process. Dell 75 Monitor This feature will help reduce minor cases of image retention. Depending on the degree of image retention, the program may take some time to run.
  • Page 48 OSD Warning Messages When the display does not support a particular resolution mode, you can see the following message: Dell 75 Monitor The current input timing is not supported by the monitor display. Please change your input timing to 3840 x 2160, 60Hz or any other monitor listed timing as per the monitor specifications.
  • Page 49 Select OSD items of On in Standby Mode in Personalize feature, the following message will appear: Dell 75 Monitor Changing to this setting (without symbol) will Increase power consumption,Do you want to continue? C7520QT If adjust the Brightness level above the default level over 75%, the following message will...
  • Page 50 If either HDMI 1, HDMI 2, HDMI 3, DP or VGA input is selected and the corresponding cable is not connected, a floating dialog box as shown below appears. Dell 75 Monitor No HDMI 1 Cable The display will go into Standby Mode in 4 minutes.
  • Page 51 Dell 75 Monitor No VGA Cable The display will go into Standby Mode in 4 minutes. www.dell.com/C7520QT C7520QT Troubleshooting for more information. Operating the Display...

  • Page 52: Dell Web Management For Displays

    Touch and hold the touch key 5 on the front panel for 4 seconds 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.
  • Page 53 2. In the computer’s IP Properties tab, specify an IP Address by selecting Use the following IP Address and enter the following values: For IP Address: 10.0.50.101 and for Subnet 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 Monitor IP Address 10.0.50.101...
  • Page 54 3. The Home page opens: 4. Click Network Settings tab to see the network settings. Operating the Display...
  • Page 55 5. Click Display Control to see the display’s status. 6. Update Firmware. You can download the latest drivers from the Dell Support website at www.dell.com/support. 7. Upgrade firmware page and wait for 30 seconds. Operating the Display...
  • Page 56 8. Finished. Click on button to proceed after 8 seconds. 9. Click Security to set a password. 10. Click Crestron to control interface. Operating the Display...

  • Page 57: Troubleshooting

    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. Dell 75 Monitor No HDMI 1 Cable The display will go into Standby Mode in 4 minutes.
  • Page 58 Dell 75 Monitor No HDMI 3 Cable The display will go into Standby Mode in 4 minutes. www.dell.com/C7520QT C7520QT Dell 75 Monitor No DP Cable The display will go into Standby Mode in 4 minutes. www.dell.com/C7520QT C7520QT Dell 75 Monitor No VGA Cable The display will go into Standby Mode in 4 minutes.

  • Page 59: Built-In Diagnostics

    Built-in Diagnostics Your display has a built-in diagnostic tool that helps you determine if the screen abnormality you are experiencing is an inherent problem with your display, or with your computer and video card. To run the built-in diagnostics: 1. Make sure that the screen is clean (no dust particles on the surface of the screen). 2.

  • Page 60: Common Problems

    • Relocate the display and test in another room. Missing Pixels LCD screen has • Cycle power on-off. spots • Pixel that is permanently off is a natural defect that can occur in LCD technology. • For more information on Dell Display Quality and Pixel Policy, see Dell Support site at: http://www.dell.com/support/monitors. Stuck-on Pixels LCD screen has • Cycle power On-Off. bright spots • Pixel that is permanently off is a natural defect that can occur in LCD technology.
  • Page 61 • Restart the computer in safe mode. Safety Related Visible signs of • Do not perform any troubleshooting steps. Issues smoke or sparks • Contact Dell immediately. Intermittent Display • Ensure that the video cable connecting the display to Problems malfunctions on the computer is connected properly and is secure.

  • Page 62: Product Specific Problems

    Common What You Possible Solutions Symptoms Experience Image retention Faint shadow • Set the screen to turn off after a few minutes of from a static from the static screen idle time. These can be adjusted in Windows image left on the image displayed Power Options or Mac Energy Saver setting.

  • Page 63: Touchscreen Problems

    Touchscreen Problems Specific What You Possible Solutions Symptoms Experience • Use the Dell provided USB cable to connect your computer. • Make sure the power cable has a ground pin. Touch function • Unplug and replug the power cable to allow Touch report miss alignment or initialization of the touch module.

  • Page 64: Ethernet Problems

    Ethernet Problems Specific What You Possible Solutions Symptoms Experience Ethernet not Dell Web • Ensure that the Network cable connecting the Display working Management for is properly secured. Displays Webpage • Touch the icon 5 on the screen for 4 seconds to turn...

  • Page 65: Appendix

    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 be available in your area.

  • Page 66: Setting Up Your Display

    2. After installing the drivers for your graphics adapter, attempt to set the resolution to 3840 x 2160 again. NOTE: If you are unable to set the resolution to 3840 x 2160, please contact Dell to inquire about a graphics adapter that supports these resolutions.
  • Page 67 Non-Dell computer In Windows 7, Windows 8 or Windows 8.1: 1. For Windows 8 or Windows 8.1 only, select the Desktop tile to switch to classic desktop. 2. Right-click on the desktop and click Personalization. 3. Click Change Display Settings.

  • Page 68: Maintenance Guidelines

    Maintenance Guidelines 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.

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