Dell P2423 Monitor User’s Guide Model: P2423 Regulatory model: P2423b
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 © 2022 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.
Contents Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . 6 About your monitor . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Package contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Product features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Identifying parts and controls . . . . . . . . . . . . . . . . . . . . . 10 Front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Back view .
Maintenance guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Cleaning your monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Setting up the monitor . . . . . . . . . . . . . . . . . . . . . . 32 Attaching the stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Connecting your monitor . . . . . . . . . . . . . . . . . . . . . . . . . 35 Connecting the DisplayPort (DisplayPort to DisplayPort) cable. . 35 Connecting the HDMI cable (optional) . . . .
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Self-test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Common problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Product specific problems . . . . . . . . . . . . . . . . . . . . . . . . 70 Universal Serial Bus (USB) specific problems . . . . . . . . . .71 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 FCC notices (U.S.
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.
About your monitor Package contents Your monitor ships with the components shown in the table below. If any component is missing, contact Dell technical support. For more information, see Contact Dell. NOTE: Some items may be optional and may not ship with your monitor. Some features may not be available in certain countries. NOTE: If you are attaching a stand that you purchased from any other source, follow the setup instructions available with the stand.
DisplayPort 1.2 cable (DisplayPort to DisplayPort, 1.80 meters) VGA cable (Japan only, 1.80 meters) USB 3.2 Gen1 (5 Gbps) upstream cable (enables the USB ports on the monitor, 1.
Product features The Dell P2423 monitor has an active matrix, Thin-Film Transistor (TFT), Liquid Crystal Display (LCD) and LED backlight. The monitor features include: • 60.96 cm (24 in.) viewable area (measured diagonally). 1920 x 1200 (16:10) resolution, plus full-screen support for lower resolutions. • Wide viewing angle to allow viewing from a sitting or standing position. • Color gamut of 99% sRGB. • Video connectivity with DVI, DisplayPort, HDMI and VGA.
Identifying parts and controls Front view Label 1 Description Power LED indicator Solid white light indicates that the monitor is turned on and functioning normally. Blinking white light indicates that the monitor is in Standby Mode.
Back view Back view with monitor stand Label Description Use 1 VESA mounting holes (100 mm x 100 mm - behind attached VESA Cover) Wall-mount the monitor using VESAcompatible wall mount kit (100 mm x 100 mm). 2 Regulatory label Lists the regulatory approvals. 3 Stand release button Releases stand from the monitor. 4 Barcode, serial number, and Service Tag label Refer to this label if you need to contact Dell for technical support. 5 Power On/Off button To turn the monitor on or off.
Side view Bottom view Bottom view without monitor stand Label Description Use 1 Security lock slot (based on Kensington Security Slot™) Secures the monitor with a security lock (security lock not included). 2 Power connector Connect the power cable (shipped with your monitor). 3 DisplayPort Connect your computer with the DisplayPort cable (shipped with your monitor).
4 HDMI port Connect your computer with the HDMI cable. 5 Stand lock feature To lock the stand to the monitor using a M3 x 6 mm screw (screw not included). 6 DVI port Connect your computer with the DVI cable. 7 VGA connector Connect your computer with the VGA cable (shipped with your monitor, for Japan only). 8 SuperSpeed USB Connect the USB cable that came with your 5 Gbps (USB 3.2 Gen1) monitor to the computer.
Monitor specifications Model P2423 Screen type Active matrix - TFT LCD Panel technology In-Plane Switching Technology Aspect ratio 16:10 Viewable image Diagonal 609.60 mm (24 in.) Width (active area) 518.40 mm (20.41 in.) Height (active area) 324.00 mm (12.76 in.) Total area 167961.60 mm2 (260.34 in.2) Pixel pitch 0.270 mm x 0.
Connectivity • 1 x DisplayPort version 1.2 (HDCP 1.4) • 1 x HDMI port version 1.4 (HDCP 1.4) • 1 x DVI port • 1 x VGA port • 1 x SuperSpeed USB 5 Gbps (USB 3.2 Gen1) upstream port • 4 x SuperSpeed USB 5 Gbps (USB 3.2 Gen1) downstream port Border width (edge of monitor to active area) 6.30 mm (Top) 6.30 mm (Left/Right) 17.
Preset display modes Display mode Horizontal frequency (kHz) Vertical frequency (Hz) Pixel clock (MHz) Sync polarity (Horizontal /Vertical) 720 x 400 31.50 70.10 28.30 -/+ VESA, 640 x 480 31.50 59.90 25.20 -/- VESA, 640 x 480 37.50 75.00 31.50 -/- VESA, 800 x 600 37.90 60.30 40.00 +/+ VESA, 800 x 600 46.90 75.00 49.50 +/+ VESA, 1024 x 768 48.40 60.00 65.00 -/- VESA, 1024 x 768 60.00 75.00 78.80 +/+ VESA, 1152 x 864 67.50 75.00 108.00 +/+ 1280 x 720 45.00 59.
Electrical specifications Model P2423 Video input signals • Analog RGB, 0.7 V ± 5%, positive polarity at 75 Ω input impedance • Digital DVI-D TMDS, 600 mV for each differential line, positive polarity at 50 Ω input impedance • HDMI 1.4, 600 mV for each differential line, 100 Ω input impedance per differential pair • DisplayPort 1.2, 600 mV for each differential line, 100 Ω input impedance per differential pair AC input voltage/ frequency/current 100 VAC to 240 VAC / 50 Hz or 60 Hz ± 3 Hz / 1.
NOTE: This monitor is ENERGY STAR certified. This product qualifies for ENERGY STAR in the factory default settings which can be restored by “Factory Reset” function in the OSD menu. Changing the factory default settings or enabling other features may increase power consumption that could exceed the ENERGY STAR specified limit.
Stand dimensions Height (extended) 410.80 mm (16.17 in.) Height (compressed) 364.00 mm (14.33 in.) Width 245.00 mm (9.65 in.) Depth 179.57 mm (7.07 in.) Base 245.00 mm x 173.00 mm (9.65 in. x 6.81 in.) Weight Weight with packaging 7.71 kg (17.00 lb) Weight with stand assembly and cables 5.56 kg (12.26 lb) Weight without stand assembly (For wall mount or VESA mount considerations - no cables) 3.52 kg (7.76 lb) Weight of stand assembly 1.71 kg (3.
Environmental characteristics Model P2423 Compliant standards • ENERGY STAR certified monitor • EPEAT registered where applicable. EPEAT registration varies by country. See www.epeat.net for registration status by country.
Pin assignments DisplayPort connector Pin 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 (n) 8 GND 9 ML1 (p) 10 ML0 (n) 11 GND 12 ML0 (p) 13 GND 14 GND 15 AUX (p) 16 GND 17 AUX (n) 18 Hot Plug Detect 19 Re-PWR 20 +3.
HDMI connector Pin number 19-pin side of the connected signal cable 1 TMDS DATA 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.
DVI connector Pin number 24-pin side of the connected signal cable 1 TMDS RX2- 2 TMDS RX2+ 3 TMDS Ground 4 Floating 5 Floating 6 DDC Clock 7 DDC Data 8 Floating 9 TMDS RX1- 10 TMDS RX1+ 11 TMDS Ground 12 Floating 13 Floating 14 +5 V/+3.
VGA connector Pin number 15-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 5 V/3.3 V 10 GND-sync 11 GND 12 DDC data 13 H-sync 14 V-sync 15 DDC clock Plug and play capability You can install the monitor in any Plug and Play-compatible system.
Universal Serial Bus (USB) interface This section gives you information about the USB ports that are available on the monitor. SuperSpeed USB 5 Gbps (USB 3.2 Gen1) Transfer speed Data rate Maximum power supported Super-Speed 5 Gbps 5 V/0.9 A (Max, each port) High speed 480 Mbps 5 V/0.9 A (Max, each port) Full speed 12 Mbps 5 V/0.9 A (Max, each port) NOTE: This monitor is SuperSpeed USB 5 Gbps (USB 3.2 Gen1) compatible. USB 3.
USB 3.2 Gen1 (5 Gbps) downstream connector Pin number 9-pin side of the connector 1 VCC 2 D- 3 D+ 4 GND 5 SSRX- 6 SSRX+ 7 GND 8 SSTX- 9 SSTX+ USB ports • 1 USB Type-B upstream - rear • 2 USB Type-A downstream - rear • 2 USB Type-A downstream - bottom NOTE: USB 3.2 Gen1 (5 Gbps) functionality requires a USB 3.2 Gen1capable computer. NOTE: The USB ports on the monitor work only when the monitor is turned On or in Standby mode.
LCD monitor quality and pixel policy During the LCD Monitor 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 Dell Monitor Quality and Pixel Policy, see www.dell.com/pixelguidelines. Ergonomics CAUTION: Improper or prolonged usage of keyboard may result in injury. CAUTION: Viewing the monitor screen for extended periods of time may result in eye strain.
• Always leave space to rest your hands while using the keyboard or mouse. • Let your upper arms rest naturally on both sides. • Ensure that your feet are resting flat on the floor. • When sitting, make sure that the weight of your legs is on your feet and not on the front portion of your seat. Adjust your chair's height or use a footrest if necessary to maintain a proper posture. • Vary your work activities. Try to organize your work so that you do not have to sit and work for extended periods of time.
Handling and moving your display To ensure the monitor is handled safely when lifting or moving it, follow the guidelines mentioned below: • Before moving or lifting the monitor, turn off your computer and the monitor. • Disconnect all cables from the monitor. • Place the monitor in the original box with the original packing materials. • Hold the bottom edge and the side of the monitor firmly without applying excessive pressure when lifting or moving the monitor.
• When lifting or moving the monitor, do not turn the monitor upside down while holding the stand base or stand riser. This may result in accidental damage to the monitor or cause personal injury. Maintenance guidelines Cleaning your monitor Improper cleaning methods can result in physical damage to Dell monitors. Physical defects may affect the screen and body of the monitor. CAUTION: Read and follow the Safety instructions before cleaning the monitor.
NOTE: Monitor damage due to improper cleaning methods and the use of benzene, thinner, ammonia, abrasive cleaners, alcohol, compressed air, detergent of any kind will lead to a Customer Induced Damage (CID). CID is not covered under the standard Dell warranty. • If you notice white powder when you unpack your monitor, wipe it off with a cloth. • Handle your monitor with care as a darker-colored monitor may get scratched and show white scuff marks more than a lighter-colored monitor.
Setting up the monitor Attaching the stand NOTE: The stand is not installed at the factory when shipped. NOTE: The following instructions are applicable only for attaching the stand that was shipped with your monitor. If you are attaching a stand that you purchased from any other source, follow the setup instructions available with the stand. To attach the monitor stand: 1. Remove the stand base and stand riser from the packaging cushion. NOTE: The graphics are used for the purpose of illustration only.
5. Lift the protective cover, as shown, to access the VESA area for stand assembly. 6. Attach the stand assembly to the display. a. Fit the two tabs on the upper part of the stand to the groove on the back of the display. b. Press the stand down till it snaps into place.
7. Hold the stand riser and lift the monitor carefully, then place it on a flat surface. NOTE: Lift the monitor carefully to prevent it from slipping or falling. 8. Remove the protective cover from the monitor.
Connecting your monitor WARNING: Before you begin any of the procedures in this section, follow the Safety instructions. NOTE: Dell monitors are designed to work optimally with Dell supplied inbox cables. Dell does not guarantee the video quality and performance when using non-Dell cables. NOTE: Route the cables through the cable-management slot before connecting them. NOTE: Do not connect all cables to the computer at the same time. NOTE: The graphics are used for the purpose of illustration only.
Connecting the HDMI cable (optional) Connecting the VGA cable (optional) Connecting the DVI cable (optional) 36 │ Setting up the monitor
Connecting the USB 3.2 Gen1 (5 Gbps) cable Organizing your cables After attaching all the necessary cables to your monitor and computer (see Connecting your monitor for cable attachment), organize the cables as shown above.
Securing your monitor using Kensington lock (optional) The security lock slot is located at the bottom of the monitor (see Security lock slot (based on Kensington Security Slot™)). Secure your monitor to a table using the Kensington security lock. For more information on using the Kensington lock (sold separately), see the documentation that is shipped with the lock. NOTE: The image is for the purpose of illustration only. The appearance of the lock may vary.
Removing the monitor stand NOTE: To prevent scratches on the LCD screen when removing the stand, ensure that the monitor is placed on a soft, clean surface. NOTE: The following instructions are applicable only for removing the stand that was shipped with your monitor. If you are removing a stand that you purchased from any other source, follow the setup instructions available with the stand. To remove the stand: 1. Place the monitor on a soft cloth or cushion. 2. Press and hold the stand release button. 3.
VESA wall mounting (optional) (Screw dimension: M4 x 10 mm) Refer to the instructions that come with the VESA-compatible wall mounting kit. 1. Place the monitor panel on a soft cloth or cushion on a stable flat table. 2. Remove the stand (see Removing the monitor stand.) 3. Use a Phillips crosshead screwdriver to remove the four screws securing the plastic cover. 4. Attach the mounting bracket from the wall mounting kit to the monitor. 5. Mount the monitor on the wall.
Operating the monitor Power on the monitor Press the power button to turn On the monitor. Using the joystick control Use the joystick control on the rear of the monitor to make On-Screen Display (OSD) adjustments. 1. Press the joystick to launch the Menu Launcher. 2. Move the joystick up/down/left/right to toggle between options. 3. Press the joystick again to confirm the selection. Joystick Description • When there is no OSD on the screen, press the joystick to launch the Menu Launcher.
• For 2-way (right and left) directional navigation. • Move right to enter the submenu. • Move left to exit from the submenu. • For 2-way (up and down) directional navigation. • Toggles between the menu items. • Increases (up) or decreases (down) the parameters of selected menu item.
When you move the joystick to the left or right to toggle between the shortcut functions, the selected item will be highlighted and shifted to the center position. Press the joystick to enter its submenu. 2 • Input Source: To choose an input source from the list of video signals that may be connected to your monitor. Shortcut functions • Preset Modes: To choose a preferred color mode from the list of preset modes. • Brightness/Contrast: To access the adjustment sliders of brightness and contrast.
Accessing the menu system NOTE: After you adjust the settings, press the joystick to save the changes before you proceed to another menu or exit the OSD menu. Icon Menu and Submenus Description Brightness/ Contrast Adjusts the brightness and the contrast of the display. Brightness Brightness adjusts the luminance of the backlight. Move the joystick up to increase the brightness level or move the joystick down to decrease the brightness level (min. 0 / max. 100).
Auto Adjust Even though your computer recognizes your monitor on startup, the Auto Adjust function optimizes the display settings for use with your particular setup. Auto Adjust allows the monitor to self-adjust to the incoming video signal. After using Auto Adjust, you can further tune your monitor by using the Pixel Clock (Coarse) and Phase (Fine) controls under Display settings.
Input Source Use Input Source to select between the different video signals that may be connected to your monitor. VGA Select VGA input when you are using the VGA connector. Press the joystick to confirm the selection. DVI-D Select DVI-D input when you are using the DVI-D connector. Press the joystick to confirm the selection. HDMI Select HDMI when you are using the HDMI connector. Press the joystick to confirm the selection. DP Select DP when you are using the DisplayPort (DP) connector.
Color Preset Modes Use Color to adjust the color setting mode. Allows you to choose from the list of preset color modes. Press the joystick to confirm the selection. • Standard: This is the default setting. Using a low blue light panel, this monitor is certified by TUV to reduce blue light output and create more relaxing and less stimulating images. • Movie: Loads color settings ideal for movies. • Game: Loads color settings ideal for most gaming applications.
Preset Modes • Cool: Presents colors at higher color temperatures. The screen appears cooler with a blue tint. • Custom Color: Allows you to manually adjust the color settings. Use the joystick to adjust the three colors (R, G, B) 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 monitor is connected to a computer or a media player that supports RGB output.
Hue This feature can shift the color of the video image to green or purple. This is used to adjust the desired flesh tone color. Move the joystick to adjust the hue level from '0' to '100'. NOTE: The feature is available only when you select Movie or Game preset mode. Saturation This feature can adjust the color saturation of the video image. Move the joystick to adjust the saturation level from '0' to '100'. NOTE: The feature is available only when you select Movie or Game preset mode.
Sharpness This feature can make the image look sharper or softer. Move the joystick to adjust the sharpness level from '0' to '100'. Pixel Clock The Phase and Pixel Clock adjustments allow you to adjust your monitor to your preference. Move the joystick to adjust for best image quality. NOTE: The feature is only available for VGA input. Phase If satisfactory results are not obtained using the Phase adjustment, use the Pixel Clock (coarse) adjustment and then use Phase (fine) again.
Menu Adjusts the settings of the OSD, such as, the languages of the OSD, the amount of time the menu remains on screen, and so on. Language Sets the OSD display to one of the eight languages (English, Spanish, French, German, Brazilian Portuguese, Russian, Simplified Chinese, or Japanese). Rotation Press the joystick to rotate the OSD and the screen by 0/90/180/270 degrees. You can adjust the menu according to your display rotation.
Lock With the control buttons on the monitor locked, you can prevent people from accessing the controls. • Menu Buttons: All joystick functions are locked and not accessible by the user. • Power Button: Only the Power button is locked and not accessible by the user. • Menu + Power Buttons: Both the joystick & Power button are locked and not accessible by the user. The default setting is Disable.
Personalize Shortcut Key 1 Allows you to choose a feature from Preset Modes, Shortcut Key 2 Brightness/Contrast, Auto Adjust, Input Source, Aspect Ratio, Rotation, or Display Info and set it as Shortcut Key 3 a shortcut key. Power Button LED USB Allows you to set the power LED indicator on or off to save energy. Allows you to enable or disable USB function during monitor standby mode. Reset Resets all settings under the Personalize menu to Personalization the factory preset values.
Others Display Info DDC/CI Allows you to adjust the OSD settings, such as DDC/ CI, LCD Conditioning, and so on. Displays the monitor's current settings. DDC/CI (Display Data Channel/Command Interface) allows you to adjust the monitor settings using software on your computer. You can disable this feature by selecting Off. Enable this feature for best user experience and optimum performance of your monitor.
LCD Conditioning Helps reduce minor cases of image retention. Depending on the degree of image retention, the program may take some time to run. You can enable this feature by selecting On. Service Tag Displays the service tag string of your monitor. This string is required when you look for phone support, check your warranty status, update drivers on Dell's website, etc. SelfDiagnostic Initiates the following self-diagnostic process: 1. When initiated, a gray screen appears. 2.
Factory Reset Restores all preset values to the factory default settings. These are also the settings for ENERGY STAR® tests. OSD warning message When the monitor does not support a particular resolution mode, you will see the following message: This means that the monitor cannot synchronize with the signal that it is receiving from the computer. See Monitor specifications for the Horizontal and Vertical frequency ranges addressable by this monitor. The recommended mode is 1920 x 1200.
You will see the following message before the DDC/CI function is disabled: When you adjust the Brightness level above the default level for the first time, the following message appears: NOTE: If you select Yes, the message will not appear the next time you change the Brightness setting. When you change the default USB setting for the first time, the following message appears: NOTE: If you select Yes, the message will not appear the next time you change the USB setting.
When the monitor goes into Standby mode, the following message appears: Activate the computer and wake up the monitor to gain access to the OSD. You will see the following message before the Lock function is activated: NOTE: The message may be slightly different according to the selected settings. The OSD functions only in the normal operation mode.
If VGA, DVI-D, DisplayPort, or HDMI input is selected and the corresponding cable is not connected, the following message will appear: NOTE: The message may be slightly different according to the selected input signal. When Factory Reset is selected, the following message appears: If you select Yes to reset to default settings, the following message appears: See Troubleshooting for more information.
Setting the maximum resolution NOTE: The steps may vary slightly depending on the version of Windows you have. To set the maximum resolution for the monitor: In Windows 8.1: 1. For Windows 8.1, select the Desktop tile to switch to classic desktop. 2. Right-click on the desktop and click Screen resolution. 3. If you have more than one monitor connected, ensure that you select P2423. 4. Click the Screen Resolution dropdown list and select 1920 x 1200. 5. Click OK. In Windows 10 and Windows 11: 1.
Using the tilt, swivel, and vertical extension NOTE: The following instructions are applicable only for attaching the stand that was shipped with your monitor. If you are attaching a stand that you purchased from any other source, follow the setup instructions available with the stand. Tilt, swivel With the stand attached to the monitor, you can tilt and swivel the monitor for the most comfortable viewing angle. NOTE: The stand is not installed at the factory when shipped.
Rotating the monitor Before you rotate the monitor, your monitor should be fully vertically extended (Vertical extension) and fully tilted up to avoid hitting the bottom edge of the monitor.
Rotate counterclockwise NOTE: To use the Display Rotation function (Landscape versus Portrait view) with your Dell computer, you require an updated graphics driver that is not included with this monitor. To download the graphics driver, go to www.dell.com/support and see the Download section for Video Drivers for latest driver updates. NOTE: When in the Portrait View Mode, you may experience performance degradation in graphic-intensive applications (3D Gaming and etc.).
Adjusting the rotation display settings of your system After you have rotated your monitor, you need to complete the procedure below to adjust the Rotation Display Settings of your system. NOTE: If you are using the monitor with a non-Dell computer, you need to go the graphics driver website or your computer manufacturer website for information on rotating the 'contents' on your display. To adjust the Rotation Display Settings: 1. Right-click on the desktop and click Properties. 2.
Troubleshooting WARNING: Before you begin any of the procedures in this section, follow the Safety instructions. Self-test Your monitor provides a self-test feature that allows you to check whether your monitor is functioning properly. If your monitor and computer are properly connected but the monitor screen remains dark, run the monitor self-test by performing the following steps: 1. Turn off both your computer and the monitor. 2. Unplug the video cable from the computer. 3. Turn on the monitor.
Common problems The following table contains general information about common monitor problems you might encounter and the possible solutions: Common symptoms No video/ power LED off What you experience No picture Possible solutions • Ensure that the video cable connecting the monitor and the computer is properly connected and secure. • Verify that the power outlet is functioning properly using any other electrical equipment. • Ensure that the power button is pressed fully.
Shaky/jittery video Wavy picture or fine movement • Perform Auto Adjust via OSD. • Adjust the Phase and Pixel Clock controls via OSD. • Reset the monitor to factory settings. • Check environmental factors. • Relocate the monitor and test in another room. Missing pixels LCD screen has spots • Cycle power On-Off. • Pixel that is permanently Off is a natural defect that can occur in LCD technology. • For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at: www.dell.
Horizontal/ vertical lines Screen has one or more lines • Reset the monitor to factory settings. • Perform Auto Adjust via OSD. • Adjust the Phase and Pixel Clock controls via OSD. • Perform monitor self-test feature check (see Self-test) and determine if these lines are also in self-test mode. • Check for bent or broken pins in the video cable connector. • Run the built-in diagnostics (see SelfDiagnostic). • When using DVI-D/HDMI/DisplayPort input, the Pixel Clock and Phase adjustments are not available.
Missing color Picture missing color • Perform monitor self-test feature check (see Self-test). • Ensure that the video cable connecting the monitor to the computer is connected properly and is secure. • Check for bent or broken pins in the video cable connector. Wrong color Picture color not good • Change the settings of the Preset Modes in the Color menu OSD depending on the application. • Adjust the R/G/B values under Custom Color in the Color menu OSD.
Product specific problems Common symptoms What you experience Possible solutions Screen image is too Image is centered on • Check the Aspect Ratio setting in small screen, but does not the Display menu OSD. fill entire viewing • Reset the monitor to factory settings. area Cannot adjust the monitor with the joystick OSD does not • Turn Off the monitor, unplug the appear on the screen power cord, plug it back, and then turn On the monitor. • Check whether the OSD menu is locked.
Universal Serial Bus (USB) specific problems Common symptoms What you experience USB interface is not working USB peripherals are not working Possible solutions • Check that your monitor is turned On. • Reconnect the upstream cable to your computer. • Reconnect the USB peripherals (downstream connector). • Turn off the monitor and turn it on again. • Reboot the computer. • Some USB devices like external portable HDD require higher electric current; connect the device directly to the computer system.
Appendix FCC notices (U.S. only) and other regulatory information For FCC notices and other regulatory information, see the regulatory compliance website located at www.dell.com/regulatory_compliance. Contact 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.
