Dell E248wfp Users Guide
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Notes, Notices, and Cautions Throughout this guide, blocks of text may be accompanied by an icon and printed in bold type or in italic type. These blocks are notes, notices, and cautions, and they are used as follows: Some warnings may appear in alternate formats and may be unaccompanied by an icon. In such cases, the specific presentation of the caution is mandated by regulatory authority. Information in this document is subject to change without notice. 2007 Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden. Trademarks used in this text: Dell , the DELL logo are trademarks of Dell Inc; Microsoft and Windows either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. ENERGY STAR is a registered trademark of the U.S. Environmental Protection Agency. As an ENERGY STAR partner, Dell Inc. has determined that this product meets the ENERGY STAR guidelines for energy efficiency. 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. disclaims any proprietary interest in trademarks and trade names other than its own. Model E248WFP August 2007 Rev. A02 About Your Monitor Product Features Identifying Parts and Controls Monitor specifications Plug and Play Capability LCD Monitor Quality & Pixel Policy Maintenance Guidelines Setting Up the Monitor Attaching the Stand Connecting the Monitor Organizing the Cables Attaching the Soundbar (optional) Removing the Stand Operating the Monitor Using the Front Panel Controls Using the On - Scree Display (OSD yf Setting the Optimal Resolution Using the Dell Soundbar (Optional) Using the Tilt Solving Problems Troubleshooting Your Monitor Common Problems Product Specific Problems Appendix CAUTION: Safety Instruction FCC Notice (U.S. Only) Contacting Dell™ NOTE: A NOTE indicates important information that helps you make better use of your computer. NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. CAUTION: A CAUTION indicates the potential for property damage, personal injury, or death.
Back to Contents Page Product Features Identifying Parts and Controls Monitor Specifications Plug and Play Capability LCD Monitor Quality & Pixel Policy Maintenance Guidelines Product Features The E248WFP flat panel display has an active matrix, thin - film transistor (TFT), liquid crystal display (LCD). The monitor features include: ■ 24 - inch (609.6 mm) viewable area display. ■ 1920 x 1200 resolution, plus full - screen support for lower resolutions. ■ Wide viewing angle to allow viewing from a sitting or standing position, or moving side - to - side. ■ Tilt adjustment capabilities. ■ Removable pedestal and VESA 100 mm mounting holes for flexible mounting solutions. ■ Plug and play capability if supported by your system. ■ On - Screen Display (OSD) adjustments for ease of set - up and screen optimization. ■ Software and documentation CD includes an information file (INF), Image color Matching File (ICM), and product documentation. ■ Energy Saver feature for Energy Star compliance. ■ Security lock slot. ■ Asset Control. ■ Stand anti - theft feature. Identifying Parts and Features Front View Front View Front panel controls Label Description 1 Input source selection 2 Menu selection button
Back View Side View 3 Brightness & Contrast / Down( - ) button 4 Auto - Adjust / Up(+) button 5 Power on/off button with LED indicator Label Description/Use 1 Dell Soundbar mounting brackets Attach the optional Dell Soundbar. 2 Security lock slot Attach a lock to secure your monitor. 3 Stand removal button Press to release the stand. 4 VESA mounting holes ( 100mm - behind attached stand) Use to mount monitor. 5 Barcode serial number label Refer to this label if you need to contact Dell for technical support. 6 Regulatory rating label List the regulatory approvals. 7 Cable management opening Help organize cables by passing them through the holder. Left side
Bottom View Bottom view Monitor Specifications The following sections give you information about the various power management modes and pin assignments for various connectors for your monitor. Power Management Modes If you have VESAs DPMS compliance display card or software installed in your PC, the monitor automatically reduces its power consumption when not in use. This is referred to as Power Save Mode*. If input from keyboard, mouse or other 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: Activate the computer and wake up the monitor to gain access to the OSD . * Zero power consumption in OFF mode can only be achieved by disconnecting the main cable from the monitor. Pin Assignments Label Description 1 AC power cord connector 2 DVI connector 3 VGA connector VESA Modes Horizontal Sync Vertical Sync Video Power Indicator Power Consumption Normal operation Active Active Active Green 50 W (typical) Active - off mode Inactive Inactive Blanked Amber Less than 2 W Switch off - - - Off Less than 1 W NOTE: The OSD functions only in the normal operation mode. Otherwise one of the following messages appears depending upon the selected input. In Power Save Mode Press computer power button or any key on keyboard or move mouse This monitor is ENERGY STAR ® - compliant as well as TCO 99 / TCO 03 power management compatible.
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 5V/3.3V 10 GND - sync 11 GND 12 DDC data 13 H - sync 14 V - sync 15 DDC clock 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
Plug and Play Capability You can install the monitor in any Plug and Play - compatible system. The monitor automatically provides the computer system with its Extended Display Identification Data (EDID) using Display Data Channel (DDC) protocols so the system can configure itself and optimize the monitor settings. If required, the user can select different settings, but in most cases monitor installation is automatic. 12 Floating 13 Floating 14 +5V / +3.3V 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 - Flat Panel Specifications Screen type Active matrix - TFT LCD Screen dimensions 24 inches (24 - inch diagonal viewable image size) Preset display area: Horizontal 520 mm (20.4 inches) Vertical 325.6 mm (12.8 inches) Pixel pitch 0.27 mm Viewing angle 160° (VerticalyfW\SLFDO
The following table lists the preset modes for which Dell guarantees image size and centering: Display Mode Horizontal Frequency (kHz) Vertical Frequency (Hz) Pixel Clock (MHz) Sync Polarity (Horizontal/Vertical) VGA, 720 x 400 31.5 70.1 28.3 - /+ VGA, 640 x 480 31.5 59.9 25.2 - / - VESA, 640 x 480 37.5 75.0 31.5 - / - VESA, 800 x 600 37.9 60.3 40.0 +/+ VESA, 800 x 600 46.9 75.0 49.5 +/+ VESA, 1024 x 768 48.4 60.0 65.0 - / - VESA, 1024 x 768 60.0 75.0 78.8 +/+ VESA, 1152 x 864 67.5 75.0 108.0 +/+ VESA, 1280 x 1024 64.0 60.0 108.0 +/+ VESA, 1280 x 1024 80.0 75.0 135.0 +/+ VESA, 1600 x 1 200 75.0 60.0 162.0 +/+ VESA, 1920 x 1200 74.5 60.0 154.0 +/ - Electrical The following table lists the electrical specification: Video input signals Analog RGB: 0.7 Volts +/ - 5ybRKPLQSXWLPSHGDQFH Digital DVI - D TMDS, 600mV for each differential line, positive polarity at 50 ohm input impedance 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 / 1.5 A (Max.) Inrush current 120V: 40A (Max.) 240V: 80A (Max.) Physical Characteristics The following table lists the physical characteristics: Signal cable type D - sub: Detachable, Analog, 15pin, shipped attached to the monitor DVI - D: Detachable, Digital, Solid pins, shipped detached to the monitor Dimensions (with stand): Height 436.3 mm (17.17 inches) Width 559 .7 mm (22.04 inches) Depth 172 .0 mm (6.77 inches) Weight Monitor (Stand and Head) 6 .8 kg ( 14.99 lb ) Monitor Flat panel only (VESA Mode) 5.2 kg ( 11.46 lb ) Weight with packaging 9.2 kg (20.26 lb ) Environmental The following table lists the environmental limitation: Temperature: Operating 0° to 40°C (32° to 104°F )
LCD Monitor Quality & Pixel Policy During the LCD Monitor manufacturing process, it is not uncommon for one or more pixels to become fixed in an unchanging state. The visible result is a fixed pixel that appears as an extremely tiny dark or bright discolored spot. In almost every case, these fixed pixels are hard to see and do not detract from display quality or usability. 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 F o r best practices, follow the instructions in the list below while unpacking, cleaning, or handling your monitor: l To clean your antistatic screen, lightly dampen a soft, clean cloth with water. If possible, use a special screen - cleaning tissue or solution suitable for the antistatic coating. Do not use benzene, thinner, ammonia, abrasive cleaners, or compressed air. l Use a lightly - dampened, warm cloth to clean the plastics. Avoid using detergent of any kind as some detergents leave a milky film on the plastics. l If you notice a white powder when you unpack your monitor, wipe it off with a cloth. This white powder occurs during the shipping of the monitor. l Handle your monitor with care as darker - colored plastics may scratch and show white scuff marks more than lighter - colored monitor. Back to Contents Page Nonoperating Storage: - 20° to 60°C ( - 4° to 140°F ) Shipping: - 20° to 60°C ( - 4° to 140°F ) Humidity: Operating 10% to 80% (noncondensing) Nonoperating Storage: 5% to 90% (noncondensing) Shipping: 5% to 90%(noncondensing) Altitude: Operating 3,657.6 m ( 12,000 ft ) max Nonoperating 12,192 m ( 40,000 ft ) max Thermal dissipation 259 BTU/hour (maximum) 171 BTU/hour (typical) CAUTION: Read and follow the Safety Instructions before cleaning the monitor. CAUTION: Before cleaning the monitor, unplug the monitor from the electrical outlet.
Back to Contents Page Appendix DellT E248WFP Flat Panel Monitor Safety Instructions FCC Notice (U.S. Only) Contacting Dell™ CAUTION: Safety Instructions Read and follow these instructions when connecting and using your computer monitor: l To help avoid damaging your computer, be sure that the voltage selection switch on the power supply for the computer is set to match the alternating current (AC) power available at your location: 115 volts (V)/60 hertz (Hz) in most of North and South America and some Far Eastern countries such as Japan, South Korea (also 220 volts (V)/60 hertz (Hz)), and Taiwan. 230 volts (V)/50 hertz (Hz) in most of Europe, the Middle East, and the Far East. l Always be sure that your monitor is electrically rated to operate with the AC power available in your location. l Do not store or use the monitor in locations that are exposed to heat, direct sunlight, or extreme cold. l Avoid moving the monitor between locations with large temperature differences. l Do not subject the monitor to severe vibration or high impact conditions. For example, do not place the monitor inside a car trunk. l Do not store or use the monitor in locations exposed to high humidity or dusty environment. l Do not allow water or other liquids to spill on or into the monitor. l Keep flat panel monitor in room temperature conditions. Excessive cold or hot conditions can have an adverse effect on the liquid crystal of the display. l Never insert anything metallic into the monitor openings. Doing so may create the danger of electric shock. l To avoid electric shock, never touch the inside of the monitor. Only a qualified technician should open the monitor case. l Never use your monitor if the power cable has been damaged. Ensure that nothing rests on your computers cables and that the cables are not located where they can be stepped on or tripped over. l Be sure to grasp the plug, not the cable, when disconnecting the monitor from an electric socket. l Openings in the monitor cabinet are provided for ventilation. To prevent overheating, these openings should not be blocked or covered. Avoid using the monitor on a bed, sofa, rug, or other soft surface, as doing so may block the ventilation openings in the bottom of the cabinet. If you place the monitor in a bookcase or an enclosed space, be sure to provide adequate ventilation and air flow. l Place your monitor in a location with low humidity and minimum dust. Avoid places similar to a damp basement or dusty hallway. l Do not expose the monitor to rain or use it near water (in kitchens, next to swimming pools, etc.). If the monitor accidentally gets wet, unplug it and contact an authorized dealer immediately. You can clean the monitor with a damp cloth when necessary, being sure to unplug the monitor first. l Place the monitor on a solid surface and treat it carefully. The screen is made of glass and can be damaged if dropped or hit sharply. l Locate your monitor near an easily accessible electric outlet. l If your monitor does not operate normally - in particular, if there are any unusual sounds or smells coming from it - unplug it immediately and contact an authorized dealer or service center. l Do not attempt to remove the back cover, as you will be exposed to an electrical shock hazard. The back cover should only be removed by qualified service personnel. l High temperatures can cause problems. Dont use your monitor in direct sunlight, and keep it away from heaters, stoves, fireplaces, and other sources of heat. l Unplug the monitor when it is going to be left unused for an extended period of time. l Unplug your monitor from the electric outlet before any service is performed. l LAMP(S) INSIDE THIS PRODUCT CONTAIN(S) MERCURY AND MUST BE RECYCLED OR DISPOSED OFF ACCORDING TO LOCAL, STATE OR FEDERAL LAWS. FOR MORE INFORMATION, GO TO WWW.DELL.COM/HG OR CONTACT THE ELECTRONIC INDUSTRIES ALLIANCE AT WWW.EIAE.ORG . FCC Notice (U.S. Only) CAUTION: 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. NOTE: This monitor does not need or have a voltage selection switch for setting the AC voltage input. It will automatically accept any AC input voltage according to the ranges defined in the Electrical Specifications section in the Users Guide.
FCC Class B This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the manufacturers instruction manual, may cause interference with radio and television reception. This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference. 2. This device must accept any interference received, including interference that may cause undesired operation. These limits are designed to provide reasonable protection against harmful interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference with radio or television reception, which can be determined by turning the equipment off and on, you are encouraged to try to correct the interference by one or more of the following measures: l Reorient the receiving antenna. l Relocate the system with respect to the receiver. l Move the system away from the receiver. l Plug the system into a different outlet so that the system and the receiver are on different branch circuits. If necessary, consult a representative of DellT Inc. or an experienced radio/television technician for additional suggestions. The following information is provided on the device or devices covered in this document in compliance with the FCC regulations: l Product name: E 248WFP l Model number: E 248WFPb l Company name: Dell Inc. Worldwide Regulatory Compliance & Environmental Affairs One Dell Way Round Rock, Texas 78682 USA 512 - 338 - 4400 To contact Dell electronically, you can access the following websites and by phone: l For support through the web, go to support.dell.com . l For customers in the United States, call 800 - WWW - DELL (800 - 999 - 3355). 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. To contact Dell for sales, technical support, or customer service issues: 1. Visit support.dell.com . 2. Verify your country or region in the Choose A Country/Region drop - down menu at the bottom of the page. 3. Click Contact Us on the left side of the page. 4. Select the appropriate service or support link based on your need. 5. Choose the method of contacting Dell that is convenient for you. Back to Contents Page NOTICE: The FCC regulations provide that changes or modifications not expressly approved by DellT Inc. could void your authority to operate this equipment. 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.