Samsung Syncmaster B2440 User Manual
Have a look at the manual Samsung Syncmaster B2440 User Manual online for free. It’s possible to download the document as PDF or print. UserManuals.tech offer 1705 Samsung manuals and user’s guides for free. Share the user manual or guide on Facebook, Twitter or Google+.
SyncMaster B1740R/ B1740RX/ B1940M/ B1940MX/ B1940R/ B1940RX/ B1940MR/ B1940MRX/ B1940W/ B1940WX/ B2 240/ B2240X/ B2240W/ B2240WX/ B2240M/ B2240MX/ B2240MW/ B22 40MWX/ BX2240/ BX2240X/ B2340/ B2440L/ B2440LX/B2440 / B2440X/ B2440M/ BX2440/ BX2440X/ E1720NR/ E1720NRX/ E1 920/ E1920X/ E1920R/ E1920N/ E1920NX/ E1920NR/ E1920NRX/E 1920ENW/E1920NW/ E1920NWX/ E1920W/ E1920WX/ E2020/ E20 20X/ E2020N/ E2020NX/ E2220/ E2220X/ E2220N/ E2220NX/ E2220NW/ E2220W/ E2 220WX/ EX2220/ EX2220X/ E2320/ E2320X/ E2420L/ E2 420NL/BX2340/BX2340 X/BX2240W/EX1920/ EX1920X/EX1920W /EX2020/EX2020X LCD Monitor User Manual The color and the appearance may differ depending on the product, and the specificatio ns are subject to change without prior notice to improve the performance.
Table Of Contents MAJOR SAFETY PRECAUTIONS Before You Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Custody and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 INSTALLING THE PRODUCT Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Installing the Stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Installing the Stand for the Wall Mount . . . . . . . . . . . . . . . . . . . . . . . . 2-3 Connecting with a PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 Connecting an HDMI cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 Kensington Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6 Connecting Headphones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8 USING THE PRODUCT Setting the Optimal Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29
Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38 Standard Signal Mode Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39 Installing the Device Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40 Product Operating Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41 Using the Screen Adjustment Menu (OSD: On Screen Display) . . . 3-42 INSTALLING THE SOFTWARE Natural Color . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 MagicTune . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 MagicRotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 MultiScreen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 TROUBLESHOOTING Monitor Self-Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 Before Requesting Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 FAQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 MORE INFORMATION Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-26 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-27 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-29 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-30 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-31 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-32 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-33 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-34 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-35 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-36 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-37 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-38 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-39 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-40 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-41 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-42 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-43 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-44 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-45 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-46 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-47 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-48 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-49 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-50 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-51 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-52 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-53 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-54 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-55 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-56 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-57 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-58 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-59 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-60 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-61 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-62 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-63 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-64 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-65 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-66 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-67 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-68 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-69 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-70 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-71 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-72 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-73 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-74
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-75 Power Saving Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-76 Contact SAMSUNG WORLDWIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-77 Correct Disposal of This Product (Waste Electrical & Electronic Equipment) - Europe only . . . . . . 6-78
Major Safety Precautions1-1 1 Major Safety Precautions 1-1 Before You Start Icons used in this manual Using this Manual • Make yourself fully aware of the safety precautions before using this product. • If a problem occurs, refer to the Troubleshooting section. Copyright Notice The contents of this manual are subject to change without prior notice for performance improvement. Copyright © 2010 Samsung Electronics Co., Ltd. All Rights Reserved. The copyright of this manual is reserved by Samsung Electronics, Co., Ltd. The contents of this manual may not be partially or in whole reproduced, distributed or used in any form without the written permission of Samsung Electronics, Co., Ltd. The SAMSUNG logo and SyncMaster are the registered trademarks of Samsung Electronics, Co., Ltd. Microsoft, Windows and Windows NT are the registered trademarks of Microsoft Corporation. VESA, DPM and DDC are the registered trademarks of the Video Electronics Standard Association. The ENERGY STAR ® logo is the registered trademark of the U.S. Environmental Protection Agency. All other trademarks mentioned herein belong to their respective companies. IconNameMeaning Caution Indicates cases where the function may not work or the setting may be canceled. Note Indicates a hint or tip to operate a function.
Major Safety Precautions1-2 1-2 Custody and Maintenance External Surface and Screen Maintenance Securing the Installation Space • Keep the required distances between the product and other objects (e.g. walls) to ensure proper ventilation. Failing to do so may result in fire or a problem with the product due to an increase in the internal temperature. Install the product so the required distances shown in the figure are kept. The appearance may differ depending on the product. About persistent images • Displaying a still image for a long time may create a persistent image or stain on the screen. If you do not use the product for a long time, set the power-saving mode or screen saver. • Due to technological constraints of the LCD Panel manufacturer, the images generated by this product may appear either brighter or darker than normal by appr. 1ppm (parts per million) pixel. The number of sub-pixels of an LCD panel by size: The number of Sub-Pixels = Max. Horizontal Resolution x Max. Vertical Resolution x 3 Example) If the maximum resolution is 1600 x 900, the number of sub-pixels is 1600 x 900 x 3 = 4,320,000. Clean the product with a soft dry cloth. • Do not clean the product with an inflammable substance such as benzene or thinner or with a wet cloth. This may result in a problem with the product. • Do not scratch the screen with your fingernails or a sharp object. This may result in scratches or damage to the product. • Do not clean the product directly by spraying water onto the product. If water enters the product, it may result in fire, electric shock or a problem with the product. • A white stain may be generated on the surface of the high- glossy model due to the inherent characteristics of the material, if a supersonic humidifier is used. The appearance and the color may differ depending on the model. When installing the product with a stand When installing the product with a wall-mount
Major Safety Precautions1-3 1-3 Safety Precautions Icons used for safety precautions Meaning of Signs Power Related The following images are for your reference and may differ depending on models and countries. Warning IconNameMeaning WarningFailing to follow the precautions marked with this sign, may result in a serious injury or even a fatality. CautionFailing to follow the precautions marked with this sign, may result in a personal injury or property damage. Do not perform.Must be followed. Do not disassemble. The power plug must be unplugged from the wall outlet. Do not touch. Must be grounded to prevent electric shock. Avoid using a damaged power cord or plug or a loose power outlet. • Otherwise, it may result in electric shock or fire.Avoid connecting multiple electric appli- ances to a single wall outlet. • Otherwise, it may result in fire due to overheating of the wall outlet. Avoid plugging in or unplugging the power supply with wet hands. • Otherwise, it may result in electric shock.Plug the power plug in firmly. • Otherwise, it may result in fire. Make sure to connect the power cord to a grounded wall outlet (for insulation class 1 equipment only). • Otherwise, it may result in electric shock or injury.Avoid bending or twisting the power cord excessively and avoid placing heavy objects on the cord. • Otherwise, it may result in electric shock or fire due to a damaged power cord. Keep the power cord and the product away from a heater. • Otherwise, it may result in electric shock or fire.If the pins of the power plug or the wall out- let are covered in dust, clean it using a dry cloth. • Otherwise, it may result in fire.
Major Safety Precautions1-3 Caution Installation Related Warning Avoid unplugging the power plug while the product is operating. • Otherwise, it may damage the product due to electric shock.Make sure to use only the power cord sup- plied by our company. In addition, do not use the power cord of another electric appli- ance. • Otherwise, it may result in electric shock or fire. When unplugging the power plug from the wall outlet, make sure to hold it by the plug and not by the cord. • Otherwise, it may result in electric shock or fire. Connect the power plug to a wall outlet that can be easily reached. • When a problem occurs with the product, you must unplug the power plug to cut the power off completely. You cannot cut the power off completely using only the power button on the product. Avoid placing burning candles, mosquito- repellent or cigarettes on the product and installing the product near a heater. • Otherwise, it may result in fire.Ask an installation engineer or relevant company to install the product onto the wall. • Otherwise, it may result in injury. • Make sure to use the specified wall mount. Avoid installing the product in a badly-venti- lated location such as inside a bookshelf or closet. • Otherwise, it may result in fire due to internal over-heating.Keep a distance of at least 10 cm from the wall when installing the product for ventila- tion. • Otherwise, it may result in fire due to internal over-heating. Keep the plastic bags used to pack the product away from children. • If children place the plastic bags over their heads, they may suffocate.Avoid installing the product in a location that is unstable or exposed to excessive vibra- tions such as on an unstable or slanted shelf. • The product may fall and this may result in damage to the product or injury. • If you use the product in a location exposed to excessive vibrations, it may result in a problem with the product or fire.
Major Safety Precautions1-3 Caution Cleaning Related Avoid installing the product in a location exposed to dust, moisture (sauna), oil, smoke or water (rain drops) and installing it within a vehicle. • This may result in electric shock or fire.Avoid installing the product in a location exposed to direct sunlight and installing the product near a heat source such as a fire or heater. • This may shorten the product life cycle or cause fire. Avoid installing the product at an easily reachable height where children may reach it. • If a child touches the product, the product may fall and this may result in injury. • Since the front part is heavier, install the product on a flat and stable surface. Do not let the product drop while moving it. • This may result in a problem with the product or injury. Do not place the product face down on the floor. • This may damage the panel of the product. When installing the product on a console or shelf, make sure that the front of the product does not protrude out of the console or shelf. • Otherwise, this may cause the product to fall off and result in a malfunction or injury. • Make sure to use a cabinet or shelf suitable to the size of the product.When putting the product down, handle it gently. • Otherwise, it may result in a problem with the product or injury. If the product is installed in a location where the operating conditions vary considerably, a serious quality problem may occur due to the surrounding environment. In this case, install the product only after consulting one of our service engineers about the matter. • Places exposed to microscopic dust, chemicals, too high or low temperature, high humidity, such as airports or stations where the product is continuously used for a long time and so on. Since using a surfactant, which contains a large amount of alcohol, solvent or other strong chemicals, may result in the discoloration or cracking of the product exterior or the panel surface coming off, be sure to use the recom- mended cleansing agent only. You can purchase the recommended cleansing agent from a service center.