User manual ACER H243HX

[. . . ] · The LCD screen has effective pixels of 99. 99% or more. It may include blemishes of 0. 01% or less such as a missing pixel or a pixel lit all of the time. · Due to the nature of the LCD screen, an afterimage of the previous screen may remain after switching the image, when the same image is displayed for hours. In this case, the screen is recovered slowly by changing the image or turning off the Power Switch for hours. EN-1 H243HX Information for your safety and comfort Safety instructions Read these instructions carefully. [. . . ] Unplug this product from the wall outlet and refer servicing to qualified service personnel when: · the power cord or plug is damaged, cut or frayed · liquid was spilled into the product · the product was exposed to rain or water · the product has been dropped or the case has been damaged · the product exhibits a distinct change in performance, indicating a need for service · the product does not operate normally after following the operating instructions ----------------------------------------------------------------------------------------------------Note: Adjust only those controls that are covered by the operating instructions, since improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore the product to normal condition. LCD Pixel Statement The LCD unit is produced with high-precision manufacturing techniques. Nevertheless, some pixels may occasionally misfire or appear as black or red dots. This has no effect on the recorded image and does not constitute a malfunction. Tips and information for comfortable use Computer users may complain of eyestrain and headaches after prolonged use. Users are also at risk of physical injury after long hours of working in front of a computer. Long work periods, bad posture, poor work habits, stress, inadequate working conditions, personal health and other factors greatly increase the risk of physical injury. Incorrect computer usage may lead to carpal tunnel syndrome, tendonitis, tenosynovitis or other musculoskeletal disorders. The following symptoms may appear in the hands, wrists, arms, shoulders, neck or back: · numbness, or a burning or tingling sensation · aching, soreness or tenderness · pain, swelling or throbbing · stiffness or tightness · coldness or weakness If you have these symptoms, or any other recurring or persistent discomfort and/or pain related to computer use, consult a physician immediately and inform your company's health and safety department. The following section provides tips for more comfortable computer use. Finding your comfort zone Find your comfort zone by adjusting the viewing angle of the monitor, using a footrest, or raising your sitting height to achieve maximum comfort. Observe the following tips: · refrain from staying too long in one fixed posture · avoid slouching forward and/or leaning backward · stand up and walk around regularly to remove the strain on your leg muscles EN-3 H243HX · · · · take short rests to relax your neck and shoulders avoid tensing your muscles or shrugging your shoulders install the external display, keyboard and mouse properly and within comfort able reach if you view your monitor more than your documents, place the display at the center of your desk to minimize neck strain Taking care of your vision Long viewing hours, wearing incorrect glasses or contact lenses, glare, excessive room lighting, poorly focused screens, very small typefaces and low-contrast displays could stress your eyes. The following sections provide suggestions on how to reduce eyestrain. Eyes · Rest your eyes frequently. Do not expose the monitor to rain, excessive moisture, or dust. Do not cover the ventilation slots or openings of the monitor. Always put the monitor in a place where there is adequate ventilation. Avoid placing the monitor against a bright background or where sunlight or other light sources may reflect on the face of the monitor. Handle with care when transporting the monitor. Refrain from giving shock or scratch to the screen, as screen is fragile. · · LEANING YOUR MONITOR lease carefully follow the below guidelines when cleaning the monitor. lways unplug the monitor before cleaning. se a soft cloth to wipe the screen and cabinet front and sides. EN-7 H243HX Power saving The monitor will be driven into Power Saving" mode by the control signal from the display controller, as indicated by the amber-color power LED. State ON Power Saving Mode LED Light Blue Amber The power saving states will be kept until a control signal has been detected or the keyboard or mouse is activated. The recovery time from Active OFF state back to ON state is around 3 seconds. DDC To make your installation easier, the monitor is able to Plug and Play with your system if your system also supports DDC protocol. The DDC (Display Data Channel) is a communication protocol through which the monitor automatically informs the host system about its capabilities, for example, supported resolutions and corresponding timing. [. . . ] Clear each old status of Autoconfigurationand set the color temperature to Cool. Save user adjustment and OSD disappear. N/A N/A N/A N/A N/A Exit EN-19 H243HX TROUBLESHOOTING Before sending your LCD monitor for servicing, please check the troubleshooting list below to see if you can self-diagnose the problem. (VGA Mode) Problems Current Status Remedy LED ON · Using OSD, adjust brightness and contrast to maximum or reset to their default settings. Check if AC power cord is properly connected to the monitor. [. . . ]