User manual CTX VL510

[. . . ] Only shielded cables should be used to connect I/O devices to this equipment. You are cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment. 3 VL510 User's Manual CE Statement This device complies with the requirements of EMC (Electromagnetic Compatibility), and with Low Voltage directive. Safety Precautions 1. Please read carefully all of these instructions below and keep the manual for later use. Please install the swivel base below this product before using it. [. . . ] Do not attempt to service this product yourself, as opening or removing covers may expose you to dangerous voltage points or other risks. Refer all servicing to service personnel. Unplug this product from the wall outlet and refer servicing to qualified service personnel under the following conditions. 5 VL510 User's Manual A. When the power cord or plug is damaged or frayed. If liquid has been spilled into the product. If when the operating instructions are followed, the product has been exposed to rain or water. If the product does not operate normally, 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 operation. If the product has been dropped or the cabinet has been damaged. If the product exhibits a distinct change in performance, indicating a need for service. Notice : Actual safety specifications please refer to the label on the back of monitor. 6 VL510 User's Manual Recommendation for Optimum Performance When setting up and using the monitor, pay special attention to the following for optimum performance: Do not use your monitor against a bright background or where sunlight or other light sources will shine directly on the screen. The monitor should be placed just below eye level (10°~15° ) for optimum viewing. Set the monitor's brightness to match the ambient room light. For optimum focus, the contrast control should not be set to the maximum level unless the input signal level is extremely low. Also, the brightness control should be set to a point where the overall background area just begins to disappear. Allow adequate ventilation around the monitor so that the heat from the monitor can properly dissipate. Neither the monitor itself, nor any other heavy objects, should rest on the power cord. Damage to the power cord can cause fire or electrical shock. Keep the monitor away from high-capacity transformers, electrical motors, or other strong magnetic fields. Your monitor should not be used in damp, dusty, or dirty areas. Handle your monitor with care when transporting it. [. . . ] Press " ", " " button to adjust the trapezoid distortion of the picture (4) When the fourth LED indicator is lighted Press " ", " " button to adjust the parallelogram distortion of the picture. 14 VL510 User's Manual Trouble Shooting Before calling an authorized service center, please check that the items below are properly connected or set. In case of using a non-standard signal, please check the pin assignments and the signal timing of your adapter with the specifications outlined in sections "Pin Assignment Table" and "Preset Timing Chart". Problem No picture All LED indicators flash Items to check Check the color of the power LED indicator; if it is orange, then the monitor is in a power saving mode. Check if the horizontal/vertical frequency are out of range. Maximize the Brightness and Contrast controls. The video card may not be seated properly. [. . . ]