Samsung 750P User Manual (user Manual) (ver.1.0) (English) - Page 9

English Setting up Your Monitor No Connection Check Signal Cable Figure 2. Monitor self test screen The three boxes inside the border are red, green and blue. Failure of any of the boxes to appear indicates a problem with your monitor. This box also appears during normal operation if the video cable becomes disconnected or damaged. 4 Turn off your monitor and reconnect the video cable; then turn on both your computer and the monitor. If your monitor screen remains blank after using the previous procedure, check your video controller and computer system; your monitor is functioning properly. Getting Help If your monitor does not display an image, check your cable connections and refer to Troubleshooting on page 23. Warm-up Time All monitors need time to become thermally stable the first time you turn them on each day. Therefore, to achieve more accurate adjustments for parameters, allow the monitor to warm (be on) for at least 30 minutes before making any screen adjustments. 7