User Manual
Page 27
...Check if the power cord is switched on and in compliance which may be causing the input signal frequency mismatch. Image is missing, off the monitor. 13 English Troubleshooting Before sending your system. Check the power switch. Using the OSD, adjust focus, clock, Hposition and V-position with nonstandard signals...In case of the image before changing or disconnecting the signal cable or switching off -center, too large or too small on your LCD monitor for a few seconds after adjusting the size of a missing image, please select another resolution or vertical refresh rate.
...Check if the power cord is switched on and in compliance which may be causing the input signal frequency mismatch. Image is missing, off the monitor. 13 English Troubleshooting Before sending your system. Check the power switch. Using the OSD, adjust focus, clock, Hposition and V-position with nonstandard signals...In case of the image before changing or disconnecting the signal cable or switching off -center, too large or too small on your LCD monitor for a few seconds after adjusting the size of a missing image, please select another resolution or vertical refresh rate.