Troubleshooting │ 613. Press and hold Button 1 on the front panel for 5 seconds. A gray screenappears.4. Carefully inspect the screen for abnormalities.5. Press Button 1 on the front panel again. The color of the screen changes tored.6. Inspect the display for any abnormalities.7. Repeat steps 5 and 6 to inspect the display in green, blue, black, white, andtext screens.The test is complete when the text screen appears. To exit, press Button 1 again.If you do not detect any screen abnormalities upon using the built-in diagnostic tool,the monitor is functioning properly. Check the video card and computer.Common problemsThe following table contains general information about common monitor problemsyou might encounter and the possible solutions:CommonsymptomsWhat youexperiencePossible solutionsNo Video/PowerLED offNo picture • Ensure that the video cableconnecting the monitor and thecomputer is properly connected andsecure.• Verify that the power outlet isfunctioning properly using any otherelectrical equipment.• Ensure that the power button ispressed fully.• Ensure that the correct input source isselected in the Input Source menu.