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Are your Dell monitor annoys you? If your Dell monitor has a black screen, fuzzy or blurry image then, running a diagnostic test will help you. Read this blog and know how to run a diagnostic test on a Dell monitor. STFC will help you (Self-Test Feature Check). • Dell monitor has a feature of STFC that allows you to check whether your Dell monitor is working properly. To run it on your Dell Monitor follow the following steps: • Turn off both PC and the monitor. • Unplug the video cable from the back of PC. • Turn on the dell monitor. • A kind of floating dialog box appears on-screen. Reset the monitor to factory settings using the on-screen menu. • Off the dell monitor and reconnect the video cable. • Then, turn it on(both PC & Dell monitor). • Check the video card(if the monitor screen still remains blank or black). BIST( Monitor Built-in Self Test). • If you notice some screen abnormality like flickering, distortion, color fade etc, it’s always ...