Built-In Diagnostics - Dell P2423D User Manual

5. 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 you use the previous procedure, check
your video controller and computer, because your monitor is functioning properly.

Built-in diagnostics

Your monitor has a built-in diagnostic tool that helps you determine if any screen
abnormality you experience is an inherent problem with your monitor, or with your
computer and video card.
To run the built-in diagnostics:
1. Ensure that the screen is clean (no dust particles on the surface of the
screen).
2. Press the Joystick buttton to launch the OSD Menu Launcher and move the
Joystick up to select "
3. Move the Joystick to select Others > Self-Diagnostic to initiate the self-
diagnostic process.
│
64 Troubleshooting
" to open Main Menu.
2X Monitor
Brightness/Contrast
Display Info
Input Source DDC/CI
LCD Conditioning
Color
Firmware
Display
Service Tag
Menu
Self-Diagnostic
Personalize
Reset Others
Others
Factory Reset
Modes
Select
Exit