Built-In Diagnostics - Dell G3223Q User Manual

4. This box also appears during normal system operation if the video cable
becomesdisconnected or damaged.
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 the screen
abnormality you are experiencing is an inherent problem with your monitor, or with your
computer and graphics card.
To run the built-in diagnostics:
1. Ensure that the screen is clean (no dust particles on the surface of the screen).
2. Select OSD items of Self-Diagnostic in Others feature.
3. Press the Joystick button to start the diagnostics. A gray screen is displayed.
4. Observe if the screen has any defects or abnormalities.
5. Toggle the joystick once again until a red screen is displayed.
6. Observe if the screen has any defects or abnormalities.
7. Repeat steps 5 and 6 until the screen displays green, blue, black, and white
colors. Note any abnormalities or defects.
If you do not detect any screen abnormalities upon using the built-in diagnostic tool,
the monitor is functioning properly. Check the graphics card and computer.
The test is complete when a text screen is displayed. To exit, toggle the joystick control
again.
Dell 32 Gaming Monitor
Game Display Info
Brightness/Contrast DDC/CI
Input Source LCD Conditioning
Display Firmware
PIP/PBP Service Tag
Audio Self-Diagnostic
Menu Reset Others
Personalize Factory Reset
Others
Select
G3223Q
Troubleshooting | 61