Dell U2422H 23.8" 16:9 IPS Monitor User Manual
Page 88
88
│
Troubleshooting
3.
Toggle the Joystick to highlight the Diagnostics icon, then press the Joystick,
and a gray screen appears.
4.
Carefully inspect the screen for abnormalities.
5.
Toggle the Joystick
up
. The color of the screen changes to red.
6.
Inspect the display for any abnormalities.
7.
Repeat steps 5 and 6 to inspect the display in green, blue, black, white and
text screens.
The test is complete when the text screen appears. To exit, toggle the Joystick
up
again.
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