Dell UltraSharp 49 U4924DW 49" WQHD Ultrawide Curved Monitor - Manual (Page 78)

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Operating the monitor
LCD
Conditioning
Helps reduce minor cases of image retention.
Depending on the degree of image retention, the
program may take some time to run. You can enable
this feature by selecting
On .
Firmware Displays the firmware version of your monitor.
Service Tag Displays the service tag of your monitor. This string is
required when you look for phone support, check
your warranty status, update drivers on Dell's
website, etc.
Self-Diagnostic Press the joystick to initiate the self-diagnostic
process.
1. When initiated, a gray screen appears.
2. Carefully inspect the screen for abnormalities.
3. Press the joystick. The color of the screen
changes to red.
4. Inspect the display for any abnormalities.
5. Repeat steps 3 and 4 to inspect the display in
green, blue, black, white and text screens.
The test is complete when the text screen appears.
To exit, press the joystick again.
Reset Others Resets all settings under the Others menu to the
factory preset values.