Dell Sleep Apnea Machine Dell Sleep Apnea Machine User Manual

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Brightness Problems Picture too dim or too bright Reset the monitor to Factory Settings.
Adjust brightness & contrast controls via OSD.
Geometric Distortion Screen not centered correctly
Reset the monitor to Factory Settings.
Horizontal/Vertical Lines Screen has one or more lines
Adjust Phase and Pixel Clock controls via OSD.
Perform monitor self-test feature check and determine if these lines are also in self-test
mode.
Check for bent or broken pins in the video cable connector.
Run the built-in diagnostics.
Synchronization Problems Screen is scrambled or appears
torn
Reset the monitor to Factory Settings.
Perform monitor self-test feature check to determine if the scrambled screen appears in self-
test mode.
Check for bent or broken pins in the video cable connector.
Restart the computer in the safe mode.
Safety Related Issues Visible signs of smoke or sparks
Do not perform any troubleshooting steps.
Contact Dell immediately.
Intermittent Problems Monitor malfunctions on & off
Ensure that the video cable connecting the monitor to the computer is connected properly
and is secure.
Reset the monitor to Factory Settings.
Perform monitor self-test feature check to determine if the intermittent problem occurs in
self-test mode.
Missing Color Picture missing color Perform monitor self-test feature check.
Ensure that the video cable connecting the monitor to the computer is connected properly
and is secure.
Check for bent or broken pins in the video cable connector.
Wrong Color Picture color not good
Try different Color Preset Settings in Color Settings OSD. Adjust R/G/B value in Color Settings
OSD if the Color Management is turned off.
Change the Input Color Format to PC RGB or YPbPr in the Advance Setting OSD.
Run the built-in diagnostics.
Image retention from a static
image left on the monitor for a
long period of time
Faint shadow from the static
image displayed appears on the
screen
Use the Power Management feature to turn off the monitor at all times when not in use (for
more information, see Power Management Modes
).
Alternatively, use a dynamically changing screensaver.
Camera Problems
COMMON
SYMPTOMS
WHAT YOU
EXPERIENCE
POSSIBLE SOLUTIONS
No Power The camera is not
working and the LED is
off
If the monitor has no power, see Troubleshooting Your Monitor.
Verify if the camera is detected by Windows.
Camera is not
detected
The camera is not
working and the LED is on
Remove and insert the USB cable.
Poor Focus The camera captures Verify the camera lens is clean.

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