Dell D2020H User Manual page 42

Synchronization
problems
Safety related issues
Intermittent problems
Missing color
Wrong color
Image retention from a
static image left on the
monitor for a long period of
time
|
42 Troubleshooting
Reset the monitor to factory settings ( Factory Reset).
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 safe mode.
Do not perform any troubleshooting step.
Contact Dell immediately.
Ensure that the video cable connecting the monitor to the
computer is connected properly and is secure.
Reset the monitor to Factory Settings (Factory Reset).
Perform monitor self-test feature check to determine if the
intermittent problem occurs in self-test mode.
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.
Change the Color Setting Mode in the Color Settings OSD to
Graphics or Video depending on the application.
Preset Modes in Color settings OSD. Adjust R/G/B
value in Custom Color in Color settings OSD.
Change the Input Color Format to RGB or YPbPr in the Color
settings OSD.
Run the built-in diagnostics.
all times when not in use (for more information, see
management modes.
Alternatively, use a dynamically changing screensaver.
Power