Dell P2012H Monitor - Manual (Page 37)

Check for bent or broken pins in the video cable connector.
Run the built-in diagnostics.
NOTE: When using DVI-D input, the Pixel Clock and Phase adjustments are not available.
Synchronization Problems Screen is scrambled or appears
torn
Reset the monitor to Factory Settings.
Perform Auto Adjust via OSD.
Adjust Phase and Pixel Clock controls via OSD.
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 Change the Color Setting Mode in the Color Settings OSD to Graphics or Video depending
on the application.
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.
Product Specific Problems
Specific Symptoms What You Experience Possible Solutions
Screen image is too small Image is centered on screen,
but does not fill entire viewing
area
Check the Scaling Ratio setting in Image Setting OSD
Reset the monitor to Factory Settings.
Cannot adjust the monitor with
the buttons on the front panel
OSD does not appear on the
screen
Turn off the monitor, unplug the power cord, plug back, and then turn on the monitor.
Check whether OSD is locked. If yes, press and hold button above power button for 10
seconds to unlock. See Menu Lock .
No Input Signal when user
controls are pressed
No picture, the LED light is
green. When you press "+", "-"
or "Menu" key, the message
"No S-Video input signal", or
"No Composite input signal", or
"No Component input signal"
appears
Check the signal source. Ensure the Computer is not in the power saving mode by
moving the mouse or pressing any key on the keyboard.
Check to make sure Video Source to S-Video, Composite or Component is powered and
playing video media.
Check whether the signal cable is plugged in properly. Re-plug the signal cable if
necessary.
Reset the computer or video player.
The picture does not fill the
entire screen.
The picture cannot fill the
height or width of the screen
Due to different video formats (aspect ratio) of DVDs, the monitor may display in full
screen.
Run the built-in diagnostics.
NOTE: When choosing DVI-D mode, the Auto Adjust function will not be available.
Universal Serial Bus (USB) Specific Problems
Specific Symptoms What You Experience Possible Solutions
USB interface is not working USB peripherals are not
working
Check that your monitor is turned ON.
Reconnect the upstream cable to your computer.
Reconnect the USB peripherals (downstream connector).
Switch off and then turn on the monitor again.
Reboot the computer.
Some USB devices like external portable HDD require higher electric current; connect
the device directly to the computer system.
High Speed USB 2.0 interface
is slow.
High Speed USB 2.0
peripherals working slowly or
not working at all
Check that your computer is USB 2.0-capable.
Some computers have both USB 2.0 and USB 1.1 ports. Ensure that the correct USB
port is used.
Reconnect the upstream cable to your computer.
Reconnect the USB peripherals (downstream connector).
Reboot the computer.
Dell™ Soundbar Problems
Common Symptoms What You Experience Possible Solutions
No Sound No power to Soundbar - the
power indicator is off
Turn the Power/Volume knob on the Soundbar clockwise to the middle position; check if
the power indicator (Blue LED) on the front of the Soundbar is illuminated.
Confirm that the power cable from the Soundbar is plugged into the adapter.