Users Guide

42 | Troubleshooting
Problem What you
experience
Possible solutions
No Input Signal
when user
controls are
pressed
No picture, the
LED light is white
•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 whether the signal cable is plugged in
properly. Connect the signal cable again, 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 dierent video formats (aspect ratio) of
DVDs, the monitor may display in full screen.
•Run the built-in diagnostics.
No image
when using
USB Type-C
connection
to computer,
laptop, and so on
Black screen •Verify if the USB Type-C interface of the device can
support DP alternate mode.
•Verify if the device required more than 45 W power
charging.
•USB Type-C interface of device cannot support DP
alternate mode.
•Set Windows to Projection mode.
•Ensure that the USB Type-C cable is not damaged.
No charging
when using
USB Type-C
connection
to computer,
laptop, and so on
No charging •Verify if the device can support one of 5 V/9 V/15
V/20 V charging proles.
•Verify if the device requires more than 45 W power
charging.
•Ensure that you use only Dell approved adapter or
the adapter that comes with the product.
•Ensure that the USB Type-C cable is not damaged.
Intermittent
charging
when using
USB Type-C
connection to
computer,
laptop, and so on
Intermittent
charging
•Check if the maximum power consumption of
device is over 45 W.
•Ensure that you use only Dell approved adapter or
the adapter that comes with the product.
•Ensure that the USB Type-C cable is not damaged.