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Product-specific problems
Problem
Screen image is
too small
Cannot adjust
the monitor
with the
joystick control
on the rear of
the monitor
No Input Signal
when user
controls are
pressed
The picture
does not fill the
entire screen
No image
when using DP
connection to
the PC
No image
when using
Thunderbolt
TM
4 connection
to computer,
laptop, and so
on
102
|
Troubleshooting
What you
experience
The image is centered
on the screen, but
does not fill the entire
viewing area
OSD does not appear
on the screen
No picture, the LED
light is white
The picture cannot fill
the height or width of
the screen
Blank screen
Blank screen
Possible solutions
• Check the Aspect Ratio setting in the
Display menu OSD.
• Reset the monitor to factory settings.
• Turn off the monitor, unplug the monitor
power cable, plug it back, and then turn on
the monitor.
• Check the signal source. Ensure that 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.
• Due to different video formats (aspect
ratio) of DVDs, the monitor may display in
full screen.
• Run the built-in diagnostics.
• Verify which DP standard is your Graphics
card is certified to. Download and install
the latest graphics card driver.
• Verify if the Thunderbolt
the device can support DP alternate mode.
• Verify if the device required more than
EPR 140W power charging.
• Set Windows to Projection mode.
• Ensure that the Thunderbolt
not damaged.
4 interface of
TM
4 cable is
TM
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