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Product-speci c problems
Problem
What you experience
Screen image is
The image is centered
too small
on the screen, but
does not ll the entire
viewing area
Cannot adjust
OSD does not appear
the monitor
on the screen
with the
joystick control
on the rear of
the monitor
No Input Signal
No picture, the LED
when user
light is white
controls are
pressed
The picture
The picture cannot ll
does not ll the
the height or width of
entire screen
the screen
No image
Blank screen
when using DP
connection to
the PC
No image
Blank screen
when using
TM
Thunderbolt
4 connection
to computer,
laptop, and so
on
6. Trouble Shooting Instructions
Possible solutions
• Check the Aspect Ratio setting in the
Display menu OSD.
• Reset the monitor to factory settings.
• Turn o 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 di erent 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 certi ed to. Download
and install the latest graphics card driver.
• Verify if the Thunderbolt
of 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.
TM
4 interface
TM
4 cable is
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