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Chapter 6. Troubleshooting
Checkpoints
Installation issue (PC mode)
The screen keeps switching on and off. Check the cable connection between the product and PC, and ensure the connection is secure.
Blank spaces are found on all four sides of the screen
when an HDMI or HDMI-DVI cable is connected to the
product and PC.
The blank spaces found on the screen have nothing to do with the product.
Blank spaces on the screen are caused by the PC or graphics card. To resolve the problem, adjust the screen size in
the HDMI or DVI settings for the graphics card.
If the graphics card settings menu does not have an option to adjust the screen size, update the graphics card driver
to the latest version.
(Please contact the graphics card or computer manufacturer for further details about how to adjust the screen
settings.)
PC is shown in Source when a PC is not connected. PC is always shown in Source irrespective of whether or not a PC is connected.
Screen issue
The power LED is off. The screen will not switch on. Check the cable connection between the product and PC, and ensure the connection is secure.
No Cable Connected is displayed on the screen. Check that the product is connected correctly with a cable.
Check that the device connected to the product is powered on.
Not Optimum Mode is displayed. This message is displayed when a signal from the graphics card exceeds the product’s maximum resolution and
frequency.
Refer to Standard signal mode table and set the maximum resolution and frequency according to the product
specications.
The images on the screen look distorted. Check the cable connection to the product.
The screen is not clear. The screen is blurry. Adjust Coarse and Fine.
Remove any accessories (video extension cable, etc) and try again.
Set the resolution and frequency to the recommended level.
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