My Japannext screen turns black and displays a dotted gray pattern every 5 seconds - it needs to be restarted, what should I do?

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Accepted Answer

This symptom - black or dotted gray screen appearing every 5 seconds, requiring a power off/on - generally indicates a signal connection issue or a gradual hardware failure.

Initial diagnostics to perform:

Check the signal cables - The PDF mentions to "check if the pins of the signal cable are bent or if the cable is damaged." Pay particular attention to the HDMI, DisplayPort, and USB-C connectors to see if they are damaged or not properly seated.
Test another input source - Use the E button (Input Source) to switch between HDMI, DisplayPort, or USB-C. If the problem persists across all ports, it's less likely to be a cable issue.
Eliminate interference - Other electronic devices may cause disruptions. Temporarily isolate the monitor from phones, Wi-Fi routers, or wireless devices.
Reset via the OSD menu - Press the M button (Menu) to access the settings. Look for the factory reset option (“Reset” or “Factory Reset”). This will restore the signal synchronizations.
Test another cable/computer - If you have another cable of the same type (HDMI 2.1 if you were using 6K), try it. This will isolate whether it's the monitor or the cable/PC.

If the problem persists after these steps: There is a high likelihood of LCD panel failure or display circuitry failure in the monitor itself. Contact Japannext support or check your warranty for repair or replacement.

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