Check the power LED first. If the LED is on but there's no image, the issue is likely related to the input signal or cable connection rather than power.

Troubleshooting Steps:

1. Check the Power LED Status

• LED is OFF: Ensure the power cable is firmly seated and the physical power switch (if available) is turned on. Try a different wall outlet.

• LED is Amber / Blinking: The monitor has power but no signal detected. Proceed to Step 2.

• LED is Blue / White: The monitor is active. If the screen is still black, check brightness settings or your PC's graphics card.

2. Verify Signal Connection

• Unplug and re-plug the video cable (HDMI / DP / USB-C).

• Bypass Adapters: Remove any docking stations or converters and use a direct cable connection for testing.

• Cross-Test: Connect the monitor to another device or try a different cable to rule out hardware failure.

3. Confirm Input Source

• Use the monitor's buttons to access the [Input Select] menu and manually select the port you are currently using.

4. Perform a Factory Reset

• If the OSD menu is accessible, navigate to [Memory Recall] or [All Recall] to reset the monitor to default settings.