Before calling Samsung Customer Service Center, test your product as follows. If the problem persists, contact Samsung Customer Service Center.
If the screen remains blank, check the PC system, video controller and cable.
Testing the Product
Check if your product is operating normally by using the product test function.
If the screen is turned off and the power indicator blinks even though the product is properly connected to a PC, perform a
Power off both the PC and product.
Disconnect the cables from the product.
Power on the product.
If the message Check Signal Cable appears, the product is working normally.
Checking the Resolution and Frequency
For a mode that exceeds the supported resolution(refer to Standard Signal Mode Table), the message Not Optimum Mode will appear for a short time. ――The displayed resolution may vary depending on the product or PC system settings.