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11 Troubleshooting Guide
11
Troubleshooting Guide
11.1 Requirements Before Contacting Samsung Customer
Service Center
11.1.1 Testing the Product
Before calling Samsung Customer Service Center, test your product as follows. If the problem persists,
contact Samsung Customer Service Center.
Check if your product is operating normally by using the product test function.
If the screen remains blank while the power LED blinks even when the product is correctly connected to
a PC, perform product testing.
1 Power off both the PC and product.
2 Disconnect all the cables from the product.
3 Power on the product.
4 If "No Signal" is displayed, the product is operating normally.
If the screen remains blank, check the PC system, video controller and cable.
11.1.2 Checking the Resolution and Frequency
"Not Optimum Mode" will briefly be displayed if a mode that exceeds a supported resolution is selected
(refer to Supported Resolutions).