Samsung S24C770T User Manual

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39Troubleshooting GuideChapter 07Requirements Before Contacting Samsung Customer Service CenterBefore calling Samsung Customer ServiceCenter, test your product as follows. Ifthe problem persists, contact SamsungCustomer Service Center.Testing the ProductCheck 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 iscorrectly 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 The following message indicates that the product is functioning properly.Checking the Resolution and FrequencyIn a mode that exceeds the supported resolution (refer to supported resolutions),the following message will appear briefly.― The displayed resolution may vary depending on the product or PC systemsettings.1920 X 1080 60HzIf the screen remains blank, check the PCsystem, video controller and cable.