Samsung PE40C User Manual page 267

13
13.1 Requirements Before Contacting Samsung Customer
Service Centre
13.1.1 Testing the Product
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.
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13.1.2 Checking the Resolution and Frequency
"Not Optimum
(refer to Supported Resolutions).
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Troubleshooting Guide
Before calling Samsung Customer Service Centre, test your product as follows. If the problem persists,
contact Samsung Customer Service Centre.
Power off both the PC and product.
Disconnect all the cables from the product.
Power on the product.
If "No Signal" is displayed, the product is operating normally.
If the screen remains blank, check the PC system, video controller and cable.
Mode" will briefly be displayed if a mode that exceeds a supported resolution is selected
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