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10
Troubleshooting Guide
10.1 Requirements Before Contacting Samsung Customer
Service Center
10.1.1 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 is turned off and the power indicator blinks even though the product is properly connected
to a PC, perform a self-diagnosis test.
1
Power off both the PC and product.
2
Disconnect the cables from the product.
3
Power on the product.
4
If the message
If the screen remains blank, check the PC system, video controller and cable.
10.1.2 Checking the Resolution and Frequency
For a mode that exceeds the supported resolution (refer to "11.3 Standard Signal Mode Table"), the
message
Not Optimum Mode
10.1.3 Check the following.
The screen keeps switching on and off.
The power LED is off. The screen will not switch
on.
The message
Check Signal Cable
will appear for a short time.
Installation issue (PC mode)
Check Signal Cable
appears.
appears, the product is working normally.
Check the cable connection between the product
and PC, and ensure the connectors are locked.
(Refer to "3.3 Connecting and Using a PC")
Screen issue
Check that the power cable is connected
properly.
(Refer to "3.3 Connecting and Using a PC")
Check that the cable is properly connected to the
product.
(Refer to "3.3 Connecting and Using a PC")
Check that the device connected to the product is
powered on.
10 Troubleshooting Guide
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