76
8 Troubleshooting Guide
8
Troubleshooting Guide
8.1
Requirements Before Contacting Samsung Customer
Service Center
8.1.1
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 cable from the product.
3
Power on the product.
4
If the
Check Signal Cable
message appears, the product is working normally.
If the screen remains blank, check the PC system, video controller and cable.
8.1.2
Checking the Resolution and Frequency
For a mode that exceeds the supported resolution (refer to "9.3 Standard Signal Mode Table"), the
message
Not Optimum Mode.
will appear for a short time.
8.1.3
Check the followings.
Installation issue (PC mode)
The screen keeps switching on and off.
Check the cable connection between the product
and PC, and ensure the connection is secure.
(Refer to "2.2 Connecting and Using a PC")
Screen issue
The power LED is off. The screen will not switch
on.
Check that the power cable is connected correctly
(Refer to "2.2 Connecting and Using a PC")
The message
Check Signal Cable
appears.
Check that the cable is properly connected to the
product. (Refer to "2.2 Connecting and Using a PC")
Check that the device connected to the product is
powered on.
