Samsung LS24F9NSM-ZA - Manual (Page 69)

Troubleshooting 5-1
5 Troubleshooting
5-1 Product Self-Diagnosis
• You can check if the product is working properly using the Self-Diagnosis function.
• If a blank screen is displayed and the Power LED blinks even if the product and the PC are properly connected, perform
the self-diagnosis function according to the procedures below.
1. Turn the product and the PC off.
2. Remove the D-Sub cable from the product.
3. Turn the product on.
4. If the product is working properly, the <Check Signal Cable.> message appears.
In this case, if a blank screen is displayed again, make sure that there is no problem with the PC and the connection.