ViewSonic VP2290B User Guide - Page 23

Troubleshooting Is something wrong? If you suspect that something is not working correctly, you should: 1. Turn on the computer and display. 2. Set the brightness control ( ) to the proper position. 3. Make sure that all cables are securely connected. 4. Disable the computer's screen saver program, if it is enabled. 5. Set the display mode to the supported display mode. 6. If you still have a problem, go to the symptom list below and find the symptom that most resembles yours. Symptom list Before calling your retailer or ViewSonic, find the symptom that most resembles yours, and try the suggested action. You may be able to solve the problem yourself. Symptom The screen is blank and the power indicator is off The screen is blank and power indicator is steady green The screen is blank and the power indicator is steady amber Possible cause No power to the display Brightness may be too low Suggested action • Make sure that the electrical outlet and the display are both switched on. • Make sure that the power cord is firmly plugged into the electrical outlet and the power supply unit. • If the power cord plug has a removable fuse, replace it. • Try another power cord. • Try another electrical outlet. • The video graphics card is defective. Replace it. • The computer is defective. Replace it. Adjust the brightness The display is in Standby mode The video cable is not connected • Press any key on the keyboard or move the mouse to restore operation. • Check the Power Management software on your computer. • Make sure that the signal cable is firmly connected. • Make sure that no pins are bent in the signal cable connector. • The video graphics card is defective. Replace it. • The computer is defective. Replace it. ViewSonic VP2290b 20