ViewSonic VP2290B User Guide - Page 24

The screen is blank and the power indicator is blinking amber every second The display mode of the computer is outside the range of the display • Reconfigure the computer to use a supported display mode. • The video graphics card is defective. Replace it. • The computer is defective. Replace it. The screen is blank and the power indicator is blinking amber every 0.25 second The display fan is not working • Make sure that the power cord is firmly plugged into the electrical outlet. • Make sure that the power adapter cord is firmly connected. If the symptom remains, call your retailer or ViewSonic. • The video graphics card is defective. Replace it. • The computer is defective. Replace it. The image appears to There are noises in be smeared the video signal • 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. A few dots are missing, discolored, or inappropriately lighted The LCD contains over 27,000,000 thin-film transistors (TFTs). A small number of dots may be missing, discolored, or lighted on the screen. This is an intrinsic characteristic of the TFT LCD technology and is not an LCD defect. 21 ViewSonic VP2290b