Viewsonic VP2290B ユーザーズマニュアル

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 

be smeared

There are noises in 

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.