ViewSonic VP2290B User Manual page 24

The screen is blank
and the power
indicator is blinking
amber every second
The screen is blank
and the power
indicator is blinking
amber every 0.25
second
The image appears to
be smeared
A few dots are
missing, discolored,
or inappropriately
lighted
21 ViewSonic VP2290b
The display mode of
the computer is
outside the range of
the display
The display fan is not
working
There are noises in
the video signal
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.
• Reconfigure the computer to use a supported
display mode.
• The video graphics card is defective. Replace
it.
• The computer is defective. Replace it.
• 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.
• 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.