21 ViewSonic VP2290b
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.
