AIRIS Pragma N890 User Manual page 94

Bad dots appear on the display at all times.
A small number of missing, discolored, or bright dots on the screen
are an intrinsic characteristic of TFT LCD technology. It is not
regarded as a LCD defect.
Term definition:
Bright dots When the LCD screen is lighted, dots appear bright at
Dark dots When the LCD screen is lighted, dots appear black at
Distance between
defective dots
Adjacent defective dots Defective dots within a radius of 10 mm.
Defective dots
LCD Type
Bright Dark
14.1" XGA N<5 N<7
15" XGA N<8 N<8
18" XGA N<9 N<15
Resolution cannot be adjusted to desired setting.
Make sure that the video driver is installed correctly.
The external monitor displays nothing.
Make sure that the monitor is turned on.
Make sure that the monitor's signal cable is properly connected.
Switch the display to the monitor by pressing
display through the settings in Display Properties.
The TV displays nothing.
Make sure that the TV is turned on and switched to the video mode.
Make sure that the TV's signal cable is properly connected.
Switch the display to the TV by changing the settings in Display
Properties in Windows.
8-6
a dark area. Red/green/blue bright dots also count.
bright areas.
The minimum distance between two defective dots.
Distance between Two adjacent
defective dots defective dots
Bright Dark Bright
<15mm <15mm <2 Pairs <2 Pairs Not allowed
<15mm <15mm <2 Pairs <2 Pairs Not allowed
<5mm <20mm <3 Pairs <5 Pairs Not allowed
Three or more adjacent
defective dots
Dark Bright Dark
Not allowed N<9
Not allowed N<10
Not allowed N<20
Fn + F5, or change the
Troubleshooting
Total