Troublesho oting
116 Nio® medical display systems
Problems and solutions
Problem description Possible tests or solutions
Screen remains black • Please check the installation
procedure in this manual
• If the LED at the front is orange, the
display is in stand-by
• Check in the Windows Display
Properties if the display controller
video heads are attached. If not,
there will be no image on the
screen.
• The external power supply may be
defective
•
Image exhibits noise or
interference
• The video cable may be of poor
quality
• DVI video cable may not be firmly
connected to the PC or to the
display
Image contains missing
pixels
• A number of missing pixels may be
normal (inherent in LCD technology)
Image contains not
enough grayscales
• You may have installed the driver
software with an inappropriate
selection of Palette Settings (Static
Gray with or without System
Colors). Install the driver software
again using a different setting for
Palette Settings.
The PC does not start up • Check the CMOS settings in the PC
BIOS
• The display controller may not be
firmly seated in the PCI / AGP
connector