3M ChassisTouch 450 Installation Manual - page 31
Maintenance and troubleshooting
3M Touch Systems Proprietary Information
21
Is the monitor receiving a valid video signal from the host
computer? Make sure that:
!
Host computer is powered on.
!
Video cable is connected properly and securely to monitor and
computer.
!
LED on the rear of the display is lit green. If it is not, try pressing
the Power button on the rear of the monitor.
!
No pins are bent in the video cable connector.
!
Video card is seated firmly in the card slot in the host computer.
!
Host computer is using a supported display mode and video input
from the video card that are within the range of refresh rates for
the display (see "Table A" on page 8).
Is the monitor in energy saver mode?
!
If the LED on the rear of the monitor is flashing orange-to-green,
to restore operation try one or more of the following:
!
Touch the screen.
Note: If the touch screen is in a setting where safety is an issue
and the recommended settings to the Display Properties dialog
box have been made (see “Safety recommendations” on
page 12), a first touch to reactivate the backlights will not
activate the touch screen until it is touched a second time (see
“Testing the monitor” on page 13).
!
Press any key on the keyboard.
!
Move the mouse.
Are the brightness and contrast settings too low?
1. Use the host computer’s video driver to set brightness, contrast,
and other video settings.
2. Use the monitor’s on-screen display controls to Auto adjust the
display settings.
3. If the brightness and contrast (or other display settings) are still not
satisfactory, use OSD menus and sub-menus to modify display
features (see “OSD controls” on page 16).
Abnormal image
Make sure that:
!
Video input from the video card falls within the refresh rate of the
display (see "Table A" on page 8).
!
Video cable is connected properly and securely to the monitor and
the host computer.
Colors of image
are abnormal
Make sure that:
!
Video cable is connected properly and securely to the monitor and
the computer.
!
No pins are bent in the video cable connector.
!
Set colors using your video driver and then auto adjust the
monitor’s OSD settings (for details, see “Controls for adjusting the
Disturbances on
the screen
!
Make sure that the video display settings are correct (see “Controls