User guide

20 Matrox Graphics Card – User Guide
Problem Wrong color balance, screen image off-center, or no picture at all
1
Cause Your monitor video controls may be improperly set.
1
Solution Adjust your monitor controls (brightness, contrast, and so on). For more information, see
your monitor manual.
2
Cause Your monitor may not be properly connected.
1
Solution Make sure you’re using the correct connectors and that all connectors are properly fastened.
2
Solution Make sure the monitor power cable is firmly in place.
3
Solution Make sure the connection to the back of the monitor is firmly in place.
If your monitor uses BNC input, make sure the
Red (
R ), Green ( G ), Blue ( B ), Horizontal Sync
(
HSYNC – white or gray wire), and Vertical Sync
(
VSYNC – black wire) connections are firmly in
place and plugged into the correct input.
3
Cause If your monitor uses BNC input, one or more connection settings may be incorrect.
1
Solution Set each of your monitor RGB input and sync switches (if available) to 75 ohms, with the sync
set to “external”. These controls are usually switches on the back of your monitor.
4
Cause If display problems occur after the startup screen of your operating system, your software
monitor settings may be incorrect.
1
Solution Make sure correct software monitor setings are selected.
If your primary display is still usable, see “Monitor setup”, page 12. Otherwise, see the next
troubleshooting item.
BNC connectors