Rockwell Automation 6186-Mxxx Industrial Monitors User Manual - Manual (Page 46)

46 Publication 6186M-UM001J-EN-P - July 2008
Chapter 5 Troubleshoot the System
Troubleshooting Solutions The troubleshooting table identifies the cause and possible solution to
a problem. The table lists typical problems you may encounter.
Troubleshooting
Symptom Action
No picture Verify that the power cord is connected.
Test outlet by plugging in a properly functioning device.
Replace power cord.
Have monitor serviced.
’No Sync’ or ’No Signal, going to sleep’ appears Check the video cable connection between the computer and monitor.
Use the self-test feature.
Screen is blank Disable screen saver.
Adjust the Brightness and Contrast settings using the appropriate OSD.
Replace suspected faulty cable.
Video Mode is not supported Check the maximum resolution and the frequency on the video port of your computer.
Picture is scrambled Check the video cable connection between the computer and monitor.
Perform the Auto Setup procedure.
Picture is not clear Adjust Fine and Coarse settings as needed using the appropriate OSD menu.
Picture is fuzzy Perform LCD Monitor reset.
Eliminate unnecessary accessories such as video extension cables.
Vertical shaded bars on screen image Image Lock is not properly adjusted. Reset the Horizontal positioning using the
appropriate OSD.
Display is present, but ’bars’ appear across it or roll
through it Eliminate ground loops by connecting monitor and computer to the same power
source location, or installing an ac isolation transformer.
Picture bounces or has wavy oscillations
Picture has blurry streaks or ’ghosting’ to the right
of objects on the screen
Check the video cable connection between the computer and monitor.
Adjust the Contrast settings using the appriate OSD.
Images are too bright or too dark Adjust the Brightness and Contrast settings using the appropriate OSD.
Image is not stable Check for proper video cable installation. Replace suspected faulty cable.
Screen jitter or noisy video Check for proper video cable installation. Replace suspected faulty cable.
Reroute cables or replace suspected faulty cables.
Check host and monitor grounding.
Monitor out of adjustment. Redo Coarse and Fine adjustments using the appropriate
OSD.
Image is dim, even with brightness, and contrast
controls set full UP Check for proper video cable installation. Replace suspected faulty cable.
Test video source by connecting to another monitor that you know is operational.