Rockwell Automation 6157-C User Manual - Manual (Page 40)

40 Industrial 19" CRT Monitor
Publication 6157-UM001A-EN-P
You can refer to this table to help identify the cause and offer a solution
to a problem. This table lists typical problems you may encounter.
Table E
Troubleshooting Table
Symptom Possible Problem Action
No screen image and the green power
LED is not lit. Power cord not connected. Open power switch. Reconnect power cord at
monitor and at AC outlet. Close power switch.
No power available at AC outlet. Test AC outlet by plugging in a lamp or other
known good device.
Power cord faulty. Replace power cord. Refer to Page 39.
Blown fuse. Have monitor serviced.
Monitor faulty. Have monitor serviced.
The green power LED is lit, but no screen
image when power switch is closed. Screen saver or power
management feature activated. Disable screen saver by activating an input to the
host system. Press a key or move the mouse to
cancel power save mode.
Brightness and contrast controls
not properly adjusted. Adjust brightness and contrast controls.
The amber status LED is lit, and no
screen image. Monitor not synched to video
source. Check for proper video cable installation. Replace
suspected faulty cable.
Check to ensure that video source is operating
within the monitor’s range.
Monitor faulty. Have monitor serviced.
No raster visible even when brightness
and contrast are set full ON. Monitor out of adjustment or
faulty. Have monitor serviced.
Raster dimly visible with brightness and
contrast controls set full ON, but no
display present Video cable problem. Check for proper installation of video cable(s).
Refer to installation instructions.
Replace suspected faulty cable(s).
Fault in video source. Test video source by connecting to another
monitor that is known to be operational.
Fault in monitor. Have monitor serviced.
Display is present, but garbled or rolling Monitor not synched to video
source. Refer to installation instructions.
Check for proper video cable installation. Replace
suspected faulty cable.
Check to ensure that video source is operating
within the monitor’s range.
Display is present and stable, but appears
“wrapped” at one side or otherwise not
properly centered or sized. Size and position controls not
properly adjusted. Adjust controls for proper size and position of
display. Refer to operator instructions
Display is present and stable, but missing
some color(s) Video cable problem. Check for proper video cable installation.
Replace suspected faulty cable.
Check video source.
Fault in monitor. Have monitor serviced.
Display is present and stable, but colors
are not pure Monitor requires degaussing. Manually degauss the monitor. Refer to
Page 37.
Enclosure requires degaussing. Manually degauss the enclosure. Refer to Page
37.
Troubleshooting