Rockwell Automation 6156 Industrial 14 inch CRT Monitors - Manual (Page 21)

Industrial 14” CRT Monitors 21
Publication 6156-2.0
The following table can help you identify the potential cause of
problems you may encounter while using the 6156 Industrial
Monitor.
!
ATTENTION: When attempting to correct a problem,
do not change any adjustments located on the monitor
chassis’ left side (as viewed from the front of the
monitor). These adjustments are for factory trained
personnel using special test and alignment equipment.
Symptom Possible Cause Procedure
No Video No power Check to see if rear panel LED is illuminated; if not, check power wiring;
check for presence of proper voltage; check AC line fuse
Video cable problem Check for proper video cable installation; replace suspected faulty cable
Brightness/Contrast controls
misadjusted Adjust brightness/contrast controls
Images distorted or off-center
or Video adapter not compatible
or misconfigured Check to insure that the graphics adapter is a VGA type and is configured to
provide a display compatible with the monitor
or
Video not synced (screen rolls)
Monitor misadjusted Adjust width, horizontal position, and vertical position controls
y ( )
Video cable problem Check for proper video cable installation; replace suspected faulty cable
Sync select switch set
improperly (BNC Version only) Set sync select switch to correct source
Color appears wrong Video cable problem Check for proper video cable installation; replace suspected faulty cable Color appears wrong
Build-up of residual
magnetism Manually degauss unit
No keypad communications Keypad cable problem Check for proper cable installation; replace suspected faulty cable
No touchscreen
communications Touchscreen cable problem Check for proper cable installation; replace suspected faulty cable
Other touchscreen failures Various Refer to additional documentation provided with unit from touchscreen
manufacture
Troubleshooting