| Symptom |
Possible Solution |
| Screen is
blank and the power-on indicator is
not on. |
Make sure the power cord
is properly connected to a working AC power source.
Make sure the power switch is in the On position.
Turn off and unplug the monitor from the power outlet for
one minute, reconnect the monitor to the outlet, and turn
on the monitor.
Check the signal cable's connector pins
for damage. |
| Screen is
blank and the power-on indicator is
on. |
Make sure the video cable
is properly connected. Make sure no pins are bent or missing
on the video connector.
Make sure the keyboard cable is properly connected.
Turn off and unplug the monitor from the power outlet for
one minute, reconnect the monitor to the outlet, and turn
on the monitor.
Make sure the video card is seated completely in the
proper bus slot. |
| Picture is scrambled. |
Make sure the graphics
mode and frequency of the video card are supported by the monitor.
Even within the proper range, some video cards may have a
sync pulse that is too narrow for the monitor to
synchronize correctly. |
| Color is not uniform. |
Degauss the monitor.
Move electrical (magnetic) devices away from the monitor.
If the monitor is close to another monitor, move the
monitors further apart. If there is electrical wiring
behind the wall, move the monitor away from the wall. |
| Screen image
is not centered or sized properly. |
Adjust the size, shape,
or position of the display. |
| White lines show red or
blue shades at edges. |
Degauss the monitor.
This error is caused by poor convergence, which is not a user-adjustable
property. |
| Picture is
fuzzy. |
Adjust the contrast and
brightness controls.
Adjust the moire setting. |
| Picture is ghosting. |
Make sure the signal cable is properly connected. |
| Picture
bounces or has wavy oscillations. |
Move electrical
(magnetic) devices away from the monitor. If the monitor
is close to another monitor, move the monitors further apart.
If there is electrical wiring behind the wall, move the
monitor away from the wall. |
| Wavy or
elliptical (moire) pattern is visible. |
Adjust the moire setting. |
| The message SIGNAL OUT
OF RANGE appears on the
screen. |
Make sure the video
synchronization signal is specified for the monitor. |
| The message CHECK SIGNAL CABLE appears
on the screen. |
Make sure the signal cable is properly
connected to the computer. |
