TROUBLESHOOTING MONITOR PROBLEMS
BASIC TROUBLESHOOTING PROCEDURES:
Loose or poorly connected monitor cable.
The monitor or monitor cable may be damaged.
Environmental factors in the area of the monitor may be causing distortion.
The monitor may be clicking or flashing as it synchronizes with the video
on the system.
A screen saver or power saver may be temporarily blanking the screen.
These are general troubleshooting steps that may resolve or more accurately
diagnose monitor problems.
The first things to do when troubleshooting is to make sure that the
monitor is powered on and connected correctly to the video. If the video
is blurry, fuzzy, etc. as soon as you power up the system, the problem
may be with the monitor cable connection. Power down the system and unplug
the monitor cable from the system. Look at the end of the cable and check
for any bent or pushed in pins. Reattach the cable to the computer and
power up the system. Always insure that the monitor is plugged into a functioning
outlet. Anytime you feel the monitor may damaged, try connecting to another
system to see if it functions.
SCREEN SAVERS AND POWER SAVERS:
Screen savers and power savers can emulate monitor problems. If the
screen appears to blank out or freeze at regular intervals of time, disable
all screen savers in Windows and DOS. If your system board and video card
support power management standards and the power management features are
enabled, try disabling the features to see if the problem persists.
Electrical interference from other devices such as televisions, radios,
microwave ovens, etc. can cause your monitor screen to "jump" or "shake."
Interference can also make the display appear blurry or fuzzy. If the system
is close to a fluorescent light, turn the light off or move the light away
from the monitor to see if the video clears up. If there is a fan near
the system, turn the fan off or move it away from the monitor. If the system
is plugged into a surge protector, unplug the system and reconnect it to
the wall outlet to see if the video improves. Try degaussing the monitor
or adjusting the pin cushioning of your monitor. If possible, move the
system to another location to see if the distortion clears up. Try turning
the monitor 90 degrees in either direction from where it is.
MONITOR MAKES "CLICKING" NOISE OR "FLASHES" SOMETIMES:
If the monitor only "clicks" or "flashes" when entering windows or specific
programs, the monitor is simply synchronizing itself with the video that
you have chosen. There is nothing wrong with the monitor.
RESOLVING MONITOR PROBLEMS:
Insure that the monitor has been correctly configured with the onboard
video or video card. If the monitor does not power on or the light on the
front of the system appears amber only, the video may not be communicating
with the monitor. If possible, try the monitor on another system to see
if the problem is with the monitor or with the computer system.
POWER TO THE MONITOR:
Always insure that the monitor is plugged into a working outlet and
turned on before attempting to troubleshoot the problem. On the front of
the monitor there is a green LED light that should appear if the monitor
is receiving power. If you have an Energy Star compatible monitor the light
appears as a yellow or amber color. The Energy Star compliant monitors
will not display the green light until they receive the video signal from
the system. If the power light does not come on, try plugging the monitor
directly into a working outlet and bypass any surge protector. If the power
light still does not come on, try unplugging the cable that attaches the
monitor to the computer system to see if the power light appears. Make
sure that the power cable does not appear twisted or have bent connections.
If your monitor has a removable power cable, swap the power cable with
the one for the computer system. Once the green light on the monitor comes
on, check the knobs or buttons on the monitor to insure that the brightness
or contrast is not turned down completely.
SCREEN SAVERS AND POWER SAVERS:
If you notice that about the same amount of time passes between when
the screen blanks out and a screen save should appear, try disabling the
screen saver. If you are using a Windows screen saver, from the Program
Manager double click on the Main group. In the Main group, double click
on the Control Panel then double click on the Desktop icon. On the left
hand side of the screen is a box that says Screen Saver. There will be
a rectangular box that has a down arrow with an underline. Click on the
down arrow and scroll through the list to select none. Once this is complete,
click on the OK button and return to Windows. If you are running a screen
saver such as After Dark or Screen Craze, contact the manufacturer or vendor
to help you disable that screen saver.
Screen blanking can often be caused by a power saver features being
initialized in the CMOS, AUTOEXEC.BAT and CONFIG.SYS files. If you look
at the monitor LED light when the screen blanks and the power light is
an amber or yellow color, the power saver features are enabled. If this
appears to be causing problems with applications that you are running,
you may want to disable these features.
If you booted clean and the power saver still blanked the monitor, the
CMOS on your system has power saver features built in. To check your CMOS
for this setting:
Power Management : Dissabled
As soon as your computer begins to re-start You should see a message "Hit
DEL if you want to enter setup"., begin pressing the <DEL> key until
you enter the CMOS setup.
In CMOS use the arrow key to highlight Power management Setup and press
Be sure that the power management option is dissabled as shown below. You
can modify the settings by highlighting them with the arrow key and using
the <PAGE UP> or <PAGE DOWN> keys.
Highlight Save settings and exit and press <ENTER>.
Allow your computer to restart and enter Windows 95 normally.