Monitor
Symptoms: blank
screen; unit comes on and off intermittently
Hardware checklist:
Check the wall socket or surge strip to see if they
are bad (sometimes a surge strip will have good and bad outlets). Try
the monitor in another location to see if the problem is really the
monitor.
Check the power cable to the back of the monitor.
Wiggle it at the detachable end next to the monitor. If the monitor
flickers or comes on briefly change the cable with another one.
Sometimes the original power cable is a little small on that end and a
different cable will make it work properly.
Check the pins of the data cable to make sure pins are
not bent on either end. A single bent pin can cause severe loss of
lumens on the monitor.
Do not service monitors yourself...they carry stored
electrical current inside the case in the capacitor that can kill, even
after it has been unplugged.
If the monitor works OK at a second computer then you
have other problems on the original computer. Possibilities include:
dead video card or bad connector into video card; or perhaps incorrect
video settings in Windows.
Video Display or Video Card Problems:
Symptoms: three beeps on booting the computer, 16
color display, tiny screen, large icons.
Three PC speaker beeps upon booting indicates video
card problems. Check inside the case to see if the card is dislodged in
the slot.
A number of display problems can be caused by an
incorrect software video driver. Compare that machine with an identical
machine in the Device Manager to see if the video card is misidentified.
If the machine is unique open the case and write down all the
identifying marks on the card. Go to http://www.windrivers.com and find
the correct driver.
Check in Display Properties (rightclick on the
wallpaper and left click on Properties) to see if you can change from 16
color mode to higher colors (look in the Settings tab).
A tiny screen may indicate too high a resolution. Look
in Display Properties/Settings and change it to a smaller Screen Area.
You may need to boot up in Safe Mode to accomplish this. Lightly and
repeatedly tap the F8 button while the computer is booting. You have two
seconds after it says Starting Windows to see the menu and choose Safe
Mode.
Huge icons and menus means the Scheme was changed in
Display Properties/Appearance. Change it back to Windows Standard and
hit OK. On some machines you may not be able to see the OK button and
will need to use the Tab/Arrow and enter keys to find that button. If
you still can't get the OK button to work boot into Safe Mode and you
will be able to change it