Basic Computer Monitor Problem Troubleshooting
Basic computer monitor problem
troubleshooting means just that, the price of computer monitors
has come right down over the past year so unless you have a
laptop
or a new expensive screen, generally it’s cheaper to replace it
than get it repaired once we have ascertained that it’s a fault
with the monitor of course.
Back Light Failure
One of the most common faults with the later generation of
screens, this includes laptops as well is when the back light
fails, if this happens you can still see the screen image but
it’s very dark.
If the backlight has gone on a laptop then it’s a question of
how new the laptop is, how much it would cost to replace,
against the cost of the backlight repair, which may mean
replacing the whole screen. (If you are familiar with
dismantling laptops then many laptop screens can be purchased
from sites such as eBay for a fraction of the new price)
If the monitor
appears to be totally dead more of often it’s usually the
power
cable
to the plug which has blown.
If the
monitor is on but has no image, and you’ve checked to make sure
the backlight has not failed (as above) then it’s worth checking
the following.
Is the video
cable securely plugged in between the monitor and the computer?
Does the video
cable have any signs of damage? Breaks in video cables can
happen, check against a working cable.
What’s the
length of the computer cable? Depending on the power of the
video signal, the maximum cable length could be less than 5
metres, especially if you are attempting to display your
computers image on a TV
Switch off the
monitor and computer, leave for 30 seconds and switch both on
together, on some older monitors if the monitor is on before the
computer then it may not detect the video signal from the
computer.
Does the
monitor display text (NO SIGNAL) this simply means it cannot
detect a signal from the computer, reasons for this include?
Power off the
monitor and computer, leave for 30 seconds and power back on.
Has the
computer or the monitor changed? Is so it may mean the computer
does not like the resolution or refresh rate that the computer
is trying to get the monitor to run at, from Windows at start-up
hit the F8 key this will allow you to enter the computer is VGA
or safe mode, once you’ve logged in you can change the video
setting from Control Panel > Display to one that’s compatible
with the monitor.
What type of
video input are you using on the monitor? Many monitors have
more than one video input, if so your monitor will have a select
button on the front to cycle between monitors.
Make sure you
are using the latest version of video drivers available for your
video card / monitor.
Still have a
computer monitor problem ? Search for more
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