My monitor started going blank,but if I powered off then booted on,it would stay on for awile it kept doing this then one day the color got distorted and went blank again and now it won't come on at all....my hubby unplugged the monitor power cord and it came on again,but then the color faded an got distorted and then goes blank again...What can I do to fix this?....Thanks in advance,Maryfran
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Re: Monitor went blank
This is a generic symptom that could happen to any LCD
The following is a generic answer applicable to most.
Two possible causes are bad capacitors or a bad light inside
the LCD panel.
Open the unit and check to see if any of the capacitors in the power supply or
other boards look domed or vented on the top.
Replace any capacitors accordingly. Use the same value capacitors. Most often,
1000uF 16V or 25V, 470uF at 16 or 25V, 220uF at 16V or 25V.
If this doesn’t solve the problem, try checking the surface-mount transistors
on the inverter board that run the lights. Some times these transistors go bad.
Check the area for any cracked or overheated ceramic or mylar capacitors.
Also, you may have a bad light inside the panel. This is
tough to test without a spare light to use for troubleshooting.
You can take the panel apart and inspect the lamps but it is very tedious. It's
tough enough to get them apart and back together again never mind keeping the
layers clean. You have to try not to get any dust between the layers or you
will see it in the picture.
There are usually two light fixtures each of which holds two lamps. One fixture
is at the top and one at the bottom. Remove them one at a time and inspect the
lamps to see if any are broken or very dark on the ends. If one looks out of
place, it could be bad.
You'll have to find replacement lights on the net. It's not easy to replace
them, but if you've gone this far, good luck. You should be able to get generic
instructions off of the site that sells the lamps.
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If the power light does not turn color and stay's green on startup, it is not a power problem. It is most likely the inverter. If the unit is in warranty, send it out ASAP. Contact HP customer care by email and have the issue logged in.
If in warranty, they will send you a box by FedX second day and have repaired.
This is a 19" monitor and will not be worth paying for repairs if not in warranty.
is your CPU working properly? if that the case, your monitor is in need of a service.
reasons for why a monitor goes blank? Reason 1: Wetness
The number one reason why computer monitors go blank is - wetness. Believe it or not, when your computer monitor is exposed to humid air, sometimes water can condense and accumulate in the monitor. This causes the monitor to malfunction and go blank. I've had this happen to my desktop PC at least three times before. What you need to do is to leave the monitor alone for some time and allow the water to evaporate. That usually solves the problem.
Reason 2: Faulty Graphics Card
The next reason why your computer monitor goes black is due to a faulty graphics card. The best way to detect this kind of problem is to connect up a new monitor to your PC, then check if you have a blank screen. If you continue to have a blank screen, then it's likely your video card is faulty.
Reason 3: Faulty RAM
This one is less obvious and less common, but it can happen. You might sometimes get bad RAM modules which prevent your PC from booting up even to the basic BIOS startup screen. To detect this kind of problem is more troublesome, you might need to remove those RAM modules and insert them into another computer.
Reason 4: Loose Connections
Another reason why your monitor goes blank is due to loose connections. The connection from the monitor to the mains is usually a culprit, as is the connection between the monitor and the video card. Check those connections before you declare your computer monitor as faulty.
Reason 5: A Short Circuit In The Motherboard
And the final reason why your computer monitor goes blank? It's possibly because of a short circuit in the motherboard. This is the most undesirable outcome of course, as you might have to replace your entire motherboard. However, it's possible that this can happen - so keep your fingers crossed and hope it doesn't happen to you.
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if this is a CRT monitor the problem is your flyback. It is located at the rear part of the monitor (inside) and it very dangerous to touch. It has a several thousand of stored power on it and may cause death if you don't know how to handle it.
Advice: for practicality, LCD monitors now a days are much cheaper than before. several advantage of this are low electricity consumption, not painful to eyes (if long use), save up more space and sharp and clear screen.
if the monitor works fine on your laptop, the problem definitely is at the computer, possibly with the video card (if it is using one). it could have loose connection, or parts might have damages. it seems the problem is intermittent so electronic component of the video card could have parts partially damages or leaky components. if your still using the motherboards built in video out put, try installing a new video card.
try to start your pc in safemode with vga mode with thjis faulty monitor
hope you know how to do it
start pc (powerr on)
then continuously press F8 key then it will show you boot menu
select safemode with command prompt
then if it show desktop on screen this means your monitor is having problem with resolution try to downgrade your monitor's resolution
rightclik on desktopgo to properties
here you can find screen resolution make it to 800X 600 just for one time
then restart your pc it will auto select proper screen resolution