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Posted on Jan 02, 2017
I have the same problem. If the computer goes into power save mode for the monitor the VA912b won't come back on. The LED blinks and it makes a repeating "bloop" noise.
I have no solution other then what was stated. Turn it off for several minutes and turn it back on. Sometimes you have to try this repeatedly before it works. (I have two VA912b monitors that I bought at the same time and both are connected to the same pc - this only happens to one of them)
Posted on Feb 14, 2008
Hi this is the way how to examine
what's wrong with your LCD monitors. After you turned it on and the screen
blacked out or stopped working, you have to check that if you can see the image on the screen or
not by shining a flashlight into the screen, not directly but find the best
angle to the screen and take a look very closely. If you can see the icons or
any image, there will be a minor problem. This is because of the lamps inside
screen. Some of them were broken and it is very easy to replace. If you cannot
see anything on the screen, there'll be some problems with inverter board. If you
have soldering tool and want to fix it by yourself, check the caps first. It
may cause this problem. Some caps might show leaking or burn spot on the board
because of too high temp. If you don't have soldering tool, you better go get a
technician to do so.
Hope this help!! If anything I can help you with, feel free to let me know.
Posted on Mar 26, 2008
SOURCE: screen is black
This is most likely the power inverter board in the monitor - this is common in many monitors. If it started taking longer and longer to display an image, and the power light is blinking on-and-off, that's the problem. You can confirm that it's the monitor and not your computer or the cable by plugging in another monitor if you have one to try. If it's under warranty, send it back, if not, there are inverter boards for many common models of LCD monitors that are replaceable The board can run anywhere from $50 on up. Depending on how old your monitor is and how much you've invested into it, you may find it better to just replace it with a gently used one from ebay.
Posted on Jun 06, 2009
SOURCE: Samsung 740N blank screen
That sounds like a capacitor or maybe a mosfet died. Usually only capacitors 'sing'.
first you need to confirm it is the backlight section that died. simple visual inspection. You want the monitor plugged into a running booted computer. If you have anything that will do dual screen that lets you know what and where something should be on the screen being tested.If not anything will work. Let the computer boot up and then you will need to get close and near an edge. What you are looking for is a ghost image of the normal desktop. You may even be able to see the mouse move around. This is the actual picture produced by the lcd. It is very faint. The backlight acts somehwat like a projector bulb and shines through the lcd panel. So if you can see anything then your backlight or the backlight power are the problem. I'm in BC so its hard to reccomend any place for parts. Most of the ones I have fixed the parts were out of California.Cost should be about $70-$100.
If the backlight isn't the problem then it is usually a power section problem. The parts are cheap but the time to find the bad one can cost a bit. If you can find a place to fix it get an estimate. Then check out the replacement price of a new monitor. The prices have dropped and sometimes it isn;t cost effective to repair even a backlight on some models.
Posted on Apr 26, 2010
Testimonial: "Sounds like he went right to the problem. I think I can take it from here. "
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