My monitor is a 19" Envision LCD widescreen. It's brand new, barley 7 1/2 months old. About a week ago I was on my computer and it went black on me out of nowhere. I heard everything in the background still and all the lights indicating the computer and monitor is on were on.
I turned the monitor off then on again, and it showed everything perfectly until about 2 seconds then it just went black again. I tried this monitor on a completely different computer and it did the same exact thing. I took out my video card, still did the same thing, re-installed drivers, still did the same thing, restarted my computer, still did the same thing, changed power cords. Still, it did the same thing. I'm sure that it is not my computer and it is the monitor.
I have no viruses and haven't tampered with my monitor in any way. It sits in the same spot as it always does, has never fallen, had anything spilled in it, is not kept on all day (I turn off my monitor whenever I'm not in front of it) etc. It happened out of no where and I'm quite upset since it's pretty much new.
Can anyone tell me what this may be, how to fix it, approximate costs, etc.?
If your LCD display is turning itself off due to aging capacitors, an easy work around is to turn the brightness down! Brightness goes down, display draws less juice, and you can at least use it. As it warms up, you should be able to gradually turn the brightness back up, although probably not all the way.
Sometimes this problem manifests itself as a display that turns itself off after a few seconds or will turn itself off and back on over and over again.
My suspicion is that this is a capacitor problem. If the screen is turning off every two seconds or so and then it comes back for another few, that could mean that the capacitors are not charged (or in other words, the capacitors are not able to retain the charge long enough to transfer it to the other components).
My suggestion hence, is to isolate the power board (the one that has the socket for the power input), check if any of the capacitors (the tall cylindrical structures) have bulging tops, if they do, try to replace them (Novices please bear the polarity in mind when you play with capacitors) with ones with higher rated ones (especially the voltage rating, normally these would be rated for 25 volts, so try getting one that is one step higher.TYGA
Mine is doing the same thing but it only does it when I turn the computer on if I keep turning the screen off and on again for a while it works after that but if I turn the computer off I have to go though turning screen on and on again- again!!!
I just fixed this issue on a Magnovox 19" LCD. My first suspicion (like most) was that it was the PSU since it seemed power-related. However:
Checked the logic board for bulging caps and replaced C112, C117, & C118 with great success!
FYI: I guess if you don't have a soldering iron, you won't bother, and if you do, you know what a cap looks like, but either way, caps are rated in Farads, so you'll find a rating on caps such as 1000uF (1000 micro Farads) or 200pF etc. Other than that you can look up their distinct (albeit varied) appearance on wikipedia. Make sure that your replacement caps have the same value and an equal or (better yet) higher voltage than the broken ones. Do not confuse milli with micro!
Got this solution from FixYa and it sounds like it's pretty common among these crappy items they're putting out now, hopefully this will help with many different brands.
This problem is because of LCD back light faulty.If u observe the black screen near U can see dull Display .This is because of LCD Backlight power off after 2 second .You can resolve the problem by replace the lcd back light but its not economical.
Its rarely the entire inverter and normally just a cap or two and maybe a fuse. just need a soldering iron and the parts. depends if youre electronically inclined. if you do it with just the parts it could cost you between 10-50c. buying the inverter is between 5-35$, but of course thats my cost, dunno what they would rip you. if there are no bulging caps that you can see there is also a chance they you have a bad lcd itself. and sadly those cost more to replace than the unit costs new.
well tell me the screen isnt on warranty ? if it is then go to where you have bought it and then change it there. if it isnt on warranty then sometimes lcd screen gets spoilt when there is humidity thats the disadvantage with lcd screen and also if there is an inteference zone nearby. as for the repairs I cant tell you exactly as I dont know the degree of damage inside the lcd screen. but repairing these screens is somewhat costly and its better to buy another one.