Screen turns black and blue LED is blinking

LG LED TV has no picture (black screen) but still sound ...

www.tomsguide.com/answers/.../led-picture-black-screen-sound-fixed.ht...

7 days ago - My 32' LG LED TV has suddenly lost picture! The sound is all right but theScreen is pitch black. After switching it on the picture flashes for a second and thenthe ... LG LED TV has no picture (black screen) but still sound - can it be fixed? Tags: ... a touch on the screen reveals nothing so it's not the back light.

Monitor going black after 2 seconds [Solved] - CCM.net

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Oct 9, 2012 - Brightness goes down, display draws less juice, and you can at least use .... it's the LCD's Inverter ... you have to replace it for it to go back to ... If the screen is turning off every two seconds or so and then it comes ... i turn my tv on it comes right on, but then after a few minutes turns off, .... Digital Trends for LG. No display in monitor
Jan 11, 2013
Ps3 and hdmi cable
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TV with Black Blank Screen Repair How to Troubleshoot ...

? 3:16
https://www.youtube.com/watch?v=kFdVi2ejfzA

the blinking light of the power led means that the start voltage was not working properly, if you are a trained tech you can repair this monitor, but if you are a simple user it's dangerous, there is high voltage inside. cause of blinking light :

1. puffed capacitor on the power supply
2. broken FBT on the inverter board
3. broken transistor on the inverter board

solution:

1. replace or repair the power board
2. replace or repair the inverter

your LCD monitor has bad ccfl lamps or inverter circut..

Ahh the same thing has happened to my monitor! Mine unfortunately is 1 month over warranty. Apparently this is a common problem with this model!

Have you tried booting the machine into safe mode? turn off the pc and try inserting a rescue boot disc to see if it will go that route.

the grpahics from wowc burnd the sides of your monitor. your pretty much screwed if you keep playing that game

Hi My screen developed exactly the same problem. It appears to be a hardwear problem associated with the screen it's self. continuity test is ok on the lead so I took it back to the shop under warranty and hey presto, the replacement works. I don't know what the problem is but there are a number of other folks on another thread with the same problem and their entries are dated May 09 too.  Dave

i think it can be the capacitor problem, open monitor an look for swollen capacitors. if you will find them swollen or mso 9]> Normal 0 false false false MicrosoftInternetExplorer4 mso 9]> mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman"; mso-ansi-language:IT;} @page Section1 {size:8.5in 11.0in; margin:56.7pt 42.5pt 56.7pt 85.05pt; mso-header-margin:.5in; mso-footer-margin:.5in; mso-paper-source:0;} div.Section1 {page:Section1;} --> mso 10]> /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} loosing the electrolyte, signs of burn, change them

If you plugged power cable, and Power button on monitor is not working, something's wrong with the eletronics. Go for a refund.

The power supply is the first thing that the 110v electric line goes into. The invertor is the next item past the power supply, or sometimes contained within it. I do not thing monitors are a DIY repair.      First substitute a different monitor to confirm that it is, in deed , the monitor and not the video card.