Dell flat screen started flashing, green light was blinking then screen went blank and green light is on. Tried unplugging etc...time for a new one?

My lg 37lc7d is having the same problem. My backlight is on but no display. Also the standby light blinks several times then the screen goes on but it's just all black. No a/v

some transistors on the board have shorted they supply power to the inverter to run the lamps, they power is not cut off intermittently and the protection circuit has stopped the monitor. the fix is here

http://josepino.com/other_projects/?howto-repair-dell
goo dluck if you want it fixed for you let me know

One reason that this is happening could be that it is on Power saving mode. This happens when the LCD monitor detecs an incorrect timing then thats the time that the LCD goes blank and the power botton starts to blink.

what you need to do is to turn the computer off. Unplug cables attach to the LCD make sure it is also off, once done press the power botton for a couple of 30secs to a minute and then release. After doing so re-connect all the cables and make sure that both ends is tight and secure once everything is ok turn the computer on same with the monitor to check if it solves the problem.

It came back on when we crossed the border back into the USA from Canada.

You definitely have a bad lamp. Sony rates the lamp life at between 4000 and 8000 hours. There are 3 things that effect the lamp life, listed in order of importance:
1) number of times the lamp is turned on and off. Every time the lamp is first fired, it takes life off the lamp. Customers I see that turn the TV on in the morning, leave it on all day and then turn it off on the evening can get up to 12000 lamp hours
2) ventilation. Be sure you have at least 6 inches of open space all the way around the set and that the vents are clear of dust and debris.
3) power. If the power is interrupted when the set is on, there cannot be a proper cool down cycle. The fans will run after you turn the set off to properly cool it down, if the power is lost this cannot happen. If your power is unreliable, buy a small UPS to let the set finish a cool down cycle

Occasionally a lamp will faill before the average lamp time due to being defective. from your purchase date it sounds like you got about average lamp time. Be sure to purchase AN ORIGINAL SONY LAMP as a replacement, becuase the aftermarket lamps are bad news, Be sure to rate this solution. Thanks!

JH77,

Hi...Ya! It's seems your LCD monitor backlight inverter just run out of lucks... it's burnt out. Need to replaced a new inverter. Have a nice day!

TV STARTS UP AND GOES BLANK SOUND NO PICTURE

i hve the same problem. I turned on my Sharp Aquos lc-32d62u HDTV last night for the first time, but it is black and a blinking green light.
did you find a solution?

Unplug the cable from your PC, if the monitor shows a test image, the monitor is fine and the problem is with your graphic card. If you dont see nothing on-screen after unpluging the cable from the PC, then the monitor in damaged. Send it to repair.

Try first unplugging the monitor and the computer from the wall for 12 to 24 hours. If this does not work, hook up another monitor to the puter to see if the problems with the puter or the monitor.