Lately, it is necessary to press power button on remote for five or so minutes. Eventually it will come on. The red light flickers when you touch the button 'Power' and eventually it will stay on and the TV screen lights up and there is no problem until we turn it off and after 1/2 hour or so, it will again take numerous attempts to get the screen on. For the past 2 days it will not come on at all. No TV screen and no flickering light.
Pulled mine a part to look things over , power supply on mine has capacitors that look like they are going bad , would not be that hard to pull the power supply, and put in some new ones. i let my kid have it to play games on, as long it's on, it works, so leave it on.
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Turn the TV off with the front-mounted power button, not the
remote. Unplug the TV's power cord from the wall outlet. Let an hour
pass before plugging the cord back into the wall outlet. Turn the TV
back on with the front-mounted power button and wait until it has fully
restarted. Bring up a TV channel to see if the image being presented on
the LCD screen is no longer flickering. A momentary power surge can
cause the circuitry inside the LG-brand LCD TV to function erratically.
Unplug the video cable from the video connection on the back
or side panel of the LG TV. If more than one video cable is connected
to the TV, disconnect all of them. Disconnect the other end of the video
cable from the video source device that it's attached to -- a DVD or
Blu-ray player, or a satellite receiver or cable box. Blow off the
connections on the video source device and on the back or side panel of
the TV with bursts of compressed air. Reinsert one end of the video
cable into the video source device and the other end into the video
input that it was connected to. Turn the TV back on with is remote to
see if the picture is now free of flickering. A loose or partially
connected video cable can cause the LCD TV's screen to flicker when
presenting an image.
Turn the TV off and unplug its power cord from the wall
outlet. Place a power conditioner next to the wall outlet. Plug the
power conditioner's power cord into the wall outlet. Plug the TV's power
cord into one of the AC sockets on the power conditioner. Turn the
power conditioner on. Turn the TV on to see if the picture is now free
of flickering. The RF signals in the electric line that the LG TV is
drawing power from can cause flicking through interference patterns
The flickering is most likely the florescent backlight having a hard time starting, Just like in a light fixture, as it gets old, it takes longer to warm up to get full functionality.
If under warranty, contact Dell for a replacement, if not, then when it becomes untenable, replace the monitor. Prices are dropping drastically, an new 20 or 22 In can be bought for about $150 or less
Resetting the TV If the buttons on the remote AND the buttons on the TV case do not work (channels do not change and you cannot open or navigate the menu), the TV has stopped responding. Reset the TV as follows:
NOTE: Some TVs have a reset button. If available and accessible, try using the reset buttons before using the steps below. Using the reset buttons can save time.
1.Unplug the TV power cord from the power outlet. 2.Unplug any connected devices (DVD, Set-top boxes, etc...) 3.Press and hold the TV power button for five seconds. 4.Plug the TV power cord back into the power outlet and turn on the TV. 5.Open the on-screen menu to confirm that the TV is responding again. 6.Turn off the TV and reconnect the devices. 7.Turn on the TV.
mi tv turns on but only in color blue,next tv turn off red light apear one time and second time flash twice,whit mi remote control power on tv turs on ,then whit mi remote control send change chanes or any other funcion the tv turns off,letme now if you solve yor problem ,and i apreciate if you have some tips for me,thank.