L13V36 Dark Screen, picture can be seen in bright light.
I just purchased a used L13V36 monitor TV. Sometimes when I turn it on the picture is bright and normal for just a second or two. The sound works but the picture is really dark 99.9% of the time. I can see it (barely) in bright floresent light. I tried the menus setting and turned the contrast and brightness up and down. Can this be repaired or should I just chuck it out? I'm guessing it's the back light. Thanks for any response. Jake
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Re: L13V36 Dark Screen, picture can be seen in bright...
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it sounds like the back light on both monitors are going bad it might be better to call a repair man and get him to look at it see if it is going to be worth fixing i think it might be better then buying a new one at the prices now days
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Check the voltages that comes to the back light inverter, especially, the voltage from the main digital board that controls the brightness. If is found OK, be sure that the backlight inverter board is faulty. If not, the main baord. If you wish to get some details, check the site linked here. Pull up older posts. http://electro-medical.blogspot.com/ http://electronicshelponline.blogspot.com/
Older monitors(CRT type) are using complex circuit than LCD, It requires more power consumption than LCD, but you can still save power by 30% through this tip. 1.You must position or install your monitor in a dark area or position. 2.Adjust the brightness control to the level of the black part of the picture must be seen black not gray, or became white. 3. Adjust the contrast control at your most comfortable level. 4.Avoid using bright picture screen saver or blank screen saver. 5.Turn off your monitor manually if necessary.
Since its a LCD take a flashlight and have the room as dark as possible and with the light look to see if a very very faint image of the picture can be seen or not---many of these sets use a "back light" for the brightness and if that's not on.......
he Dell I'm using also has an adaptive brightness, regardless of the fact it does not have a light sensor. It just changes brightness of the screen depending on how much white/black is shown at that moment. Whenever I switch from a very dark to a very bright website I notice and increase/decrease in screen brightness. I'm running Windows 7 by the way.
Hi, Don't put screen in direct sun light or bright light. Bright lights will destroy LCD screen. The LCD screen has some adjustments on back. You might be able to readjust picture brightness.
There are two small holes on the rear side through which you can adjust focus and screen. Use a flash light and locate the two adjustable slots inside the holes. This part carries high voltage. Do not use a metal screwdriver to adjust. Put the TV facing a mirror so you can see how it works. Do not turn more than 1/8th of a turn. The focus control makes picture sharp or fuzzy. Screen control could change brightness. While watching the picture in the mirror, slightly adjust the screen control. Do not turn too much. If it doesn't work, then call a JVC authorized repair center.
If the backlight lights up for a second it's probably fine - It lay odds on the display inverter in the screen. Actually finding parts for anything made by gateway may be difficult, however. They do not sell spare parts. Considering the size of the LCD i bet it would almost exceed the replacement cost of the screen to repair it
Most PS2 games are dark and auto brightness controls will casue your LCD tv to brighten up automatically in response the dark video coming from PS2 games. I suggest you get into the menu settings of your TV and find a setting that will shut off the auto picture controls.
You may have a bad Fly Back transformer. The focus and screen(brightness) controls are located on this transformer. Some of the new RCA's have had problems with this transformer.
If the screen control opens up the picture may either go dark or light which would cause your problem.
Also a bad Picture tube could cause this. It shouldn't since the tv is not very old though.
I've seen a few new ones go bad.