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check the contrast and brightness settings. check if its set to minimum... if so just set to the correct contrast and brightness settings... if problem did not solve. and if its under warranty just bring the unit back to the store or in the authorized service center. or call a local repairman because there is no serviceable parts inside. ty
The monitor is possibly not receiving power. Perform the following steps to fix the problem:
Ensure that the electrical outlet and the monitor are both switched on.
Check that the power cord is firmly plugged into the electrical outlet and the power supply unit.
If the power cord has a removable fuse, replace it.
Try another power cord.
Try another electrical outlet.
Check the power connection at the back of the panel.
Screen is blank and power indicator is steady green
Brightness and Contrast may be too low. Adjust the brightness and contrast using the On-screen display controls (OSD) by selecting the button Screen is blank and power indicator is steady amber
The monitor is in the Power Management Standby state. The power management feature is invoked when the computer recognizes that you have not used your mouse or keyboard for a user-definable period. Perform the following steps to bring monitor out of the power management state:
Press any key on the keyboard or move the mouse to restore operation.
Check the Power Management software on your computer.
Press the (OK) key to switch between analog and digital mode. If the panel is the wrong mode for the signal being provided, the monitor appears to go into sleep mode.
Screen is blank and power indicator is flashing green
Display mode of the computer is outside the range of the monitor. The display mode the monitor uses is controlled by your computer. Therefore, you should refer to your computer's documentation for details on how to change display modes.
The image size, position and shape may change when the display mode changes. This is normal and the image can be readjusted using the IMAGE SETUP and the monitor controls.
Note: Unlike CRT monitors, which requires a high refresh rate to minimize flicker, TFT technology is inherently flicker-free. If possible, configure your computer for 1600 x 1200 addressability at 60Hz vertical refresh rate.
Use the following table as a guideline and reconfigure your computer to use a supported display mode. The highest resolution (for example, 1600 x 1200) produces the optimal output, but limitations of your monitor may prohibit this setting. Adjust the addressability mode until an image appears.
CHECK SIGNAL CABLE" message is shown and power indicator is steady amber.
The monitor is not receiving a video signal. Perform the following steps to fix the problem:
Check that the signal cable is firmly connected to your computer
Check that no pins are bent in the signal cable connector.
There are noises in the video signal. The IMAGE SETUP function is used to adjust the level of noise in the video signal which causes horizontal lines or areas where the image appears to be unstable and jitters or shimmers. This can be done automatically or manually. Note: It is not applicable to digital input.
Use the image setup fix the problem:
Select (Image Setup) menu in the OSD.
Select Manual to adjust CLOCK/PHASE settings.
Image appears to be discolored
The color setting may be incorrect. Perform the following steps to adjust the color settings:
Select (Image Properties) from the OSD menu.
Select (Color Properties) to adjust the color mode you find most comfortable or fine tune the colors using the Custom menu.
A few dots are missing, discolored, or inappropriately lighted
A small number missing, discolored, or lighted dots may be present on the screen, which is an intrinsic characteristic of the TFT LCD technology and is not an LCD defect. Using On-Screen display (OSD) controls
The settings adjustable with the user controls are viewed through the OSD. Press the (OK) button to display the main OSD menu.
OSD main menu:
Note: The LCD monitor needs time to become thermally stable the first time you turn it on each day. Thus, to achieve more accurate adjustments for parameters, allow the LCD monitor to warm up (be on) for 15 minutes before making any screen adjustments
Removing burn-in takes time. The best practice is to avoid creating the images.
Whatever the image is coming from has been left on screen for an extended period of time. The TV should be turned off or the source turned off when not watching.
You may find some relief by lowering your contrast (which I am suspecting is still at or near 100% as they come from the store). Bring contrast down to, say 60. Use brightness or backlight to brighten the screen if you think it is too dark with the contrast lowered. (Best picture quality is near 50, the center of the scale.)
If you have sound, then your tv doesn't need tuning. Shine a bright light onto the screen, can you see a very dim picture? If so, your backlight has stopped working. This is almost always due to the inverters failing and can be repaired.
There are two places to look for the problems, the backlight inverter board and the power supply. Look at the power supply first since it is easier to get to, look for burnt parts, bad capacitors, etc. http://en.wikipedia.org/wiki/Capacitor_plague Please post back what you find.
It is most likely the screen backlight. LCD TVs have thin fluorescent lamps and a part called an inverter board which is a transformer similar to a light ballast.
Inverters are typically a $50-100 part and are trivial for any technician to replace. The backlight lamps themselves tend to go pinkish when near the end-of-life, and are a low-cost part, but it requires a lot of work to change the lamps.
IF the LCD display itself is good, then the screen image should remain perfect and undistorted...if the backlight fails altogether, you should be able to see the image by shining a bright flashlight directly on the screen (only as a test, not as a long term solution, obviously :) )