How To Repair Monitor Backlight
How to Diagnose & Repair Desktop LCD Backlight Bug
By Ty Arthur
i Samsung
The liquid crystal brandish (LCD) monitor that connects to your desktop computer is powered past an inverter board and a cold cathode backlight bulb that shines a light through a canvas of plastic to display images on the screen. If your LCD monitor is no longer displaying images the trouble is most probable caused past the backlight bulb burning out. You can repair the monitor by manually removing its instance and replacing the burned-out bulb.
Power on your figurer and wait until there should be an image displaying on your LCD monitor. Expect straight into the monitor from a distance of most 1 inch way. Cup your hands around your confront to block out the calorie-free in the room and become a clearer view of the LCD screen. Check to see if there is a faint light visible in the screen, which will point that the cold cathode backlight has gone out, or no paradigm at all, which will indicate a different problem.
Bank check the manual that came with your desktop LCD monitor or navigate to the manufacturer's website and find the model of cold cathode seedling that the monitor uses every bit a backlight. Purchase a corresponding replacement seedling.
Ability off your computer and and so remove the monitor cable from the port on the back of the computer case. Disconnect the monitor stand up from the monitor either by pulling out the plastic latches or past removing the screws belongings it to the monitor's casing.
Lay the monitor face up down onto a stable work surface such every bit a desk-bound or tabular array. Take out the screws along the edges of the monitor's casing and set them aside. Lift the back side of the monitor case off of the monitor and set information technology aside. Check to see if your model of LCD monitor has the backlight directly exposed on the lower end of the monitor or if it is hidden behind some other plastic or metallic piece.
Remove the screws holding the plastic or metallic piece over the seedling if in that location is ane present and set up the piece aside. Check to see if your model of monitor keeps the bulb in a plastic casing or if it is soldered directly to the metal. Apply a soldering tool to remove the solder or instead use a rotary cutting tool to cut into the clear plastic casing around the bulb if it is inside a case.
Slide the new bulb into the open spot on the monitor and either solder it in place or employ a piece of tape to encompass over the opening you made on the plastic casing with the rotary cutting tool. Place the metal or plastic encompass back on if there was 1 and reattach the screws. Set the casing back onto the monitor and place the screws dorsum in.
Put the stand back on the monitor and then reconnect it to your desktop computer. Power the computer on and wait for an image to appear on the screen to make sure the backlight bulb was installed correctly.
References
Tips
- The components inside a monitor are highly susceptible to electrical impairment. Always release the built-upwardly static electricity in your body earlier opening a monitor's case by touching a metal object grounded to the flooring.
Warnings
- Opening upward the LCD monitor will void the warranty provided by the monitor'due south manufacturer. If your monitor is notwithstanding nether warranty you may be able to get the backlight result resolved for free by contacting the manufacturer.
Author Bio
Ty Arthur has been writing technical and entertainment-related manufactures for a variety of online sources since 2008. His articles have appeared on Metalunderground.com and many other websites. Arthur attended the Great Falls Higher of Engineering and studied both informatics and creative writing.
Source: https://itstillworks.com/diagnose-desktop-lcd-backlight-problems-5038642.html
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