It is difficult for a computer owner to deal with a broken screen. It is very likely that sooner or later you will need to have your computer screen repaired. Here are some steps you can follow to fix your computer's LED screen.
Check your warranty
If your warranty is still running, please contact the manufacturer for discounted repair. Attempting to repair it yourself will likely void the warranty.
Check the power light
Turn on the monitor and look at the light at the edge of the screen. If one or more lights come on, go to the next step. If the LED does not light, the power supply is faulty that one of the outputs is leading to the power supply.
Shine the flashlight on the monitor
If you can see the image when you turn on the light on the screen, the monitor backlight is defective.
Fix the stuck pixels
If most of the screen works, but a few pixels are stuck to a single color, the correction is usually instant. Keep the monitor on and try to gently rub the stuck pixels.
Try to repair any cracks in the spider web or blackheads
If you think the glass is broken, don't try to fix it. Replace the monitor instead. Rub the scratches as gently as possible with a clean eraser. Clean the gumline when dirt builds up. Purchase an LCD scratch repair kit. Read this article for more homemade solutions.
Replace the Display
If you are using a standalone LCD monitor it is possible to replace the panels yourself, the process is difficult and can expose you to dangerously high voltages. Follow the guidelines for your specific model to maximize safety and success rate.
Try some other solutions
The main control buttons may be damaged. Clean the with Metal Cleaner or tap to reconnect any loose connections. Check the input cable for damage or try another cable of the same type. Check the cards they are connected to and reseal any broken connections.
Replace the Bad capacitors
Understand the danger
Capacitors can hold a large charge even after disconnecting the power supply. If not handled properly, hire a professional to fix the computer LEDs. It is important to stand on a low-friction surface.
Disconnect the power
If the monitor is connected to another battery-operated device, remove the battery. Follow the online manual for your computer model.
Carefully track the progress
Use small containers for screws and other removable parts. Label each housing with the name of the part held in place by the screws or with the step number in this manual.
Remove the case
Unscrew the plastic case at each corner. Prying apart components with a metal object risk destroying them with chipping or an electrical short.
Locate the power supply box
These capacitors are normally placed on the other side and are not visible until you have finished disconnecting the board. If you're not sure which card provides power, search online to repair a computer LED with the model number.
Disconnect the circuit
Remove all screws and ribbon cables holding the circuit board in place. Always unplug the cord by pulling it straight from the socket.
Find and remove the larger capacitor
Carefully from the edges, without touching the metal pins or connected components. Find the pin connected to the largest capacitor. For best results, test the voltage on the pins with a multi-meter. Use the resistor to repair the computer LED, if the significant voltage remains. Repeat with each larger capacitor. Smaller cylinders generally cannot cause serious damage.
Take photo of faulty capacitors for identification
Before removing, photograph or record the position of each capacitor and the markings on the side. It is very important to know which pin is connected to the negative side of the capacitor and which to the positive.
Deformed desoldering capacitor
Use a soldering iron and desoldering pump to remove the pins connecting the faulty capacitor. Set aside the damaged capacitor.
Purchase the new ones
Every electronics store must sell capacitors at very low prices. Look for a capacitor that has the same size and characteristics the same as the old capacitor or slightly higher.
Solder the new capacitor
Use your soldering iron to connect the new capacitor to the circuit. Make sure to connect the negative side of each capacitor to the same pin that was connected to the negative side of the old capacitor.
Reinstall and test
Reconnect all cables, panels, and test the monitor before attaching the final plastic panel, if all other parts are connected. If it still doesn't work, you may need to hire a professional to repair the computer LED or purchase a replacement.
Replace the Backlight
Unplug the power supply
Unplug the monitor or remove the battery from the laptop.
Open the back of the monitor
Unscrew the plastic box in each corner. Remove all the components connected to the display panel, paying attention to where each one goes.
Find the backlight
Some components may cause a dangerous electric shock. Do not touch any circuits while searching unless you are wearing rubber gloves.
Buy the right parts at an electronics store
Take a picture and show it to the store employee. Also, measure the lamp size or write down the size and model of your monitor.
Insert the new one
Be careful if the backlight is a cold cathode fluorescent lamp because they contain mercury and may require special disposal following local laws.
We recommend you to hire someone professional rather than do at own!
Repairing a computer LED panel is a very complicated procedure and many things can go wrong. If you mishandle the LEDs, you can damage not only the LEDs but also all the connectors that go into the motherboard.
In other words, you may experience a headache that is stronger than before. For this reason, it is generally recommended that you hire a professional to repair your computer's LED if it breaks. This way, you can rest assured that your device will be repaired by a
computer professional
who knows what to do to fix it.
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