Q&A for How to Repair LCD Monitors

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Question

My monitor has horizontal blue lines across it and they won't go away. It all started when I downloaded new drivers from nvidia. What can I do?

Community Answer

Try plugging it into another computer and see if it still has those lines. If it does, then it's your monitor's problem. If there is no issue with another computer, try reinstalling the drivers from nvidia.

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Question

My monitor display goes on and off when I start it. What should I do?

Somone

Community Answer

That sound like flickering. Follow the instructions above.

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Question

What do I do if my monitor says "power saving mode"?

Somone

Community Answer

That is an automatic thing. If the computer is inactive for awhile, the monitor will go to a "standby" state. However, the computer tower itself will not unless the settings are configured to do so.

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Question

My monitor isn't working. I checked power cables already. What's wrong?

Community Answer

There are many reasons this might be happening. Your monitor could be broken, the cables could be broken or the power source might not be active. You can do a Google search for something like "troubleshoot monitor not turning on" and you'll get instructions on how to troubleshoot it.

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Question

What if the top half of the display is fine, but the bottom half is black?

Community Answer

It could be that you have not selected the correct or recommended resolution for your display. Just right click on your desktop and select "display settings" or "screen resolution," and try to manage it from there.

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Question

There is a vertical red line formed, it gradually widens day by day, and now it is a few millimeters wide. How can it be removed?

Somone

Community Answer

Go to "5 ways to fix a stuck pixel". That should help.

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Question

What would cause my LCD monitor to fail and have a constant clicking sound?

Community Answer

Some monitor power boards have small relays (electromagnetic switches) that will click on and off. If there is a power problem or even a software one, a constant switching might happen. That is all that can be guessed without a model number or brand name.

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Question

My LCD monitor has a white screen, even without connected HDMI or VGA cable. What's wrong with it?

Somone

Community Answer

The monitor is broken. Follow the instructions above.

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Question

What do I do if my monitor works well for a few minutes and then powers off?

Community Answer

There may be a broken cable, or the monitor itself is shot. You may need a new one.

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Question

How do I repair my LCD monitor if it displays "no input detected" when it is connected?

Community Answer

I know from experience that the monitor cable connection to the PC can look like it is seated when it isn't. If that is not the problem, it could be that the video card in the PC went bad. Not all PCs have a separate video card, so the motherboard could have gone bad. The history of the PC has a lot to do with your problem, it's possible that someone could have set the BIOS to turn off a video system built into the M/B when a separate video card is to be used.

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Question

How much would a replacement capacitor for an LCD monitor cost?

Jesse Krämer

Community Answer

It really depends on which type of capacitors. They're not priced equally. Most of the time you can replace all of them for under $10, though.

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Question

What do I do if my LCD monitor is flickering?

Community Answer

Flickering or a blinking backlight may be a sign that the backlight is about to go out. You may want to replace it using the instructions above.

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Question

My iPhone fell down, and now one side of the screen is completely black and the other has colored lines on it. The phone is still working and the screen still senses my fingers. How do I repair this?

Community Answer

If it senses your fingers on even the black part of the screen, then this means only the visual panel is broken and needs to be replaced. If it does not sense your fingers in the black area, then that means the touch part of your screen is also broken, both will need professional repairs.

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