How to Fix a Sony TV Screen that Keeps Flickering


Why is my Sony TV screen flickering?

The main reason why your Sony TV screen keeps flickering is because the power supply is faulty, incorrect display settings or the LED backlight panel is damaged.

 

Likely causes:

  • Power supply issue
  • Faulty picture settings
  • Deteriorated backlight panel

 

Power supply issue

If your Sony TV receives an unstable or insufficient power supply through the power cord, it won’t be able to support its regular functions and display what it is supposed to on the screen. This may cause your Sony TV’s screen to flicker.

 

Faulty display settings

If the power supply isn’t an issue, then your TV’s picture settings might be. Faulty picture settings can over burden your TV during the image quality optimization process. This extra load results in your screen flickering instead of functioning properly.

 

Backlight panel deterioration

If neither of these two factors is at play, then it’s likely a much bigger issue. The next likely thing causing your screen to flicker is a deteriorated backlight panel- the hardware that is responsible for creating/ producing the visuals you see. Naturally, if this part doesn’t function properly, your screen will blink or flicker.

 

How do I fix my Sony TV screen that keeps flickering?

If you want to fix your Sony TV screen’s flickering issue, you either need to conduct a power reset, reset your TV’s picture settings, or call Sony’s customer support.

 

Here are the steps for each of these solutions:

 

Power reset your device

  1. Pick up the remote and turn your Sony TV off.
  2. Now, disconnect the power cord from the main socket.
  3. With the power cable disconnected, press and hold down your Sony TV’s power switch for half a minute.
  4. After this step, go take a 15-minute break- let your TV be.
  5. Now, place the power cord tightly in the wall socket and switch on your TV with the remote.

 

Reset the picture settings

  1. Pick up the remote and turn on your TV.
  2. Go to the Display and picture settings.
  3. Find advanced system settings.
  4. Find the reset button.
  5. Click “Confirm Reset” when the prompt appears.

 

Call Sony’s customer support.

If hardware issues cause your TV’s screen to flicker, then you probably have no other choice than to pick up the phone and call Sony’s customer support. Ask them to send one of their expert technicians to your house so that they can take a look at your TV. The expert will tell you whether your TV can be repaired or whether it is time for you to replace your TV.

Whatever happens, do not go around fixing your TV by yourself. If you attempt this, you will risk voiding your TV’s warranty and damaging the equipment inside.

 

What does it mean when my Sony TV is flickering?

When your Sony TV flickers, it means that there is a cable connection issue (typically with the HDMI cable) with your Sony TV.

 

Here’s what you can do:

  1. Start by switching your Sony TV off using the remote.
  2. Now, take out the power cord from the socket.
  3. Start plucking out all cables connected to your TV.
  4. Now, clean these cables and their respective ports and ensure that there is no leftover debris.
  5. The next step is to plug these cables right back into their respective ports- ensure that they’re securely inserted into their port.
  6. Now, plug your TV’s power cable back and use the remote to switch it back on.

 

Sony TV screen keeps flickering
Image Copyright: monticello/Depositphotos.com

 

Why is my Sony TV flickering on/ off repeatedly?

Your Sony TV is switching on/ off in a loop because it is in a restart loop, because some internal hardware is damaged, or because it isn’t receiving sufficient power.

 

Causes:

  • Your Sony TV is in a booting loop
  • Deteriorated internal hardware
  • Insufficient power supply

 

Here’s how to fix these issues

 

Booting loop

Boot-up loops are typically caused by random glitches. All you need to do is turn your TV off and then turn it back on after a while. If this doesn’t work, let your TV rest for a couple of days.

 

Internal hardware problem

If internal hardware is causing your TV’s screen to flicker, call customer support for help instead of attempting to fix your TV by yourself. Otherwise, you will risk causing further damage and voiding your TV’s warranty.

 

Power supply issue

  1. Pick up the remote and turn your Sony TV off.
  2. Now, disconnect the power cord from the main socket.
  3. With the power cable disconnected, press and hold down your Sony TV’s power switch for half a minute.
  4. Keep the TV off for 15 minutes.
  5. Now, place the power cord firmly into the wall socket and switch on your TV with the remote.

 

Why does my Sony TV’s screen keep flickering lines?

Your TV is showing flickering lines on the screen either because of magnetic interference nearby or because the auto-adjustable brightness feature is malfunctioning.

 

Causes

  • Auto-adjustable brightness feature
  • Magnetic interference

 

Magnetic interference

Magnetic interference from nearby magnetic devices, i.e., speakers, can interrupt your TV’s display and cause the screen to flicker. Move away all magnetic devices from your Sony TV to resolve the issue.

 

Auto-adjustable brightness

This feature may sometimes cause your screen to flicker as the ambient lighting changes quickly.

  1. Pick up your remote and turn the TV on.
  2. Find and open pictures and display settings.
  3. The next step is to go to the brightness settings. Go ahead and turn off auto-adjust brightness- this feature causes horizontal lines on your TV sometimes.

 

How do I fix flickering Horizontal lines on a Sony TV?

You can stop horizontal lines from appearing on your Sony by resetting the picture settings on your TV.

 

If the picture settings on your TV are too high, horizontal lines may start appearing on your screen because the settings are putting an unusually high load on your TV. Here’s how to re-adjust the settings to resolve this problem:

 

  1. Pick up your remote and turn the TV on.
  2. Find and open pictures and display settings.
  3. Find the picture mode options- here, you can control how the visual on your screen appears, i.e., choose between cinema mode, sports mode, and more options.
  4. The next step is to go to the brightness settings. Go ahead and turn off auto-adjust brightness- this feature causes horizontal lines on your TV sometimes.

 

Alternatively, reset your TV’s picture settings using these steps:

  1. Go to the Display and picture settings.
  2. Find advanced system settings.
  3. Find the reset button.
  4. Click “Confirm Reset” when the prompt appears.

 

How do I fix Flickering Vertical lines on a Sony TV?

To fix your Sony TV’s vertical lines issue, conduct a cable reset of your TV. This will resolve all input-related flickering issues.

 

Likely causes:

  • Interruption from a third-party device.
  • Cable issue, i.e., Loose HDMI cable.

 

Here’s how to conduct a cable reset to resolve these issues:

  1. Start by switching your Sony TV off using the remote.
  2. Now, take out the power cord from the socket.
  3. Start plucking out all cables connected to your TV.
  4. Now, clean these cables and their respective ports and ensure that there is no leftover debris.
  5. The next step is to plug these cables right back into their respective ports- ensure that they’re securely inserted into their port.
  6. Now, plug your TV’s power cable back and use the remote to switch it back on.

 

Why is my Sony TV screen black and flickering?

Your Sony TV’s screen is black, and flickering is that your TV’s screen panel (or some other crucial internal hardware is damaged.

In such situations, the best option you have is to call Sony’s customer support and get one of their expert technicians to take a look at your device. They will let you know whether your TV can be repaired or not. If it can’t, ask them if you’re still eligible for the warranty.

 

Note that you may void your warranty if you try fixing your TV up on your own by opening it up, so we strongly advise that you don’t do that.

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