Why Is Philips TV Making High Pitched Noise? – Fix Guide

Asking why is the Philips TV making high pitched noise? You’re not alone!

Many Philips users shared that their TV is making high-pitched and irregular noises and that they have found the problem from within the TV’s hardware.

However, the issue could also be caused by third-party sound devices and in this post, you’ll learn how to find out!

Your Philips could be making high-pitched noises due to a fault with the power supply somewhere along the way or issues with third-party devices. The problem could also be caused by the current channel/source or even by connected inputs.

Why Does Philips TV Making High Pitched Noise And Won’t Turn On?

First, it is recommended to determine whether your Philips TV can be turned on or not.

If your TV is working, but there is high-pitched background noise, you will be able to apply a variety of troubleshooting methods that require interacting with the software of the device.

In case you cannot turn ON your TV and there is high-pitched noise, check the following:

1. Power Adapter Problem

Whenever a power adapter tends to be faulty, it would make a strange high-pitched noise. Be extremely cautious when interacting.

2. Power Source Malfunction

Same as with the power adapter, the wall outlet could develop issues, emitting a high-pitched sound.

3. Channel/Broadcast Sound

In case you’re watching a channel, that broadcast is transmitting weird noises, you will be hearing them out of your TV.

4. Hardware Fault

The coils and the tension plates of your Philips TV might have developed a fault and from there you will be hearing the high-pitched noise.

Those were the possibilities, whenever your TV is emitting a high-pitched noise and won’t turn ON.

In case you’re having just the noise and your TV can be turned ON and interact with, proceed with the solutions below.

How To Fix Philips TV Making A Pop High Pitched Noise?

Most of the solutions below include an active intervention with the TV menus and software.

In case you can’t turn the TV ON, jump and apply Solution #1 and Solution #3.

Here’s how to fix the high-pitched noise on your Philips TV in easy-to-apply solutions:

Solution #1 Power Cycle Your Philips TV

As a first-resort solution, you may try power cycling your Philips TV.

This would practically discharge all of the electricity from your TV device and can be done by unplugging the power adapter for a given amount of time.

Here’s how to power cycle your Philips TV easily:

1. Turn OFF the Philips TV if it is turned on.
2. Unplug the power adapter of your Philips TV.
3. Standby for 5 minutes while the power adapter of your Philips TV is unplugged.
4. Re-connect the TV to the power and test.

Notice: Avoid using any strips or dividers since the high-pitched noise could be formed due to a malfunction in one of those.

Solution #2 Change Broadcast/Source

The high-pitched noise coming out of your Philips TV might have something to do with the current broadcast or source on your device.

Keep in mind that this solution will only help users whose Philips TV can be turned ON.

Having that said, we suggest changing the broadcast or source you are watching on your Philips TV.

This might resolve the high-pitched noise you’re hearing since the fault might not certainly be with your Philips TV.

The best way to execute this solution would be to disconnect ALL third-party devices such as consoles, speakers, and headphones. Go to Watch TV and test if the noise is still there.

Note: You might also try putting your Philips TV on the home screen to determine if the high-pitched noise is going to disappear.

Solution #3 Reconnect/Replace Philips TV Power Adapter

If changing the broadcast didn’t solve the issue, the next move would be to replace the power adapter.

Lean in closer to where the power adapter connects and try to identify if the noise is coming from there.

To reconnect/replace the power adapter, check the instructions below:

1. First, turn OFF your Philips TV.
2. Disconnect the power adapter from the wall outlet first!
3. Disconnect the power adapter from the TV secondly.
4. Use a new, proven-to-work power adapter (if possible).
5. Test if the high-pitched noise is still there.

In case the problem does not appear with the new adapter, you would know that the old cable is faulty.

In case the issue is still there with a new adapter, maybe the noise is coming from the wall outlet that you’re currently using.

Solution #4 Connect To A Different Outlet

The buzzing of your Philips TV might be a power-related problem, coming from the current power source your device is connected to. This is why we suggest connecting your Philips TV to a different power outlet.

Simply disengage the power adapter of your television and search for another proven to work wall outlet.

Again, make sure that you’re using a standalone wall outlet since dividers can develop and make noises on their own.

Once you’ve figured out where to connect your Philips TV, relocate the device and connect it with the power source.

Test if the high-pitched noise would still be there when you’re using a wall outlet that has proven to be reliable.

Tip: Test if the high-pitched noise would occur when connecting other devices to the old, wall outlet.

Solution #5 Factory Reset Your Philips TV

If nothing was successful in fixing the issue so far, the best thing you can undertake is a factory reset on your Philips TV.

The factory reset would only solve software-related problems so before you proceed with the actual reset do the following:

Mute or turn the volume down on your TV to check if the high-pitched noise would disappear.

In case it does, it means that the problem is software-related so let’s perform a factory reset to fix the problem for good.

Here’s how to factory reset your Philips TV easily:

1. Open the settings of your Philips TV.
2. Press the right cursor twice.
3. Then, press the cursor down once and select RESET AV SETTINGS.
4. Choose START NOW and confirm with the OK button.
5. Hit the MENU button and wait.

Note: Make sure that your Philips TV’s power income is not compromised during the reset to avoid further software complications.

Philips TV High Pitched Noise Is Still There…

In case you’ve tried all of our solutions and nothing works, then maybe the high-pitched noise is coming from a faulty hardware component.

Such components could be capacitors and resistors, which are located on the Printed Circuit Board.

In case you can hear the noise coming from within the TV, make sure to check your warranty or contact a technician to take a look.

Thus, to fix a Philips TV that is making high-pitched noise, you should inspect the power adapter, disconnect ALL sound devices, and check the power source. Then you can use a replacement power adapter to connect your TV to another power source to solve the issue.

Read Next: How To Fix Philips TV HDMI Not Working Issue?

Bottom Line:

We’ve learned that whenever your Philips TV making high pitched noise, you need to inspect several units to locate the source.

However, in case the noise is not coming from within the TV, it can be easily solved at home.