Hisense TV No Sound Or Muffled Sound? [Here’s The FIX!]

You wanted to enjoy your favorite evening TV show, only to discover that your Hisense TV has no sound. You are not alone in this.

Many users have complained that their Hisense TV has no sound. A muffled sound on Hisense TV is also not so uncommon. It doesn’t always happen, but when it does, what do you do?

In this guide, you will learn how to fix it. Although it may have many causes, we will show you the solutions. Sound interesting? Continue reading!

How To Fix Hisense TV No Sound 

You may be experiencing a muffled sound on Hisense TV, or worse – there is no sound.

What could be the cause, and what do you do? We’ll show you various troubleshooting procedures.

Fix 1: Check Your Sound Settings 

As obvious as this may sound, many people overlook it. If your Hisense TV has no sound, be sure you did not mute it, and the sound volume is up. You can do this with the remote or using the buttons on the TV itself. 

Fix 2: Check the Attached TV/Cable Box

If you connected your Hisense TV to an external device like a game console, Apple TV, or Roku Stick, check the cable box to be sure it was not muted.

You can also visit the sound settings on your TV to ensure you are using the correct connection option, whether HDMI or PCM.

Fix 3: Power Cycle Your Hisense TV 

Once you have confirmed that your TV is not muted, you can go ahead to power cycle it. A power cycle is one of the first things to do when resolving any TV issue, including the Hisense TV muffled sound.

Here’s how to do it:

• Unplug the TV from the socket. 
• Leave it unplugged for 60 seconds.
• While you wait, press and hold the power button on the TV for 30 seconds. 
• Once the time has elapsed, plug your TV back in and switch it on.

Check if the sound is back. If it’s not, try the other procedures below.

Fix 4: Change Digital Output to PCM

The digital output can also cause a Hisense TV muffled sound. It can even be as bad as no sound on Hisense TV.

Here’s how to change the digital output to PCM to restore the sound:

• Go to Settings.
• Select Devices & Preferences.
• Then, select Sound.
• Under the Digital Output option, select To PCM.

This should fix the issue. If it did not, let’s see other methods.

Fix 5: Adjust or Change the HDMI Cable or Optical Cable

HDMI cable may also cause no sound on Hisense TV. It is either the HDMI cable was not properly fixed or it has gone bad. 

You would need to remove the cable and fix it back in–tighter this time. Now, try the sound. You may need to change the cable if there’s still no sound or you are getting a Hisense TV muffled sound.  

However, you can try other methods before getting a new cable so you don’t waste money. When buying a new cable, go for a 4K HDMI ARC cable.

If you use an optical audio cable or a standard RCA A/V cable, remove it and place it back in to be sure it seats well. For the A/V cable, you only need to readjust the red cable as it is the one responsible for the sound.

Fix 6: Switch to Another HDMI Port

Your HDMI port may be faulty without your knowledge. If your Hisense TV has no sound, the problem may be from a wrong HDMI connection or a faulty HDMI port. 

To correct this, locate the HDMI port (usually at the back of the TV), remove the cable, and fix it into another HDMI port. Most Hisense TVs have more than one HDMI port, so you can try other ports.

You also have to ensure that the HDMI cable and port correspond. For example, if you use a HDMI ARC cable, make sure you plug it into the HDMI arc port, and not the regular HDMI port.

Having done all these, test whether your Hisense TV sound is back. If not, there are a few other things you can try.

Fix 7: Reset Sound to Default 

If you alter your TV sound settings a lot, chances are that you tampered with the sound hence the muffled sound on Hisense TV. Do not panic, you can take it back to the default settings.

Here’s how:

• Go to Settings.
• Go to Device.
• Then, Go to Preferences. 
• Select Sound.
• Click on Reset to Default.
• Finally, click Yes in the prompt that asks you to confirm the action.

If the muffled sound on Hisense TV is gone, congratulations! If it still hasn’t worked up to this point, it may be a software issue. Let’s look into that.

Fix 8: Update Your Hisense TV Software

When faced with no sound on Hisense TV, it could be because of outdated software. Below are the steps to update it:

• Press the Home button on your remote.
• Go to Settings.
• Select System.
• Then, click on System Update. 

If you are using a Hisense Android TV:

• Press the Home button on your remote.
• Go to Settings > About > System Update. 

The system automatically downloads and installs any available software update. 

Fix 9: Do a Factory Reset 

Consider a factory reset a last resort. If your Hisense TV still has no sound up to this point, resetting the TV to its original settings will revert changes that caused the Hisense TV to muffle sound. 

Here’s how to do a factory reset:

• Go to Settings. 
• Select Device & Preferences. 
• Then, select Factory Data Reset.

It is important to note that the prompts may vary depending on the TV model.

Fix 10: Get Professional Help

By now, the muffled sound on Hisense TV or “no sound on Hisense TV” issue should be a thing of the past.

However, if your Hisense TV still has no sound up till now, you can contact Hisense Support for more professional repairs. 

Conclusion 

You have seen that the “no sound on Hisense TV” issue is not much of a big deal. In many cases, it is a slight issue caused by something you would have overlooked.

We have also shown you how to fix the muffled sound on Hisense TV. Peradventure, you had no sound at all, the same solutions apply. One of the procedures must have worked. Share your experience with us in the comment section below. 

How To Fix Hisense TV No Sound Or Muffled Sound

Further Reading

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• Hisense Roku TV Black Screen [Here’s The FIX!]
• Hisense Roku TV Blinking Red Light [SEE THE QUICK FIX!]
• Hisense TV Won’t Turn On [The Issue & Fix In 1 Minute]