Sound Not Working On Hisense Roku TV? – (Quick Fix!)

It is saddening when the sound not working on Hisense Roku TV, so let’s fix it.

The Hisense Roku TVs have a lot of audio settings, so you can tweak them to your tastes, but you could also end up without audio.

It is necessary to be careful when adjusting that.

If the sound is not working on your Hisense Roku TV, the first thing you need to do is check all of the audio and video settings, as well as anything related to connected devices.

Moreover, the network could be at fault, you might need to check for updates or factory reset the device. Eager to find the correct solution?

Then keep reading!

Sound Not Working On Hisense Roku TV – 8 Working Solutions

Solution #1: Check The Sound Settings

Is your Hisense Roku TV no sound at all? The first thing we need to check is the various audio settings within the Roku system.

There are plenty of configurations you can tweak to bring the audio back.

Check The Output

For Onn Roku TVs connected to a Roku soundbar or A/V receiver using an optical (TOSLink) cable, follow these steps:

1. Press the Home button.
2. Navigate to the Settings menu, then select Audio.
3. Change the audio output from HDMI and S/PDIF to Dolby Digital (Dolby D).

Perhaps you are using HDMI, which requires you to set the audio format to PCM:

1. Turn on your Roku TV and use the remote to press the Home button.
2. Go to Settings and select Audio.
3. Adjust the Audio mode to Stereo.
4. Set the HDMI audio output to PCM-Stereo.

Disable Volume Mode

Moreover, the Roku system presents “Volume Mode,” which should help improve the audio.

It might have backfired, so check this:

1. Press the “*” button on the remote;
2. Go to the Sound Settings;
3. Locate the “Volume mode” option;
4. Toggle it off.

Check The Equalizer

Perhaps you have recently changed the settings in the TV’s audio equalizer. That can also lead to disastrous outcomes.

So do the following:

1. Open the TV’s settings;
2. Go to the sound/audio settings;
3. Locate the Equalizer;
4. Choose “Reset to default” or anything similar.

Solution #2: Verify The External Cables

Is the Hisense Roku TV sound not working? Another likely situation is having an external device connected to your TV to transmit better-quality audio.

Speakers and soundbars are very popular right now, but they could also cause the sound to fail if something is wrong. 

Adjust The Correct Output

Before anything else, you need to ensure your TV is sending the audio to the correct device:

1. Open the TV’s settings;
2. Locate its audio settings;
3. Find the output configurations;
4. If you use an HDMI device, select HDMI as the output (and so on for other types).

Troubleshoot Further

It is also legitimate to think that the trouble has to do with the cable, port, or external device being used. However, you want to make it work, right?

So check these guidelines:

✅ Verify the cable being used and ensure that it can attach firmly on both ends. Inspect for signs of rust at the ends or damage on its length.

✅ It is a good idea to briefly detach the cable on both ends and clean all dust and debris you can find on the ports and near them. Also, clean the cable if necessary.

✅ It might be necessary to try a different cable of the same sort so you can test whether the cable or port is at fault. Perhaps your external device is also not working properly.

✅ If possible, test your external device with another audio input (another TV, computer, or anything compatible).

Solution #3: Check Your Video Settings

It is not uncommon for audio issues to result from wrong video settings.

At the pace your TV can’t fully decode the data of a transmission, audio might be lost in the process. So let’s check which audio settings you can tweak.

Display Type

Suppose you are using a different device connected to your Hisense Roku TV.

In that case, it is necessary to adjust the display type so the video information matches the resolution.

Here is how to do it:

1. Press the remote’s Home button;
2. Go to the Settings;
3. Click on “Display type”;
4. Select the fitting display type or click on “auto-detect.”

Refresh Rate

Another setting that could cause audio issues, such as distortion or complete lack of it, is the refresh rate.

So do this:

1. Press the remote’s Home button;
2. Go to “Settings”;
3. Select “System”;
4. Select “Advanced system settings”;
5. Go to “Advanced display settings”;
6. Find “Auto-adjust display refresh rate” and adjust it.

If the auto-adjust is active, then disable it. Otherwise, you might want to tinker with it and see how the TV system reacts.

Solution #4: Power Cycle The TV

If you have just turned the TV on and it has no audio, the issue might be very easy to fix.

Power cycling should take care of it, and the TV’s audio will return in a few minutes.

Here it goes:

1. Unplug the TV from power while it is on;
2. Wait a few minutes;
3. Plug it back into power;
4. Turn the TV on.

Restart The Roku

Other times, the system’s audio might fail while you are watching or playing.

In that case, restarting the system is a better idea:

1. Press the “Home” button on the remote;
2. Select “System”;
3. Go to “System Restart”;
4. Choose “Restart” and confirm.

Solution #5: Check The Network

Perhaps you have noticed that the issue only happens when you are streaming shows. In that case, we could assume that the issue is related to the network.

This is the first thing you will do:

1. Turn the TV off;
2. Restart your router;
3. Wait a minute;
4. Turn the TV on;
5. Check the sound on streaming apps.

Network Troubleshooting Tips

If the above hasn’t worked, there are a few more troubleshooting methods you can try:

• Go to the network settings and delete the Wi-Fi details, restart the TV and router, and add the Wi-Fi again.
• Ensure that you are connected to the 5GHz Wi-Fi.
• Ensure no other devices in the room are causing data interference.
• Use an Ethernet cable if possible.

Solution #6: Clear The System Cache

When trying to access certain apps and services, the lack of audio can also result from a high amount of data cache stored in the TV’s system.

That data is usually essential, but it can accumulate or get corrupted, causing complications. 

So do the following:

1. Press the Home button on the TV remote;
2. Hover the cursor over the “Home” option on the screen;
3. Press the “Home” button again, but five times consecutively;
4. Press the “Up” button;
5. Press “Rewind” twice;
6. Press “Fast forward” twice.

Once the data cache is cleared, restart the TV and see if the sound has returned.

Solution #7: Update The Roku System

The sound failure on multiple apps can also be caused by your Roku TV’s lack of firmware update.

Perhaps the current firmware cannot process the audio data of apps because they need compatible updated files. 

So do this:

1. Locate the TV’s Settings;
2. Select the “System” menu;
3. Head to “System Update”;
4. Choose “Check Now”;

If the update is available, you just need to confirm that you want to download it. If it is not, move to the next solution.

Solution #8: Factory Reset The TV

If all the seven solutions above cannot fix your Roku TV’s audio, the issue might lie deep in the TV’s firmware.

In that case, the best solution is to factory reset the TV.

That will wipe all of the written data and should also eliminate the cause of the sound problem.

1. Locate the TV’s settings;
2. Enter “Device preferences”;
3. Choose “Reset”;
4. Confirm on “Factory data reset”;
5. Choose “Erase everything.”

After that, the TV should restart and prompt you to start from scratch. 

Quick Recap

You must scour the TV’s settings when the sound not working on Hisense Roku TV.

The issue could also lie in the connected hardware or your router not transmitting enough data.

However, you should be able to get the audio back in no time.