Few things are more frustrating than settling in for a movie only to find your Hisense TV has no sound. While this audio glitch is a common headache for many owners, the good news is that it’s rarely a sign of a broken television. Most sound issues can be resolved in minutes with the right troubleshooting steps.
In this guide, we will walk you through the most effective ways to diagnose and fix audio problems on Hisense Roku, Android, and VIDAA TVs. Before you call a technician, let's look at why this happens and how you can fix it yourself.
Common Reasons for Hisense TV Sound Failure
Understanding the root cause is the first step toward a solution. Here are the typical culprits behind a silent screen:
- Accidental Muting: The most obvious cause—the mute button was pressed, or the volume is set to zero.
- Incorrect Audio Output: Your TV might be trying to send sound to a disconnected soundbar or Bluetooth headphones instead of the internal speakers.
- Glitchy Software: Outdated firmware or a temporary software bug can disrupt the audio signal.
- Hardware Connectivity: Loose or damaged HDMI cables are frequent offenders when using external devices like gaming consoles or cable boxes.
- Physical Obstructions: Dust buildup or damage to the internal speakers can lead to muffled or non-existent sound.
How to Fix Hisense TV No Sound Issues
Follow these steps in order, starting with the simplest solutions first.
1. Basic Troubleshooting & Audio Optimization
- Check the Basics: Ensure the TV isn't muted and the volume is turned up to at least 20.
- The 30-Second Refresh: Unplug your TV from the wall, wait 30 seconds, and plug it back in. This clears out minor software "hiccups."
- Verify Output Settings: Navigate to your TV's audio menu. If you aren't using a soundbar, ensure the output is set to "Internal Speakers" rather than "External" or "Optical."
Pro Tip for Better Sound: In your TV's "Sound" menu, you can adjust the Bass and Treble. Enabling "Surround Sound" often provides a more immersive experience, while "Audio Delay" settings can help if the voices don't match the actors' lips.
2. Perform a Remote Reset (The Secret Code)
If your TV is unresponsive, you can trigger a system refresh using a specific button sequence on your remote. Ensure the TV is powered on, then press:
- Home Button: 5 times
- Up Arrow: 1 time
- Rewind: 2 times
- Fast Forward: 2 times
The screen should show some activity and then automatically reboot. This process takes about 20 seconds and often fixes stubborn audio bugs.
3. The Deep Power Cycle
If a standard restart doesn't work, a deep power cycle can drain residual electricity and reset the hardware:
- Unplug the Hisense TV from its power source.
- Leave it unplugged for a full 60 seconds.
- Locate the physical Power Button on the TV itself (not the remote) and hold it down for 30 seconds.
- Plug the TV back in and turn it on.
4. Inspect Your HDMI Connections
If you only experience "no sound" while using a specific device (like a PS5 or Roku Stick), the issue is likely the HDMI connection.
- Ensure the cable is firmly seated in both the TV and the source device.
- Try switching the cable to a different HDMI port on the back of the TV.
- Inspect the cable for any visible fraying or kinks. If it looks damaged, replace it with a high-quality HDMI 2.1 cable.
- Clean the ports using a can of compressed air to remove dust that might be interfering with the signal.
5. Update Your System Software
Running outdated software can cause compatibility issues with audio formats. For a more detailed diagnostic, you can also use a sound test tool to verify if your speakers are functioning correctly across different frequencies.
Updating Hisense Roku TV:
Press Home > Settings > System > System Update > Check Now.
Updating Hisense Android TV:
Press Home > Settings > Device Preferences > About > System Update.
6. Reset Audio Settings to Factory Defaults
Sometimes, a single setting deep in the menu is the culprit. You can reset just the audio without wiping your whole TV:
- Press Home and go to Settings.
- Select System, then Advanced System Settings.
- Choose Factory Reset and then select TV/Audio Reset.
- Press the Play/Pause button on your remote three times to confirm.
7. The Last Resort: Full Factory Reset
If nothing else works, a full factory reset will return the TV to its "out-of-the-box" state. Warning: This will delete your apps, login info, and saved settings.
- Roku TV: Settings > System > Advanced system settings > Factory reset > Factory reset everything.
- Android TV: Settings > Device Preferences > Reset > Factory data reset > Erase everything.
- VIDAA OS: Settings > System > Reset > Factory Reset.
When to Contact Hisense Support
If you have tried every reset and update and still hear nothing but silence, you may have a hardware failure, such as a blown speaker or a faulty motherboard. If your TV is still under warranty, do not attempt to open it yourself.
- Support Phone: +1 (888) 935-8880
- Online Help: Hisense Contact Page
- Hours: Mon–Fri: 9 a.m.–9 p.m. EST | Sat–Sun: 9 a.m.–6 p.m. EST
Frequently Asked Questions
Why is there no sound when using HDMI on my Hisense TV?
This is often caused by an outdated HDMI audio driver on your source device or a faulty cable. Try updating the firmware on your external device or switching to a different HDMI port to rule out a hardware defect.
Is there a physical reset button on Hisense TVs?
Most modern Hisense models do not have a dedicated physical "Reset" button. Resets are performed via the software menu or the remote control shortcut codes mentioned earlier in this guide.
Conclusion
A Hisense TV with no sound is usually a software glitch that can be solved with a simple power cycle or a remote reset. By following these troubleshooting steps, you can save yourself the cost of a repair visit. Remember to keep your TV's firmware updated and ensure your cables are clean and securely connected to prevent future audio dropouts.