How to fix a TV with no sound (2026)
Quick Answer
A TV with no sound is usually caused by muted or misrouted audio, the wrong output setting, a problem with a connected device, or a fault with the TV’s speakers or audio board. Start with the simple checks first: volume, mute, output settings, cables, and whether the problem happens on all inputs. If sound is missing everywhere after a restart and settings reset, the TV may need professional repair.
Overview
If your TV picture works but there is no sound, the fault is often easier to narrow down than it seems. In many cases the TV is sending audio to the wrong place, such as a soundbar, Bluetooth device, AVR, or headphones, or the issue is coming from one connected source rather than the TV itself. A software glitch can also stop audio until the set is restarted or updated. Less commonly, the built-in speakers, main board, or audio amplifier inside the TV have failed. The safest way to diagnose it is to work from the outside in. First confirm it is not muted and that sound is missing on more than one source. Then disconnect external audio gear, test the TV’s own apps or tuner, and check the audio output menu. If sound returns, the problem is usually a cable, handshake issue over HDMI, or an output setting such as eARC, PCM, bitstream, or external speakers. If there is still no sound from any source, even through the TV’s own apps, a restart, software update, or factory reset may help. If none of that works, internal hardware is more likely, and opening the TV is not a sensible first repair for most people because of electric shock risk and fragile panels.
Who this is for
TV owners troubleshooting missing audio on a modern television, with or without a soundbar, streaming box, games console, or set-top box.
What you’ll need
- TV remote control
- remote for any connected soundbar, AV receiver or set-top box
- access to the TV settings menu
- known-good HDMI cable if external devices are connected
- TV user manual or manufacturer support page
Before you start
Check whether the problem affects every source or only one. Test the TV on its built-in apps, live TV tuner if available, and at least one HDMI device. That tells you whether the fault is in the TV itself, an external device, or the audio path between them.
Step-by-step
- 1
Check mute, volume and the selected audio output
Press volume up on the TV remote and confirm mute is off. Open the TV’s sound settings and look for the current audio output. If it is set to external speakers, ARC/eARC, Bluetooth audio, headphones, or an AV receiver, switch it back to the TV speakers and test again. If headphones are plugged in, unplug them fully.
Why: Many no-sound faults are just the TV sending audio somewhere other than its own speakers.
- 2
Work out whether the fault is the TV or one source device
Try several audio sources: a built-in app, live TV or aerial input if you use one, and a connected HDMI device such as a streaming box or console. If only one source has no sound, inspect that device’s own audio settings and cables. If nothing has sound, continue with TV-level checks.
Why: Testing more than one source prevents you from changing TV settings when the real problem is only one box or app.
- 3
Power-cycle the TV and connected equipment
Turn the TV off, then unplug it from mains power. Turn off and unplug any soundbar, AV receiver, streaming box, or console connected to it. Leave them disconnected briefly, then power the TV back on first and test the TV speakers before reconnecting anything else. After that, reconnect external devices one at a time.
Why: This clears temporary software faults and HDMI handshake problems that can stop audio without causing any picture issue.
- 4
Check HDMI, ARC/eARC and cable connections
If you use a soundbar or AVR, make sure it is connected to the correct HDMI port labelled for ARC or eARC if your setup requires that. Reseat both ends of the HDMI cable, then test with another known-good cable if available. If the TV has a setting for HDMI-CEC or ARC/eARC, try turning ARC/eARC off and back on, or temporarily switch audio back to TV speakers to isolate the fault.
Why: Loose cables and HDMI communication problems are a very common reason for lost sound, especially after devices update or restart.
- 5
Review the TV and source audio format settings
In the TV audio menu, look for digital audio output options such as auto, PCM, pass-through, or bitstream. If you have no sound through a soundbar or older receiver, try PCM as a test. On consoles, set-top boxes, and streaming devices, check their audio output settings too and use a broadly compatible format while testing. If the TV has a balance control or accessibility audio options, make sure they are not set incorrectly.
Why: Some devices and sound systems cannot decode every audio format, so changing to a basic compatible format can restore sound.
- 6
Update software and then reset sound settings
Check the TV’s support or software menu for updates and install any available firmware from the manufacturer’s official method. If the TV is already current or updating does not help, reset only the audio settings if that option exists. If not, and you are willing to set the TV up again afterwards, use the full factory reset as a last software step.
Why: Firmware updates can fix audio bugs, while a reset clears corrupted settings that may not be visible in normal menus.
- 7
Decide whether the speakers or internal hardware may have failed
If there is still no sound from the TV’s own apps or menus, with all external gear removed and TV speakers selected, test whether headphones, optical audio, HDMI ARC/eARC audio, or Bluetooth audio work if your TV supports them. If external audio works but the built-in speakers do not, the speakers or speaker wiring may be faulty. If no audio output works at all, the TV’s audio circuitry or main board may have failed.
Why: This final isolation step helps you judge whether the issue is limited to the internal speakers or affects the TV’s whole audio system.
Why this works
TV audio passes through a chain: source, connection, format negotiation, TV settings, and finally the speaker or external audio device. Testing each part in order isolates where the chain is broken and avoids replacing parts or changing settings at random.
Common mistakes to avoid
- Assuming the TV is faulty before testing built-in apps and another input
- Leaving the TV set to Bluetooth headphones, external speakers or ARC after changing your setup
- Changing several settings at once and then not knowing what fixed or caused the problem
- Using a sound format that the soundbar or receiver does not support
- Opening the TV case without the skills, tools or safety knowledge to work on electronics
Troubleshooting
No sound on one HDMI device, but TV apps have sound
Check that device’s audio settings, restart it, reseat or replace the HDMI cable, and try a different HDMI input on the TV.
No sound when using a soundbar or receiver, but TV speakers work
Confirm the correct HDMI ARC/eARC port is in use if required, check the TV output is set to the external system, reseat cables, and try a compatible audio format such as PCM for testing.
No sound from TV speakers after using Bluetooth headphones or a speaker
Disconnect the Bluetooth device and switch audio output back to TV speakers in the sound menu.
Picture is fine but there is no sound anywhere, including menus and apps
Power-cycle the TV, update firmware, reset sound settings or factory reset, then test again with all external equipment disconnected. If still silent, internal repair is likely needed.
Sound cuts in and out rather than staying off
Check for loose HDMI connections, replace suspect cables, reduce reliance on format pass-through while testing, and update TV and source device software.
Very low sound from only one side
Check balance settings, mono or accessibility audio settings, and then test headphones or external speakers. If one channel is still weak only on the TV speakers, a speaker fault is possible.
Compare your options
Basic user checks and settings changes
Best for: Most no-sound problems
Pros: Fast, free, low risk, often solves the issue
Cons: Will not fix failed speakers or internal boards
Factory reset
Best for: Suspected software or configuration problems after simpler checks fail
Pros: Can clear hidden settings issues and firmware glitches
Cons: Removes saved settings and sign-ins; takes time to set up again
Professional diagnosis and repair
Best for: Likely hardware faults or repeated audio failures
Pros: Proper testing of speakers, boards and power circuits
Cons: Costs more and may not be economical on some TVs
| Option | Best for | Pros | Cons |
|---|---|---|---|
| Basic user checks and settings changes | Most no-sound problems | Fast, free, low risk, often solves the issue | Will not fix failed speakers or internal boards |
| Factory reset | Suspected software or configuration problems after simpler checks fail | Can clear hidden settings issues and firmware glitches | Removes saved settings and sign-ins; takes time to set up again |
| Professional diagnosis and repair | Likely hardware faults or repeated audio failures | Proper testing of speakers, boards and power circuits | Costs more and may not be economical on some TVs |
Alternatives
- Use a soundbar, AV receiver, or powered speakers if the TV picture is still good but the internal speakers have failed
- Connect a streaming box or console directly to an AV receiver, then pass video to the TV, if the TV’s audio return path is unreliable
Pro tips
- Take a photo of current audio settings before changing them so you can undo changes easily.
- Reconnect external devices one at a time after the TV speakers work again to identify which device reintroduces the fault.
- If you use ARC or eARC, make sure HDMI-CEC is configured as the manufacturer expects, because some brands link those functions.
- Test with the TV’s own menu sounds or built-in apps, not just one streaming app, because app-specific faults do happen.
Safety notes
- Unplug the TV and connected equipment before reseating cables or moving the set.
- Do not remove the TV back cover unless you are trained to work on electronics; dangerous voltages can remain inside.
- Handle large flat-panel TVs carefully to avoid panel cracks when reaching rear ports.
What this guide does not cover: This guide covers user-level troubleshooting and basic fault isolation only. It does not include board-level electronic repair, brand-specific service menu procedures, or disassembly instructions.
Cost considerations
Most no-sound issues can be fixed without buying parts. If the problem is a failed speaker, main board, or audio board, compare repair cost with the age and value of the TV before authorising work. An external soundbar can sometimes be a more practical fix than internal repair.
Frequently asked questions
Why does my TV have picture but no sound?+
Usually because audio is muted, routed to the wrong output, blocked by an HDMI or ARC/eARC issue, set to an incompatible format, or affected by a software glitch. Hardware failure is possible but less common than settings or connection problems.
Can a bad HDMI cable cause no sound but still show a picture?+
Yes. HDMI faults can affect audio even when video still appears normal. Reseating the cable and trying another known-good cable is a sensible test.
Should I factory reset my TV straight away?+
No. First test mute, output settings, different sources, and a power-cycle. Reset only after those checks, because a reset takes longer and wipes your preferences.
If my soundbar works but the TV speakers do not, what does that mean?+
It often means the TV’s internal speakers, speaker wiring, or speaker amplifier stage has a fault, while the rest of the TV is still processing audio.
Is it worth repairing a TV with no sound?+
It depends on the TV’s age, size, overall condition, and the diagnosed part. Minor external fixes are usually worth doing; internal board or speaker repairs may or may not be economical compared with using external speakers or replacing the TV.
Sources & references
Guidance on this page is traced to documented sources. Last checked 25 September 2026.
- Samsung Support · manufacturer
Manufacturer troubleshooting guidance commonly includes checking mute, volume, speaker output settings, external device connections, software resets, and audio output configuration.
- LG Support · manufacturer
Manufacturer support materials back the use of sound output checks, cable reseating, external audio device testing, and software updates when TV audio fails.
The basic diagnosis stays the same, but exact menu names and audio options vary by TV brand, model and software version.