No sound on TV: narrow down the cause
Check mute, volume, selected audio output and another source first. Output settings, ARC/eARC connections and format compatibility can cause silence, but these checks do not guarantee a repair or a completion time. Use the exact model's sound test, if available, to help identify the next check.
Step one: basic checks
- Check mute and volume on the selected output.
- Try the TV's physical controls if the remote is unresponsive; a missing volume bar alone does not diagnose the remote.
- Try another channel or app to see whether the problem follows the source.
- Check whether sound is routed to Bluetooth or another external device, then select TV Speaker as a comparison.
Samsung menu names vary by model and year. If TV Speaker restores sound, investigate the external-output path; it does not prove every TV audio circuit is fault-free.
Use a built-in sound test if available
Look up Self Diagnosis or Sound Test in the exact model's manual. A test tone shows that the internal-speaker path works for that test; it does not rule out intermittent or external-output faults. No tone may reflect configuration, software or hardware. Record the result and seek diagnosis if checks do not resolve it. HDMI, broadcast and Bluetooth diagnostic tools are model-dependent.
Sound Bar connection checks
For TV return audio, use the TV and soundbar ports labelled ARC/eARC. Ordinary HDMI source inputs have a different role. Confirm HDMI-CEC where required, the supported eARC setting, TV audio output and the Sound Bar's selected input in each exact manual. Samsung names such as Anynet+, HDMI-eARC Mode, D.IN and TV ARC are examples; menus, defaults and displays vary.
Try a supported Auto output setting where appropriate. Source-player bitstream and TV output are different settings; there is no universal menu label across every Samsung model.
Transport and codec support are separate
| Connection | Transport scope | Check separately |
|---|---|---|
| Optical | Stereo PCM or compatible compressed surround; no Atmos transport | Both devices' supported formats |
| HDMI ARC | Dolby Digital Plus Atmos can work on compatible paths | App, TV and Sound Bar support; not every ARC path |
| HDMI eARC | Can transport TrueHD Atmos and multichannel LPCM | Decoder/passthrough support and source output; eARC does not guarantee every codec |
DTS restrictions belong to the particular TV or audio device, not to eARC as a transport. Choose a cable meeting the devices' documented requirements. Higher price alone does not establish compatibility.
DTS tracks: verify the actual route
Samsung's UK HW-Q990H/XU page and Australian HW-Q990H/XY sheet list DTS:X. Other supply regions need their complete SKU checked; omission from a feature list does not mean absence. Playback still depends on the source, decoding and connection path.
Source → Sound Bar → TV may bypass a TV codec limitation only when the Sound Bar accepts and decodes that track and passes the required picture, refresh and VRR. Confirm full SKUs before recommending this route. Related links: HW-Q990H; JBL Bar 800MK2; WhatsApp us.
Compare source-device output
A console, streaming box, disc player or computer may output a format the downstream route cannot decode. Try a supported PCM setting and compare another known-compatible source. Sound returning narrows the issue toward output or format compatibility; it does not prove that every circuit or cable is normal.
For bitstream decoding, confirm that the receiving Sound Bar supports the track and the source output setting. A computer also needs the correct audio device selected. Keep a record of which source, format and port works.
Only some broadcast channels are affected
Check the selected audio track and reception strength. If channels or frequencies have changed, rescan according to the model's manual. Rescanning is a possible check, not the usual proven cause of silence. If reception remains poor, ask building management about the communal aerial system.
Restart, update and reset carefully
Restart
Follow each device's safe shutdown instructions and allow any OLED maintenance to finish before routine mains disconnection. Restarting may resolve transient software or handshake issues; do not handle wet, damaged or inaccessible plugs.
Firmware
Use the exact model's supported update method. An update may address a documented issue, but cannot guarantee a repair or every codec's support.
Factory reset is a last software check
A reset may erase settings, network details and app logins. Record them and read the model's reset instructions first. A sound-test result does not rule out all hardware faults; consult support if the cause remains unclear. Resetting cannot repair damaged hardware.
Avoid three common assumptions
- Unused HDMI devices can affect CEC control. Compare devices one at a time only using safe accessible connections.
- TV return audio needs the designated ARC/eARC path; a direct source input serves a different purpose.
- Cable price and a version label alone do not establish compatibility. Match the documented cable category and format requirements.
Repair or add an external audio system?
First establish a working compatible external output and obtain a diagnosis and repair quote. A Sound Bar cannot fix every TV, source or output fault, and is not automatically cheaper or better for every room. Confirm current product information before buying. Options to compare: soundbar; JBL Cinema SB120; JBL Bar 500 MK2; JBL Bar 800MK2; Samsung HW-Q990H; speaker range; headphone range.
The TV's three-year store inspection and repair-labour arrangement is separate from the one-month Sound Bar repair cover.
Still no sound: how our warranty actually works
A silent built-in test warrants further diagnosis; it does not by itself prove a hardware failure. Send the exact model, output settings and test result.
Elechid provides the applicable store warranty for its international-version TVs. Contact the store with the full model and fault details for that service.
The TV policy provides three years of store inspection and repair labour. Replacement parts are quoted separately and work proceeds after confirmation; service arrangements follow the full policy.
In practice that means:
- Inspection and diagnosis: under the three-year TV policy and its service arrangements.
- Repair labour — covered for 3 years
- Replacement parts — quoted first, carried out only after you approve
Full TV service arrangements are in our TV warranty policy and FAQ. Confirm the service area and delivery-to-store procedure before arranging repair; confirm any island arrangements under the full policy.
Send the model, symptoms and checks to WhatsApp us; Kwun Tong store. The Kwun Tong premises hold stock for collection only.
Quick reference
| Symptom | First comparison |
|---|---|
| No sound | Mute, output selection and another source |
| Silent built-in test | Record settings and result; seek diagnosis |
| Silent Sound Bar | ARC/eARC port, supported settings and selected input |
| Sound but no Atmos | Source format and each device's codec/transport support |
| Disc or file silent | Track format and exact-SKU decode/passthrough |
| Some channels affected | Audio track, reception and rescan where needed |
These checks narrow the cause; they do not promise a repair time or success rate.
If you would rather not work through it yourself, or you want to get the audio setup right before you buy, WhatsApp us. To browse sets and pairings, start with our Samsung TVs, OLED TVs and soundbar range.
