Model guide · TV
TCL 55MQLED80X1
Get sound working on TCL 55MQLED80X1. Start with volume, audio output and your usual source, then follow the next check based on what you hear.
In store? To share a particular step, open the 3D guide and choose Share step there.
Share the model guide · QR code
Scan with the camera on the customer’s phone.
https://fixmytvsound.com/en/guides/tcl-55mqled80x1/Troubleshoot with your model
Model code: 55MQLED80X1. Source market: Sweden. Match the whole code, including its suffix and generation, with the label or model information on your device.
Your model is preselected when you open the 3D guide. Also select the other device’s model if you use a separate audio system.
Start with these checks
Play something and check volume
Play a scene with speech. Cancel mute and raise the volume a little. If you use a TV box, check its volume too. Check whether sound is being sent to connected headphones.
Does sound return? Replay the original programme and keep the audio output that worked.
Compare TV speakers and the audio system
Temporarily select the TV’s own speakers in its sound menu if offered. Listen to the same scene. The menu name and path depend on the model and software.
Do the TV speakers work? Check the audio system’s input and connection. If the TV is also silent, compare sources in the next check.
Compare programmes and sources
Try another programme and a built-in TV app if available. Compare with your TV box or HDMI player. Note which sources produce sound.
Is only one source silent? Check that source’s audio track, volume and output. If all sources are silent, run the model’s built-in sound test if its manual documents one.
Check the connection you are using
For a separate audio system, compare the socket labels with both manuals and select the matching audio-system input. Switch devices off before changing an accessible cable. Let any update finish first.
Does a TV app work while the external player does not? Check the player’s connection and audio format. Change one setting at a time so you can identify what helps.
What is confirmed about this model’s connections?
Exact sockets and audio formats have not yet been confirmed for this model entry. Use the device labels and the manual for the full model code. A similar model may have different connections.
Restart or reset?
A normal restart and a factory reset are different actions. Follow the model’s restart instructions and replay the same source. Wait for any software update to finish before disconnecting power.
The guide’s separate reset procedure may erase personal settings. Check the exact model and source market, record your settings and read what will be erased before confirming. A sound test or normal restart does not require a factory reset.
If the problem remains
Note the full model code, purchase country, selected source and input, cable type and which checks produced sound. Include any error message or indicator pattern. Manufacturer support can then continue from your results.
Black screen · TV will not turn on
Sources for the general checks
The checks above draw on manufacturer troubleshooting guidance. Use only connections and features present on your model; exact menus and reset sequences require that model’s own instructions.
Factory reset · 55MQLED80X1
Check the model code and note your settings before clearing them.
- Open Settings on the remote. Under System, choose About.
- Open Reset, select Factory reset and press OK.
- Select Factory reset again. Choose Erase everything and press OK if you wish to proceed.
- Enter your own code when prompted. Confirm with OK and wait for the welcome screen.
- Finish setup, select your usual audio source and test the same programme again.
Open the manufacturer’s manual · TCL
Source market Sweden · Checked 2026-11-04
TV and speaker problems
Start with what you can hear or see. Each guide helps you compare sources, check a connection and decide what to try next.
All problem guides →