Symptoms
- Receiver display is on but no sound from any speaker
- Volume knob moves but nothing happens
- Sound worked before but stopped after a settings change
- Only some channels/speakers have sound
Likely causes
- CommonWrong input source selected on the receiverEach connected device (TV, Blu-ray, game console) needs its matching input selected.
- CommonReceiver muted or volume set to minimumA mute button press or accidental volume-down can silence output entirely.
- PossibleSpeaker configuration not set correctly in the setup menuIncorrect speaker assignment or a skipped auto-calibration can leave outputs unassigned.
- PossibleLoose or incorrect speaker wire connectionsSpeaker wires need to go to the correct positive/negative terminals matching the input.
- Less commonInternal amplifier or protection circuit faultReceivers can enter a protection mode that mutes all output if it detects an internal fault.
What to do
- Confirm the correct input is selected on the receiver matching the device you're trying to hear (e.g., 'HDMI 1' for the TV).
- Check that mute isn't engaged and volume is turned up to an audible level.
- Look at the receiver's front display or app for any error codes or a flashing 'protection' indicator.
- Verify speaker wires are connected to the correct positive and negative terminals on both the receiver and speakers.
- Run the receiver's automatic speaker setup/calibration if available, or manually check the speaker configuration menu.
- Unplug the receiver from power for a full minute, then plug back in and power on before testing again.
- Test with headphones plugged into the receiver if available, to check if the receiver itself is producing sound.
- Try a single speaker connected directly to isolate whether the issue is the receiver or the speaker wiring.
Tools and parts
- Screwdriver (for speaker terminals)
When to call a pro
If the receiver shows a persistent protection or error indicator, it likely has an internal amplifier fault and should be serviced by a professional.
Safety
Use caution
Unplug the receiver from power before touching speaker wire terminals to avoid shock or shorting the amplifier.