How to Fix Marantz Receiver No Sound From TV
If your Marantz receiver powers on but the TV is silent, the problem is usually in the signal path, not the receiver itself.
This guide walks through the most common causes, from HDMI ARC settings to audio format mismatches, so you can isolate the fault quickly.
Start With the Basics
Before changing advanced settings, confirm that the TV, receiver, and connected sources are all working as expected.
A simple setup mistake can look like a hardware failure.
- Make sure the TV volume is not muted or set too low.
- Verify the Marantz receiver is on the correct input.
- Check that the TV is sending audio to the receiver instead of its internal speakers.
- Confirm the source device is actually playing sound.
If the issue began after a power outage, firmware update, or cable swap, start there.
Those events often reset HDMI control settings or expose a faulty cable.
Check the HDMI Connection First
For most modern systems, HDMI is the main audio path between a TV and a Marantz AV receiver.
A loose cable, damaged port, or wrong HDMI jack is one of the most common reasons for no sound.
Inspect the cable and ports
- Use a high-speed or Ultra High Speed HDMI cable.
- Try a different HDMI cable to rule out a physical fault.
- Inspect the TV’s HDMI ARC or eARC port and the receiver’s ARC-compatible HDMI output.
- Remove any adapters, splitters, or switchers during testing.
Marantz receivers often label the TV connection clearly, but the exact port matters.
ARC and eARC only work through specific HDMI sockets, not any random HDMI input.
Power-cycle both devices
HDMI handshakes can fail even when all hardware is fine.
Turn off the TV and receiver, unplug both for about a minute, reconnect the HDMI cable, and power the TV on first, then the receiver.
Confirm ARC or eARC Is Enabled
If you are using the TV as the source of audio, HDMI ARC or eARC must be enabled on both devices.
Without this feature active, the TV may send picture to the receiver path but no return audio.
- On the TV, enable HDMI ARC, eARC, or CEC depending on the brand.
- On the Marantz receiver, enable HDMI Control and ARC in the setup menu.
- Match the TV’s audio output to external speakers or receiver output.
Different brands name these features differently.
Sony calls it Bravia Sync, Samsung uses Anynet+, LG uses Simplink, and Panasonic uses Viera Link.
These are all forms of HDMI-CEC, which often must be enabled for ARC to function properly.
Verify the Marantz Audio Settings
Marantz receivers include several audio and HDMI settings that can block TV sound if configured incorrectly.
If the receiver is receiving video but not audio, check the setup menu carefully.
Key settings to review
- HDMI Control: typically must be On for ARC operation.
- ARC or eARC: must be enabled if using TV audio return.
- TV Audio input assignment: ensure the TV audio source is mapped correctly.
- Input Mode: set to Auto or HDMI, not a forced analog option.
If you recently changed sources, the receiver may be locked to a different audio input.
Switching to the TV Audio source manually can help reveal whether the problem is routing rather than signal loss.
Check the TV Audio Output Format
Some TVs send audio in formats that older or mismatched receiver settings cannot decode.
A common issue is when the TV is set to output Dolby Digital Plus, PCM, or bitstream in a way the receiver does not handle as expected.
Try these TV audio settings
- Set digital audio output to PCM for testing.
- Then try Auto or Pass Through if PCM works.
- Disable TV speakers if the TV is meant to send audio exclusively to the receiver.
- Update the TV firmware if the audio menu is behaving inconsistently.
PCM is often the simplest diagnostic choice because it removes advanced compression and compatibility variables.
If PCM restores sound, the issue is usually a format negotiation problem rather than a failed receiver.
Test With a Different Source
To determine whether the problem is only with TV audio or with the receiver in general, test another source such as a Blu-ray player, streaming box, game console, or cable box.
- If other sources play sound, the receiver is likely fine.
- If no sources play sound, the problem may be receiver-wide or output-related.
- If only one app on the TV is silent, the issue may be app-specific audio settings.
This test helps separate HDMI input problems from ARC problems.
For example, the receiver may work perfectly with a PlayStation, but still fail to receive audio from the TV through ARC.
Look for Mute, Zone, or Speaker Assignment Problems
Marantz receivers can route sound in ways that make audio seem absent even though the signal is present.
Incorrect zone settings, speaker assignments, or output modes may mute the main room.
- Make sure Zone 2 or another zone is not active by mistake.
- Confirm the main speaker output is selected, not headphone or line-out routing.
- Check whether the receiver is configured for external amplification that is not connected.
- Verify the speaker terminals or binding posts are connected properly.
On some models, the front display may indicate an active input but a muted output zone.
Watching the display while changing volume and inputs can reveal this quickly.
Update Firmware on Both Devices
Firmware bugs can affect HDMI handshake, ARC communication, and compatibility with newer TVs.
If your Marantz receiver is several updates behind, installing the latest firmware may resolve the issue.
- Check the Marantz support page for your exact model.
- Run the receiver’s built-in firmware update if available.
- Update the TV software through its system menu.
After updating, repeat the HDMI power cycle and retest ARC or eARC.
Firmware updates often require the devices to renegotiate the connection.
Try Resetting HDMI-CEC Settings
HDMI-CEC can be helpful, but it can also create conflicts when multiple devices control one another.
If audio stopped after connecting a new console, soundbar, or streamer, CEC may be the cause.
What to do
- Turn CEC off on the TV and receiver.
- Unplug all HDMI devices except the TV and Marantz receiver.
- Reconnect the system one device at a time.
- Re-enable CEC only after basic audio works again.
This approach helps eliminate remote-control conflicts and false device detection, both of which can interfere with audio return.
When the Problem May Be Hardware
If you have confirmed the cables, settings, updates, and source devices, the issue may involve a failed HDMI board, ARC port damage, or an internal audio board problem.
Physical wear, lightning surge damage, and heat exposure can all cause hardware faults.
Signs that point to hardware trouble include:
- No sound from any source, including devices connected directly to the receiver.
- ARC works intermittently or only when the cable is moved.
- The receiver displays normal video switching but never outputs audio.
- Specific HDMI ports stop working while others remain functional.
At that stage, a qualified AV technician can test board-level faults, port damage, and output stage issues.
If your Marantz receiver is under warranty, contact Marantz or an authorized service center before opening the unit or attempting repair.
A Quick Troubleshooting Order That Saves Time
If you want the fastest path to restoring sound, follow this order:
- Replace or reseat the HDMI cable.
- Reboot the TV and Marantz receiver.
- Confirm ARC or eARC is enabled on both devices.
- Set the TV digital audio output to PCM.
- Test another source directly through the receiver.
- Review HDMI Control, input assignment, and mute settings.
- Update firmware on the TV and receiver.
Using this sequence keeps you focused on the most likely causes first and avoids unnecessary factory resets or service calls.