Home Theater Tutorials

Learn how to fix Marantz receiver HEOS not working with practical steps for network, app, firmware, and setup issues.

A practical guide to why Dolby Atmos stops working on the Marantz Cinema 50 and how to restore immersive surround sound.

Resolve Marantz AirPlay issues with practical network, firmware, and device-level fixes that restore reliable streaming.

Learn why a Marantz receiver may not decode DTS:X and how to fix format, firmware, speaker, and source settings fast.

Learn why Marantz receiver AirPlay stops working and how to fix network, firmware, and Apple device issues fast.

Learn how to diagnose and fix Marantz receiver audio delay with proven settings checks, HDMI troubleshooting, and lip sync adjustments.

A practical guide to diagnosing Marantz receiver no video output issues, from HDMI settings and cables to firmware, input routing, and hardware faults.

Learn why Marantz receiver rear speakers stop working and how to diagnose settings, wiring, speaker modes, and hardware faults.

Diagnose why a Marantz SR5015 has no sound from a TV and learn the most reliable ARC, eARC, HDMI, and settings fixes.