AV SURROUND RECEIVER SR5006 (see details)

🔹 Model Info

• Name: Marantz SR5006

• Type: 7.1 Channel AV Surround Receiver

• Year: ~2011 release (mid/high-end model back then)

• Power: ~100W per channel (8, 20Hz20kHz, 0.08% THD, 2ch driven)

🔹 Key Specs

• Audio Formats: Dolby TrueHD, DTS-HD Master Audio, Audyssey MultEQ XT

• HDMI Inputs: 6 in / 1 out (3D + ARC support)

• Other Inputs: Component, Composite, Optical, Coaxial, USB front input (iPod/iPhone compatible)

• Network: DLNA 1.5, AirPlay, Internet Radio, Ethernet port

• Speaker Channels: 7.1 with Zone 2 pre-outs

• Weight: ~10.5 kg

🔹 About the Issue (Functioning but no sound)

Common causes on SR5006:

1. Speaker protection mode unit may detect a shorted speaker wire or wrong impedance.

2. Amp board failure known issue on older Marantz/Denon where the audio output ICs fail.

3. HDMI board failure if no sound over HDMI, test analog inputs or headphone output.

4. Settings issue check if "Mute" or "Zone 2" is enabled, or if source is misconfigured.

5. Firmware bug a reset (factory reset via front panel) sometimes restores audio.