Hi all, up front, I'm a noob, out of my comfort zone and hope I'm in the right place. I've been looking for answers to an audio issue that started 5 months ago, shortly after replacing my old receiver and I've found nothing in that time. I hope someone can help me by me posting my issues specifically. Let me know if I can explain anything further.
Setup: Sony TV KDL55W800B, Mac Mini (2011), ATV4, Oppo Bluray BDP-83, PS4, all connected to Marantz receiver SR6010, via HDMI. Issues started when I replaced my old Marantz SR7002 with the SR6010 in January.
Issue: Audio playback through the Mac mini (my media centre) was distorting sound intermittently. I'd be watching a show and every second sentence would drop out, or the sound would distort entirely, and then come back, completely at random. I initially assumed it was a VLC playback issue thru the Mac mini. I bought an Apple TV (Gen 4) to remove VLC playback from my setup in February & playback was fine, but amp started switching to AirPlay and zero'ing volume randomly. (Turned off ATV auto remote & devices, issue persists). Bluray & ATV started replicating the initial sound issue described by April. Volume now also seems to increase and decrease during playback randomly. These same issues are now witnessed using VLC, QuickTime, Plex (Mac mini), various blurays (Oppo & PS4), iView, Plex, Netflix, Stan (ATV). There's no consistency to when the sound will fail, or on which device. The only common element in the Marantz. I don't know the correct word but the speaking appears to get pitchy right before the problem hits, it's the first sign that the audio is about to malfunction.
I also have an issue that the receiver display will state 'muted' + mute icon on tv screen, yet I'll have full sound that I can adjust (also random & cannot replicate at will). I also find that when the receiver is turned off & the TV remains on that devices plugged into the receiver will sometimes still work through tv alone (audio & display).
- Introduced ATV & removed VLC use (problem now occurs when using ATV).
- Replaced all HDMI cables (no result).
- Turned off ATV auto remote control (as per idownloadblog article) (no result).
- Disconnected & reset receiver from factory settings, problem free for 4 weeks before issues resumed (in May 2016). Disconnecting power fixes issues from 30mins, up to 3 days before recommencing at random times, on any or all devices through receiver (results vary, problem remains)
- Turned off Eco mode on receiver (no result).
Any ideas besides returning to the store and hoping they can replicate these faults? I have captured some footage, but it seems the surest way to fix the problem is to try & record the fault with my iPhone.