Need to restart my HT-ZF9 to get sound back

[csaoutre]

Hello,

I have a problem with my HT-ZF9 soundbar. For a few weeks, I often need to restart it (unplug!) to get back sound from my 2 hdmi sources (Apple TV 4K and Nintendo Switch).

I really don't understand.

I already tried to reset the soundbar.

What can I do please?

[Win_88]

Hi

A software update could be the answer: https://www.sony.co.uk/electronics/support/home-theater-sound-bars-home-theater-systems/ht-zf9/downl...

Win_88

[csaoutre]

Thanks. I got the same answer from the support.
My soundbar is up to date for months.
Best regards.

[Win_88]

Tell us more about the connection map. What TV do you have and how are the external devices connected? Does the Sound drop when playing over Bluetooth?

Win_88

[csaoutre]

Thanks for your help.

Here is my map:

• Thomson 49UC6406 TV connected to HT-ZF9's HDMI OUT, the HDMI on TV is the ARC one
• Apple TV 4K connected to HDMI 1 IN
• Nintendo Switch connected to HDMI 2 IN
• HDMI cables are HDMI 2.0 (bought on Amazon, ASIN is B002U3161M)

I don't use the soundbar as a Bluetooth receiver.

I have the subwoofer and the 2 rear wireless satellites.

The "no sound" problem can occur on my Apple TV or Switch so I don't think the devices are responsible, the TV has the picture so I don't think it has a problem and the sound is just a HDMI device <-> soundbar deal.

The sound doesn't drop during a playback.

The situation can occur on a soft restart of the setup (TV, soundbar, ATV).

An HDMI switch between 1 and 2 doesn't work, a volume up/down doesn't work, a preset change (auto, movie, game, ...) doesn't work, a soft off/on of the soundbar doesn't work.

It needs to be replugged.

Note that the soundbar is able to produce sound if I launch Spotify as a music service from the HT-ZF9 menu.

It seems related to HDMI.

Best regards.