Problems with HDMI control with AV-amplifier

[nikorho]

I am trying to use HDMI for connection between KDL-50W805b and Yamaha TSR-700 AV-amplifier.

I cannot use ARC since the amplifier constantly losses connection with TV.

An optical cable connection is a bit better, but not stable (HMDI control is enabled both TV and amplifier). Symptoms, if I listen to music from NAS or blue-ray disk and open the TV, the amplifier switches source automatically from NAS/Blue ray to TV and the system sound vanishes. It looks like the TV lost connection to amplifier because I can see the sound output is switched to TV from a setup menu. If I switch it back to AV-amplifier the sound comes both TV and amplifier. The only way how I can fix it, is to close either TV or amplifier and open it once again.

The amplifier retailer claims this is the TV problem, but I am not convinced. Has anyone else have the same problem or idea what might be root cause to the problem?

[HannahEd01]

Hi nikorho, I'm sorry to hear that you're facing this issue. 

Try the below to resolve the issue: 

-Make sure that you're using the connections on the startup guide here: https://www.sony.com/electronics/support/res/manuals/4489/44895091M.pdf 

-Unplug the TV from the mains for two minutes, while removing all the external devices. 

-Make sure to update your TV: https://www.sony.co.uk/electronics/support/lcd-tvs-kdlxxw8xxb-series/kdl-50w805b/downloads/00017151

-Follow the steps here: https://helpguide.sony.net/gbmig/C5361001/v1/eng/index_998_595.html 

-Reset the TV to the factory settings: https://www.sony.co.uk/electronics/support/televisions-projectors-lcd-tvs/kdl-32ex301/articles/00170...

Let me know what happens, please.