Connect a smart TV to an old amplifier

Pandawasabi -  
 Pandawasabi -
Hello,

I have a Hisense 43AE7200F TV and a very old Technics SA-EX700 amplifier.

On my previous setup, I connected a Jack > RCA (red and white) adapter to the headphone jack at the back of the TV, and then connected it to an input of my amplifier, everything worked perfectly.

Upon receiving the new TV, I tried to do the same thing, but there was no headphone jack, only an "AV IN" port. However, when I connected to it, there was no sound in the amplifier.

I then tried using an SPDIF > RCA adapter, and that worked, but it's not suitable for me because the only way to adjust the volume is by turning the knob on the amplifier, which is not very practical... I would like to be able to control the volume with the TV remote.

I then called Hisense's technical support, and they confirmed the absence of a headphone jack but mentioned the HDMI ARC audio output. I then bought an HDMI to VGA + Jack adapter. Unfortunately, after adjusting the TV for sound output in ARC and making the correct connections: no sound...

I finally tested this adapter on my PC, and there I had sound coming from the Jack socket... So the adapter works!

I’m a bit lost on what my remaining options are or if I made a mistake in a connection/setting... If anyone can help, I would appreciate it! :D

Thank you

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