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Registered since

Nov 3, 2017

Screen flickers when Lifestyle Soundtouch 535/525 connected to Sony 65X8500D

Havw a Lifestyle 535 connecting to a Sony Bravia 65X8500D Smart TV. Connect to the TV using the (ARC) HDMI 4 port and screen flickers, sometimes going blank. Also flickers when connected to the HDMI 3 and HDMI 2 ports (2,3 and 4 are located in the rear centre of the TV). But there is no flickering when connected to the HDMI 1 port (located on rear right side). So able to change to port 1 but ny suggestions as to why there is flickering in the first place?