no sound on hdmi

[norrie66]

I have a  kd 55x8005c tv and when I connect an h96 max android box there is no sound.tried all HDMI sockets, changed HDMI cables, tried the box on 4 different makes of tv and all working fine and the firmware is also up to date.done a soft reset and factory reset but still no joy.

thing is when its plugged in to say HDMI 1 and I switch to HDMI 2 then back to HDMI 1 via the remote then the sound appears but if I change apps, say youtube to Netflix then the sound disappears again and the only way to get it back again is to switch between HDMI inputs via the remote

any suggestions would be greatly appreciated

[Joe_Dohn]

Do you have the latest software version installed on your TV? It's probably a good idea to check the same for your Android box as well.

[norrie66]

software is up to date

[Joe_Dohn]

Have you tried different HDMI cables? or trying the box with a different TV/Display device?

[norrie66]

Tried different HDMI cables still not working.tried the box on 4 different non sonyTV's, working on all 4 

[Joe_Dohn]

Do you have Enhanced HDMI signal format enabled under External Inputs?

[norrie66]

Have enabled and disabled the Enhanced HDMI signal format.makes no difference

[Joe_Dohn]

Usually it's enabled in HDMI 2 & 3, were you using either at the time?

I'd also recommend trying to enable/disable Bravia Sync and testing in both situations.

[norrie66]

I have tried all HDMI inputs and also have enabled/disabled Bravia sync 

[Joe_Dohn]

This seems like a software issue rather than hardware since it's intermittent and works when switching the input source.

Have you tried resetting the TV to factory settings?

- J.D.