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TV LG 47LB731V (47 inch) sound sometimes only after restart


Dobiasd

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Hi,

 

my TV, recently bought from Amazon, sometimes has no sound. After a restart the sound is there most of the times. But occasionally multiple restarts are needed. When the sound is working it keeps working (up to the next restart).

 

My setup is very simple: One sat receiver is connected via HDMI. And that is it.

 

The TV already was sent to LG customer service. But it came back because "problem not reproducible".

 

I already tried the following things:

- used a different HDMI cable

- used another sat receiver

- used a different HDMI Port (instead of port 1)

- reset to factory settings of the TV

- connected external speakers

- installed new software version

 

But all these things did not help. Any idea what I should try next?

 

Dobiasd

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