Sound keeps muting on LG 37LG6000

[Audio77]

Hello, I purchased an 37LG6000 TV in Dec 08, serial no: 809MATW8Q409, software version V03.28.00.

I began to notice that the sound would mute intermittently after about 8 hours of viewing. Most of the time if would do it 1-2 times in an evening, sometimes it doesn't mute for about 10 days, but then it will mute 4-6 times in the same evening.

If I turn off/on my Sky+ box the sound returns.
If I turn off/on the TV while watching Sky the sound returns but defaults to a Freeview. I don't watch much Freeview, not noticed it mute.
If I turn Clear Voice off/on the sound returns.
If I turn Auto Volume on/off the sound returns.

I have replaced the SCART lead and tried the different sound settings to no avail.

I don't think the problem is my Sky+ box and SCART control is set to on.

Thanks for your help.

 

[kiyomitsu79]

I have the exact same problem on my 32LG7000. The sound will go whilst I'm watching sky. An engineer is supposed to be coming this week to update the firmware. Looks like the 6000 series has the same software bugs