I have a 4639 UEC decoder which has developed audio problems. For no reason the audio vanishes. It might return after a few minutes or sometimes not. Changing the Chanel will restore audio most of the time. Audio is via RCA out. Tried all the usual things upgrade, factory reset without success. I do recall seeing some symptoms similar on a thread here but alas all my searching didn't reveal anything, it may be just wishfull thinking, however f anyone does remember or has a fix it would be greatly appreciated.
Thanks in advance.
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