"Rob" wrote in message
eb.com...
On 14/02/2011 03:14, Keith G wrote:


OK, I unplugged the telly and the sound from the tuner did not diminish
as the 'EPG time' came and went. I plugged the telly back in well after
the normal 'EPG time' and the sound level went down for a couple of
seconds and then recovered. No EPG/Stand By light flashing.

More stumped now than I was before!!

:-)


Well, my guess FWIW is that the auto-mute, that thing the FM tuner does to
cut out the hash when tuning between stations, is activated for a second
or two when the EPG download kicks in.

Can you switch the automute on the tuner off? And then wait until 3am and
see if it does it again :-)


Just to make it even more of a mystery I have discovered it also happens
when a CD is playing, so it's not a 'tuner' thing - either way (CD or Tuner)
the sound level drops when the TV is switched on and goes back up to normal
when the TV is switched off.

I'm starting to think it's an amplifier thing. The amp is a Denon PMA-510AE.