OK, a bit more *on topic* than of late:

Two things happen with my bedroom setup smack on 3 am: The standby light on
my little digital telly starts flashing to denote that it is downloading the
EPG and at exactly the same moment my FM tuner/hifi amp goes very quiet (but
not completely silent). It goes back up to normal when the light stops
flashing on the telly. Both the tuner and the telly are connected to the
same (Denon SS) amp at 'line level' otherwise there is no communication
between the two bits of kit.

Anybody got a clue what is going on?

"Keith G" wrote in message
...

OK, a bit more *on topic* than of late:

Two things happen with my bedroom setup smack on 3 am: The standby light
on my little digital telly starts flashing to denote that it is
downloading the EPG and at exactly the same moment my FM tuner/hifi amp
goes very quiet (but not completely silent). It goes back up to normal
when the light stops flashing on the telly. Both the tuner and the telly
are connected to the same (Denon SS) amp at 'line level' otherwise there
is no communication between the two bits of kit.

Anybody got a clue what is going on?




Ghosts in the machine?

On 13/02/2011 14:49, Godfrey Wilkes wrote:


"Keith G" wrote in message
...

OK, a bit more *on topic* than of late:

Two things happen with my bedroom setup smack on 3 am: The standby
light on my little digital telly starts flashing to denote that it is
downloading the EPG and at exactly the same moment my FM tuner/hifi
amp goes very quiet (but not completely silent). It goes back up to
normal when the light stops flashing on the telly. Both the tuner and
the telly are connected to the same (Denon SS) amp at 'line level'
otherwise there is no communication between the two bits of kit.

Anybody got a clue what is going on?




Ghosts in the machine?



Indeed, very odd! Does the tuner mute if the TV is unplugged? If not, I
wonder if the tuner has some sort of mute activation thing going on?

Rob

"Rob" wrote in message
eb.com...
On 13/02/2011 14:49, Godfrey Wilkes wrote:


"Keith G" wrote in message
...

OK, a bit more *on topic* than of late:

Two things happen with my bedroom setup smack on 3 am: The standby
light on my little digital telly starts flashing to denote that it is
downloading the EPG and at exactly the same moment my FM tuner/hifi
amp goes very quiet (but not completely silent). It goes back up to
normal when the light stops flashing on the telly. Both the tuner and
the telly are connected to the same (Denon SS) amp at 'line level'
otherwise there is no communication between the two bits of kit.

Anybody got a clue what is going on?




Ghosts in the machine?



Indeed, very odd! Does the tuner mute if the TV is unplugged? If not, I
wonder if the tuner has some sort of mute activation thing going on?


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!!

:-)

On 14/02/2011 03:14, Keith G wrote:

"Rob" wrote in message
eb.com...
On 13/02/2011 14:49, Godfrey Wilkes wrote:


"Keith G" wrote in message
...

OK, a bit more *on topic* than of late:

Two things happen with my bedroom setup smack on 3 am: The standby
light on my little digital telly starts flashing to denote that it is
downloading the EPG and at exactly the same moment my FM tuner/hifi
amp goes very quiet (but not completely silent). It goes back up to
normal when the light stops flashing on the telly. Both the tuner and
the telly are connected to the same (Denon SS) amp at 'line level'
otherwise there is no communication between the two bits of kit.

Anybody got a clue what is going on?




Ghosts in the machine?



Indeed, very odd! Does the tuner mute if the TV is unplugged? If not,
I wonder if the tuner has some sort of mute activation thing going on?


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 :-)

Rob

"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.

Not enough information. Ideally we would need to know if the inputs on the
amp were all reduced. Were you accidentally listening to the radio via
freeview?

Also if not and the radio was all that was affected, what channel was it and
were others affected as well.
These answers would make the problem less mysterious I feel.

Brian

--
Brian Gaff....Note, this account does not accept Bcc: email.
graphics are great, but the blind can't hear them
Email:
__________________________________________________ __________________________________________________ __________


"Keith G" wrote in message
...

OK, a bit more *on topic* than of late:

Two things happen with my bedroom setup smack on 3 am: The standby light
on my little digital telly starts flashing to denote that it is
downloading the EPG and at exactly the same moment my FM tuner/hifi amp
goes very quiet (but not completely silent). It goes back up to normal
when the light stops flashing on the telly. Both the tuner and the telly
are connected to the same (Denon SS) amp at 'line level' otherwise there
is no communication between the two bits of kit.

Anybody got a clue what is going on?

"Brian Gaff" wrote in message
...
Not enough information. Ideally we would need to know if the inputs on the
amp were all reduced.


The input devices connected to the amp are my 'movies PC', my Technics FM
tuner and my Samsung Blu-ray player. The sound level is reduced on both the
tuner and BDP when I switch the telly on; I have not had a chance to check
what happens when the PC is playing.


Were you accidentally listening to the radio via
freeview?


No - Classic FM on an FM tuner.

If you short out one input while connected to another does the short affect
the other input, maybe something is a bit duff on the diode switching in the
amp.
Brian

--
Brian Gaff....Note, this account does not accept Bcc: email.
graphics are great, but the blind can't hear them
Email:
__________________________________________________ __________________________________________________ __________


"Keith G" wrote in message
...

"Brian Gaff" wrote in message
...
Not enough information. Ideally we would need to know if the inputs on
the amp were all reduced.


The input devices connected to the amp are my 'movies PC', my Technics FM
tuner and my Samsung Blu-ray player. The sound level is reduced on both
the tuner and BDP when I switch the telly on; I have not had a chance to
check what happens when the PC is playing.


Were you accidentally listening to the radio via
freeview?


No - Classic FM on an FM tuner.

"Brian Gaff" wrote in message
...
If you short out one input while connected to another does the short
affect the other input, maybe something is a bit duff on the diode
switching in the amp.


Brian, thanks for your suggestions but as the problem only manifests itself
at 3 am and then only for a few minutes, I'm not going to pull it all apart
to experiment with it. I've got to the stage with the various systems that
they have all become a mystery to me (to many possible connection
combinations) and I wouldn't know how to recreate them!!

:-)