STR-DE925 Center No Audio

Archived from groups: rec.audio.tech (More info?)

I have a Sony STR-DE925, that the center channel frequently got no
audio, If I turn up the volume it got audio again. Does anyone know
what part is broken and how do I get it repaired. thanks..

Archived from groups: rec.audio.tech (More info?)

RdM <rdm@orcon.net.zn> wrote in message news:<suds7050enboq0o6r02n1jrhm8iptik43s@4ax.com>...
> rcho@netzero.net (rcho) wrote:
>
> : I have a Sony STR-DE925, that the center channel frequently got no
> : audio, If I turn up the volume it got audio again. Does anyone know
> : what part is broken and how do I get it repaired. thanks..
>
> Possibly nothing is broken but the source you are using has no or very
> little encoded centre channel information?

or the center speaker is not turned on in the user menu or the volume
for the center spk is set low. if you have a stereo signal you should
get something.

Archived from groups: rec.audio.tech (More info?)

Well, could be the relay involved with the center channel is cutting out.
Sony's don't seem to have this problem too much, but it certainly does
happen.

You could take an object such as the plastic handle of a screwdriver and tap
around on the relays and see if this initiates or temporarily fixes the
problem.

Mark Z.

--
Please reply only to Group. I regret this is necessary. Viruses and spam
have rendered my regular e-mail address useless.


"rcho" <rcho@netzero.net> wrote in message
news:ff42b0ac.0404151025.1bdfb5e8@posting.google.com...
> jfaudio@adelphia.net (jfaudio) wrote in message
news:<65d8202f.0404150630.42ab5bad@posting.google.com>...
> > RdM <rdm@orcon.net.zn> wrote in message
news:<suds7050enboq0o6r02n1jrhm8iptik43s@4ax.com>...
> > > rcho@netzero.net (rcho) wrote:
> > >
> > > : I have a Sony STR-DE925, that the center channel frequently got no
> > > : audio, If I turn up the volume it got audio again. Does anyone know
> > > : what part is broken and how do I get it repaired. thanks..
> > >
> > > Possibly nothing is broken but the source you are using has no or very
> > > little encoded centre channel information?
> >
> > or the center speaker is not turned on in the user menu or the volume
> > for the center spk is set low. if you have a stereo signal you should
> > get something.
>
> I'm using 5.1 on the reciever. I still do get audio on the center
> channel. Sometime I'm watching a movie. the center channel will get no
> audio at all. And when I turn up the volume, the audio comes back. I
> know its the reciever, because I switch speakers and it does the same
> thing with the center channel.

Archived from groups: rec.audio.tech (More info?)

It appears to be located on a small board attached to the rear panel. Right
there where the center and rear speakers connect. Maybe just a bad solder
connection at a speaker terminal.


Mark Z.

--
Please reply only to Group. I regret this is necessary. Viruses and spam
have rendered my regular e-mail address useless.


"rcho" <rcho@netzero.net> wrote in message
news:ff42b0ac.0404172057.40f4029e@posting.google.com...
> Where does the relays located and how does it look like? I haven't
> open the cover to check inside yet. If I tap the center channels + or
> - audio plugs it works again. then it will go out 30 to hrs later..
> If I turn on and off the reciever I will get the audio again. Same
> with the volume up (only) not down..
>
>
>
>
> "Mark D. Zacharias" <mzacharias@yis.us> wrote in message
news:<c5nbbo$3kp2o$1@ID-180484.news.uni-berlin.de>...
> > Well, could be the relay involved with the center channel is cutting
out.
> > Sony's don't seem to have this problem too much, but it certainly does
> > happen.
> >
> > You could take an object such as the plastic handle of a screwdriver and
tap
> > around on the relays and see if this initiates or temporarily fixes the
> > problem.
> >
> > Mark Z.
> >
> > --
> > Please reply only to Group. I regret this is necessary. Viruses and spam
> > have rendered my regular e-mail address useless.
> >
> >
> > "rcho" <rcho@netzero.net> wrote in message
> > news:ff42b0ac.0404151025.1bdfb5e8@posting.google.com...
> > > jfaudio@adelphia.net (jfaudio) wrote in message
> > news:<65d8202f.0404150630.42ab5bad@posting.google.com>...
> > > > RdM <rdm@orcon.net.zn> wrote in message
> > news:<suds7050enboq0o6r02n1jrhm8iptik43s@4ax.com>...
> > > > > rcho@netzero.net (rcho) wrote:
> > > > >
> > > > > : I have a Sony STR-DE925, that the center channel frequently got
no
> > > > > : audio, If I turn up the volume it got audio again. Does anyone
know
> > > > > : what part is broken and how do I get it repaired. thanks..
> > > > >
> > > > > Possibly nothing is broken but the source you are using has no or
very
> > > > > little encoded centre channel information?
> > > >
> > > > or the center speaker is not turned on in the user menu or the
volume
> > > > for the center spk is set low. if you have a stereo signal you
should
> > > > get something.
> > >
> > > I'm using 5.1 on the reciever. I still do get audio on the center
> > > channel. Sometime I'm watching a movie. the center channel will get no
> > > audio at all. And when I turn up the volume, the audio comes back. I
> > > know its the reciever, because I switch speakers and it does the same
> > > thing with the center channel.

Archived from groups: rec.audio.tech (More info?)

We're probably back to the relay. At some point someone with an oscilloscope
is going to need to trace this. In all likelihood the amp output is OK but
the signal is getting lost somewhere prior to the speaker terminals.

Mark Z.

--
Please reply only to Group. I regret this is necessary. Viruses and spam
have rendered my regular e-mail address useless.


"rcho" <rcho@netzero.net> wrote in message
news:ff42b0ac.0404181953.d45ceb1@posting.google.com...
> I checked it don't appears to be a bad solder on the center channel..
> What should I check next.
>
>
>
> "Mark D. Zacharias" <mzacharias@yis.us> wrote in message
news:<c5tpce$4qcj3$1@ID-180484.news.uni-berlin.de>...
> > It appears to be located on a small board attached to the rear panel.
Right
> > there where the center and rear speakers connect. Maybe just a bad
solder
> > connection at a speaker terminal.
> >
> >
> > Mark Z.
> >
> > --
> > Please reply only to Group. I regret this is necessary. Viruses and spam
> > have rendered my regular e-mail address useless.
> >
> >
> > "rcho" <rcho@netzero.net> wrote in message
> > news:ff42b0ac.0404172057.40f4029e@posting.google.com...
> > > Where does the relays located and how does it look like? I haven't
> > > open the cover to check inside yet. If I tap the center channels + or
> > > - audio plugs it works again. then it will go out 30 to hrs later..
> > > If I turn on and off the reciever I will get the audio again. Same
> > > with the volume up (only) not down..
> > >
> > >
> > >
> > >
> > > "Mark D. Zacharias" <mzacharias@yis.us> wrote in message
> > news:<c5nbbo$3kp2o$1@ID-180484.news.uni-berlin.de>...
> > > > Well, could be the relay involved with the center channel is cutting
> > out.
> > > > Sony's don't seem to have this problem too much, but it certainly
does
> > > > happen.
> > > >
> > > > You could take an object such as the plastic handle of a screwdriver
and
> > tap
> > > > around on the relays and see if this initiates or temporarily fixes
the
> > > > problem.
> > > >
> > > > Mark Z.
> > > >
> > > > --
> > > > Please reply only to Group. I regret this is necessary. Viruses and
spam
> > > > have rendered my regular e-mail address useless.
> > > >
> > > >
> > > > "rcho" <rcho@netzero.net> wrote in message
> > > > news:ff42b0ac.0404151025.1bdfb5e8@posting.google.com...
> > > > > jfaudio@adelphia.net (jfaudio) wrote in message
> > news:<65d8202f.0404150630.42ab5bad@posting.google.com>...
> > > > > > RdM <rdm@orcon.net.zn> wrote in message
> > news:<suds7050enboq0o6r02n1jrhm8iptik43s@4ax.com>...
> > > > > > > rcho@netzero.net (rcho) wrote:
> > > > > > >
> > > > > > > : I have a Sony STR-DE925, that the center channel frequently
got
> > no
> > > > > > > : audio, If I turn up the volume it got audio again. Does
anyone
> > know
> > > > > > > : what part is broken and how do I get it repaired. thanks..
> > > > > > >
> > > > > > > Possibly nothing is broken but the source you are using has no
or
> > very
> > > > > > > little encoded centre channel information?
> > > > > >
> > > > > > or the center speaker is not turned on in the user menu or the
> > volume
> > > > > > for the center spk is set low. if you have a stereo signal you
> > should
> > > > > > get something.
> > > > >
> > > > > I'm using 5.1 on the reciever. I still do get audio on the center
> > > > > channel. Sometime I'm watching a movie. the center channel will
get no
> > > > > audio at all. And when I turn up the volume, the audio comes back.
I
> > > > > know its the reciever, because I switch speakers and it does the
same
> > > > > thing with the center channel.