priz

I recently purchased a Magnavox 37MF337B HDTV for my home theater and
am having an audio issue. I have it connected via a digital coax
SPDIF cable to a Pioneer VSX 515 A/V receiver and here is the
problem. Whenever I watch a digital TV channel, where the receiver
indicates the sound is in Dolby Digital, whether it is off air or
cable, I get frequent audio drop outs. This doesn't happen when I
watch ****og TV channels over cable or broadcast, which aren't Dolby
Digital.

When I watch DVDs that are in Dolby Digital, I don't have the audio
dropping out issue. The DVD player is a Panasonic RV26 connected to
the receiver through an optical digital TOSLINK cable. I've tried 2
different cables from two different manufacturers on the TV and the
problem persists. The receiver has 2 digital coax inputs on it and
I've tried both of them, yet I still have the problem.

When I watch a TV show using the TV's own speakers as opposed to my
home theater set up, the audio is fine on both ****og and digital
channels.

Anyone have any idea as to what could be causing this?

art

It sure sounds like you tested everything and came up empty. I guess I would
try disconnecting one speaker at a time from the receiver in case you are
getting an overload situation under the problem condition. There isn't much
left otherwise except to retest what you already did.

common_

I am a bit unclear from your post, but are you saying that you get
these "dropouts" from all the digital sources you send to the AV
receiver?

If so, its a problem with the d to a conversion of the reciever,,not
the sources. What vintage is the reciever?

az nomad

< 1) please quit top posting. backwards read don't people Normal>


If the system doesn't have drop outs on ****og playback then it isn't an
overload problem.

The problem is between the broadcaster and the the dolby digital decoder.

Either the tuner is defective, or the receiver's decoder can't handle some
aspect of the tuner's dolby digital that is different from the DVD player.

Most likely, the HDTV tuner is defective.

mykey

the signal is too weak, and is most likely the cable companies fault.
they never admit it.
when the cable company takes programs off a satellite dish, they
convert it with a modulator that is out of calibration, and you wind
up with garbage. Call the FCC, that makes them pay attention.

nospam

In article <1191817714.898067.207200@19g2000hsx.googlegroups. com> mykey <mykeymykey01@yahoo.com> writes:

Or, note that it happens over the air, which is most likely *not* the
cable company at fault...

Alan

priz

When I try to watch TV from a digital channel using my surround sound
receiver, the receiver is showing the source is Dolby Digital, the
audio drops out alot. It's like the TV was muted and unmuted
quickly. When I try to watch an ****og TV channel, the receiver is
showing it isn't Dolby Digital and the audio doesn't drop out at all.

When I play a DVD that is Dolby Digital sound, there are no problems
at all. The problem only exists when I'm watching a Digital TV
channel using Dolby Digital sound. This happens if the channel is on
cable or off air.

When I use the TV's own speaker, there are no audio problems at all.

Not sure what to think of this.

priz

I was thinking along the lines of Dolby incompatability but wasn't
sure. The problem happens on all DTV channels when I'm using the
reciever, but not when I'm using the TV's built in speakers. I would
think if the HDTV tuner wasn't working properly, perhaps it would cut
out there too. Correct me if I'm wrong.

The Pioneer VSX 515 receiver I'm using to decode Dolby was purchased
in July 2005. I'm not sure if that makes a difference or not. Don't
really want to have to buy a new receiver since I just spent so much
on the TV.

Priz

l alpert

I have previously used the same exact receiver with no compatibility issues
with either OTA or a cable box (using the co-ax out from an older Mits
55511).

There may be an issue with the TV digital output.

az nomad

It may have a bad s/pdif output.