Audio Problem with HDTV Monitor

I have an RCA Scenium DLP HDPL50PW164 and the picture is great.

The problem I am having is an audio one. I keep getting a humming or buzzing
in the background when we watch TV through our Comcast HD Cable box.

I tried adjusting the volume on the cable box itself but it did not solve
the problem

I am using component cables for the video and RCA plugs for the audio.

Any suggestions as what I can to to eliminate this buzzing?

"Postal68" wrote in message
. ..
I have an RCA Scenium DLP HDPL50PW164 and the picture is great.

The problem I am having is an audio one. I keep getting a humming or
buzzing in the background when we watch TV through our Comcast HD Cable
box.

I tried adjusting the volume on the cable box itself but it did not solve
the problem

I am using component cables for the video and RCA plugs for the audio.

Any suggestions as what I can to to eliminate this buzzing?


Try running the audio through a stereo? That will tell you where the
problem is and with a set like that you should really go to to a home
theather receiver anyway

"Leadfoot" wrote in message
...

"Postal68" wrote in message
. ..
I have an RCA Scenium DLP HDPL50PW164 and the picture is great.

The problem I am having is an audio one. I keep getting a humming or
buzzing in the background when we watch TV through our Comcast HD Cable
box.

I tried adjusting the volume on the cable box itself but it did not solve
the problem

I am using component cables for the video and RCA plugs for the audio.

Any suggestions as what I can to to eliminate this buzzing?


Try running the audio through a stereo? That will tell you where the
problem is and with a set like that you should really go to to a home
theather receiver anyway







I also have it running through a 5:1 surround with a sub woofer, no humming
then, only when I use the monitors built in speakers.

I've tried all kind of setting via the monitors audio adjustments in the
menu, but the humming is always there.

Postal68 wrote:
"Leadfoot" wrote in message
...

"Postal68" wrote in message
. ..
I have an RCA Scenium DLP HDPL50PW164 and the picture is great.

The problem I am having is an audio one. I keep getting a humming or
buzzing in the background when we watch TV through our Comcast HD
Cable box.

I tried adjusting the volume on the cable box itself but it did not
solve the problem

I am using component cables for the video and RCA plugs for the
audio. Any suggestions as what I can to to eliminate this buzzing?


Try running the audio through a stereo? That will tell you where the
problem is and with a set like that you should really go to to a home
theather receiver anyway







I also have it running through a 5:1 surround with a sub woofer, no
humming then, only when I use the monitors built in speakers.

I've tried all kind of setting via the monitors audio adjustments in
the menu, but the humming is always there.

It sounds like a ground loop problem. Is everything plugged into the same
circuit? If not get a power strip and plug everything into that so that they
all have a common ground and common-common. Next if that doesn't solve it
start grounding everything to each other so that any leakage is dumped to
ground instead of the hum you hear. This used to be common in component
stereo systems of the '70's- 80's before polarized plugs etc.

Good luck, Rich

Rich,
That is what I was thinking immediately myself. But then I though most
"modern" components solved this problem. They all are plugged into the same
grounded power strip.

How would I ground them individually?


"Rich" wrote in message
...
Postal68 wrote:
"Leadfoot" wrote in message
...

"Postal68" wrote in message
. ..
I have an RCA Scenium DLP HDPL50PW164 and the picture is great.

The problem I am having is an audio one. I keep getting a humming or
buzzing in the background when we watch TV through our Comcast HD
Cable box.

I tried adjusting the volume on the cable box itself but it did not
solve the problem

I am using component cables for the video and RCA plugs for the
audio. Any suggestions as what I can to to eliminate this buzzing?


Try running the audio through a stereo? That will tell you where the
problem is and with a set like that you should really go to to a home
theather receiver anyway







I also have it running through a 5:1 surround with a sub woofer, no
humming then, only when I use the monitors built in speakers.

I've tried all kind of setting via the monitors audio adjustments in
the menu, but the humming is always there.

It sounds like a ground loop problem. Is everything plugged into the same
circuit? If not get a power strip and plug everything into that so that
they all have a common ground and common-common. Next if that doesn't
solve it start grounding everything to each other so that any leakage is
dumped to ground instead of the hum you hear. This used to be common in
component stereo systems of the '70's- 80's before polarized plugs etc.

Good luck, Rich

"Postal68" wrote in message
. ..
Rich,
That is what I was thinking immediately myself. But then I though most
"modern" components solved this problem. They all are plugged into the
same
grounded power strip.

How would I ground them individually?


"Rich" wrote in message
...
Postal68 wrote:
"Leadfoot" wrote in message
...

"Postal68" wrote in message
. ..
I have an RCA Scenium DLP HDPL50PW164 and the picture is great.

The problem I am having is an audio one. I keep getting a humming or
buzzing in the background when we watch TV through our Comcast HD
Cable box.

I tried adjusting the volume on the cable box itself but it did not
solve the problem

I am using component cables for the video and RCA plugs for the
audio. Any suggestions as what I can to to eliminate this buzzing?


Try running the audio through a stereo? That will tell you where the
problem is and with a set like that you should really go to to a home
theather receiver anyway







I also have it running through a 5:1 surround with a sub woofer, no
humming then, only when I use the monitors built in speakers.

I've tried all kind of setting via the monitors audio adjustments in
the menu, but the humming is always there.

It sounds like a ground loop problem. Is everything plugged into the
same
circuit? If not get a power strip and plug everything into that so that
they all have a common ground and common-common. Next if that doesn't
solve it start grounding everything to each other so that any leakage is
dumped to ground instead of the hum you hear. This used to be common in
component stereo systems of the '70's- 80's before polarized plugs etc.

Good luck, Rich

Check that the outlet is grounded and otherwise wired correctly. You can get
a tester about anywhere that sells receptacles and switches for cheap. House
wiring problems are not uncommon.

Postal68 wrote:
"Leadfoot" wrote in message
...
"Postal68" wrote in message
. ..
I have an RCA Scenium DLP HDPL50PW164 and the picture is great.

The problem I am having is an audio one. I keep getting a humming or
buzzing in the background when we watch TV through our Comcast HD Cable
box.

I tried adjusting the volume on the cable box itself but it did not solve
the problem

I am using component cables for the video and RCA plugs for the audio.

Any suggestions as what I can to to eliminate this buzzing?

Try running the audio through a stereo? That will tell you where the
problem is and with a set like that you should really go to to a home
theather receiver anyway





I also have it running through a 5:1 surround with a sub woofer, no humming
then, only when I use the monitors built in speakers.

I've tried all kind of setting via the monitors audio adjustments in the
menu, but the humming is always there.



Some monitors just have poor audio systems (computer monitors with
built-in speakers are typically awful in this respect). Do you have the
same problems with OTA signals?

"Postal68" wrote in message
news

"Leadfoot" wrote in message
...

"Postal68" wrote in message
. ..
I have an RCA Scenium DLP HDPL50PW164 and the picture is great.

The problem I am having is an audio one. I keep getting a humming or
buzzing in the background when we watch TV through our Comcast HD Cable
box.

I tried adjusting the volume on the cable box itself but it did not
solve the problem

I am using component cables for the video and RCA plugs for the audio.

Any suggestions as what I can to to eliminate this buzzing?


Try running the audio through a stereo? That will tell you where the
problem is and with a set like that you should really go to to a home
theather receiver anyway







I also have it running through a 5:1 surround with a sub woofer, no
humming then, only when I use the monitors built in speakers.

I've tried all kind of setting via the monitors audio adjustments in the
menu, but the humming is always there.


Try the rca jacks hooked up to the tv on the surround system, the cd or aux
input should work, if you get humming there it tells you the tv is ok. The
other option is to try some other audio device by plugging it into the the
TV

And as the other posters have said, ground loop is a strong possibility

Unplugging and replugging everything has been known to work also.

"Postal68" wrote in message
. ..
I have an RCA Scenium DLP HDPL50PW164 and the picture is great.

The problem I am having is an audio one. I keep getting a humming or
buzzing in the background when we watch TV through our Comcast HD Cable
box.

I tried adjusting the volume on the cable box itself but it did not solve
the problem

I am using component cables for the video and RCA plugs for the audio.

Any suggestions as what I can to to eliminate this buzzing?


Many ground loop problems like this can be entirely eliminated by using the
optical cable option for your audio. No metal = no current = no loop = no
hummmmmmmmmmmmmmmmmmmmmm.

David wrote:
"Postal68" wrote in message
. ..
I have an RCA Scenium DLP HDPL50PW164 and the picture is great.

The problem I am having is an audio one. I keep getting a humming or
buzzing in the background when we watch TV through our Comcast HD Cable
box.

I tried adjusting the volume on the cable box itself but it did not solve
the problem

I am using component cables for the video and RCA plugs for the audio.

Any suggestions as what I can to to eliminate this buzzing?


Many ground loop problems like this can be entirely eliminated by using the
optical cable option for your audio. No metal = no current = no loop = no
hummmmmmmmmmmmmmmmmmmmmm.

An audio cable with a broken ground wire (or not connected to the RCA
plug) can also introduce hum.