diagonal lines on plasma tv

Hi

I recently bought a 50 inch Vizio plasma tv. At first we saw diagonal
lines on the screen. We don't see them any more, but we haven't done
anything to fix it, so I assume they're only visible under certain
conditions.


Are diagonal lines something that should be expected? Is there any
more information I can provide?

Thanks.

David

wrote in message
oups.com...
Hi

I recently bought a 50 inch Vizio plasma tv. At first we saw diagonal
lines on the screen. We don't see them any more, but we haven't done
anything to fix it, so I assume they're only visible under certain
conditions.


Are diagonal lines something that should be expected? Is there any
more information I can provide?

Was your source analog or digital?
If you were looking at a regular NTSC source it might
have ben RF interference.

Under what conditions do you see these diagonal lines? What video
source are you viewing when you see these lines--cable TV, DVD,
satellite?

These lines indicate a faulty ground loop somewhere.

I can't reproduce the diagonal lines, so I'm not sure when I see
them. It was just standard tv shows.

When we did see the lines, it was only with regular cable tv. They
didn't appear when we were watching the DVD.

Sorry I don't have any more information. It happened fairly regularly
when we first bought the tv, but lately (its only been a week), we
can't reproduce it.

On May 12, 6:47 pm, "Pete Fraser" wrote:
wrote in message

oups.com...

Hi

I recently bought a 50 inch Vizio plasma tv. At first we saw diagonal
lines on the screen. We don't see them any more, but we haven't done
anything to fix it, so I assume they're only visible under certain
conditions.

Are diagonal lines something that should be expected? Is there any
more information I can provide?

Was your source analog or digital?
If you were looking at a regular NTSC source it might
have ben RF interference.

The source was standard cable tv. We're going to upgrade the cable
box to one that support hdtv and uses the hdmi cable.

Thanks.

There's a bad ground somewhere in the cable, and it's not necessarily
within your house. It could be a neighbor.

I would *think* that a digital cable box would solve the line issue, but
the bad ground may cause other problems on your digital cable box. Keep
an eye out for anything that looks amiss.


It sounds like its not a problem with the tv then. I mostly wanted to
make sure that the tv is ok before the 30 day (store) warranty runs
out.

I'll be picking up the hdmi cable box this week. Hopefully that will
solve all of the problems.

I'm curious about the hdmi cable box. Is the picture significantly
better than with the regular cable box?


Thanks.

David

I've been seeing the same effect. Diagonal lines on some over the air
programs, mostly HD not on SD, with certain background colors like
brown, gray or light blue. Based on the "ground loop" response, I
unplugged the plasma TV from the power block with surge protector and
plugged the TV directly into the wall. It's been three days now and no
diagonal lines.

wrote:
Hi

I recently bought a 50 inch Vizio plasma tv. At first we saw diagonal
lines on the screen. We don't see them any more, but we haven't done
anything to fix it, so I assume they're only visible under certain
conditions.


Are diagonal lines something that should be expected? Is there any
more information I can provide?

Thanks.

David