DishNetwork ViP622 interlace problem
The pictures above show a problem I'm seeing when my Dish Network receiver is
set to send 1080i to my Samsung 1080p television. What you're seeing in the
left-side picture is the even/odd scan lines being drawn in the wrong order:
instead of 1-2, 3-4, 5-6 you are seeing 2-1, 4-3, 6-5.
I believe the scan lines that are out of order are not the 1080 scan
lines coming over the HDMI cable as 1080i, but rather the original 480 scan
lines coming from the non-HD satellite channel. That is, I think the 622 is
putting the original 480 lines into the image buffer wrong, then
This happens only when the DishNetwork receiver is displaying a non-HD channel and
only when it is set to output 1080i to the TV. If I set the receiver to output 720p
or if I display a high-def channel, it looks fine. This line-order problem
appears all the time on all standard-def channels, but it's only obvious with
certain types of content.
I see this on my Samsung HL-S6187W (a 1080p rear-projection TV using DLP
technology) and on a Sony SXRD rear-projection TV. Somebody online said he sees
it on his JVC 1080p TV also. Others have said they have the same Samsung as me
and they do not see this, so maybe it's only a problem with certain Dish
I'm looking for experiences from other people who have seen this, or if
anybody knows how to fix it. Please write to
firstname.lastname@example.org to share your
Here is a longer version of the story:
I have a Samsung 1080p DLP TV (model HL-S6187W) and the DishNetwork 622 receiver. Using
both HDMI and component connections, I see something bad on non-HD channels.
The problem is this: non-HD satellite channels are deinterlaced wrong. The
even/odd lines are inverted, displayed as odd/even. It happens everywhere, on
every non-HD channel, and it is obvious with non-moving high-contrast curved
shapes, like the Comedy Central logo in the corner of the screen.
When displaying HD channels with the 622 putting out 1080i, everything is fine.
When I set the receiver to 720p mode, or 480p or 480i and show a non-HD channel,
the line-ordering problem does not appear. The problem only happens on non-HD
channels when the receiver is set to 1080i. Again, the same thing happens at
1080i over HDMI and component. I'm not zooming or stretching anything.
I took my 622 to Circuit City and played a recorded SD show at 1080i and 720p
on a Sony XSRD TV. The sales guy and I saw exactly the same thing on this Sony
that I see on my Samsung.
I've written this up online (especially at dbstalk.com) and somebody with a
JCV TV says he's seen the same thing with his 622. At least two others with
similar Samsung TVs do not see it. This suggests it's a problem with only some
622's, not all of them. I don't know if it correlates with software versions;
mine is L366.
I have scheduled a "Trouble Call" with my local installer/tech office.
They'll be out Monday 3/12 between 0800 and noon, and (I hope) they will be
bringing a second 622 with them. If nothing else, I'll get somebody who works
for Dish to lay eyes on this instead of capturing it with words and photos.
This page was last edited
April 26, 2008.