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Godfather
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Discussion Starter · #1 ·
When it shows the overscan part of the test it says that a 2 or a 3 on the sides and at the top and bottom are proper overscan numbers.I have ran the test on my sony 60 xbr 2 and my samsung 42 plasma and the both have the same over scan readings.At the top I get a 4 at the bottom I get a 6 and onthe sides I get a 8. Is that normal?From what it says on the test that HDNET don't overscan there picture.And they say a 2 or a 3 is a proper reading.Then why does Directv overscan.I have seen some of the words cut off on the bottome of my screen on the science channel and history channel like it was over scaned.Is ther anyone else with the same thing I'm seeing?
 

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Hall Of Fame
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My Sony is almost spot on, but my Sammy is a little off center, very close though. There was a thread here a while back and the general consensus was that D* does not broadcast an over scan picture.
 

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DirecTV does not over scan.
With your Sony, there is a setting for Zero over scan [only with a 1080 signal].
What you're seeing on those channels is the broadcaster trying to modify a 4:3 original program to 16:9. TNT does the [poor] stretch-o-vision.
 

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WHen I set my Panansonic Plasma to zero overscan, I can see the very edge of each circle as well as all teh lines on teh side. For many Plasma and lcd sets, you can do this also (and you probably should as mine definitely looks clearer when overscan is set to 0 as it is not scaling). However, many RPTV sets will not go below 5% without tweaking.
 

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Godfather
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Discussion Starter · #10 ·
Lee L said:
WHen I set my Panansonic Plasma to zero overscan, I can see the very edge of each circle as well as all teh lines on teh side. For many Plasma and lcd sets, you can do this also (and you probably should as mine definitely looks clearer when overscan is set to 0 as it is not scaling). However, many RPTV sets will not go below 5% without tweaking.
I can't find a overscan adjustment on my samsung 42 plasma. but on my sony it is set to 0 and it still cuts the circles off just like the screen shot is.
 

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pfueri said:
I can't find a overscan adjustment on my samsung 42 plasma. but on my sony it is set to 0 and it still cuts the circles off just like the screen shot is.
Most overscan adjustemnts are in the service menu, and not the user menu.

With my Sony Bravia XBR2 [LCD] zero over scan is in the user's menu and does give me zero.
Sometime back when this first came up, it was new and I had problems with the test pattern. Sony Tech came out and went into the service menu. Though he claimed he didn't do anything [which looked like he didn't as I watched], when he came back out of it, I had zero over scan. :confused:

Here is what the test pattern is on my Sony: http://www.dbstalk.com/attachment.php?attachmentid=8381&d=1180552338
 

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Legend
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My HLT-6187S DLP is set to just Scan and centered with this pattern. This gives me just a little bit more Overscan then HDnet and much less then the pictures shown above. I can see the edges of the circle.
 

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MIMOTech said:
My HLT-6187S DLP is set to just Scan and centered with this pattern. This gives me just a little bit more Overscan then HDnet and much less then the pictures shown above. I can see the edges of the circle.
By "above" you're not meaning the link in my post [since it is zero overscan].
 

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Godfather
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Discussion Starter · #15 ·
veryoldschool said:
Most overscan adjustemnts are in the service menu, and not the user menu.

With my Sony Bravia XBR2 [LCD] zero over scan is in the user's menu and does give me zero.
Sometime back when this first came up, it was new and I had problems with the test pattern. Sony Tech came out and went into the service menu. Though he claimed he didn't do anything [which looked like he didn't as I watched], when he came back out of it, I had zero over scan. :confused:

Here is what the test pattern is on my Sony: http://www.dbstalk.com/attachment.php?attachmentid=8381&d=1180552338
How did he get to the service menu I have a sony sxrd 60xbr2 .we might have close to the same software.
 

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Godfather
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Discussion Starter · #16 ·
veryoldschool said:
That is the "normal" 3-5% overscan.
With zero overscan, you'll see the closed captioning data "noise" at the top of the screen.
You said that this was normal.The above screen shots.But you posted a screen shot of yours and it showed the entire test screen.So what is normal ?What do I have to do to get zero over scan and why is the over scan the same on my sony and samsung>
 

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pfueri said:
I can't find a overscan adjustment on my samsung 42 plasma. but on my sony it is set to 0 and it still cuts the circles off just like the screen shot is.
On my Samsung LCD, it's selected via the display mode.... "16:9" mode = overscan, and "Just Scan" mode = 16:9 with no overscan.
 

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pfueri said:
You said that this was normal.The above screen shots.But you posted a screen shot of yours and it showed the entire test screen.So what is normal ?What do I have to do to get zero over scan and why is the over scan the same on my sony and samsung>
Normal is slightly less than the zero overscan that I posted.
I can't find my "normal" test pattern photo, as this came from well over a year ago's work.
If you really need what it looks like or the "hash marks", then I'll run the test pattern and either post the marks or take another photo with "normal" overscan.

The "main point" was to show that DirecTV doesn't overscan, and show it.
 

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Cutting Edge: ECHELON '07
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pfueri said:
You said that this was normal.The above screen shots.But you posted a screen shot of yours and it showed the entire test screen.So what is normal ?What do I have to do to get zero over scan and why is the over scan the same on my sony and samsung>
Every TV made is different in their overscan and 3-5% is what most typcially aim for. 0 overscan is actually not normal and as mentioned can introduce noise on the sides. A little overscan is good.

The overscan on my Hitachi isn't the greatest. It's 5 left, 5 top, 8 left and 4 bottom or something screwy like that. I can't get into the service menu easily to adjust and I could brick my TV if I tried. 6 years later I still have that TV and it's fine. It's just something I don't worry about. :)
 
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