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DickK · 25th May 2006, 11:35 AM

Hi,

Sorry, not quite sure where to put this question on the forum, but El Greco mentioned s-video in the "Analogue Cables" thread here and it got me thinking. I'm hoping a knowledgeable soul will enlighten me.

Back in 2000 I splurged on a Panasonic 36" wide screen, the TX-36PF10. It refreshes at 100Hz and has a very good picture. I use the s-video inputs from both the DVD player and the external digibox. The thing I've never been able to get right is the RGB picture which I can select for inputs on AV2 (IIRC). While the RGB picture is slightly crisper it always displays what looks like faint, slowly scrolling venetian blinds, about 1/2" deep, comprised of alternate light and dark strips. Everything else works as specified.

In the time that I've had the TV, I've used it with 2 different DVD players and the effect remains for both. Only my latest digibox has been capable of RGB, and the effect is there also.

Does anyone have any idea why this is occurring? I've lived with it so long it doesn't really both me, so I'm as interested in the reason for it as a solution, to be honest.

I have scoured the net and the problem seems to be relatively well known. However, the only clue I've come up with for solving this is to use something called a line-doubler, but they looked expensive and didn't guarantee a solution. Once I found a single reference to setting a value accessed via the service menu but could not find an item with exactly the same name so I left all as it was. That's rather vague, so apologies.

Any ideas?

The_Fire · 25th May 2006, 12:12 PM

What was the name of the value (both the one you were told and the one you found)?

DickK · 25th May 2006, 01:33 PM

The_Fire, I'm looking at a text file with all the menu options. "Vertical DC" rings a bell but I couldn't say for sure, what a maroon I are. I've googled and can't find a damned thing.

Ririon · 25th May 2006, 02:10 PM

A descendant of a fugitive Black slave in the West Indies in the 17th and 18th centuries?

http://dictionary.reference.com/search?q=maroon

See also:

http://en.wikipedia.org/wiki/Maroon_%28people%29

The_Fire · 25th May 2006, 03:30 PM

Does the bar look like what appears on a television or computer CRT screen when it's video taped? If it does, it will probably have to do with the vertical refresh rate which probably will be called something like vertical DC (don't hang me on it, I'm still researching the specs on your tube).
A too slow refresh rate/redraw setting can cause what you describe.
I'm desperately trying to download the operating manual from panasonic right now, but my acrobat reader doesn't really like me right now.....

DRBUZZ0 · 25th May 2006, 10:01 PM

Originally Posted by DickK

Hi,

Sorry, not quite sure where to put this question on the forum, but El Greco mentioned s-video in the "Analogue Cables" thread here and it got me thinking. I'm hoping a knowledgeable soul will enlighten me.

Back in 2000 I splurged on a Panasonic 36" wide screen, the TX-36PF10. It refreshes at 100Hz and has a very good picture. I use the s-video inputs from both the DVD player and the external digibox. The thing I've never been able to get right is the RGB picture which I can select for inputs on AV2 (IIRC). While the RGB picture is slightly crisper it always displays what looks like faint, slowly scrolling venetian blinds, about 1/2" deep, comprised of alternate light and dark strips. Everything else works as specified.

In the time that I've had the TV, I've used it with 2 different DVD players and the effect remains for both. Only my latest digibox has been capable of RGB, and the effect is there also.

Does anyone have any idea why this is occurring? I've lived with it so long it doesn't really both me, so I'm as interested in the reason for it as a solution, to be honest.

I have scoured the net and the problem seems to be relatively well known. However, the only clue I've come up with for solving this is to use something called a line-doubler, but they looked expensive and didn't guarantee a solution. Once I found a single reference to setting a value accessed via the service menu but could not find an item with exactly the same name so I left all as it was. That's rather vague, so apologies.

Any ideas?

What is the resolution of the TV? Is it an HDTV? Or is it just regular PAL?

DickK · 26th May 2006, 04:44 AM

Originally Posted by The_Fire

Does the bar look like what appears on a television or computer CRT screen when it's video taped? If it does, it will probably have to do with the vertical refresh rate which probably will be called something like vertical DC (don't hang me on it, I'm still researching the specs on your tube).
A too slow refresh rate/redraw setting can cause what you describe.
I'm desperately trying to download the operating manual from panasonic right now, but my acrobat reader doesn't really like me right now.....

Hi, it's not a single bar but many, just like a venetian blind. I appreciate your efforts. I'm at work right now but I'm sure I have the op. manual as a pdf at home.

Edited to eliminate wrong gender address

DickK · 26th May 2006, 04:46 AM

Originally Posted by DRBUZZ0

What is the resolution of the TV? Is it an HDTV? Or is it just regular PAL?

It's not HD so must be standard res I guess. Remember I bought it back in 2000.

DRBUZZ0 · 26th May 2006, 12:50 PM

Okay...

I looked it up and found some info. Looks like it is a widescreen standard definition tv.

In this case, a line doubler won't do you much good. A line doubler is a type of video processor which scales up the resolution of video beyond standard definition. The term is sometimes used interchangably with deinterlacer, but it is actually something different.

These types of processors are what you would use if you have a standard definition source and you want to upconvert it to display it on a high definition or enhanced definition set.

Since your set is standard defintion, and the signal is presumably standard definition, it shouldn't make any difference.

Couple questions.

1. Did it always do this?

2. Does it do this when connected to any source?

3. Have you checked to make sure that you have the source set to the correct resolution, scan rate ect?

b33fj3rky · 3rd June 2006, 08:14 AM

Originally Posted by DickK

Hi,

The thing I've never been able to get right is the RGB picture which I can select for inputs on AV2 (IIRC). While the RGB picture is slightly crisper it always displays what looks like faint, slowly scrolling venetian blinds, about 1/2" deep, comprised of alternate light and dark strips. Everything else works as specified.

Does anyone have any idea why this is occurring? I've lived with it so long it doesn't really both me, so I'm as interested in the reason for it as a solution, to be honest.

Any ideas?

I've only got one idea, and I swear I'm not saying this as a joke:

Copy protection. You think it could be that? Some kind of deliberate munging of the signal... I've had first hand woes with Macrovision copy protection, and I remember hearing vague, angry murmurs about new high-end TV's and built-in copy protection demanded by Hollywood et al.

25th May 2006, 11:35 AM	#1
DickK Graduate Poster Join Date: Mar 2003 Location: London Posts: 1,053	RGB Quality and my TV Hi, Sorry, not quite sure where to put this question on the forum, but El Greco mentioned s-video in the "Analogue Cables" thread here and it got me thinking. I'm hoping a knowledgeable soul will enlighten me. Back in 2000 I splurged on a Panasonic 36" wide screen, the TX-36PF10. It refreshes at 100Hz and has a very good picture. I use the s-video inputs from both the DVD player and the external digibox. The thing I've never been able to get right is the RGB picture which I can select for inputs on AV2 (IIRC). While the RGB picture is slightly crisper it always displays what looks like faint, slowly scrolling venetian blinds, about 1/2" deep, comprised of alternate light and dark strips. Everything else works as specified. In the time that I've had the TV, I've used it with 2 different DVD players and the effect remains for both. Only my latest digibox has been capable of RGB, and the effect is there also. Does anyone have any idea why this is occurring? I've lived with it so long it doesn't really both me, so I'm as interested in the reason for it as a solution, to be honest. I have scoured the net and the problem seems to be relatively well known. However, the only clue I've come up with for solving this is to use something called a line-doubler, but they looked expensive and didn't guarantee a solution. Once I found a single reference to setting a value accessed via the service menu but could not find an item with exactly the same name so I left all as it was. That's rather vague, so apologies. Any ideas?

25th May 2006, 12:12 PM	#2
The_Fire Unimpressed Female Join Date: Jan 2006 Location: 8th level of Hell - Maleborgia Posts: 3,038	What was the name of the value (both the one you were told and the one you found)?
	__________________ If anyone told you that I'm a nice person, they were either from a different level of existance, lying through their teeth or mentally instable. "We? That better be you and that invisible aardwarck in your pocket you are talking about, because I KNOW you are not stupid enough to open a giant can of whoop ass by claiming you know what I think." Stop Sylvia Browne

25th May 2006, 02:10 PM	#4
Ririon Cool cat Join Date: Jan 2005 Location: Trondheim, Norway Posts: 2,063	A descendant of a fugitive Black slave in the West Indies in the 17th and 18th centuries? http://dictionary.reference.com/search?q=maroon See also: http://en.wikipedia.org/wiki/Maroon_%28people%29
	__________________ Engineer by day, scientist by night.

25th May 2006, 03:30 PM	#5
The_Fire Unimpressed Female Join Date: Jan 2006 Location: 8th level of Hell - Maleborgia Posts: 3,038	Does the bar look like what appears on a television or computer CRT screen when it's video taped? If it does, it will probably have to do with the vertical refresh rate which probably will be called something like vertical DC (don't hang me on it, I'm still researching the specs on your tube). A too slow refresh rate/redraw setting can cause what you describe. I'm desperately trying to download the operating manual from panasonic right now, but my acrobat reader doesn't really like me right now.....
	__________________ If anyone told you that I'm a nice person, they were either from a different level of existance, lying through their teeth or mentally instable. "We? That better be you and that invisible aardwarck in your pocket you are talking about, because I KNOW you are not stupid enough to open a giant can of whoop ass by claiming you know what I think." Stop Sylvia Browne

26th May 2006, 04:44 AM	#7
DickK Graduate Poster Join Date: Mar 2003 Location: London Posts: 1,053	Originally Posted by The_Fire Does the bar look like what appears on a television or computer CRT screen when it's video taped? If it does, it will probably have to do with the vertical refresh rate which probably will be called something like vertical DC (don't hang me on it, I'm still researching the specs on your tube). A too slow refresh rate/redraw setting can cause what you describe. I'm desperately trying to download the operating manual from panasonic right now, but my acrobat reader doesn't really like me right now..... Hi, it's not a single bar but many, just like a venetian blind. I appreciate your efforts. I'm at work right now but I'm sure I have the op. manual as a pdf at home. Edited to eliminate wrong gender address
	Last edited by DickK; 26th May 2006 at 04:48 AM.

25th May 2006, 01:33 PM	#3
DickK Graduate Poster Join Date: Mar 2003 Location: London Posts: 1,053	The_Fire, I'm looking at a text file with all the menu options. "Vertical DC" rings a bell but I couldn't say for sure, what a maroon I are. I've googled and can't find a damned thing.

25th May 2006, 10:01 PM	#6
DRBUZZ0 Banned Join Date: Feb 2006 Location: The Command Bunker Posts: 3,320	Originally Posted by DickK Hi, Sorry, not quite sure where to put this question on the forum, but El Greco mentioned s-video in the "Analogue Cables" thread here and it got me thinking. I'm hoping a knowledgeable soul will enlighten me. Back in 2000 I splurged on a Panasonic 36" wide screen, the TX-36PF10. It refreshes at 100Hz and has a very good picture. I use the s-video inputs from both the DVD player and the external digibox. The thing I've never been able to get right is the RGB picture which I can select for inputs on AV2 (IIRC). While the RGB picture is slightly crisper it always displays what looks like faint, slowly scrolling venetian blinds, about 1/2" deep, comprised of alternate light and dark strips. Everything else works as specified. In the time that I've had the TV, I've used it with 2 different DVD players and the effect remains for both. Only my latest digibox has been capable of RGB, and the effect is there also. Does anyone have any idea why this is occurring? I've lived with it so long it doesn't really both me, so I'm as interested in the reason for it as a solution, to be honest. I have scoured the net and the problem seems to be relatively well known. However, the only clue I've come up with for solving this is to use something called a line-doubler, but they looked expensive and didn't guarantee a solution. Once I found a single reference to setting a value accessed via the service menu but could not find an item with exactly the same name so I left all as it was. That's rather vague, so apologies. Any ideas? What is the resolution of the TV? Is it an HDTV? Or is it just regular PAL?

26th May 2006, 04:46 AM	#8
DickK Graduate Poster Join Date: Mar 2003 Location: London Posts: 1,053	Originally Posted by DRBUZZ0 What is the resolution of the TV? Is it an HDTV? Or is it just regular PAL? It's not HD so must be standard res I guess. Remember I bought it back in 2000.

26th May 2006, 12:50 PM	#9
DRBUZZ0 Banned Join Date: Feb 2006 Location: The Command Bunker Posts: 3,320	Okay... I looked it up and found some info. Looks like it is a widescreen standard definition tv. In this case, a line doubler won't do you much good. A line doubler is a type of video processor which scales up the resolution of video beyond standard definition. The term is sometimes used interchangably with deinterlacer, but it is actually something different. These types of processors are what you would use if you have a standard definition source and you want to upconvert it to display it on a high definition or enhanced definition set. Since your set is standard defintion, and the signal is presumably standard definition, it shouldn't make any difference. Couple questions. 1. Did it always do this? 2. Does it do this when connected to any source? 3. Have you checked to make sure that you have the source set to the correct resolution, scan rate ect?

3rd June 2006, 08:14 AM	#10
b33fj3rky Scholar Join Date: Feb 2005 Location: In an ivory tower. Posts: 122	Originally Posted by DickK Hi, The thing I've never been able to get right is the RGB picture which I can select for inputs on AV2 (IIRC). While the RGB picture is slightly crisper it always displays what looks like faint, slowly scrolling venetian blinds, about 1/2" deep, comprised of alternate light and dark strips. Everything else works as specified. Does anyone have any idea why this is occurring? I've lived with it so long it doesn't really both me, so I'm as interested in the reason for it as a solution, to be honest. Any ideas? I've only got one idea, and I swear I'm not saying this as a joke: Copy protection. You think it could be that? Some kind of deliberate munging of the signal... I've had first hand woes with Macrovision copy protection, and I remember hearing vague, angry murmurs about new high-end TV's and built-in copy protection demanded by Hollywood et al.
	__________________ Get saved you sinners!!! www.landoverbaptist.org