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Analog Marty
Joined: 09 Jan 2007
Posts: 129
Location: Melbourne, Australia
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perisoft
Joined: 29 Aug 2007
Posts: 2920
Location: Ithaca, NY
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| Posted: Sun Jun 08, 2008 11:22 am Post subject: |
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My understanding is that the direct view CRT TVs can't even come close to resolving 1920 horizontal - they can handle the vertical resolution but are lucky to resolve 900 pixels horizontally. Unfortunately I can't find any documentation on this, so I could be wrong - but I'm pretty sure that's the case.
That said, they're smaller, so the resolution limitation is probably not apparent in normal viewing.
PS: The first auction is great:
"Toshiba 76cm pure flat screen HDTV with specially designed stand.
Urgent sale, spent 3000k on Television and 700 on stand, taking offers."
3000k, eh? You really got taken for a ride on that one!
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 18114
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Sun Jun 08, 2008 2:21 pm Post subject: |
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Here's what you have to understand about direct view and RP crt tv's. They were not designed for custom resolutions or timings. If you hook up your source directly and send a 16:9 format, 720p or 1080i signal, the picture will look excellent.
If it's sent a 4:3 it will have black bars on the sides. If you stretch it, it will look horrible. Trying a scaler or HTPC is where the problems begin.
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Sun Jun 08, 2008 3:08 pm Post subject: |
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| macgyver655 wrote: | Here's what you have to understand about direct view and RP crt tv's. They were not designed for custom resolutions or timings. If you hook up your source directly and send a 16:9 format, 720p or 1080i signal, the picture will look excellent.
If it's sent a 4:3 it will have black bars on the sides. If you stretch it, it will look horrible. Trying a scaler or HTPC is where the problems begin. |
I run a HTPC into my 42" RCA. I had an overscan issue with it at 1920 x 1080 so I did custom timings for 1080i at 1774x998 ish. I did the coarse, medium and find beam alignment. I can read the desktop from 10 feet away. So I guess you could say, being 7" CRT based, it can 'almost' do 1080i. I've never tried a 1080i source from a STB or anything lilke that for comparison.
It also has a seting in the stretch aspect ratio menu that will take a 4:3 picrture to full screen with better than normal geometry. People look corect.
Wouldn't a scaller be just as good for a set like this? Set it at 1080i dial it in to within a mm and scale every signal to fit?
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HD done right!
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Sun Jun 08, 2008 3:19 pm Post subject: |
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Oh yeah, and Marty see if you can find yourself the Ausie equivilant to a Sony Sony KD-34XBR910,Sony KD-34XBR960 or Sony KD-34XBR970 34" direct view set. They had the best 16:9 direct view CRT picture. Especially the Sony KD-34XBR960 .
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HD done right!
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Sun Jun 08, 2008 3:55 pm Post subject: |
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| AnalogRocks wrote: | | macgyver655 wrote: | Here's what you have to understand about direct view and RP crt tv's. They were not designed for custom resolutions or timings. If you hook up your source directly and send a 16:9 format, 720p or 1080i signal, the picture will look excellent.
If it's sent a 4:3 it will have black bars on the sides. If you stretch it, it will look horrible. Trying a scaler or HTPC is where the problems begin. |
I run a HTPC into my 42" RCA. I had an overscan issue with it at 1920 x 1080 so I did custom timings for 1080i at 1774x998 ish. I did the coarse, medium and find beam alignment. I can read the desktop from 10 feet away. So I guess you could say, being 7" CRT based, it can 'almost' do 1080i. I've never tried a 1080i source from a STB or anything lilke that for comparison.
It also has a seting in the stretch aspect ratio menu that will take a 4:3 picrture to full screen with better than normal geometry. People look corect.
Wouldn't a scaller be just as good for a set like this? Set it at 1080i dial it in to within a mm and scale every signal to fit? |
My response was pretty much pertaining to Perisoft's post on CRT tv's and RPTV's trying to resolve non specific resolutions. There would be no reason a scaler or HTPC couldn't work because they are more then capable of sending native resolutions, but it's when custom resolutions are trying to be sent to a tv that doesn't have the electronics to handle it and therefor produce a poor picture. This is why I said problems begin. If someone is well versed at scaler's or htpc's sure they could be used however I seriousely dought they would produce a better pic unless only to upscale a SD signal. If your source will send a 480p, 720p or 1080i signal at 16:9, you will receive the quality picture the device was made to produce with simplicity to boot.
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Sun Jun 08, 2008 4:04 pm Post subject: |
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Ahhh I should wait till I'm awake and read more carefully ( YAWN ). You are corect sire. You don't want to try and send a consumer RPTV set something like 960P. It just woulnd't like it.
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HD done right!
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Analog Marty
Joined: 09 Jan 2007
Posts: 129
Location: Melbourne, Australia
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| Posted: Mon Jun 09, 2008 9:20 am Post subject: |
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Sorry Kal, my oversight..
Ok, thanks for that, so my understanding is, that if I feed it 720p or 1080i directly (PS3) then I should have no probs and the picture looks...
Better than LCD/Plasma ?
Perisoft - prices in OZ are unbelievable... you could VERY easily spend that kind of money for something half decent (still made in china though..)
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mike calcott
Joined: 18 May 2006
Posts: 307
Location: Australia
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| Posted: Mon Jun 09, 2008 9:33 am Post subject: |
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Hi Anologue Marty, I think your buying in the wrong place, before these models were replaced by plasma and lcd panels, we were clearing them new at Good Guys for around $1200,
I sell in excess of $30k worth of plasma and lcd panels each week and I am constantly asked what people can do with their old crt sets.
Put an ad in the Trading Post "TVwanted" you should be able to pick one up for about $100-$200
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