HDTVoice.com - High-Definition Television Talk

12-31-2002, 03:07 PM	#1
laveller Reged User Tier 2 Join Date: Dec 2002 Posts: 65	DVI HDTV, love it! Just hooked up a Samgs. ST160 to a new Sony hs10 hdtv lcd projector...using the DVI for terristerial hdtv, sat base hdtv, and general DTV, component video for DVD's and s-video for my old LD...let me tell ya, with a true hdtv signal (native 720p or 1080i) via dvi, the picture (with a 12 ft diagnol 16:9 screen) is unbelievable. Watched the sound of music on sunday night from abc, 720p feed! just outstanding! Unreal resolution and color for a screen that size. FYI.

12-31-2002, 03:49 PM	#2
57U Runner/Cyclist/X-C Skier Join Date: May 2002 Location: Toronto Posts: 17,068	Laveller, thanks for the feedback and welcome to the forum. You may wish to change your Laserdisk player connection to composite video cable. That will let the signal go through the TV's comb filter, since LD signals are "stored on disk" as "composite" signals. You may not notice any difference, but I thought I'd mention it, especially since it's sometimes a "cheaper" solution for a "better" picture. __________________ 57U - Toronto, Rogers Cable, SA8300HD, 500GB HDD & Hitachi 61UWX10B HDTV, Yamaha RX-V1 A/V Receiver, Martin Logan Speakers. Photos --> 57U's HT SA8300HD, 250GB HDD & KDL40W3000 (Upstairs) Please don't PM me with questions that can (and should) be asked in the forum, thanks. Personal Question? Fire away. Last edited by 57U : 12-31-2002 at 03:51 PM.

01-02-2003, 12:54 PM	#3
laveller Reged User Tier 2 Join Date: Dec 2002 Posts: 65	regarding the comb filter... 57, that's an interesting idea...Do LCD projectors have comb filters (I have to admit that I don't know what a comb filter does!) the picture quality of my system varies wildly depending upon the input...480i input from cable or OTA standard broadcast produces a picture that is mediocre at best, satalite DTV, also native 480i is a little better, the LD via s-video in better still (I haven't tried the LD via composite yet), progressive DVD ranges from good to outstanding depending on the quality of the DVD conversion (TORA TORA TORA is an excellent video transfer) and OTA hdtv (I can only get an ABC feed at this point) is absolutly outstanding. Pioneer DV-45a, Pioneer CLD-505, Yamaha RX-V1300, Onkyo power for Design Acoutics Sub, AR speakers, Sony HS10, Samsung TS160, misc other stuff...

01-02-2003, 05:20 PM	#4
57U Runner/Cyclist/X-C Skier Join Date: May 2002 Location: Toronto Posts: 17,068	I believe that all TVs that have composite inputs have comb filters (even non-HD). The quality of the filter varies with the quality of the TV. You may wish to check the specs of your LCD projector to see if there's any mention of comb filters/type, etc. __________________ 57U - Toronto, Rogers Cable, SA8300HD, 500GB HDD & Hitachi 61UWX10B HDTV, Yamaha RX-V1 A/V Receiver, Martin Logan Speakers. Photos --> 57U's HT SA8300HD, 250GB HDD & KDL40W3000 (Upstairs) Please don't PM me with questions that can (and should) be asked in the forum, thanks. Personal Question? Fire away.

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01-19-2003, 11:33 AM	#5
310 HDTVoice Member Join Date: Jan 2003 Posts: 1	DVI DO guys know if there is such an adapter that will transform from RGA to DVI connectors? I currently have the RCA dtc 100 that uses the RGA/15pin connector, but would like to utilize my DVI adapter on the back of my Sony 57 tv.. Any thoughts, thanks -310

03-01-2003, 09:17 AM	#6
Trick414 HDTVoice Member Join Date: Sep 2002 Location: FW, TX Posts: 24	310, I can't answer your question, but do have some information. I have an MSI GeForce 4 ti4200 video card in my PC. Dual outputs: standard RGB and a DVI. It came with an adaptor for the DVI. It changes DVI --> RGB. When you say RGA, do you mean the RCA brand that uses an RGB connector? In any case, my point is that I would think there would be an adaptor out there, as it is possible to go DVI --> RGB, at least as far as a computer monitor. From what I can tell, digital is digital. Good luck. --Trick414

03-10-2003, 11:59 AM	#7
FullBandwidth Reged User Tier 2 Join Date: Dec 2002 Location: Virginia USA Posts: 216	RGB is still analog, is it not?

03-11-2003, 01:12 AM	#8
Trick414 HDTVoice Member Join Date: Sep 2002 Location: FW, TX Posts: 24	Darn, now you got me thinking... I could be way off base here, but I'm not sure that RGB/VGA (whatever) IS analog. I would think the video card is outputting a digital signal, regardless of the format. The adaptor is a very simple price of plastic. I can almost assure you there isn't any "processing" going on in the adaptor. I can only assume then that the signal coming out of the video card is already digital. I've been lurking around AVS forum and it seems like the signal is the same, just a different pinout. Someone more knowledgeable can jump in anytime! --Trick

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03-11-2003, 07:52 AM	#9
Jester Reged User Tier 2 Join Date: Jan 2003 Location: Detroit, MI Posts: 120	The 15 pin RGB connecter is analog, meaning that the color signal is passed as a variable voltage to the display's circuitry. DVI is (usually) a digital signal, meaning that the color information is encoded as binary signals sent at a specific frequency. The DVI connector has extra pins that can carry an analog signal, but I would guess that your video card senses the RGB conversion adapter and changes its signal to analog. This can be accomplished a number of ways without requiring the adapter to have intelligence. __________________ Hitachi 57SWX20B Sanyo PLV-Z2 Projector Comcast Dual Tuner DVR

03-11-2003, 11:18 AM	#10
Trick414 HDTVoice Member Join Date: Sep 2002 Location: FW, TX Posts: 24	Heh, I knew I didn't know anything! Ok, so would it be possible then to go from RGB to DVI? --Trick

03-11-2003, 11:47 AM	#11
Jester Reged User Tier 2 Join Date: Jan 2003 Location: Detroit, MI Posts: 120	Yes, but you need a scan converter, and they are not yet very cheap. Focus makes a couple of units that are targeted at home theatre. You can find them here: http://www.focusinfo.com/products/c...centerstage.htm __________________ Hitachi 57SWX20B Sanyo PLV-Z2 Projector Comcast Dual Tuner DVR

03-20-2003, 10:49 PM

#12

FullBandwidth

Reged User Tier 2

Join Date: Dec 2002

Location: Virginia USA

Posts: 216 FullBandwidth is on a distinguished road

Quote:

Originally posted by Jester
http://www.focusinfo.com/products/c...centerstage.htm

I had to LOL about this from their page:

Quote:

High-bandwidth Digital Content Protection (HDCP) is a content protection scheme optionally used with DVI to prevent unauthorized copying and redistribution of digitally perfect content.

I guess we have nothing to worry about then, I contend there's no such thing as "perfect" content!

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05-09-2003, 06:34 PM	#13
Johnwa HDTVoice Member Join Date: Dec 2002 Location: Bremerton Washington Posts: 32	buyer beware just make sure before you buy that the DVI they are using is meant for TV's and not p.c.'s. there are a few switchers that are meant for front projectors that have the computer type DVI and sometimes it's a little difficult to discern which one they mean sometimes.DVI with HDCP is only for TV use so if it says that you're probably safe. __________________ Toshiba 65hdx82 Pioneer dv-47a dvd-a/sacd player Harmon-Kardon avr 510 thiel cs 1.5 MITerminator 2 cables

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