video input for pc monitor

sss · 24th September 2004, 03:17 PM

hello guys
i got a 19" pc monitor that i'm not using .is it possible to connect simple rca video signal to the pc monitor somehow?
the monitor got rgb connector right? so how do i convert rca video to this?

ancorp · 24th September 2004, 04:17 PM

get a vga box. I cant tell you where to get one online, because I dont know either, lol. Its like a small box with rca inputs and a vga 15 pin output. Many members here use one. I for one, use a TV tuner card, with Dcaler software, on my PC to display TV on my monitor, and I get very decent results.

sss · 24th September 2004, 04:53 PM

i want to make one myself

i know i can buy one but theres no fun in it

does anybody got any schematics?

ancorp · 24th September 2004, 05:08 PM

lol, well good luck... Its not like a wire adapter, there is processing, i think digital processing involved in the De-Interlacing of the signal, and scaling it. GOOD LUCK! lol

sss · 24th September 2004, 05:39 PM

why theres digital processing ? bought signals are analog....
all i need is to convert rca video to rgb video and i dont know how its done

tryk10 · 25th September 2004, 07:27 PM

Hello, because there are different Horizontal and Vertical signal frequencies then can be used by monitor or LCD

sss · 25th September 2004, 08:53 PM

hello tryk10
what do u mean ?
can be used or cant?

i think i need to separate the video signal to rgb , i think its done with filters or other analog circuitry .. am i right?

ancorp · 25th September 2004, 09:19 PM

Yea, I guess you can run it direct, if you split it to R,G,B, and get the Vertical and Horisontal syncs. Standard TV is around 15Mhz or someting, and progressive scan (480p) is 30... You wouldnt get very decent quality at standard tv, i mean, 720x480 at 60fps interlaced would be pretty crappy still. I hope youre talking about a CRT monitor, and not an LCD one. As far as I know LCD monitors cant pull off interlaced video.
You'd be better off getting a scaler, tv box, or a computer-scaler.
My vote - computer scaler for best quality for the price, or a scaler for quality and simplisity, yet would be pretty pricey for a decent one.

HDTVman · 25th September 2004, 09:44 PM

The short answer no you can't use a PC monitor for TV without a video processor.

The PC monitor is looking for the signals to be in the RGBHV format. That is the (R)ed, (G)reen, (B)lue,(H)orizontal sync,
(V)ertical sync are all sent to the PC monitor on seperate wires. The horizontal rate for PCs is much different than TV and is progressive scan.

TV signals are what is call interlaced composite video. That is the video information is mixed with the color information and decoded by the TV circuits and the Horizontal sweep rate in the US is 15734 hertz.

The PC monitor can't do anything with the TV signals, they need to be converted into signals the PC minotor can use. The TV card that can be used with conputers digitizes the analong video signal and sends it off to the video card in the PC for processing so that the monitor can display the information

later BZ

24th September 2004, 03:17 PM	#1
sss diyAudio Member Join Date: Jul 2003 Location: Israel , haifa	video input for pc monitor hello guys i got a 19" pc monitor that i'm not using .is it possible to connect simple rca video signal to the pc monitor somehow? the monitor got rgb connector right? so how do i convert rca video to this?

25th September 2004, 09:44 PM	#9
HDTVman diyAudio Member Join Date: Aug 2001 Location: Chicago area	The short answer no you can't use a PC monitor for TV without a video processor. The PC monitor is looking for the signals to be in the RGBHV format. That is the (R)ed, (G)reen, (B)lue,(H)orizontal sync, (V)ertical sync are all sent to the PC monitor on seperate wires. The horizontal rate for PCs is much different than TV and is progressive scan. TV signals are what is call interlaced composite video. That is the video information is mixed with the color information and decoded by the TV circuits and the Horizontal sweep rate in the US is 15734 hertz. The PC monitor can't do anything with the TV signals, they need to be converted into signals the PC minotor can use. The TV card that can be used with conputers digitizes the analong video signal and sends it off to the video card in the PC for processing so that the monitor can display the information later BZ __________________ What ever makes the tunes flow

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24th September 2004, 04:17 PM	#2
ancorp diyAudio Member Join Date: Jun 2004 Location: Vaughan, Ontario (near Toronto)	get a vga box. I cant tell you where to get one online, because I dont know either, lol. Its like a small box with rca inputs and a vga 15 pin output. Many members here use one. I for one, use a TV tuner card, with Dcaler software, on my PC to display TV on my monitor, and I get very decent results.

24th September 2004, 04:53 PM	#3
sss diyAudio Member Join Date: Jul 2003 Location: Israel , haifa	i want to make one myself i know i can buy one but theres no fun in it does anybody got any schematics?

24th September 2004, 05:08 PM	#4
ancorp diyAudio Member Join Date: Jun 2004 Location: Vaughan, Ontario (near Toronto)	lol, well good luck... Its not like a wire adapter, there is processing, i think digital processing involved in the De-Interlacing of the signal, and scaling it. GOOD LUCK! lol

24th September 2004, 05:39 PM	#5
sss diyAudio Member Join Date: Jul 2003 Location: Israel , haifa	why theres digital processing ? bought signals are analog.... all i need is to convert rca video to rgb video and i dont know how its done

25th September 2004, 07:27 PM	#6
tryk10 diyAudio Member Join Date: Sep 2004 Location: poland	Hello, because there are different Horizontal and Vertical signal frequencies then can be used by monitor or LCD

25th September 2004, 08:53 PM	#7
sss diyAudio Member Join Date: Jul 2003 Location: Israel , haifa	hello tryk10 what do u mean ? can be used or cant? i think i need to separate the video signal to rgb , i think its done with filters or other analog circuitry .. am i right?

25th September 2004, 09:19 PM	#8
ancorp diyAudio Member Join Date: Jun 2004 Location: Vaughan, Ontario (near Toronto)	Yea, I guess you can run it direct, if you split it to R,G,B, and get the Vertical and Horisontal syncs. Standard TV is around 15Mhz or someting, and progressive scan (480p) is 30... You wouldnt get very decent quality at standard tv, i mean, 720x480 at 60fps interlaced would be pretty crappy still. I hope youre talking about a CRT monitor, and not an LCD one. As far as I know LCD monitors cant pull off interlaced video. You'd be better off getting a scaler, tv box, or a computer-scaler. My vote - computer scaler for best quality for the price, or a scaler for quality and simplisity, yet would be pretty pricey for a decent one.

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