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April 2nd, 2009 07:00

How to connect laptop's vga to TV's s-video?

Hi,

 

I have a Dell Inspiron 1525 laptop which only has VGA output (no s-video). On the back of my TV, there is only S-Video input and some RCA input/outputs.

 

I would like to connect the laptop to the TV so I can watch movies on the big screen.

 

So I bought the following:

 

1)  S-Video to VGA/RCA cable which looks like this:

http://www.gainbery.com/Product/Adaptor/vga%20to%20rca.jpg

 

 

2) S-video cable which looks like this:
http://tomcom.ca/catalog/images/S-video.jpg

 

 

3) RCA sound cable which looks like this: http://www.logicsupply.com/images/photos/cables/RCAAudio_big.jpg

 

 

What I did was

-          I connected the VGA end of the first cable to the VGA output of the laptop.

-          Then connected the S-video cable (second cable) to the S-video end of the first cable.

-          Finally I connected the second cable to the S-video input of my TV.

-          Connected the single end of the third cable to the laptop’s sound output.

-          Connected the two other ends of the third cable to the audio inputs of my tv

 

The sound worked but the video didn’t. I hit Fn+F8 but nothing appeared on the TV.

 

Please help me with this, let me know if I did everything correct and if I need anything else to get this to work.

 

Thanks

3 Posts

April 2nd, 2009 10:00

1.  Are you running Vista or XP?

2.  Check the resolution to the second display.

3.  Did you  configure the display?

13 Posts

April 2nd, 2009 12:00

1. XP

2. I haven't changed any display configuration, I wasn't getting anything on the tv...

 

3 Posts

April 2nd, 2009 13:00

Display config is accessible from your laptop display.  Right click on desktop, properties, settings.  Should see display 1 and display 2.  Left click on 2.  You can then use as primary monitor or extend your desktop to it.  Pick and apply.  Set the resolution for the second monitor (TV)

13 Posts

April 3rd, 2009 06:00

Thanks, ok, I tried that and the second display wasn't even there... I mean the laptop makes some connecting noise which means it detects the second display but no picture will be displayed on the TV... Please review my initial post and let me know if I did everything correctly.

Thanks

4 Operator

 • 

11.1K Posts

April 3rd, 2009 08:00

Ranger2050 is right. It isn't as simple as buying cables and adapters, it requires electronics to do the video signal conversion.

Also, for the sound, you will need what people called a iPod cable which is a mini-plug to two RCA plugs. This you can buy at Radio Shack, Best Buy, etc.

3 Posts

April 3rd, 2009 08:00

ok, I just looked up the vga to s-video connector you have.  That requires a graphics card that can do tv-out (which yours probably does not).  My wife DJ's karaoke and had the s-video go out in her laptop.  To solve that problem I purchased a pc vga to s-video converter.   http://www.hdtvsupply.com/vga-to-component.html  Without going into boring detail, you are changing the output video signal from on format to another.  Just a different ended cable is not going to do that without the converter.  Maybe this can explain:

S-VIDEO

Short for Super-Video, a technology for transmitting video signals over a cable by dividing the video information into two separate signals: one for color (chrominance), and the other for brightness (luminance). When sent to a television, this produces sharper images than composite video , where the video information is transmitted as a single signal over one wire. This is because televisions are designed to display separate Luminance (Y) and Chrominance (C) signals. (The terms Y/C video and S-Video are the same.)

Computer monitors, on the other hand, are designed for RGB signals. Most digital video devices, such as digital cameras and game

machines, produce video in RGB format. The images look best, therefore, when output on a computer monitor. When output on a television, however, they look better in S-Video format than in composite format.

To use S-Video, the device sending the signals must support S-Video output and the device receiving the signals must have an S-Video input jack. Then you need a special S-Video cable to connect the two devices.

Hope this helps.

 

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