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From: Jack Gillis on 10 Dec 2009 14:32
I bought a VGA to S-Video Adapter to enable me to connect my laptop's VGA
output to a Projector via the S-Video input on the projector. (The projector
has only the S-video input.) The adapter is a 'y' type device with a
S-Video jack and a composite (RCA) jack.

It doesn't work.

I examined the pin out of the laptop's VGA and the pin in/out's of the
adapter. Pin 2 (Green) of the adapter connected the Chroma pin of the
S-video and pin 3 (Blue) connected to the Luma. This was true for two other
so called adapters.

How can that be expected to produce a signal the projector can use at its
S-video input?

What possible use does this type of so called adapter have?



From: Ken Maltby on 10 Dec 2009 14:47

"Jack Gillis" <XXXXXXXX(a)widomaker.com> wrote in message
news:2sKdnTLo7sgy0bzWnZ2dnUVZ_tGdnZ2d(a)posted.widowmaker...
>I bought a VGA to S-Video Adapter to enable me to connect my laptop's VGA
>output to a Projector via the S-Video input on the projector. (The
>projector has only the S-video input.) The adapter is a 'y' type device
>with a S-Video jack and a composite (RCA) jack.
>
> It doesn't work.
>
> I examined the pin out of the laptop's VGA and the pin in/out's of the
> adapter. Pin 2 (Green) of the adapter connected the Chroma pin of the
> S-video and pin 3 (Blue) connected to the Luma. This was true for two
> other so called adapters.
>
> How can that be expected to produce a signal the projector can use at its
> S-video input?
>
> What possible use does this type of so called adapter have?
>
>

A "VGA to S-Video Adapter" is a Scan Converter not a cable,
UNLESS, the cable is something supplied by the manufacturer
to support a form of "TV Out" for their device. It has to be the
particular cable for that particular device, no other cable will work.

To have any useful reply to your post you would need to include
the Make&Model of each of the "VGA to S-Video Adapter"s
that you bought.

Luck;
Ken



From: Man-wai Chang to The Door (24000bps) on 10 Dec 2009 23:17
> I bought a VGA to S-Video Adapter to enable me to connect my laptop's
> VGA output to a Projector via the S-Video input on the projector. (The
> projector has only the S-video input.) The adapter is a 'y' type device
> with a S-Video jack and a composite (RCA) jack.
> It doesn't work.

You need a VGA card that support that mode of operation, and it's not
easy to find one.

Most modern projectors have D-Sub or RGB in.... How old is that
projector? What other interfaces does it support?

Buy a video converter. It's more expensive though.

--
@~@ Might, Courage, Vision, SINCERITY.
/ v \ Simplicity is Beauty! May the Force and Farce be with you!
/( _ )\ (x86_64 Ubuntu 9.10) Linux 2.6.32
^ ^ 12:13:01 up 5 days 6 min 1 user load average: 1.07 1.29 1.15
不借貸! 不詐騙! 不援交! 不打交! 不打劫! 不自殺! 請考慮綜援 (CSSA):
http://www.swd.gov.hk/tc/index/site_pubsvc/page_socsecu/sub_addressesa
From: Jack Gillis on 11 Dec 2009 06:48
Yes, I now have a converter and is does the job.

Thank you.

"Man-wai Chang to The Door (24000bps)" <toylet.toylet(a)gmail.com> wrote in
message news:hfsh4q$r32$1(a)news.eternal-september.org...
>> I bought a VGA to S-Video Adapter to enable me to connect my laptop's VGA
>> output to a Projector via the S-Video input on the projector. (The
>> projector has only the S-video input.) The adapter is a 'y' type device
>> with a S-Video jack and a composite (RCA) jack.
>> It doesn't work.
>
> You need a VGA card that support that mode of operation, and it's not easy
> to find one.
>
> Most modern projectors have D-Sub or RGB in.... How old is that projector?
> What other interfaces does it support?
>
> Buy a video converter. It's more expensive though.
>
> --
> @~@ Might, Courage, Vision, SINCERITY.
> / v \ Simplicity is Beauty! May the Force and Farce be with you!
> /( _ )\ (x86_64 Ubuntu 9.10) Linux 2.6.32
> ^ ^ 12:13:01 up 5 days 6 min 1 user load average: 1.07 1.29 1.15
> 不借貸! 不詐騙! 不援交! 不打交! 不打劫! 不自殺! 請考慮綜援 (CSSA):
> http://www.swd.gov.hk/tc/index/site_pubsvc/page_socsecu/sub_addressesa

From: Barry Watzman on 11 Dec 2009 11:10
I suspect that you bought a dedicated adapter designed for use only with
some video cards that actually had S-Video signals present at the VGA
connector (which is not standard). A generic adapter of this type would
be very complex and expensive and would not look like a cable .... it
would be an active device and, among other things, would need a power
supply.


Jack Gillis wrote:
> I bought a VGA to S-Video Adapter to enable me to connect my laptop's
> VGA output to a Projector via the S-Video input on the projector. (The
> projector has only the S-video input.) The adapter is a 'y' type device
> with a S-Video jack and a composite (RCA) jack.
>
> It doesn't work.
>
> I examined the pin out of the laptop's VGA and the pin in/out's of the
> adapter. Pin 2 (Green) of the adapter connected the Chroma pin of the
> S-video and pin 3 (Blue) connected to the Luma. This was true for two
> other so called adapters.
>
> How can that be expected to produce a signal the projector can use at
> its S-video input?
>
> What possible use does this type of so called adapter have?
>
>
>
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