G8MNY  > ATV      11.01.18 11:22l 51 Lines 1439 Bytes #999 (0) @ WW
BID : 5400_GB7CIP
Read: GAST
Subj: S-Video pin-out connections
Path: DB0NMS<DB0UHI<DB0ERF<IZ3LSV<I0OJJ<GB7CIP
Sent: 180111/0715Z @:GB7CIP.#32.GBR.EURO #:5400 [Caterham Surrey GBR] $:5400_GB
From: G8MNY@GB7CIP.#32.GBR.EURO
To  : ATV@WW

for the 4 pin miniature din out socket
                ___

             1 o   o 3

            2 o     o 4
                ___

1 - Luminance signal
2 - Luminance ground
3 - Chromanance signal
4 - Chromanance ground

For S Video the normal "Composite" video signal that contains.. frame & line
"Syncs" + the black & white "Luminance" Video + the "Chromanance" colour
signal, is split into 2 components:- Luminance & sync, & a Chromance.

The purpose of having 2 separated signals is to negate the need for filtering
which always comes with some definition loss, & to stop cross colour problems
caused by sharp edges & gratings in the Luminance Jamming the colour signal.
------------------------------------------------------------------------------
From: RZ6AVM@UA6ADV.H.KRD.RUS.EU
Title        : S-Video TV card -- RCA
    ________________________________________>  video
    |                         |
    |                       -----  470pf
    |                       -----
    |                         |
    |                         |
  3 o   4 o___________________I

1 o       2 o_______________________________> GND

                  OR

  3 o   4 o_________________________________>  video
 
1 o       2 o_______________________________>  GND

  1. GND-Y   2. GND-C   3. Y   4. C

73 - EVGENY, RZ6AVM @ UA6ADV


Why Don't U send an interesting bul?

73 De John, G8MNY @ GB7CIP


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