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[OpenBCM Lugano JN46LA]

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G8MNY  > ATV      20.01.24 10:00z 62 Lines 2571 Bytes #132 (0) @ WW
BID : 65053_GB7CIP
Read: GUEST
Subj: SCART Video Connections
Path: HB9ON<IW8PGT<LU4ECL<GB7CIP
Sent: 240120/0952Z @:GB7CIP.#32.GBR.EURO #:65053 [Caterham Surrey GBR]
From: G8MNY@GB7CIP.#32.GBR.EURO
To  : ATV@WW

(8 Bit ASCII graphics use code page 437 or 850, Terminal Font)

Not all pins have to be connected. There are different standards....

Type U (universal) - provides connections to all 21 pins.

Type V (video) - provides all connections excluding audio pins (3,1,6,2&4).

Type C ( composite video & audio ) - provides all connections excluding
       RGB Video & Blanking pins (15,13,11,9,7,5,16&18).

Type A (audio) - provides all connections excluding Video pins
                 (19,20,17,15,13,11,9,7,5,16&18)
       ________________________________
SOCKET \ 20 18 16 14 12 10  8  6  4  2 ³
 VIEW 21³ 19 17 15 13 11  9  7  5  3  1³
        ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

Pin  Name     Description            Size of Signal          Impedance
 1   AOR      Audio Out Right          0.5V RMS                 <1kê
 2   AIR      Audio In Right           0.5V RMS                 >10kê
 3   AOL      Audio Out Left + Mono    0.5V RMS                 <1kê
 4   AGND     Audio Ground
 5   BGND     RGB Blue Ground
 6   AIL      Audio In Left + Mono     0.5V RMS                 >10kê
 7   B        RGB Blue In              0.7V Pk                    75ê
 8   SWTCH    Audio/RGB switch/16:9  0-2V TV / 5-8V AV 4:3 / 9.5-12V AV 16:9
 9   G GND    RGB Green Ground
10   CLKOUT   Data 2: Clockpulse Out          (Unavailable ??)
11   G        RGB Green In             0.7V Pk                    75ê
12   DATA     Data 1: Data Out        (Unavailable ??)
13   R GND    RGB Red Ground
14   DATAGND  Data Ground
15   R        RGB Red In/Chrominance   0.7V pk 0.3V burst         75ê
16   BLNK     Blanking/Comp-RGB        1-3V RGB, 0-0.4V Composite 75ê
17   VGND     Composite Video Ground
18   BLNKGND  Blanking Signal Ground
19   VOUT     Composite Video Out / Lum Y  1V Pk                  75ê
20   VIN      Composite In / Lum Y         1V Pk                  75ê
21   SHIELD   Ground/Shield (Chassis)

Cables with 1 overall screen only usable @ 50cm MAX length & will suffer some
crosstalk.
Some cables have 30ê lapped screened AF cable for video & give colour problems
as the screen is quite in inductive at 4.3MHz, proper full mesh crossed braided
screens should be used for all 75ê signal cables.
             
"S" input 15+20, crosstalk @ 4.43MHz in log cables causes fine patterning!

WARNING
Some VCRs (expensive JVCs) blow internal pcb fuse if the SWITCH tally wire is
shorted to ground! So watch those floating around bare screens inside the SCART
plug! 


Why Don't U send an interesting bul?

73 De John, G8MNY @ GB7CIP


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