The Peritel SCART Connector
The Peritel connector, or SCART connector as it is more commonly known, is an industry standard means of connecting a variety of audio-visual equipment together.
The connection consists of a 21 way female
socket ( pin 21 being the metal shield of the connector ) that is fitted to
most video cassette recorders ( VCR's ) and television sets these days. The
pin numbering of the socket is shown below ...

The Peritel SCART connector provides for bi-directional
connection of audio and composite video signals, uni-directional RGB video and a number of
control signals that allow the television to control a VCR and vice-versa.
Two pieces of audio-visual equipment may be connected to each
other using a single Peritel SCART connecting cable which has male plugs fitted at each
end.
Connections required to link VCR to VCR, VCR to television
and VCR or television to a Hi-Fi unit are described later on this page.
The Peritel SCART Connector Signals
Pin |
Name |
Description |
1 |
AOR |
Audio Out Right |
2 |
AIR |
Audio In Right |
3 |
AOL |
Audio Out Left + Mono |
4 |
AGND |
Audio Ground |
5 |
BGND |
RGB Blue Ground |
6 |
AIL |
Audio In Left + Mono |
7 |
B |
RGB Blue |
8 |
SWTCH |
Audio / RGB switch / 16:9 |
9 |
GGND |
RGB Green Ground |
10 |
CLKOUT |
Clock Out |
11 |
G |
RGB Green |
12 |
DATA |
Data Out |
13 |
RGND |
RGB Red Ground |
14 |
DATAGND |
Data Ground |
15 |
R |
RGB Red / Chrominance |
16 |
BLNK |
Blanking Signal |
17 |
VGND |
Composite Video Ground |
18 |
BLNKGND |
Blanking Signal Ground |
19 |
VOUT |
Composite Video Out |
20 |
VIN |
Composite Video In / Luminance |
21 * |
SHIELD |
Ground / Shield ( Chassis ) |
* Note that
pin 21 is actually the metal housing of the Peritel SCART connector
The VCR to VCR / VCR to
Television Connecting Cable
To connect a Video Cassette Recorder to
another Video Cassette Recorder or a Television using composite video; two Peritel SCART
plugs ( male ) should be wired one-to-one with the exception of the
following pins which are crossed-over, from socket to socket , between one end and the
other ...
1 to 2
2 to 1
3 to 6
6 to 3
19 to 20
20 to 19
Pins 1, 2, 3 and 6 ( Audio )
should be connected using a 4-core shielded cable with the shield connected to pin 4 at
each end.
Pins 19 and 20 ( Video )
should be connected using 2-core shielded cable with the shield connected to pin 17 at
each end.
Pins 7, 11 and 15 ( RGB
Video ) should be connected using shielded cable with each shield connected to pins
5, 9 and 13 respectively.
Because audio and video signals are
sensitive to distortion and interference it is necessary to use suitable cable for all
connections to avoid cross-talk and other problems.
Given the difficulties in obtaining
suitable cable, and the risk of interference which may cause degradation of picture and
sound quality; it is recommended that a commercial connecting cable is purchased from a
local store. These cables are not generally more expensive than home constructed ones and
such a purchase will avoid all the difficulties of attempting to solder some 42
connections in, what will turn out to be, very tight connectors.
The VCR to Hi-Fi / Television
to Hi-Fi Connecting Cable
Only three pins are needed take stereo
audio from a video cassette recorder or television to a Hi-Fi unit using the Peritel SCART
connector ...
Pin 1 - Right Audio Out
Pin 3 - Left Audio Out / Mono
Audio Out
Pin 4 - Audio Ground
The connection should be made using either
one, two-core shielded cable or two, single core shielded cables. The decision on which to
use will normally depend on the input connection required to the Hi-Fi unit; 3 or 5-pin
DIN ( one, two core cable ) or phono jacks ( two, one-core
cables ).
The left audio line should be connected to
pin 3 and the right audio line should be connected to pin 1. The shield of each cable
should be connected to pin 4.
If the video recorder or television
provides a monophonic output only; then a connection need only be made to pin 3 although
the output may also be present on pin 1 on some equipment.
Because audio signals are sensitive to
distortion and interference it is necessary to use suitable cable for all connections to
avoid cross-talk and other problems.
If there is interference on the sound
channels, such as mains hum; it may be necessary to leave the shields unconnected at the
Hi-Fi inputs or leave the shield connections to pin 4 at the Peritel SCART connector
off ( separating the two cable shields at that point ). Some
experimentation may be necessary to remove any interference.