SCART pin guide (aka Peritel or Euro connector)



PinTV SCARTVCR SCART
1 Right audio output (±6dB) Right audio output (±6dB)
2 Right audio input Right audio input
3 Left audio output (±6dB) Left audio output (±6dB)
4 Audio ground Audio ground
5 Blue groundBlue ground
6 Left audio input Left audio input
7 Blue outputBlue input
8 0-2.5 volts (low) when:
- digibox is in standby (or digibox is out of standby & 'Scart control' setting is "OFF')
- VCR is not in playback or onscreen graphics (OSG) mode

4.5-7.5 volts (High-to-6v) when:
- digibox is out of standby,
- 'scart control' setting is 'on',
- picture format setting is '16:9',
- digibox is outputting a 16:9 programme
or when:
- VCR is in playback or OSG mode

9-12 volts (high-to-12v) when:
- digibox is out of standby,
- scart control setting is on,
- picture format setting is '4:3' (or set to '16:9' but digibox is outputting a 4:3 programme)
or when:
- VCR is in playback or OSG mode.0-2.5 volts (low) when:
- VCR is not in playback or OSG mode

4.5-7.5 volts (High-to-6v) when:
- VCR is in 16:9 playback or OSG mode

9-12 volts (high-to-12v) when:
- VCR is in 4:3 playback or OSG mode
9 Green groundGreen ground
10 N/C N/C
11 Green outputGreen input
12 N/C N/C
13 Red ground Red ground
14 N/C N/C
15 Red output Red input
16 0 volt (low) when:- pin 8 of the TV scart is low
or when:
- pin 8 of TV scart is high-to-6v / high-to-12v,
- video output setting is 'PAL'

1-3 volts (high) when:
- pin 8 of TV scart is high-to-6v / high-to-12v,
- video output setting is 'RGB',
- digibox is out of standby
or when:
- pin 8 of TV scart is high-to-6v / high-to-12v,
- VCR is in OSG mode0 volt (low) when:
- pin 8 of VCR scart is low

1-3 volts (high) when:
- pin 8 of VCR scart is high-to-6v or high-to-12v,
- VCR is in OSG mode
17 Composite video output ground Composite video output ground
18 Composite video input ground Composite video input ground
19 Composite video output Composite video output
20 N/C Composite video input
21 Ground Ground


Audio signals0.5V RMS, <1K output impedance, >10K input impedance.
Red, Green, Blue0.7V pk-pk +/- 2dB, 75R input and output impedance.
Note that the Red connection (pin 20) can alternatively carry the S-VHS Chrominance signal, which is 0.3V.
Composite Video /
CSync1V pk-pk including sync, +/- 2dB, 75R input and output impedance.
Bandwidth = 25Hz to 4.8MHz for normal TV
Video de-emphasis to CCIR 405.1 (625-line TV)
Fast Blanking75R input and output impedance.

This control voltage allows devices to over-ride the composite video input with RGB inputs, for example when inserting closed caption text. It is called fast because this can be done at the same speeds as other video signals, which is why it requires the same 75R impedances.

0 to 0.4V: TV is driven by the composite video input signal (pin 19).
Left unconnected, it is pulled to 0V by its 75R termination.

1V to 3V: the TV is driven by the signals Red, Green, Blue and composite sync. The latter is sent to the TV on pin 19.

This signal is useful when using a TV to display the RGB output of devices such as home computers with TV-compatible frame rates. Tying the signal to 5V via 100R forms a potential divider with the 75R termination, holding the signal at around 2V.
Alternatively, if a TTL level (0 to 5V) negative sync pulse is available, this will be high during the display periods, so this can drive the blanking signal via a suitable resistor.
Control Voltage0 to 2V = TV, Normal.
5 to 8V = TV wide screen
9.5 to 12V = AV mode
Comms DataThese signals allow devices to communicate serial data.
Few devices do, so they can be ignored safely.
ShieldThis is the overall shield of the connector case and the cable shield foil.
The control voltages are not well documented, and some are probably reserved for future use. Try to stick to the voltages mentioned here.

What is the context in providing this information? Perhaps a more meaningful title to this thread might be illuminating.

sorry , Updated title :)