Cables which run video and audio signals together without a seperating shield around the audio wires may cause an annoying 50 or 60hz buzzing sound in the audio which vaires in volume with the picture content. I've only drawn one ground connection but it may be a good idea make use of other ground connections (if there are any). The reverse applies to the console end of the cable. If you're using mini-coax to connect the RGB video (recommended if the cable is going to be long) then ground pins 5, 9 and 13 provide handy places to solder the shield. This isn't required but it's a good idea to connect to at least two ground pins (usually 17 and 18).

In the diagrams I have drawn all the SCART ground pins connected together. In cases where the TV is a widescreen model or has a widescreen mode feature, applying only 5v to the RGB Status pin may force the TV into 16:9 widescreen mode. If the TV doesn't switch and there is no way to manually force a 'video mode' (such as a button on the remote control) then an external 12V supply may be required. Some games consoles only output 5V which may or may not be adequate. The SCART spec states that to switch to RGB mode the CVBS Status pin must be fed 12V and the RGB Status (aka Fast Blanking) pin be fed 1-3V. Alternatively, if a suitable monitor can't be located and you're good with electronics, then consider building a SCART to arcade monitor adapter. If such a TV can't be found for a reasonable price, then look around for an old RGB computer monitor that is compatible with the TV horizontal scan frequency, such as the commodore 1084 monitor. If you are from a somewhere where TVs with SCART inputs are rare then don't despair, some of the upper market TVs offer RGB input in the form of 4 phono sockets, one for each colour and one for composite sync. Notes TVs with SCART inputs are only common in Europe and Australia (mainly because we share a similar TV standard (thus TV designs) with most of Europe and the TV manufactures just leave the connectors in place). This page contains circuit diagrams to aid anybody wanting build/repair/adapt these cables, as well as pinouts and a short description of the RGB video output (75 ohm driver) circuit. Since only a small fraction of people who own a console use/require a SCART cable it slightly reduces the overall cost. coupling capacitors) of the RGB output circuit inside the SCART cable. The manufacturers have taken full advantage of this and, in what I assume is an effort to save a few cents, often place necessary components (esp. SCART (aka Peritel or Euroconnector) cables for home video game consoles aren't standard, they are different for each console. SCART pinouts and signal info can be found here. Game Console RGB SCART Cable Diagrams Game Console RGB SCART Cable Diagrams For anyone unfamiliar with what RGB video is see this Video Primer.

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