These boards are fully assembled and ready to go.
These boards are designed to fit inside most common SCART cables and convert composite video to clean sync. Extremely useful when your setup requires csync, but your system only outputs composite-video-as-sync.. Ideal for users of monitors or RGB switches (such as an Extron Crosspoint) that require a clean sync signal, or for XRGB3 users.
These sync in SCART boards are much cheaper and much tidier than buying an external sync cleaner such as a Sync Strike. For full fitting instructions see this page.