SiriusHardware
Veteran Member
If the lead you buy does not directly use the composite video / composite out from the ST as composite-in for the SCART interface it may instead use components to combine the Hsync and Csync outputs which are present on all variants of the ST, as the official Atari colour and Hi-Res Mono monitors both used separate syncs. If it does this it probably will not have any connection to the Composite video out / Composite sync out pin on the Atari.
I do remember a case on an Atari Forum where someone was trying very hard to use Composite video / Composite sync out as part of a SCART cable only to discover that the Composite Sync components were not fitted either, but I think that was unusual.
To be honest if any machine has the capability to output RGB to a monitor you should not hesitate to use it, RGB output is always cleaner and crisper than composite, where the various signal components are combined in one signal line, travel a metre or two along a wire and then are uncombined again. Better not to combine them in the first place, but to send them all along separate wires.
I do remember a case on an Atari Forum where someone was trying very hard to use Composite video / Composite sync out as part of a SCART cable only to discover that the Composite Sync components were not fitted either, but I think that was unusual.
To be honest if any machine has the capability to output RGB to a monitor you should not hesitate to use it, RGB output is always cleaner and crisper than composite, where the various signal components are combined in one signal line, travel a metre or two along a wire and then are uncombined again. Better not to combine them in the first place, but to send them all along separate wires.