Commodore 1084 analog sync

[KG7PFS]

The Commodore 1084 has a switch to select positive or negative sync for digital RGB, but not for analog. Is the Analog sync positive or negative?

[Daedalus2097]

The 1084 uses composite sync for analogue signals, which is a separately defined signal from the digital sync you get with e.g. VGA and RGBI that has positive (active high) and negative (active low) variations. It doesn't need to be switched as a result.

[nick3092]

You may already know, but analog does need to be TTL sync. Attenuated, like you would find coming out of a SCART cable or possibly other cables, won't work.