Basically you can switch the input source between HDMI and SCART. Then you can switch output resolutions. And finally you can toggle 50/60 Hz mode but this only seems to work in 640x480. Once set to 50Hz mode then you can cycle through resolutions some of which appear to be 50 and other 60 Hz. A bit odd I know, but that is how it is. The only other mode I got to work in 50Hz was 1080p.
HTH
-(e)
So there is a 640x480 output mode? You are not talking about 720p?