Canon A580 - Manual (Page 144)

142
z The video output signal can be switched (NTSC or PAL) to
accommodate different regional standards
(p. 52) . The
default setting varies between regions.
- NTSC: Japan, U.S.A., Canada, Taiwan and others
- PAL: Europe, Asia (excluding Taiwan), Oceania and others
z If the video system is set incorrectly, the camera output may
not display properly.