Canon D20 - Manual (Page 171)

Using Optional Accessories
171
Turn the camera on.
Press the 1 button to turn the camera on.
X Images from the camera are now displayed
on the TV. (Nothing is displayed on the
camera screen.)
When finished, turn off the camera and TV
before disconnecting the cable.
• Correct display is not possible unless the camera video output format
(NTSC or PAL) matches the TV format. To change the video output
format, press the
n button and choose [Video System] on the
3 tab.
• When the camera and TV are connected, you can also shoot while previewing
shots on the larger screen of the TV. To shoot, follow the same steps as when
using the camera screen.