Apple video/composite out pinout

layout schematic diagram

The iMac G5 detects the type of display adapter that is plugged in and programs the graphics IC to route the appropriate video signals to the connector. The signal assignments on the video connector when the composite adapter is attached are shown

14 pin Apple video connector	Composite video and S-video signals can be displayed on either an NTSC display or a PAL display. When a display is connected by way of the composite adapter, the computer detects this configuration and enables the composite and S-video outputs. Pin Signal Description 1 Ground    2 n.c.    3 n.c.    4 Ground    5 S-video C    6 Ground    7 S-video Y    8 +5 volts    9 Composite video    10 DDC data    11 DDC clock    12 Ground    13 Ground (for /Cable Detect)    14 Ground    This information should be correct, but may be not. You can help us to improve this webpage! You can confirm this document to be correct (be careful), or report an error in document (error may be described in the following webpage). Result of your submission will be used for calculating document status shown at the bottom of this page.