|3||Y||S-Video Luminance (Y)|
|4||C||S-Video Chrominance (C) / Pb|
|5||(sens)||Wire to Gnd to enable pin 7 S/PDIF (Inspirion, M90, XPS)|
|6||VIDEO||Composite Video / Pr|
|7||GND||S/PDIF Data (when enabled)|
Pins 1, 2, and the shell are shorted together. It's worth noting that the assignments of pins 1-4 correspond directly to those of S-video. This pinout comes from a dell adapter labeled 044CTV (confirmed to work with a Dell Inspiron 7500), tested using a multimeter.
On the following Dell models, pin 7 will output S/PDIF when pin 5 is shorted to Gnd :-
Inspiron (6400, 640m, 9400, E1405, E1505, E1705, XPS M1710), Precision WorkStation M90 and XPS (M1210, M1710 M1730).
On the D/DOCK, the S/PDIF is permanently enabled at the RCA socket (and not output on the DIN socket pin 7)
Pins 3, 4, 6 are used for HD TV in YPbPr mode, tested on a Inspiron 1720 in full HD.
reverse 4 and 6 for component video