MiniDIN4 Connector
MiniDIN4 connector
(PC bracket viewed from outside)
In the factory setting called DIN4, LUMA and CHROMA are the luma and chroma inputs for a video composite color signal with the S-Video format.
In the setting named DB9, the CHROMA input is not used and the LUMA input can receive a color or monochrome composite signal.
LUMA is connected to VIDEO2 on the DB9 connector. LUMA is terminated with a removable 75Ω resistor.