Symbol 5637 from IEC 60417 - Title/Meaning: Two component video output Function/description: To identify controls and connecting terminals specifically meant for Y/C separate video output.
Additional information: 
The type of signal may be indicated above the arrow as shown in symbols 5637-1 and 5637-2
Published in: Supplement O, 1996,3C/293/DIS
Own work using: iso.org/obp/graphics/grs/edeea8ef-5854-4ce3-94c2-e366e7a1999c 200.png
Vectorization:  Mrmw