Symbol 5636 from IEC 60417 - Title/Meaning: Two component video input Function/description: To identify controls and connecting terminals specifically meant for Y/C separate video input.
Additional information: 
The type of signal may be indicated above the arrow as shown in symbols 5636-1 and 5636-2
Published in: Supplement O, 1996,3C/293/DIS
Own work using: iso.org/obp/graphics/grs/3e43fa57-8f73-47cf-95c7-ae88568497b7 200.png
Vectorization:  Mrmw