Symbol 5632 from IEC 60417 - Title/Meaning: Three component video input/output Function/description: To identify controls and connecting terminals specifically meant for three component video input/output.
Additional information: 
The type of signal may be indicated above the arrow as shown in symbols 5632-1 and 5632-2
Published in: Supplement O, 1996,3C/293/DIS
Own work using: iso.org/obp/graphics/grs/7cc1b991-6772-436b-a9ba-13ce870e51a1 200.png
Vectorization:  Mrmw