Vizio S2120w-E0D - Quickstart Guide - Manual (Page 5)

3
Power Port
Service/USB Port
Service Port/USB In
OPTICAL (4)
Digital Optical Audio In
DIGITAL (3)
Coaxial In
AUX (1)
Analog Audio In
AUX (2)
Analog Audio In
Back of Sound Stand
SUB OUT
SUB OUT
SUB OUT
Subwoofer Out