Vizio S3821w-C0 - Quickstart Guide - Manual (Page 4)

CONTROLS & CONNECTIONS
Back of Sound Bar
Power Port
USB (6)
USB In
OPTICAL (4)
Digital Optical Audio In
DIGITAL (3)
Coaxial In AUX (1)
Analog Audio In
AUX (2)
Analog Audio In
Service Port
Pairing
Button