Yamaha YAS-209 Guide De Démarrage Rapide page 13

Subwoofer
a
a Bass reflex port
b PAIRING button
Use to pair the center unit with the subwoofer manually.
c STANDBY indicator
Shows subwoofer's status.
Front panel
d * indicator
e Power connector
Rear panel
Glows when the center unit and subwoofer are connected
wirelessly.
Connect the power cord (p.15).
b c d
e
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