Yamaha TRUE X BAR 50A User Manual page 59

ADDITIONAL FEATURES > Showing the type of audio signal and settings for functions
g
Connection of a surround speaker (left)
Glows white: connected
Off: not connected
h
Connection of a surround speaker (right)
Glows white: connected
Off: not connected
NOTE
If only one wireless speaker is registered, the Wi-Fi indicator glows white and the UPDATE indicator glows green when it is connected.
When the wireless speaker is not connected, both the Wi-Fi and UPDATE indicators are off.
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