Sony HT-A3000 Help Manual page 29

If you use the optional subwoofer/rear speakers, connect them by following the instructions on the [Checking
Wireless Speaker Connection] screen.
Once [Setup is complete.] appears, select [Learn more].
Note
Depending on the order in which you turn on the TV and the speaker system, the speaker system may be muted and [MUTING]
is displayed on the front panel display of the speaker system. If this happens, turn all devices off, then turn on the speaker system
after turning on the TV.
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