Sony HT-A9 Help Manual page 5

Sound
No sound is output from the speaker system.
The speaker system cannot connect to a TV with the BLUETOOTH function.
No TV sound is output from the speaker system.
The sound skips or noise is generated.
Picture and sound of the device that is connected to the speaker system are not output from the TV when the speaker system is
not turned on.
The sound is output from both the speaker system and TV.
The sound is interrupted while watching a TV program or content on a Blu-ray Disc, etc.
The TV sound from this speaker system lags behind the image.
No sound or only a very low-level sound of the device connected to the speaker system is heard.
The surround effect cannot be obtained.
No sound is output from the optional subwoofer.
Sound is not output from some speakers.
Sound Field Optimization
Sound Field Optimization is failed.
Mobile Device Connection
Pairing cannot be achieved.
BLUETOOTH connection cannot be completed.
Sound of the connected BLUETOOTH mobile device is not output from the speaker system.
Headphones Connection with the BLUETOOTH Function
Pairing cannot be achieved.
BLUETOOTH connection cannot be completed.
No sound is output from the connected BLUETOOTH headphones.
The BLUETOOTH connection with the headphones becomes disconnected.
Wireless LAN Connection
The speaker system cannot connect to the network or the network connection is unstable.
The wireless LAN router you want is not shown in the wireless network list.
Internet Connection
You cannot connect the speaker system to the Internet.
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