Sony HT-A3000 Help Manual page 86

[On]: Normally select this. The speaker system automatically selects the better channel for transmission. This is the
stronger mode against wireless interference.
[Off]: The speaker system selects a channel from the limited frequency band to prevent external wireless
interference. If sound dropping occurs while [On] is selected, it may be improved by selecting [Off].
[Wireless Playback Quality]
You can set the wireless playback quality of the optional subwoofer and rear speakers.
[Sound Quality]: The sound quality takes priority over the connection status of the wireless connection.
[Connection]: The connection status takes priority over the sound quality.
[Software Version]
You can check the software version of the optional subwoofer and rear speakers.
Note
[RF Channel], [Wireless Playback Quality], and [Software Version] become selectable only when the optional subwoofer and rear
speakers are connected to the speaker system.
[RF Channel] is not available in some countries/regions.
[TV Center Speaker Settings]
If you connect the speaker system and TV with the HDMI cable (supplied) and the TV center speaker mode cable
(supplied), you can output the center speaker portion of the speaker system sound from the TV. Set [Control for HDMI] to
[On].
[TV Center Speaker Mode]
[On]: Uses a TV compatible with this feature as the center speaker.
[Off]: Off
[TV Position Setting]
Follow the on-screen instructions to set up the speaker system positioning in relation to the TV so that the height at
which the audio (e.g. dialog) can be heard is set to suit the height of the TV.
Note
Depending on the audio content, sound may not be output from the TV.
When the surround effect is set to [Sound Field: Effect On] by pressing SOUND FIELD on the remote control, sound is not output
from the TV.
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