Hongqi HS7 Manual page 217

■ Synchronize the rear entertainment screens (with the rear left entertainment
screen as an example)
In. the. upper. part. of. the. rear. entertainment. screen,. pull. down. the. shortcut. setting.
interface to set the speaker, volume and screen brightness, and synchronize the
screen.
. S ynchronize.the.center.screen.(front.entertainment.screen)
When it is selected, the video played on the front entertainment screen will be
synchronized.
When.it.is.not.selected,.a.gray.image.will.be.displayed.
. S ynchronize.the.rear.right.screen.(rear.right.entertainment.screen)
If. it. is. selected,. the. video. played. on. the. rear. right. entertainment. screen. will. be.
synchronized.
When.it.is.not.selected,.a.gray.image.will.be.displayed.
Speaker
When the rear speaker switch is turned on from the front entertainment screen, the
system.speaker.occupied.by.the.current.entertainment.screen.can.be.selected.
Muting
It.can.be.used.to.mute.and.unmute.the.current.entertainment.screen.
Speaker
When the system speaker is occupied, the system speaker volume can be adjusted;
when the system speaker is not occupied, the headphone volume on the current
entertainment.screen.can.be.adjusted.
. B rightness
It.can.be.used.to.adjust.the.brightness.of.the.current.entertainment.screen.
5-1..Basic.Operations
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