Feelworld FPV-101A - Manual (Page 16)

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● AV2（aerial using）state：
※ Reset: Recover the analog value to original factory state
※ System Color video format selection
※ Display ratio: Screen display ratio selection 16:9/4:3
（ Sound）
Press “MENU” enter into OSD menu, use “ ► ” or“ ◀” button to select
“Sound” , after selection press “MENU” button to confirm, use “ ► ” or“ ◀”
button to select submenu item, after selection press “MENU” to confirm, then
use “ ►
” or “ ◀” button to adjust the volume. After setting press “MENU” .
Press “MENU” button to exit OSD menu.
※ Volume: To adjust the sound .