LG S90TY Owner's Manual page 13

Turning surround sound on/off
a Press Settings
b While the LED2 is blinking, press Left/Right button to choose the surround sound setting.
c While the LED2 is blinking, press Up/Down button. If the surround sound setting is on, LED1 blinks
white. If the surround setting is off, LED3 blinks white.
button. LED2 blinks white.
1
2
3
1
2
3
1
2
3
(On)
1
2
3
(Off)
13