Sierra Wireless HT-TXQ120 - Manual (Page 31)

ENG
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Convenient Functions
You can set the time that the Home Theater will shut itself off.
Press the SLEEP button.
Each time the button is pressed, the preset time changes as follows :
10 ➝ 20➝ 30➝ 60➝ 90➝ 120➝ 150➝ OFF.
To confirm the sleep timer setting, press the SLEEP button.
The remaining time before the Home Theater will shut itself off is displayed.
Pressing the button again changes the sleep time from what you have set earlier.
To cancel the sleep timer, press the SLEEP button until appears on
the display.
Sleep Timer Function
You can adjust the brightness of the display on the main unit so it won't interfere with your movie viewing.
Press the DIMMER button.
Each time the button is pressed, the brightness of front display will be adjusted.
Adjusting Display Brightness