61Chapter 4 - Operationswww.adcom.com GTP-870HD Owner’s ManualSystem OperationsThe GTP-870HD includes additional features that en-hance the user experience, including a built-in sleeptimer and front panel display dimmer.Using the Sleep TimerIf you enjoy falling asleep while watching TV or lis-tening to music, you can use the sleep timer to auto-matically power off the GTP-870HD after a set periodof time.To set the sleep timer:1 Press the Sleep button on the remote control.• The first press displays the current status ofthe Sleep timer.• Subsequent presses change the duration ofthe sleep timer from 30~180 minutes.2 When the set time elapses, the GTP-870HD willgo into Standby mode.Note:• To cancel the sleep timer, press the Sleep buttonuntil “Sleep Timer Off” appears.Using the Front Panel Display DimmerThe front panel display has three brightness levelsto suit any need.To adjust the dimmer:1 Press the Dim button on the remote control.• Each press changes the brightness of thefront panel display.• Choose from bright, medium, or low.DimSleep
