Philips AJ3270D-37 - Manual (Page 20)

Set sleep timer
This clock radio can switch to standby mode automatically after a preset
period.
Press SLEEP repeatedly to select the sleep timer period (in minutes).
» When the sleep timer is activated, appears.
To deactivate the sleep timer, press SLEEP repeatedly until [OFF] (off)
appears.
Adjust display brightness
Press BRIGHTNESS repeatedly to select different brightness level: high,
mid, and low.
15 30 60 90 120
off