Philips HF3510 User Manual page 12

Demonstration mode
If you want a quick demonstration (90 seconds) of the gradually increasing light intensity and sound
level, switch on the test function of the appliance.
1. Press and hold the alarm button for at least 3 seconds.
2. The appliance starts the demonstration of the alarm.
3. To switch off the demonstration, press and hold the previously pressed alarm button for
3 seconds again.
1 2
> 3 sec.
90 sec.
Audio feedback
When you press a menu button, you hear a click. If you do not want to hear clicks when you press
a button, press and hold the FM button for 5 seconds to switch off the audio feedback. You hear
one click as a confirmation. To activate, press and hold the FM button again. You hear two clicks to
confirm that the audio feedback is activated.
Button backlight
The menu buttons have a backlight to help you to find the buttons. If you move your fingers close to
the buttons, the backlight lights up. If you don't press the button, the backlight goes out after a few
seconds.
22
3
> 3 sec.