Philips HF3654 Manual page 11

Time
Audio feedback
Display
You can change the time and switch between 12 hour (AM/PM) and a 24
hour clock by clicking on the toggle button (12/24).
When you press any menu button, you hear a click. If you do not want to
hear clicks when you press a button, press this button to switch off the
audio feedback. You hear one click as a confirmation. To activate, press this
button again. You hear two clicks to confirm that the audio feedback is
activated.
Display brightness
You can adjust the display contrast from level 1 to level 6. Choose a level
that is optimal for you to see the display at night. The Sleep & Wake-Up
Light automatically adjust the contrast level when the light in your bedroom
becomes brighter.
Display on/off
You can switch off the display completely by pressing the display button, in
case you do not want any light - including time indication - coming from the
Sleep & Wake-Up Light.
Normally, if you do not touch the display for some time in any menu, the
display reverts to time and status indication only. When the display is off, no
time indication is shown.
Press the crossed-out icon to turn on the display again.
Tip: If you want to check the time or select a function while the display is off,
just place your hand near the display and it turns on for a few seconds.
English
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