Philips 40PFL9904H User Manual page 57

2.1.4 Backlit keys
The keys on the remote control are subtly backlit for ease
of use in the dark.
To switch on the backlighting, slightly push up the slider
or open the slider completely. Also any key press switches
on the backlighting. After a few seconds the backlighting
switches off automatically.
Downloaded From TV-Manual.com Manuals
Switch off the backlighting permanently
To increase battery lifetime, you can switch off the
backlighting.
To switch off the backlighting permanently, press the
Mute m and OK key simultaneously for 4 seconds. The
Standby O key lighting still indicates when remote control
commands are sent to the TV.
To switch the backlighting on again, press the Mute m
and OK key for 4 seconds.