Philips 40B1U5600 User Manual page 26

it will automatically turn ON if
monitor is returned to its default
Landscape position.
Note
A manually selected PowerSensor
mode will remain operational unless
and until it is readjusted or the default
mode is recalled. If you find that the
PowerSensor is excessively sensitive to
nearby motion for some reason, please
adjust to a lower signal strength. Keep
sensor lens clean, if the sensor lens
is dirty, wipe it with alcohol to avoid
reducing of distance detection .
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