ARCHOS AV420 - Manual (Page 65)

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Parameter Description
Power Off 1-9 minutes. The number of minutes of user inactivity (no
buttons pressed) before the AV400 shuts off. During the
playback of music or video files, this setting takes effect only
after the files are finished playing.
Backlight Off 10-90 seconds, Never. The time of user inactivity (no
buttons pressed) before the AV400 turns off the screen
to conserve power. During the playback of video files, this
setting only takes effect once the file is finished playing.
Hard disk 10-90 seconds. The number of seconds from the time of
the last file access before the AV400 tells the internal hard
disk to stop spinning. The longer this time is set, the more
often the hard disk is turning and the quicker the response
time when accessing files. However, as it is set longer, it will
quickly consume your battery. Caution: This setting should
only be changed by experienced users.
Standby 1-9 minutes, Never. The number of minutes of user
inactivity (no buttons pressed) before the AV400 goes into
Standby mode. When powered by the AC charger/adapter
(or connected to a powered TV Cradle), the AV400 will not
completely shut off. It will go into Standby mode. This way, it
can wake up to make a scheduled video recording.
A typical use of these settings is to set the power off, screen off, and hard
disk to low values when used in battery mode. When the power adapter
is plugged in, you do not need to conserve energy and thus keeping the
Power on and the Backlight on makes using the AV400 more agreeable.
Increasing the hard disk value beyond the default may actually discharge
the battery even when the Charger/adapter is plugged in. Note also that
your unit will run hotter when the backlight and hard disk are on for long
periods of time.