Fujitsu Lifebook L470, Manual

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U s i n g Y o u r L i f e B o o k L S e r i e s
L i f e B o o k L S e r i e s f r o m F u j i t s u
35
Each setting source puts an upper limit on the
volume which can be set by the other sources.
For example if the hardware volume control is
turned all the way down, your software volume
control settings have no effect. By the same
token, if the ESS AudioRack has the sound
turned off, adjusting the hardware or other
application software volume settings will not
produce sound. One easy operating method is
to use the hardware and ESS AudioRack volume
controls to set an upper limit on sound level
and then make fine adjustments with other
application software.
C A U T I O N
The ESS AudioRack volume setting
sets the maximum volume level of the
hardware volume control knob.
■
When used at temperatures that exceed a low
of 5°C or a high of 35°C. High temperatures
not only reduce charging efficiency, but
can also cause battery deterioration. (The
Charging icon on the Status Indicator panel
will flash when you try to charge a battery that
is outside its operating temperature range.)
■
The battery charging capacity is reduced as the
battery ages. If your battery is running low
quickly, you should replace it with a new one.
■
When using a high current device such as a
modem, a LAN card, a CD-ROM/DVD drive,
or the hard drive frequently.
Using the AC adapter will conserve your battery
when using a high current device such as a
modem, a LAN card, a CD-ROM/DVD drive,
or the hard drive frequently.
BATTERIES
The Lithium ion battery is rechargeable with an
operating time of up to two and a half (2.5)
hours depending on active power management
features and user activity levels. Your notebook
can be operated on the primary Lithium ion
battery alone or in a dual battery configuration
with an optional second Lithium ion battery in
the Optional Detachable Bay or the Optional
Mobile LAN Dock. A built-in bridge battery
allows a charged Lithium ion battery to be
exchanged for a discharged one by "warm-swap-
ping". To warm-swap, have a charged battery
ready, put your notebook in Suspend mode,
remove the low battery and quickly insert a
charged battery.
The Lithium ion battery operating time may
become shorter than the reference value if it
is used under the following conditions: