Sony VAIO PCG-SR27, User Manual

Page: 34 / 137

VAIO® Notebook User Guide
34
Notes on Using Power Management
❑
If you find that an application exhibits unexpected behavior (such as reduced
video quality) after returning from a power saving mode, you should close
that application before your notebook enters a power saving mode.
❑
For maximum audio and video performance, use PowerPanel to select either
the AC Power Profile or the Power Management Off profile.
❑
If your battery level falls to less than 10 percent, you should either attach the
AC adapter to recharge the battery or shut down your notebook and insert a
fully charged battery.
❑
When the internal backup battery is low on power, it may not be able to boot
your system properly. You can correct this condition as follows:
❑
Plug in the AC adapter and allow the notebook to charge for one hour
while the power is on. Do not use the notebook during this time.
❑
After one hour, turn the power off and then on again. To charge the
internal backup battery fully, keep the AC adapter connected for more
than 24 hours after turning the power on. You can use your notebook
while charging the battery.
❑
The operating system may become unstable if a lower power state such as
Hibernate is initiated and then changed before the operating system
completely enters the lower power state. To restore the notebook to its
normal operating stability, close all open applications, and slide the power
switch forward and hold it there for four seconds or more to completely shut
down the notebook.
Using a Phone Line
The Internal Modem
The notebook comes with an internal fax modem that allows you to exchange
data by faxing through the Internet or faxing by connecting the notebook to the
telephone line using a phone cable (optional).
The maximum communication speed of the internal modem (V.90, 56K) is
56 Kbps for data reception and 33.6 Kbps for data transmission. This speed may
vary depending on the line conditions.