User Manual

Table Of Contents
both “System ON CDP Charge Mode” and “USB Sleep and Charge
function”.
USB Charging (Only for C50-J/A50-J/R50-J)
Your computer can supply USB Bus power (DC5V) to the USB port.
The port with the icon ( ) supports the following feature:
Power Off and Charge
System ON CDP Charge
Power Off and Charge
You can use the Power Off and Charge function to charge certain USB-
compatible external devices such as mobile phones or portable digital
music players. Your computer can supply USB bus power (DC5V) to the
compatible port even when the computer is powered off. "Power Off"
includes Hibernation Mode, or Shutdown state.
To set the Power Off and Charge feature, click Start -> dynabook
Settings -> USB Charge.
Move the slider to enable or disable the Power Off and Charge function.
The Power Off and Charge function might not work with certain
external devices even if they are compliant with the USB specification.
In those cases, turn the power of the computer ON to charge the
device.
When the Power Off and Charge function is enabled, USB bus power
(DC5V) is supplied to compatible ports even when the computer is
powered OFF. USB bus power (DC5V) is similarly supplied to the
external devices which are connected to the compatible ports.
However, some external devices cannot be charged solely by
supplying USB bus power (DC5V). As for the specifications of the
external devices, contact the device manufacturer or check the
specifications of the external devices thoroughly before use.
Using the Power Off and Charge function to charge external devices
takes longer than charging the devices with their own chargers.
If the Power Off and Charge function is enabled, the computer’s
battery discharges during hibernation or when the computer is turned
off. It is recommended that you connect the AC adaptor to the
computer while using Power Off and Charge function.
External devices connected to the USB bus power (DC5V) function
that interfaces with the power ON/OFF of the computer might always
be in an operational state.
User's Manual 5-5