![background image](http://html.mh-extra.com/html/ibm/thinkpad-755cx/thinkpad-755cx_user-manual_607442034.webp)
Providing Power
Providing Power
Your computer can be operated with the AC Adapter, battery pack,
or Car Battery Adapter (available as an option).
AC Adapter
Note:
When the AC Adapter is connected,
and the remaining power of the
installed battery pack is less than a
certain amount, discharging and
then charging of the battery pack
starts automatically.
The AC Adapter is an alternating-current-to-direct-current (ac-to-dc)
converter that supplies power for the computer. The AC Adapter
also charges the battery pack when the battery pack is installed in
the computer. The input rating for the AC Adapter is 100–240 V ac,
50/60 Hz.
CAUTION:
Do not attempt to open the AC Adapter case. The AC Adapter
is permanently sealed and cannot be repaired.
Warning:
Always use the AC Adapter
certified by IBM in the country
where you will be using the
computer. Operating the
computer with an incorrect AC
Adapter can cause damage to the
battery pack and to the computer.
If you turn on the computer when the battery pack is installed, you
will hear a short beep when you connect or disconnect the AC
Adapter from the computer. This short beep means that the power
source has been changed.
When the AC Adapter cable is disconnected from the computer with
a battery pack installed, the LCD brightness decreases slightly to
conserve battery power.
18
IBM ThinkPad 755CX User's Guide
Summary of Contents for ThinkPad 755CX
Page 1: ...i ...
Page 6: ...vi IBM ThinkPad 755CX User s Guide ...
Page 16: ...xvi IBM ThinkPad 755CX User s Guide ...
Page 23: ...Getting Started 2 Right Side View 2 1 1 2 2 1 3 3 1 Chapter 1 Getting Started 7 ...
Page 25: ...Getting Started 2 3 1 4 5 6 7 Chapter 1 Getting Started 9 ...
Page 26: ...Getting Started 10 IBM ThinkPad 755CX User s Guide ...
Page 30: ...Locations and Functions InsideView RearView Bottom View 6 14 IBM ThinkPad 755CX User s Guide ...
Page 48: ...Carrying the Computer 32 IBM ThinkPad 755CX User s Guide ...
Page 214: ...Installing the Infrared Device Driver 198 IBM ThinkPad 755CX User s Guide ...
Page 242: ...Getting Service 226 IBM ThinkPad 755CX User s Guide ...
Page 246: ...Avoiding Hardware Conflicts 230 IBM ThinkPad 755CX User s Guide ...
Page 264: ...Additional Information for Telephony Function 248 IBM ThinkPad 755CX User s Guide ...