User manual TOSHIBA SATELLITE U400

[. . . ] If you fail to do so, this product may not function properly and you may lose data or suffer other damage. TOSHIBA AMERICA INFORMATION SYSTEMS ("TOSHIBA"), ITS AFFILIATES AND SUPPLIERS DO NOT WARRANT THAT OPERATION OF THE PRODUCT WILL BE UNINTERRUPTED OR ERROR FREE. YOU AGREE THAT TOSHIBA, ITS AFFILIATES AND SUPPLIERS SHALL HAVE NO RESPONSIBILITY FOR DAMAGE TO OR LOSS OF ANY BUSINESS, PROFITS, PROGRAMS, DATA OR REMOVABLE STORAGE MEDIA ARISING OUT OF OR RESULTING FROM THE USE OF THE PRODUCT, EVEN IF ADVISED OF THE POSSIBILITY THEREOF. Protection of Stored Data For your important data, please make periodic back-up copies of all the data stored on the hard disk or other storage devices as a precaution against possible failures, alteration, or loss of the data. IF YOUR DATA IS ALTERED OR LOST DUE TO ANY TROUBLE, FAILURE OR MALFUNCTION OF THE HARD DISK DRIVE OR OTHER STORAGE DEVICES AND THE DATA CANNOT BE RECOVERED, TOSHIBA SHALL NOT BE LIABLE FOR ANY DAMAGE OR LOSS OF DATA, OR ANY OTHER DAMAGE RESULTING THEREFROM. [. . . ] Use only battery chargers designed to work with your notebook computer. You can order a Toshiba battery charger from Toshiba's Web site at toshiba. com. Mobile Computing Charging the battery 117 TECHNICAL NOTE: The battery does not charge while the computer is consuming full power. The battery may take longer to charge with many applications open at the same time. The battery may not start charging immediately if: The battery is extremely hot or cold. To ensure that the battery charges to its full capacity, wait until it reaches room temperature (50 to 80 degrees Fahrenheit, 10 to 26 degrees Celsius). The battery is almost completely discharged. Leave the power connected, and the battery should begin charging after a few minutes. HINT: Once the battery is fully charged, we recommend that you operate your computer on battery power until the battery discharges completely. Doing this extends battery life and helps ensure accurate monitoring of battery capacity. Charging the RTC battery The computer contains an internal battery that provides power for the real-time clock (RTC) and calendar. During normal use, the main battery keeps the RTC battery adequately charged. Occasionally, the RTC battery may lose its charge completely, especially if you have had the computer turned off for a long time. TECHNICAL NOTE: The RTC battery does not charge while the computer is turned off even when AC power is attached. 118 Mobile Computing Monitoring battery power If the RTC battery is low, the real-time clock and calendar may display the incorrect time and date, or stop working. It is seldom necessary to charge the RTC battery because it charges while the computer is on. Do not scratch or break the casing and do not twist or bend the battery. Do not remove the battery while the computer is in Standby mode. Data in memory will be lost. Mobile Computing Changing the main battery 123 Removing the battery from the computer 1 2 Save your work. Turn off the computer via the Start menu or place it in Hibernate mode according to the instructions in "Using Hibernation" on page 108. Remove all cables connected to the computer. Close the display panel and turn the computer upside down with the front side of the computer facing you. Push and hold the battery release latch. 3 4 5 Releasing the battery 6 While still holding the release latch in the open position lift the battery pack out of the computer. 124 Mobile Computing Changing the main battery Removing the battery If the battery is leaking or its case is cracked, put on protective gloves to handle it, and discard it immediately following the advice in "Disposing of used batteries safely" on page 127. The computer's main battery is a Lithium Ion (Li-Ion) battery, which can explode if not properly replaced, used, handled, or disposed of. Putting spent batteries in the trash is not only irresponsible, it may be illegal. Dispose of the battery as required by local ordinances or regulations. Use only batteries recommended by Toshiba. Inserting the battery To insert the battery in your computer: 1 Follow steps 1-5 in "Removing the battery from the computer" on page 123. Mobile Computing Taking care of your battery 125 2 While holding the release latch in the open position, seat the battery in the battery compartment. If the battery is properly seated, the release latch will snap shut when you release it. [. . . ] To reset the computer by reloading the operating system without turning the computer off. RJ-11 -- A modular connector used on most U. S. telephone systems and direct-connect modems. The RJ-11 connector is a 6wire connector. [. . . ]