User manual FUJITSU B3020

[. . . ] Fujitsu LifeBook B Series User's Guide LifeBook B Series Model: B3020/B3020D Document Date: 04/26/2004 Document Part Number: B6FH-1921-01EN-00 FUJITSU COMPUTER SYSTEMS Copyright Copyright Fujitsu Computer Systems Corporation has made every effort to ensure the accuracy and completeness of this document. However, as ongoing development efforts are continually improving the capabilities of our products, we cannot guarantee the accuracy of the contents of this document. Fujitsu, the Fujitsu logo, and LifeBook are registered trademarks of Fujitsu Limited. The following are registered trademarks of Microsoft Corporation: MS, MS-DOS, Windows. [. . . ] This is not a user serviceable part but has a normal life of 3 to 5 years. Video Problems The built-in display is blank when you turn on your notebook. The optional Port Replicator is attached, an external monitor is plugged in, and the notebook is set for an external monitor only. (See figure 2-5 on page 8 for location) Pressing [F10] while holding down the [Fn] key allows you to change your selection of where to send your display video. Each time you press the combination of keys you will step to the next choice. The choices, in order are: built-in display only, external monitor only, both built-in display and external monitor. Move the display and the brightness control until you have adequate visibility. The angle of the display and the brightness settings are not adequate for your lighting conditions. The power management timeouts may be set for very short intervals and you failed to notice the display come on and go off again. The notebook turned on with a series of beeps and your built-in display is blank. Your system display won't turn on when the system is turned on or when the system has resumed. Power On Self Test (POST) has detected a failure which does not allow the display to operate. The system may be passwordprotected. Press any button the keyboard, or move the mouse to restore operation. (The display may be shut off by Standy mode, Auto Suspend or Video Timeout) Contact your support representative. Check the status indicator panel to verify that the Security icon is blinking. Press any button on the keyboard, or move the mouse to restore operation. Check your power management settings, or close your applications and go to the Power Savings menu of the setup utility to adjust the timeout values to better suit your operation needs. (See figure 2-5 on page 8 for location) 59 The notebook has gone into Video Timeout, Standby Mode, or Hibernate Mode because you have not used it for a period of time. Something is pushing on the Closed Cover switch. LifeBook B Series ­ Section Five Problem Possible Cause Possible Solutions The display goes blank by itself after you have been using it. The Built-in Display has bright or dark spots. The power management timeouts may be set for very short intervals and you failed to notice the display come on and go off again. A foreign object, such as a paper clip, is stuck between the display and the keyboard. If the spots are very tiny and few in number, this is normal for a large LCD display. If the spots are numerous or large enough to interfere with your operation needs. Press any button on the keyboard, or move the mouse to restore operation. (The display may be shut off by Standby Mode, Auto Suspend or Video Timeout) Remove all foreign objects from the keyboard. This is normal; do nothing. Display is faulty; contact your support representative. Display compression gives a clearer but smaller display for applications that do not support 800 x 600/1024 x 768 pixel resolution. You can fill the screen but have less resolution by changing your display compression setting, (See the Video Features submenu, located within the Advanced menu of the BIOS. [. . . ] In order to improve security, the network key is set allowing no communication unless "Network name (SSID)" coincides with the network key. Open system authentication Null authentication method specified in the 802. 11 standard that performs no authentication checks on a wireless client before allowing it to associate. PPPoE (Point to Point Protocol over Ethernet) A method of allowing the authentication protocol adopted in telephone line connection (PPP) to be used over an Ethernet. Ordered data communication is allowed by making all conditions required for communication including the method of data transmission/reception and actions upon communication errors into procedures. 101 LifeBook B Series Notebook - Appendix Shared key authentication 802. 11 network authentication method in which the AP sends the client device a challenge text packet that the client must then encrypt with the correct WEP key and return to the AP. [. . . ]