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. We disclaim liability for errors, omissions, or future changes. Fujitsu, the Fujitsu logo, and LifeBook are registered trademarks of Fujitsu Limited. [. . . ] This may need to be a few seconds if your application is preventing the CPU from checking for button pushes. Close all applications and try the button again. Set the operating source by pressing the [ESC] key while the Fujitsu logo is on screen or use the [F2] key and enter the setup utility and adjust the source settings from the Boot menu. See "BIOS Setup Utility" on page 29. Enter the setup utility and verify the Security settings and modify them as accordingly. See "BIOS Setup Utility" on page 29. See the Power On Self Test (POST) messages to determine the meaning and severity of the problem. Not all messages are errors; some are simply status indicators. See "Power On Self Test Messages" on page 61. 58 Tr o ub le sho o ti ng Problem Possible Cause Possible Solutions Your system display won't turn on when the system is turned on or when the system has resumed. Your notebook appears to change setup parameters when you start it. The system may be passwordprotected. Check the status indicator panel to verify that the Security icon is blinking. Make sure you select Save Changes And Exit when exiting the BIOS setup utility. BIOS setup changes were not saved when you exited the BIOS setup utility, returning it to previous settings. The BIOS CMOS back-up battery has failed. Contact your support representative for repairs. 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. Something is pushing on the Closed Cover switch. 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. [. . . ] Subnet mask defines how many bits of IP address comprise the subnet address. The same value shall be set among computers communicating with each other. TCP/IP (Transmission Control Protocol/Internet Protocol) A standard protocol of the Internet. Wi-Fi Wi-Fi, or Wireless Fidelity, is a set of standards for wireless local area networks (WLAN) based on the IEEE 802. 11 specifications. [. . . ]