User manual IBM THINKPAD T43

[. . . ] ThinkPad Computer Hardware Maintenance Manual July 2005 This manual supports: ThinkPad T43 (MT 1871/1872/1873/1874/1875/1876) ThinkPad Dock II (MT 2877) Note Before using this information and the product it supports, be sure to read the general information under "Notices" on page 213. First Edition (July 2005) © Copyright Lenovo 2005. Portions © Copyright International Business Machines Corporation 2005. GOVERNMENT USERS ­ RESTRICTED RIGHTS: Our products and/or services are provided with RESTRICTED RIGHTS. Use, duplication or disclosure by the Government is subject to the GSA ADP Schedule contract with Lenovo Group Limited, if any, or the standard terms of this commercial license, or if the agency is unable to accept this Program under these terms, then we provide this Program under the provisions set forth in Commercial Computer Software­Restricted Rights at FAR 52. 227-19, when applicable, or under Rights in Data-General, FAR 52. 227. 14 (Alternate III). Contents About this manual . [. . . ] If two DIMMs are installed, remove one of them and run Diagnostics --> Memory Test--Quick. If the problem does not recur, return the DIMM to its place, remove the other one, and run the test again. If the test does not detect the error, run Diagnostics --> Memory Test--Full. Turn on the computer and check the air turbulence at the louver near the PC Card slot. Run Diagnostics --> ThinkPad Devices --> Fan. If the TrackPoint does not work, check the configuration as specified in the ThinkPad Configuration program. If the TrackPoint is disabled, select Automatic to enable it. After you use the TrackPoint, the pointer may drift on the screen for a short time. This drift can occur when a slight, steady pressure is applied to the TrackPoint pointer. If the pointer stops after a short time, no service action is necessary. If enabling the TrackPoint does not correct the problem, continue with the following: v Interactive Tests --> Mouse Touch Pad If the Touch Pad does not work, check the configuration as specified in the ThinkPad Configuration program. If the Touch Pad is disabled, select Automatic to enable it. If enabling the Touch Pad does not correct the problem, continue with the following: v Interactive Tests --> Mouse Fan TrackPoint or pointing device 54 MT 1871/1872/1873/1874/1875/1876 Product overview Fn key combinations The following table shows the function of each combination of Fn with a function key. Key combination Fn+F1 Fn+F2 Fn+F3 Description Reserved. Turn off the computer display, leaving the screen blank. To turn the computer display on again, press any key or press the TrackPoint pointing stick. To return to normal operation, press the Fn key only, without pressing a function key. This mode is called suspend mode in Windows NT. In Windows 2000 and Windows XP, this combination of keys functions as a sleep button. The setting can be changed so that pressing it puts the computer into hibernation mode or even shuts the computer down. Fn+F5 Control the power source of the built-in Bluetooth wireless device. This combination of the keys functions as a toggle switch of the power state. Note: In Windows 2000 or Windows XP, this combination of keys enables or disables the built-in wireless networking features (the IEEE 802. 11 standard) and the Bluetooth wireless features. [. . . ] The furnishing of this document does not give you any license to these patents. You can send license inquiries, in writing, to: Lenovo (United States), Inc. 54 Research Triangle Park, NC 27709 U. S. A. Attention: Lenovo Director of Licensing LENOVO GROUP LTD. [. . . ]