User manual IBM THINKPAD R52 Hardware Guide

[. . . ] ThinkPad Computer Hardware Maintenance Manual August 2005 This manual supports: ThinkPad R50e Series (MT 1834, 1842, 2670) ThinkPad R51e Series (MT 1843, 1844, 1845) ThinkPad R52 Series (MT 1846, 1847, 1848, 1849, 1850, 1858, 1859, 1860, 1861, 1862, 1863, 1870) 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 263. First Edition (August 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 . [. . . ] Diagnostics --> ThinkPad Devices --> AC Adapter, Battery 1 (Battery 2) 1. Interactive Tests --> Video Modem daughter card (MDC-2 or BMDC-3) 1. Replace the modem jack and the modem card in turn, and run the following tests in Diagnostics --> Communication: a. Diagnostics --> Other Devices --> Analog Devices AC97 CODEC Test Interactive Tests --> Internal Speaker 1. Insert a PC Card Wrap Plug into every PC Card slot, and run Diagnostics --> Systemboard --> PCMCIA External Loop 1. Interactive Tests --> Keyboard Diagnostics --> Fixed Disks Power LCD unit Audio Speaker PC Card slots ExpressCard slot Keyboard Hard disk drive (continued) ThinkPad R50e, R51e and R52 Series 57 Product overview FRU Diskette drive DVD drive or DVD/CD-RW combo drive Memory Applicable test 1. 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. If the TrackPoint does not work, check the configuration as specified in the ThinkPad Configuration program. If the TrackPoint is disabled, select Automatic (or Enable) 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 enabling the Touch Pad does not correct the problem, continue with the following: v Interactive Tests --> Mouse Fan TrackPoint or pointing device 58 R50e, R51e and R52 Series 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. R50e and R52 series: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. R51e series:Select a power scheme that has been created by Power Manager. A panel for selecting a power scheme appears when this combination is pressed. If the user has logged on with a administrator user ID, and Fn+F3 is pressed, the panel for selecting a power scheme appears. [. . . ] Any functionally equivalent product, program, or service that does not infringe any Lenovo intellectual property right may be used instead. However, it is the user's responsibility to evaluate and verify the operation of any other product, program, or service. Lenovo may have patents or pending patent applications covering subject matter described in this document. The furnishing of this document does not give you any license to these patents. [. . . ]