IBM ThinkPad 240 free download

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IBM Mobile Systems S09N-8590-00 ThinkPad 240 Hardware Maintenance Manual December 2000 i Before using this information and the product it supports, be sure to read the general information under "Read This First" on page 1. Second Edition (October 1999) The following paragraph does not apply to the United Kingdom or any country where such provisions are inconsistent with local law: INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION "AS IS" WITHOUT ANY WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE LIMITED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimers or express or implied warranties in certain transactions; therefore, this statement may not apply to you. This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the publication. IBM may make improvements or changes in the products or the programs described in this publication at any time. It is possible that this publication may contain references to, or information about, IBM products (machines and programs), programming, or services that are not announced in your country. Such references or information must not be construed to mean that IBM intends to announce such IBM products, programming, or services in your country. Requests for technical information about IBM products should be made to your IBM Authorized Dealer or your IBM Marketing Representative. © Copyright International Business Machines Corporation 1999. All rights reserved. Note to US Government Users -- Documentation related to restricted rights -- Use, duplication, or disclosure is subject to restrictions set forth in GSA ADP Schedule Contract with IBM Corp. Contents ThinkPad 240 Hardware Maintenance Manual Read This First . . . . . . . . . . . . . . . . What to Do First . . . . . . . . . . . . . . How to Disable the Password . . . . . . . Product Overview . . . . . . . . . . . . . . . Fn Key Combinations . . . . . . . . . . . Status Indicators . . . . . . . . . . . . . . Checkout Guide . . . . . . . . . . . . . . . Audio Checkout . . . . . . . . . . . . . . Fan ASM Checkout . . . . . . . . . . . . Keyboard and Auxiliary Input Device Checkout Memory Checkout . . . . . . . . . . . . . Modem Board Checkout . . . . . . . . . . Power System Checkout . . . . . . . . . . TrackPoint Checkout . . . . . . . . . . . . I/O Ports Checkout . . . . . . . . . . . . Power Management Features . . . . . . . Symptom-to-FRU Index . . . . . . . . . . . . Numeric Error Codes . . . . . . . . . . . . Error Messages . . . . . . . . . . . . . . No Beep Symptoms . . . . . . . . . . . . LCD-Related Symptoms . . . . . . . . . . Keyboard-Related Symptoms . . . . . . . . Indicator-Related Symptoms . . . . . . . . Power-Related Symptoms . . . . . . . . . PC Card (PCMCIA)-Related Symptoms . . . Speaker-Related Sympto