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ThinkPad T40 Series
Service and Troubleshooting Guide
® ThinkPad T40 Series Service and Troubleshooting Guide
Note Before using this information and the product it supports, be sure to read the general information under “Important safety information” on page v, Appendix A, “Wireless related information,” on page 47, Appendix B, “Warranty information,” on page 51, and Appendix D, “Notices,” on page 79. First Edition (May 2005) © Copyright Lenovo 2005. Portions © Copyright International Business Machines Corporation 2005. All rights reserved. U.S. GOVERNMENT USERS – RESTRICTED RIGHTS: Our product
Contents Important safety information . . . . . .v For ThinkPad T41/41p Series computer . .36 Conditions that require immediate action . .v For other ThinkPad T40 Series computer 37 General safety guidelines . . . . . . . .vi Upgrading the hard disk drive . . . . . .38 Service . . . . . . . . . . . . .vi Replacing the battery . . . . . . . . .40 Power cords and power adapters . . . . vii Extension cords and related devices . . . viii Chapter 3. Getting help and service . . .43 Plu
® iv ThinkPad T40 Series Service and Troubleshooting Guide
Important safety information Note Please read important safety information first. This information can help you safely use your ThinkPad personal computer. Follow and retain all information included with your computer. The information in this document does not alter the terms of your purchase agreement or the Lenovo Statement of Limited Warranty. Customer safety is important. Our products are developed to be safe and effective. However, personal computers are electronic devices. Po
Or, they might indicate a potential safety issue. However, do not take risks or attempt to diagnose the situation yourself. Frequently inspect your computer and its components for damage or wear or signs of danger. If you have any question about the condition of a component, do not use the product. Contact the Customer Support Center or the product manufacturer for instructions on how to inspect the product and have it repaired, if necessary. For a list of Service and Support phone numb
Note: Some parts can be upgraded or replaced by the customer. These parts are referred to as Customer Replaceable Units, or CRUs. Lenovo expressly identifies CRUs as such, and provides documentation with instructions when it is appropriate for customers to replace those parts. You must closely follow all instructions when performing such replacements. Always make sure that the power is turned off and that the product is unplugged from any power source before you attempt the replacement
Do not use any power adapter that shows corrosion at the ac input pins and/or shows signs of overheating (such as deformed plastic) at the ac input or anywhere on the power adapter. Do not use any power cords where the electrical contacts on either end show signs of corrosion or overheating or where the power cord appears to have been damaged in any way. Extension cords and related devices Ensure that extension cords, surge protectors, uninterruptible power supplies, and power strips t
Never attempt to open or service any battery. Do not crush, puncture, or incinerate batteries or short circuit the metal contacts. Do not expose the battery to water or other liquids. Only recharge the battery pack strictly according to instructions included in the product documentation. Battery abuse or mishandling can cause the battery to overheat, which can cause gasses or flame to “vent” from the battery pack or coin cell. If your battery is damaged, or if you notice any discharge fr
For your safety and to maintain optimum computer performance, always follow these basic precautions with your desktop computer: v Keep the cover closed whenever the computer is plugged in. v Regularly inspect the outside of the computer for dust accumulation. v Remove dust from vents and any perforations in the bezel. More frequent cleanings might be required for computers in dusty or high-traffic areas. v Do not block or restrict airflow into the front of the computer. v Do n
ToConnect ToDisconnect Turn everything OFF. Turn everything OFF. First, remove the power cord First, attach all cables to from the devices. outlet. Remove signal cables from receptacles. Attach the signal cables to receptacles. Remove all cables from devices. Attach the power cord to an outlet. Turn the device ON. Important safety information xi
DANGER Reduce the risk of fire and electric shock by always following basic safety precautions, including the following: v Do not use your computer in or near water. v During electrical storms: – Do not use your computer with the telephone cable connection. – Do not connect the cable to or disconnect it from the telephone outlet on the wall. DANGER The battery pack should be stored at room temperature, charged to approx. 30 to 50 % of capacity. We recommend that batt
DANGER If the backup battery is incorrectly replaced, there is danger of explosion. The lithium battery contains lithium and can explode if it is not properly handled or disposed of. Replace only with a battery of the same type. To avoid possible injury or death, do not: (1) throw or immerse the battery into water, (2) allow it to heat to more than 100 °C (212 °F), or (3) attempt to repair or disassemble it. Dispose of it as required by local ordinances or regulations and your compan
DANGER To reduce the risk of fire, electrical shock, or injury when using telephone equipment, always follow basic safety precautions, such as: v Never install telephone wiring during an electrical storm. v Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations. v Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface. v Use caution when installing or modi
DANGER Do not open the optical storage drive unit; no user adjustments or serviceable parts are inside. Use of controls, adjustments, or the performance of procedures other than those specified might result in hazardous radiation exposure. Class 1 laser products are not considered hazardous. The design of the laser system and the optical storage drive ensures that there is no exposure to laser radiation above a Class 1 level during normal operation, user maintenance, or servicing.
® xvi ThinkPad T40 Series Service and Troubleshooting Guide
Important notice for users Important regulatory notice for users The ThinkPad T40 Series computer complies with the radio frequency and safety standards of any country or region in which it has been approved for wireless use. You are requested to install and use your ThinkPad computer in strict accordance with the local RF regulations. Before you use the ThinkPad T40 Series computer, please find and read ThinkPad T40 Series Regulatory Notice, the notice that supplements this Service
® xviii ThinkPad T40 Series Service and Troubleshooting Guide