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ThinkPad T400s
Hardware Maintenance Manual
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ThinkPad T400s Hardware Maintenance Manual
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Note Before using this information and the product it supports, be sure to read the general information under “Notices” on page 173. First Edition (June 2009) © Copyright Lenovo 2009. LENOVO products, data, computer software, and services have been developed exclusively at private expense and are sold to governmental entities as commercial items as defined by 48 C.F.R. 2.101 with limited and restricted rights to use, reproduction and disclosure. LIMITED AND RESTRICTED RIGHTS NOTICE: If products,
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Contents No-beep symptoms...........66 About this manual..........v LCD-related symptoms .........67 Intermittent problems..........68 Safety information..........1 Undetermined problems.........68 General safety..............2 Electrical safety .............3 Specifications............69 Safety inspection guide...........5 Handling devices that are sensitive to electrostatic discharge ...............6 Status indicators ..........71 Grounding requirements ..........6 Safety notices (multilingual
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Windows Vista Home Premium (32 bit) recovery Parts list .............145 DVDs...............166 Overall ...............146 Windows Vista Business (32 bit) recovery DVDs 167 LCD FRUs ..............156 Windows Vista Business (64 bit) recovery DVDs 169 Keyboard...............158 Windows Vista Ultimate (32 bit) recovery DVDs 170 Miscellaneous parts ...........159 Common service tools ..........171 AC adapters..............161 Power cords..............162 Recovery discs.............163 Notices.......
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About this manual This manual contains service and reference information for the following ® ThinkPad products. ThinkPad T400s MT 2801, 2808, 2809, 2815, 2823, 2824, and 2825 Use this manual along with the advanced diagnostic tests to troubleshoot problems. Important: This manual is intended only for trained servicers who are familiar with ThinkPad products. Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively. Before servicing a ThinkPad product, be sure
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vi ThinkPad T400s Hardware Maintenance Manual
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Safety information This chapter presents following safety information that you need to be familiar with before you service a ThinkPad Notebook. v “General safety” on page 2 v “Electrical safety” on page 3 v “Safety inspection guide” on page 5 v “Handling devices that are sensitive to electrostatic discharge” on page 6 v “Grounding requirements” on page 6 v “Safety notices (multilingual translations)” on page 7 v “Laser compliance statement (multilingual translations)” on page 28 © Copyright Leno
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General safety Follow these rules to ensure general safety: v Observe good housekeeping in the area of the machines during and after maintenance. v When lifting any heavy object: 1. Make sure that you can stand safely without slipping. 2. Distribute the weight of the object equally between your feet. 3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift. 4. Lift by standing or by pushing up with your leg muscles; this action removes the strain from the muscles in you
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Electrical safety Observe the following rules when working on electrical equipment. Important: Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges. Do not use this type of mat to protect yourself from electrical shock. v Find the room emergency
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v Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is conductive; such touching can cause personal injury and machine damage. v Do not service the following parts with the power on when they are removed from their normal operating places in a machine: – Power supply units – Pumps – Blowers and fans – Motor generators – Similar units to listed above This practice ensures correct grounding of the units. v If an electrical accident occurs: –
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Safety inspection guide The purpose of this inspection guide is to assist you in identifying potentially unsafe conditions. As each machine was designed and built, required safety items were installed to protect users and service personnel from injury. This guide addresses only those items. You should use good judgment to identify potential safety hazards due to attachment of non-ThinkPad features or options not covered by this inspection guide. If any unsafe conditions are present, you must det
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Handling devices that are sensitive to electrostatic discharge Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD.) ESD damage can occur when there is a difference in charge between objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge. Notes: 1. Use product-specific ESD procedures when they exceed the re
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Safety notices (multilingual translations) The safety notices in this section are provided in the following languages: v English v Arabic v Brazilian Portuguese v French v German v Hebrew v Japanese v Korean v Spanish v Traditional Chinese Safety information 7
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DANGER Before the computer is powered on after FRU replacement, make sure all screws, springs, and other small parts are in place and are not left loose inside the computer. Verify this by shaking the computer and listening for rattling sounds. Metallic parts or metal flakes can cause electrical shorts. DANGER Some standby batteries contain a small amount of nickel and cadmium. Do not disassemble a standby battery, recharge it, throw it into fire or water, or short-circuit it. Dispose of the bat
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DANGER To avoid shock, do not remove the plastic cover that protects the lower part of the inverter card. DANGER Though the main batteries have low voltage, a shorted or grounded battery can produce enough current to burn personnel or combustible materials. DANGER Unless hot swap is allowed for the FRU being replaced, do as follows before removing it: power off the computer, unplug all power cords from electrical outlets, remove the battery pack, and disconnect any interconnecting cables. Safety
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10 ThinkPad T400s Hardware Maintenance Manual
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Safety information 11
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PERIGO Antes de ligar o computador após a substituição da FRU, certifique-se de que todos os parafusos, molas e outras peças pequenas estejam no lugar e não estejam soltos dentro do computador. Verifique isso sacudindo o computador e procurando ouvir sons de peças soltas. Peças metálicas ou lascas de metal podem causar curto-circuito. PERIGO Algumas baterias reserva contêm uma pequena quantidade de níquel e cádmio. Não desmonte uma bateria reserva, recarregue-a, jogue-a no fogo ou na água, ou de
