Summary of the content on the page No. 1
ThinkPad T400 and R400
Hardware Maintenance Manual
Summary of the content on the page No. 2
Summary of the content on the page No. 3
ThinkPad T400 and R400 Hardware Maintenance Manual
Summary of the content on the page No. 4
Note Before using this information and the product it supports, be sure to read the general information under “Notices” on page 375. Sixth Edition (Sept ember 2011) © Copyright L enovo 2008, 2011. LIMITED AND RES TRIC TED RIGHT S NO TICE: If data or softwar e is deliver ed pursuant a Gener al Ser vices Administr ation “GSA ” contr act, use, r epr oduction, or disclosur e is subject t o r estrictions set for th in Contr act No. GS-35F-05925.
Summary of the content on the page No. 5
Contents Symptom-to-FRU index ..........62 About this manual..........v Numeric error codes ..........62 Error messages............66 Safety information..........1 Beep symptoms............67 General safety..............2 No-beep symptoms...........67 Electrical safety .............3 LCD-related symptoms .........68 Safety inspection guide...........5 Intermittent problems..........69 Handling devices that are sensitive to electrostatic Undetermined problems.........69 discharge ...............6
Summary of the content on the page No. 6
2040 Bluetooth daughter card (BDC-2.1) ....137 Windows XP Professional (32 bit) DVDs . . . 354 2050 LCD magnesium frame, hinge assembly, and Windows Vista Starter (32 bit) recovery DVDs 356 integrated camera............138 Windows Vista Home Basic (32 bit) recovery 2060 Antenna assembly..........141 DVDs...............357 2070 LCD panel and LCD cable .......143 Windows Vista Home Premium (32 bit) recovery DVDs...............359 Windows Vista Business (32 bit) recovery DVDs 361 Locations.........
Summary of the content on the page No. 7
About this manual This manual contains service and reference information for the following ® ThinkPad products. ThinkPad T400 MT 2764, 2765, 2766, 2767, 2768, 2769, 2773, 6473, 6474, 6475, 7417, 7420, 7425, and 7434 ThinkPad R400 MT 2782, 2783, 2784, 2786, 2787, 2788, 2789, 7438, 7439, 7440, 7443, 7445, 7446, and 7447 Use this manual along with the advanced diagnostic tests to troubleshoot problems. Important: This manual is intended only for trained service technicians who are familiar with Thi
Summary of the content on the page No. 8
vi ThinkPad T400 and R400 Hardware Maintenance Manual
Summary of the content on the page No. 9
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 L en
Summary of the content on the page No. 10
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
Summary of the content on the page No. 11
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
Summary of the content on the page No. 12
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: –
Summary of the content on the page No. 13
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 technicians 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 d
Summary of the content on the page No. 14
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
Summary of the content on the page No. 15
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
Summary of the content on the page No. 16
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
Summary of the content on the page No. 17
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
Summary of the content on the page No. 18
10 ThinkPad T400 and R400 Hardware Maintenance Manual
Summary of the content on the page No. 19
Safety information 11
Summary of the content on the page No. 20
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
