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ThinkPad Edge 14″,Edge15″, E40, and
E50
Hardware Maintenance Manual
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ThinkPad Edge 14″,Edge15″, E40, and E50 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 185. First Edition (March 2010) © Copyright Lenovo 2010. 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 Status indicators ..........69 Safety inspection guide...........5 Handling devices that are sensitive to electrostatic discharge ...............6 Special keys and Fn key combination 71 Grounding requirements ..........6 Safety notices (mu
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Miscellaneous parts ...........173 Windows 7 Professional (32 bit) DVDs....179 AC adapters..............174 Windows 7 Professional (64 bit) DVDs....181 Power cords..............175 Common service tools ..........183 Recovery discs.............176 Windows 7 Home Basic (32 bit) DVDs....176 Notices..............185 Windows 7 Home Premium (32 bit) DVDs . . 177 Trademarks..............186 Windows 7 Home Premium (64 bit) DVDs . . 178 iv ThinkPad Edge 14″, Edge 15″, E40, and E50 Hardware Maintenance Ma
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About this manual This manual contains service and reference information for the following ® ThinkPad Notebook products. ThinkPad Edge 14″ and E40 Machine Type (MT) 0199, 0578, and 0579 ThinkPad Edge 15″ and E50 MT 0301, 0302, and 0319 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 ThinkPad Notebook products. Use this manual along with the advanced diagnostic tests to
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vi ThinkPad Edge 14″, Edge 15″, E40, and E50 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 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
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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 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 information 9
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10 ThinkPad Edge 14″, Edge 15″, E40, and E50 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
