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ThinkCentre Hardware Maintenance Manual
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Note: Before using this information and the product it supports, be sure to read and understand the information under “Notices,” on page 383. Second Edition (May 2009) © Copyright Lenovo 2009. All rights reserved. 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 A
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Contents Chapter 1. About this manual . . . . .1 Chapter 7. Symptom-to-FRU index . . .53 Important safety information . . . . . . . . .1 Hard disk drive boot error . . . . . . . . .53 Important information about replacing the RoHS Power supply problems . . . . . . . . . .53 compliant FRUs . . . . . . . . . . . . .2 Diagnostic error codes . . . . . . . . . . .54 Beep symptoms . . . . . . . . . . . . .76 POST error codes . . . . . . . . . . . .77 Chapter 2. Safety information . .
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Replacing the card reader . . . . . . . . . 149 Machine Type 7799 . . . . . . . . . . . 367 Replacing the front audio and USB assembly . . . 150 Replacing the internal speaker . . . . . . . . 151 Chapter 11. Additional service Completing the FRU replacement . . . . . . 155 information . . . . . . . . . . . . 379 Security features . . . . . . . . . . . . 379 Chapter 10. FRU lists . . . . . . . . 157 Hardware controlled Passwords . . . . . . 379 Machine Type 7515 . . . . . . . .
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Chapter 1. About this manual ® This manual contains service and reference information for ThinkCentre computer machine types listed on the front cover. It is intended only for trained Service ® Providers who are familiar with Lenovo computer products. Note: Be sure to read and understand the Chapter 2, “Safety information,” on page 3 before using the information in this manual. The “Symptom-to-FRU Index” chapter and the “Additional service information” chapter apply to all ThinkCentr
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Important information about replacing the RoHS compliant FRUs RoHS, the Restriction of Hazardous Substances in Electrical and Electronic Equipment Directive (2002/95/EC) is a European Union legal requirement affecting the global electronics industry. RoHS requirements must be implemented on Lenovo products placed on the market and sold in the European Union after June 2006. Products on the market before June 2006 are not required to have RoHS compliant parts. If the parts are not complia
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Chapter 2. Safety information This chapter contains the safety information that you need to read and understand before servicing a computer. 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. Ensure 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 sud
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CAUTION: Electrical current from power, telephone, and communication cables can be hazardous. To avoid personal injury or equipment damage, disconnect the attached power cords, telecommunication systems, networks, and modems before you open the server/workstation covers, unless instructed otherwise in the installation and configuration procedures. Observe the following rules when working on electrical equipment. Important: Use only approved tools and test equipment. Some hand tools hav
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v Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, nongrounded power extension cables, power surges, and missing safety grounds. 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
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If any unsafe conditions are present, you must determine how serious the apparent hazard could be and whether you can continue without first correcting the problem. Consider these conditions and the safety hazards they present: v Electrical hazards, especially primary power (primary voltage on the frame can cause serious or fatal electrical shock). v Explosive hazards, such as a damaged CRT face or bulging capacitor v Mechanical hazards, such as loose or missing hardware The guid
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v Prevent the part from touching your clothing. Most clothing is insulative and retains a charge even when you are wearing a wrist strap. v Use the black side of a grounded work mat to provide a static-free work surface. The mat is especially useful when handling ESD-sensitive devices. v Select a grounding system, such as those listed below, to provide protection that meets the specific service requirement. Note: The use of a grounding system is desirable but not required to prote
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v Connect to properly wired outlets any equipment that will be attached to this product. v When possible, use one hand only to connect or disconnect signal cables. v Never turn on any equipment when there is evidence of fire, water, or structural damage. v Disconnect the attached power cords, telecommunications systems, networks, and modems before you open the device covers, unless instructed otherwise in the installation and configuration procedures. v Connect and disconnect
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CAUTION: When replacing the lithium battery, use only Part Number 33F8354 or an equivalent type battery recommended by the manufacturer. If your system has a module containing a lithium battery, replace it only with the same module type made by the same manufacturer. The battery contains lithium and can explode if not properly used, handled, or disposed of. Do not: v Throw or immerse into water v Heat to more than 100°C (212°F) v Repair or disassemble Dispose of the battery as r
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CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. 10 Hardware Maintenance Manual 2 1
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Chapter 2. Safety information 11
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12 Hardware Maintenance Manual
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≥18 kg (37 lbs) ≥32 kg (70.5 lbs) ≥55 kg (121.2 lbs) Chapter 2. Safety information 13 2 1
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PERIGO A corrente elétrica proveniente de cabos de alimentação, de telefone e de comunicações é perigosa. Para evitar risco de choque elétrico: v Não conecte nem desconecte nenhum cabo ou execute instalação, manutenção ou reconfiguração deste produto durante uma tempestade com raios. v Conecte todos os cabos de alimentação a tomadas elétricas corretamente instaladas e aterradas. v Todo equipamento que for conectado a este produto deve ser conectado a tomadas corretamente instala
