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ThinkPad Computer
Hardware Maintenance Manual
July 2005
This manual supports:
ThinkPad T43
(MT 1871/1872/1873/1874/1875/1876)
ThinkPad Dock II (MT 2877)
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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 213. First Edition (July 2005) © Copyright Lenovo 2005. Portions © Copyright International Business Machines Corporation 2005. All rights reserved. U.S. GOVERNMENT USERS – RESTRICTED RIGHTS: Our products and/or services are provided with RESTRICTED RIGHTS. Use, duplication or disclosure by the Government is subject to the GSA ADP Schedule contract with Len
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Contents About this manual . . . . . . . . . . .1 Introduction . . . . . . . . . . . . .3 Important service information . . . . . . . . .3 Strategy for replacing FRUs . . . . . . . . .3 Strategy for replacing a hard disk drive . . . . .4 How to use error messages . . . . . . . .4 Strategy for replacing FRUs for CTO, CMV, and GAV 4 Product definition . . . . . . . . . . .4 FRU identification for CTO, CMV, and GAV products 5 Important information about replacing RoHS compliant F
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FRU replacement notices . . . . . . . . .67 Screw notices . . . . . . . . . . . .67 Retaining serial numbers . . . . . . . . .68 Removing and replacing a FRU . . . . . . . .71 1010 Battery pack (14.1-in. LCD models) . . . .72 1020 Battery pack (15.0-in. LCD models) . . . .74 1030 Ultrabay Slim device . . . . . . . .75 1040 Hard disk drive . . . . . . . . . .76 1050 DIMM (optional) . . . . . . . . .78 1060 Keyboard . . . . . . . . . . .80 1070 DIMM (standard) . . . . . . . .
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Rear view . . . . . . . . . . . . . 182 Bottom view . . . . . . . . . . . . 183 Parts list . . . . . . . . . . . . . . 184 Overall . . . . . . . . . . . . . 185 14.1-in. LCD FRUs . . . . . . . . . . 194 15.0-in. LCD FRUs . . . . . . . . . . 196 Keyboard . . . . . . . . . . . . . 199 Recovery CDs . . . . . . . . . . . 203 Miscellaneous parts . . . . . . . . . . 205 AC adapters . . . . . . . . . . . . 208 Optional FRUs . . . . . . . . . . . 209 Common parts list . . . . . .
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vi MT 1871/1872/1873/1874/1875/1876
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About this manual This manual contains service and reference information for ® ThinkPad T43 series (MT 1871, 1872, 1873, 1874, 1875, and 1876), and ThinkPad Dock II (MT 2877) products. Use this manual along with the advanced diagnostic tests to troubleshoot problems. The manual is divided into sections as follows: v The common sections provide general information, guidelines, and safety information required in servicing computers. v The product-specific section includes servic
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2 MT 1871/1872/1873/1874/1875/1876
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Introduction Important service information Important BIOS and device driver fixes are customer-installable. The BIOS and device drivers are posted on the customer support site http://www.lenovo.com/think/ support Advise customers to contact the Customer Support Center at 800-426-7378 if they need assistance in obtaining or installing any diskette fixes. Customers in Canada should call the Customer Support Center at 800-565-3344 for assistance or download information. Strategy f
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Important service information Strategy for replacing a hard disk drive Always try to run a low-level format before replacing a hard disk drive. Attention: The drive startup sequence in the computer you are servicing may have been changed. Be extremely careful during write operations such as copying, saving, or formatting. If you select an incorrect drive, data or programs can be overwritten. How to use error messages Use the error codes displayed on the screen to diagnose failures.
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Important service information v The HMM will have the 4-digit MT and 3-digit CTO model only (Example: 1829-CTO). Again, CMVs are custom models and are not found in the HMM. General Announce Variant (GAV) This is a standard model (fixed configuration). GAVs are announced and offered to all customers. The MTM portion of the machine label is a 4-digit MT and 3-digit model, where model = a “fixed part number”, not “CTO” (Example: 1829-F1U). Also, PEW, eSupport, and the HMM will list these
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Important service information v eSupport can be used to view the list of key commodities built in a particular machine serial (this is the same record found in PEW). v eSupport can be accessed at the following Web site: http://www.lenovo.com/think/ support v To view the key commodities, click on PARTS INFORMATION, then PARTS LOOKUP. Type in the model type and serial number. The key commodities will be returned in the eSupport record under PARTS SHIPPED WITH YOUR SYSTEM. For the
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Important service information Important information about replacing 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 after June 2006. Products on the market before June 2006 are not required to have RoHS compliant parts. So, if the original FRU parts
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Important service information Products marketed before Products marketed after June June 2006 2006 Current or Replacement Current or Replacement original part FRU original part FRU Non-RoHS Can be Must be RoHS Must be RoHS Non-RoHS Non-RoHS Can be RoHS Non-RoHS Can sub to RoHS RoHS Must be RoHS Note: A direct substitution is a part with a different FRU part number that is automatically shipped by the distribution center at the time of the order. Related web URLs are: v IBM In
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Safety notices Safety notice 1 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. Avant de remettre l’ordinateur sous tension après remplacement d’une unité en clientèle, vérifiez que tous les ressorts, vis et autres pièces sont bien en
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Safety notices Safety notice 2 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 battery as required by local ordinances or regulations. Use only the battery in the appropriate parts listing. Use of an incorrect battery can result in ignition or explosion of the battery. Certaines batteries de secours contiennent du nickel et du cadmium
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Safety notices (continuation of safety notice 2) Alcune batterie di riserva contengono una piccola quantità di nichel e cadmio. Non smontarle, ricaricarle, gettarle nel fuoco o nell’acqua né cortocircuitarle. Smaltirle secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali). Quando si sostituisce la batteria dell’RTC (real time clock) o la batteria di supporto, utilizzare soltanto i tipi inseriti nell’appropriato Catalogo parti. L’impiego di una b
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Safety notices Safety notice 3 DANGER The battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire or water, or short-circuit it. Dispose of the battery pack as required by local ordinances or regulations. Use only the battery in the appropriate parts listing when replacing the battery pack. Use of an incorrect battery can result in ignition or explosion of the battery. La batterie contient du nickel. Ne la démontez pas, ne l’exposez ni au feu
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Safety notices (continuation of safety notice 3) La batteria contiene piccole quantità di nichel. Non smontarla, gettarla nel fuoco o nell’acqua né cortocircuitarla. Smaltirla secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali). Quando si sostituisce la batteria, utilizzare soltanto i tipi inseriti nell’appropriato Catalogo parti. L’impiego di una batteria non adatta potrebbe determinare l’incendio o l’esplosione della batteria stessa. Las baterí
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Safety notices Safety notice 4 DANGER The lithium battery can cause a fire, an explosion, or a severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 100°C (212°F), incinerate it, or expose its cell contents to water. Dispose of the battery as required by local ordinances or regulations. Use only the battery in the appropriate parts listing. Use of an incorrect battery can result in ignition or explosion of the battery. La pile de sauve
