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ThinkPad Computer
Hardware Maintenance Manual
February 2006
This manual supports:
ThinkPad T40/T40p,T41/T41p,T42/T42p
(MT 2373/2374/ / ) 2375 2376/2378/2379
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 250. Second Edition (February 2006) © Copyright Lenovo 2006. Portions © Copyright International Business Machines Corporation 2006. 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 wit
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Contents About this manual . . . . . . . . . . .1 Introduction . . . . . . . . . . . . .3 Important service information . . . . . . . . .3 Strategy for replacing FRUs . . . . . . . .3 How to use error messages . . . . . . . .4 Diskette compatibility matrix . . . . . . . . .4 Safety notices: multilingual translations . . . . . .4 Safety information . . . . . . . . . . . .16 General safety . . . . . . . . . . . .16 Electrical safety . . . . . . . . . . .17 Safety inspection gui
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1030 Ultrabay Slim device . . . . . . . .74 1040 Hard disk drive . . . . . . . . . .75 1050 DIMM (optional) . . . . . . . . .77 1060 Keyboard . . . . . . . . . . .79 1070 DIMM (standard) . . . . . . . . .83 1080 Modem daughter card (MDC/MDC-2) . . .84 1090 Bluetooth/Modem daughter card (BMDC/BMDC-2) . . . . . . . . . .86 1100 Palm rest or Palm rest with fingerprint sensor (for 14.1-in. LCD models) . . . . . . . .88 1110 Keyboard bezel or Keyboard bezel with fingerprint sensor
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14.1-in. LCD FRUs . . . . . . . . . . 220 15.0-in. LCD FRUs . . . . . . . . . . 230 Keyboard . . . . . . . . . . . . . 235 Recovery CDs . . . . . . . . . . . 237 Miscellaneous parts . . . . . . . . . . 243 AC adapters . . . . . . . . . . . . 246 Optional FRUs . . . . . . . . . . . 247 Common parts list . . . . . . . . . . 248 Notices . . . . . . . . . . . . . . 250 Trademarks . . . . . . . . . . . . . 252 Contents v
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vi T40/T40p, T41/T41p, T42/T42p
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About this manual This manual contains service and reference information for ® ThinkPad T40/T40p, T41/T41p, T42/T42p series (MT2373, 2374, 2375, 2376, 2378, 2379, 2668, 2669, 2678, 2679, 2686, and 2687), and ThinkPad Dock II (MT2877) 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
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2 T40/T40p, T41/T41p, T42/T42p
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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/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 for repl
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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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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
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Safety notices (continuation of safety notice 4) La batteria di supporto e una batteria al litio e puo incendiarsi, esplodere o procurare gravi ustioni. Evitare di ricaricarla, smontarne il connettore polarizzato, smontarla, riscaldarla ad una temperatura superiore ai 100 gradi centigradi, incendiarla o gettarla in acqua. Smaltirla secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali). L’impiego di una batteria non adatta potrebbe determinare l’i
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Safety notices Safety notice 5 If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water for at least 15 minutes. Seek medical care if any symptoms from the fluid are present after washing. Si le panneau d’affichage à cristaux liquides se brise et que vous recevez dans les yeux ou sur les mains une partie du fluide, rincez-les abondamment pendant au moins quinze minutes. Consultez un médecin si des sym
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Safety notices Safety notice 6 DANGER To avoid shock, do not remove the plastic cover that protects the lower part of the inverter card. Afin d’éviter tout risque de choc électrique, ne retirez pas le cache en plastique protégeant la partie inférieure de la carte d’alimentation. Aus Sicherheitsgründen die Kunststoffabdeckung, die den unteren Teil der Spannungswandlerplatine umgibt, nicht entfernen. Per evitare scosse elettriche, non rimuovere la copertura in plastica che
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Safety notices Safety notice 7 DANGER Though the main batteries have low voltage, a shorted or grounded battery can produce enough current to burn personnel or combustible materials. Bien que le voltage des batteries principales soit peu élevé, le court-circuit ou la mise à la masse d’une batterie peut produire suffisamment de courant pour brûler des matériaux combustibles ou causer des brûlures corporelles graves. Obwohl Hauptbatterien eine niedrige Spannung haben, können s
