IBM Mobile Systems ThinkPad Computer Hardware Maintenance Manual

June 2001

This manual supports: ThinkPad A21e, A22e, i 1800 (MT 2655/2663/2664)

Note Before using this information and the product it supports, be sure to read the general information under Notices on page 137.

Second Edition (June 2001) The following paragraph does not apply to the United Kingdom or any country where such provisions are inconsistent with local law: INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION AS IS WITHOUT ANY WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE LIMITED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer or express or implied warranties in certain transactions; therefore, this statement may not apply to you. This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the publication. IBM may make improvements or changes to the products or the programs described in this publication at any time. It is possible that this publication may contain references to, or information about, IBM products (machines and programs), programming, or services that are not announced in your country. Such references or information must not be construed to mean that IBM intends to announce such IBM products, programming, or services in your country. Requests for technical information about IBM products should be made to your IBM authorized dealer or your IBM marketing representative. Copyright International Business Machines Corporation 2001. All rights reserved. Note to U.S. Government Users Documentation related to restricted rights Use, duplication, or disclosure is subject to restrictions set forth in GSA ADP Schedule Contract with IBM Corp. Copyright IBM Corp. 2001

Contents
Introduction . . . . . . . . . . . . Important service information . . . . . . . . Strategy for replacing FRUs . . . . . . . How to use error messages . . . . . . . Diskette compatibility matrix . . . . . . . . Safety notices: multilingual translations . . . . . Safety information. . . . . . . . . . . General safety . . . . . . . . . . . Electrical safety . . . . . . . . . . Safety inspection guide . . . . . . . . Handling electrostatic discharge-sensitive devices Grounding requirements . . . . . . . . Laser compliance statement. . . . . . . . General descriptions . . . . . . . . Read this first . . . . . . . . . . . What to do first: . . . . . . . . . Related service information . . . . . . . Service Web site . . . . . . . . . Product recovery program . . . . . . Passwords . . . . . . . . . . . Power management . . . . . . . . Checkout guide . . . . . . . . . . Testing the computer . . . . . . . . Detecting system information with PC-Doctor. Power system checkout . . . . . . . ThinkPad A21e, A22e, i 1800 . Product overview . . . . . Specifications . . . . . Status indicators . . . . FRU Tests . . . . . . Fn key combinations . . . Symptom-to-FRU index . . . Numeric error codes . . . Error messages . . . . Beep symptoms . . . . No beep symptoms . . . LCD-related symptoms . . Intermittent problems . . . Undetermined problems . . FRU replacement notices . . Screw notices . . . . . Retaining serial numbers. . Removing and replacing a FRU. 1010 Battery pack. . . . 1020 Backup battery . . . 1030 Hard-disk drive . . . 1040 DIMM . . . . . 1050 Mini PCI adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 . 1 . 1 . 2 . 2 . 3 . 13 . 13 . 14 . 15 16 . 17 . 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 21 21 23 23 23 25 28 31 31 33 34 37 39 39 41 43 44 46 46 49 50 50 51 52 52 53 53 54 56 57 58 60 62 63

iii

1060 Ultrabay 2000 device . . . . 1070 Keyboard . . . . . . . 1080 Keyboard CRU insulator . . . 1090 Fan assembly . . . . . . 1100 CPU . . . . . . . . . 1110 PC Card slot assembly . . . 1120 Hinge cover . . . . . . . 1130 Keyboard bezel . . . . . . 1140 Speaker . . . . . . . . 1150 Hard-disk bay . . . . . . 1160 LED connector card . . . . 1170 Ultrabay 2000 slot . . . . . 1180 System board . . . . . . 2010 LCD assembly . . . . . . 2020 Front bezel. . . . . . . 2030 Inverter card . . . . . . 2040 LCD panel . . . . . . . 2050 Sub card . . . . . . . Locations . . . . . . . . . . Front view. . . . . . . . . Rear view . . . . . . . . . Bottom view . . . . . . . . Parts list . . . . . . . . . . A21e, A22e and i 1800 model matrix . Overall . . . . . . . . . LCD FRUs . . . . . . . . Keyboard . . . . . . . . . Recovery CDs for i 1800 series . . Recovery CDs for A22e series. . . Miscellaneous parts . . . . . . Optional FRUs . . . . . . . Common parts list . . . . . . Notices . . . . . . . . . . Trademarks . . . . . . . .

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. 66 . 67 . 72 . 73 . 77 . 79 . 81 . 83 . 86 . 89 . 91 . 93 . 96 . 98 . 104 . 106 . 108 . 113 . 115 . 115 . 116 . 117 . 118 . 118 . 121 . 125 . 128 . 129 . 129 . 131 . 135 . 136 . 137 . 137

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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 IBM support site http://www.pc.ibm.com/support/ Advise customers to contact the PC Company HelpCenter at 800-772-2227 if they need assistance in obtaining or installing any diskette fixes. Customers in Canada should call IBM HelpPC at 800-565-3344 for assistance or download information.

Strategy for replacing FRUs

Before replacing parts Make sure that all diskette fixes are installed before replacing any FRUs listed in this manual. Use the following strategy to prevent unnecessary FRU replacement and service expense: v If you are instructed to replace a FRU but the replacement does not correct the problem, reinstall the original FRU before you continue. v Some computers have both a processor board and a system board. If you are instructed to replace either the processor board or the system board, and replacing one of them does not correct the problem, reinstall that board, and then replace the other one. v If an adapter or device consists of more than one FRU, any of the FRUs may be the cause of the error. Before replacing the adapter or device, remove the FRUs, one by one, to see if the symptoms change. Replace only the FRU that changed the symptoms.

Important service information

Attention The setup configuration on the computer you are servicing may have been customized. Running Automatic Configuration may alter the settings. Note the current configuration settings (using the View Configuration option); then, when service has been completed, verify that those settings remain in effect.

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. If more than one error code is displayed, begin the diagnosis with the first error code. Whatever causes the first error code may also cause false error codes. If no error code is displayed, see if the error symptom is listed in the Symptom-to-FRU Index for the computer you are servicing.

Diskette compatibility matrix

The compatibility of each of the drives with the diskettes for it is as follows:
Diskette drive 3.5-inch Diskette capacity 1.0 MB 2.0 MB 4.0 MB Compatibility

Read and write Read and write Not compatible

ThinkPad A21e, A22e, i 1800 (MT 2655/2663/2664)

Safety notices

Safety notices: multilingual translations

The safety notices are provided in English, French, German, Italian, and Spanish, as follows:

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 lordinateur sous tension aprs remplacement dune unit en clientle, vrifiez que tous les ressorts, vis et autres pices sont bien en place et bien fixes. Pour ce faire, secouez lunit et assurez-vous quaucun bruit suspect ne se produit. Des pices mtalliques ou des copeaux de mtal pourraient causer un court-circuit. Bevor nach einem FRU-Austausch der Computer wieder angeschlossen wird, mu sichergestellt werden, da keine Schrauben, Federn oder andere Kleinteile fehlen oder im Gehuse vergessen wurden. Der Computer mu geschttelt und auf Klappergerusche geprft werden. Metallteile oder-splitter knnen Kurzschlsse erzeugen. Prima di accendere lelaboratore dopo che stata effettuata la sostituzione di una FRU, accertarsi che tutte le viti, le molle e tutte le altri parti di piccole dimensioni siano nella corretta posizione e non siano sparse allinterno dellelaboratore. Verificare ci scuotendo lelaboratore e prestando attenzione ad eventuali rumori; eventuali parti o pezzetti metallici possono provocare cortocircuiti pericolosi. Antes de encender el sistema despues de sustituir una FRU, compruebe que todos los tornillos, muelles y dems piezas pequeas se encuentran en su sitio y no se encuentran sueltas dentro del sistema. Comprubelo agitando el sistema y escuchando los posibles ruidos que provocaran. Las piezas metlicas pueden causar cortocircuitos elctricos.

Introduction

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. Ne les dmontez pas, ne les rechargez pas, ne les exposez ni au feu ni leau. Ne les mettez pas en court- circuit. Pour les mettre au rebut, conformez-vous la rglementation en vigueur. Lorsque vous remplacez la pile de sauvegarde ou celle de lhorloge temps rel, veillez nutiliser que les modles cits dans la liste de pices dtaches adquate. Une batterie ou une pile inapproprie risque de prendre feu ou dexploser. Die Bereitschaftsbatterie, die sich unter dem Diskettenlaufwerk befindet, kann geringe Mengen Nickel und Cadmium enthalten. Sie darf nur durch die Verkaufsstelle oder den IBM Kundendienst ausgetauscht werden. Sie darf nicht zerlegt, wiederaufgeladen, kurzgeschlossen, oder Feuer oder Wasser ausgesetzt werden. Die Batterie kann schwere Verbrennungen oder Vertzungen verursachen. Bei der Entsorgung die rtlichen Bestimmungen fr Sondermll beachten. Beim Ersetzen der Bereitschafts-oder Systembatterie nur Batterien des Typs verwenden, der in der Ersatzteilliste aufgefhrt ist. Der Einsatz falscher Batterien kann zu Entzndung oder Explosion fhren. (continued)

ThinkPad A21e, A22e, i 1800 (MT 2655/2663/2664)

Safety notices

Continuation of Safety notice 2

DANGER:

Alcune batterie di riserva contengono una piccola quantit di nichel e cadmio. Non smontarle, ricaricarle, gettarle nel fuoco o nellacqua n cortocircuitarle. Smaltirle secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali). Quando si sostituisce la batteria dellRTC (real time clock) o la batteria di supporto, utilizzare soltanto i tipi inseriti nellappropriato Catalogo parti. Limpiego di una batteria non adatta potrebbe determinare lincendio o lesplosione della batteria stessa. Algunas bateras de reserva contienen una pequea cantidad de nquel y cadmio. No las desmonte, ni recargue, ni las eche al fuego o al agua ni las cortocircuite. Deschelas tal como dispone la normativa local. Utilice slo bateras que se encuentren en la lista de piezas. La utilizacin de una batera no apropiada puede provocar la ignicin o explosin de la misma.

Introduction

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 dmontez pas, ne lexposez ni au feu ni leau. Ne la mettez pas en court- circuit. Pour la mettre au rebut, conformez-vous la rglementation en vigueur. Lorsque vous remplacez la batterie, veillez nutiliser que les modles cits dans la liste de pices dtaches adquate. En effet, une batterie inapproprie risque de prendre feu ou dexploser. Akkus enthalten geringe Mengen von Nickel. Sie drfen nicht zerlegt, wiederaufgeladen, kurzgeschlossen, oder Feuer oder Wasser ausgesetzt werden. Bei der Entsorgung die rtlichen Bestimmungen fr Sondermll beachten. Beim Ersetzen der Batterie nur Batterien des Typs verwenden, der in der Ersatzteilliste aufgefhrt ist. Der Einsatz falscher Batterien kann zu Entzndung oder Explosion fhren. La batteria contiene piccole quantit di nichel. Non smontarla, gettarla nel fuoco o nellacqua n 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 nellappropriato Catalogo parti. Limpiego di una batteria non adatta potrebbe determinare lincendio o lesplosione della batteria stessa. Las bateras contienen pequeas cantidades de nquel. No las desmonte, ni recargue, ni las eche al fuego o al agua ni las cortocircuite. Deschelas tal como dispone la normativa local. Utilice slo bateras que se encuentren en la lista de piezas al sustituir la batera. La utilizacin de una batera no apropiada puede provocar la ignicin o explosin de la misma.

ThinkPad A21e, A22e, i 1800 (MT 2655/2663/2664)

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 100C (212F), 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 sauvegarde contient du lithium. Elle prsente des risques dincendie, dexplosion ou de brlures graves. Ne la rechargez pas, ne retirez pas son connecteur polaris et ne la dmontez pas. Ne lexposez pas une temperature suprieure 100C, ne la faites pas brler et nen exposez pas le contenu leau. Mettez la pile au rebut conformment la rglementation en vigueur. Une pile inapproprie risque de prendre feu ou dexploser. Die Systembatterie ist eine Lithiumbatterie. Sie kann sich entznden, explodieren oder schwere Verbrennungen hervorrufen. Batterien dieses Typs drfen nicht aufgeladen, zerlegt, ber 100 C erhitzt oder verbrannt werden. Auch darf ihr Inhalt nicht mit Wasser in Verbindung gebracht oder der zur richtigen Polung angebrachte Verbindungsstecker entfernt werden. Bei der Entsorgung die rtlichen Bestimmungen fr Sondermll beachten. Beim Ersetzen der Batterie nur Batterien des Typs verwenden, der in der Ersatzteilliste aufgefhrt ist. Der Einsatz falscher Batterien kann zu Entzndung oder Explosion fhren. (continued)

Introduction

Safety notices

Continuation of Safety notice 4

DANGER:

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). Limpiego di una batteria non adatta potrebbe determinare lincendio o lesplosione della batteria stessa. La batera de repuesto es una batera de litio y puede provocar incendios, explosiones o quemaduras graves. No la recargue, ni quite el conector polarizado, ni la desmonte, ni caliente por encima de los 100C (212F), ni la incinere ni exponga el contenido de sus celdas al agua. Deschela tal como dispone la normativa local.

ThinkPad A21e, A22e, i 1800 (MT 2655/2663/2664)

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 daffichage 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 mdecin si des symptmes persistent aprs le lavage. Die Leuchtstoffrhre im LCD-Bildschirm enthlt Quecksilber. Bei der Entsorgung die rtlichen Bestimmungen fr Sondermll beachten. Der LCD-Bildschirm besteht aus Glas und kann zerbrechen, wenn er unsachgem behandelt wird oder der Computer auf den Boden fllt. Wenn der Bildschirm beschdigt ist und die darin befindliche Flssigkeit in Kontakt mit Haut und Augen gert, sollten die betroffenen Stellen mindestens 15 Minuten mit Wasser abgesplt und bei Beschwerden anschlieend ein Arzt aufgesucht werden. Nel caso che caso lLCD si dovesse rompere ed il liquido in esso contenuto entrasse in contatto con gli occhi o le mani, lavare immediatamente le parti interessate con acqua corrente per almeno 15 minuti; poi consultare un medico se i sintomi dovessero permanere. Si la LCD se rompe y el fluido de su interior entra en contacto con sus ojos o sus manos, lave inmediatamente las reas afectadas con agua durante 15 minutos como mnimo. Obtenga atencin medica si se presenta algn sntoma del fluido despues de lavarse.

Introduction

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 dviter tout risque de choc lectrique, ne retirez pas le cache en plastique protgeant la partie infrieure de la carte dalimentation. Aus Sicherheitsgrnden die Kunststoffabdeckung, die den unteren Teil der Spannungswandlerplatine umgibt, nicht entfernen. Per evitare scosse elettriche, non rimuovere la copertura in plastica che avvolge la parte inferiore della scheda invertitore. Para evitar descargas, no quite la cubierta de plstico que rodea la parte baja de la tarjeta invertida.

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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 lev, le court-circuit ou la mise la masse dune batterie peut produire suffisamment de courant pour brler des matriaux combustibles ou causer des brlures corporelles graves. Obwohl Hauptbatterien eine niedrige Spannung haben, knnen sie doch bei Kurzschlu oder Erdung genug Strom abgeben, um brennbare Materialien zu entznden oder Verletzungen bei Personen hervorzurufen. Sebbene le batterie di alimentazione siano a basso voltaggio, una batteria in corto circuito o a massa pu fornire corrente sufficiente da bruciare materiali combustibili o provocare ustioni ai tecnici di manutenzione. Aunque las bateras principales tienen un voltaje bajo, una batera cortocircuitada o con contacto a tierra puede producir la corriente suficiente como para quemar material combustible o provocar quemaduras en el personal.

Introduction

11

Safety notices

Safety notice 8
DANGER:

Before removing any FRU, power off the computer, unplug all power cords from electrical outlets, remove the battery pack, and then disconnect any interconnecting cables. Avant de retirer une unit remplaable en clientle, mettez le systme hors tension, dbranchez tous les cordons dalimentation des socles de prise de courant, retirez la batterie et dconnectez tous les cordons dinterface. Die Stromzufuhr mu abgeschaltet, alle Stromkabel aus der Steckdose gezogen, der Akku entfernt und alle Verbindungskabel abgenommen sein, bevor eine FRU entfernt wird. Prima di rimuovere qualsiasi FRU, spegnere il sistema, scollegare dalle prese elettriche tutti i cavi di alimentazione, rimuovere la batteria e poi scollegare i cavi di interconnessione. Antes de quitar una FRU, apague el sistema, desenchufe todos los cables de las tomas de corriente elctrica, quite la batera y, a continuacin, desconecte cualquier cable de conexin entre dispositivos.

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Safety information

Safety information
The following section contains the safety information that you need to be familiar with before servicing an IBM mobile 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 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 your back. Do not attempt to lift any objects that weigh more than 16 kg (35 lb) or objects that you think are too heavy for you. v Do not perform any action that causes hazards to the customer, or that makes the equipment unsafe. v Before you start the machine, ensure that other service representatives and the customers personnel are not in a hazardous position. v Place removed covers and other parts in a safe place, away from all personnel, while you are servicing the machine. v Keep your toolcase away from walk areas so that other people will not trip over it. v Do not wear loose clothing that can be trapped in the moving parts of a machine. Make sure that your sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it. v Insert the ends of your necktie or scarf inside clothing or fasten it with a nonconductive clip, approximately 8 centimeters (3 inches) from the end. v Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing. Attention: Metal objects are good electrical conductors. v Wear safety glasses when you are hammering, drilling, soldering, cutting wire, attaching springs, using solvents, or working in any other conditions that might be hazardous to your eyes. v After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that is worn or defective. v Reinstall all covers correctly before returning the machine to the customer.

Introduction

13

Safety information

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 power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly. v Do not work alone under hazardous conditions or near equipment that has hazardous voltages. v Disconnect all power before: Performing a mechanical inspection Working near power supplies Removing or installing main units v Before you start to work on the machine, unplug the power cord. If you cannot unplug it, ask the customer to power-off the wall box that supplies power to the machine and to lock the wall box in the off position. v If you need to work on a machine that has exposed electrical circuits, observe the following precautions: Ensure that another person, familiar with the power-off controls, is near you. Attention: Another person must be there to switch off the power, if necessary. Use only one hand when working with powered-on electrical equipment; keep the other hand in your pocket or behind your back. Attention: An electrical shock can occur only when there is a complete circuit. By observing the above rule, you may prevent a current from passing through your body. When using testers, set the controls correctly and use the approved probe leads and accessories for that tester. Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as metal floor strips and machine frames. Observe the special safety precautions when you work with very high voltages; these instructions are in the

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Safety information

v v v v

safety sections of maintenance information. Use extreme care when measuring high voltages. Regularly inspect and maintain your electrical hand tools for safe operational condition. Do not use worn or broken tools and testers. Never assume that power has been disconnected from a circuit. First, check that it has been powered off. 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. 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. 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

and similar units. (This practice ensures correct grounding of the units.) v If an electrical accident occurs: Use caution; do not become a victim yourself. Switch off power. Send another person to get medical aid.

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 personnel from injury. This guide addresses only those items. You should use good judgment to identify potential safety hazards due to attachment of non-IBM features or options not covered by this inspection guide. 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 a bulging capacitor v Mechanical hazards, such as loose or missing hardware

Introduction

15

Safety information

To determine whether there are any potentially unsafe conditions, use the following checklist at the beginning of every service task. Begin the checks with the power off, and the power cord disconnected. Checklist: 1. Check exterior covers for damage (loose, broken, or sharp edges). 2. Power-off the computer. Disconnect the power cord. 3. Check the power cord for: a. A third-wire ground connector in good condition. Use a meter to measure third-wire ground continuity for 0.1 ohm or less between the external ground pin and frame ground. b. The power cord should be the type specified in the parts list. c. Insulation must not be frayed or worn. 4. Remove the cover. 5. Check for any obvious non-IBM alterations. Use good judgment as to the safety of any non-IBM alterations. 6. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage. 7. Check for worn, frayed, or pinched cables. 8. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with.

Handling electrostatic discharge-sensitive devices

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 requirements noted here. 2. Make sure that the ESD protective devices you use have been certified (ISO 9000) as fully effective. When handling ESD-sensitive parts: v Keep the parts in protective packages until they are inserted into the product. v Avoid contact with other people. v Wear a grounded wrist strap against your skin to eliminate static on your body.

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Safety information

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 protect against ESD damage. Attach the ESD ground clip to any frame ground, ground braid, or green-wire ground. Use an ESD common ground or reference point when working on a double-insulated or battery-operated system. You can use coax or connector-outside shells on these systems. Use the round ground-prong of the AC plug on AC-operated computers.

Grounding requirements
Electrical grounding of the computer is required for operator safety and correct system function. Proper grounding of the electrical outlet can be verified by a certified electrician.

Laser compliance statement

Some IBM Personal Computer models are equipped from the factory with an optical storage device; such as a CD-ROM drive or DVD-ROM drive. They are also sold separately as options. The drive is certified in the U.S. to conform to the requirements of the Department of Health and Human Services 21 Code of Federal Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. Elsewhere, the drive is certified to conform to the requirements of the International Electrotechnical Commission (IEC) 825 and CENELEC EN 60 825 for Class 1 laser products.

Introduction

17

Laser compliance statement

When a CD-ROM drive, DVD drive or the other laser product is installed, note the following:
CAUTION:

Use of controls or adjustments or performance of procedures other than those specified herein might result in hazardous radiation exposure. O uso de controles, ajustes ou desempenho de procedimentos diferentes daqueles aqui especificados pode resultar em perigosa exposio radiao.

Pour viter tout risque dexposition au rayon laser, respectez les consignes de rglage et dutilisation des commandes, ainsi que les procdures dcrites. Werden Steuer- und Einstellelemente anders als hier festgesetzt verwendet, kann gefhrliche Laserstrahlung auftreten.

Lutilizzo di controlli, regolazioni o lesecuzione di procedure diverse da quelle specificate possono provocare lesposizione a.

El uso de controles o ajustes o la ejecucin de procedimientos distintos de los aqu especificados puede provocar la exposicin a radiaciones peligrosas.

Opening the CD-ROM drive, DVD-ROM drive or the other optical storage device could result in exposure to hazardous laser radiation. There are no serviceable parts inside those drives. Do not open.

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Laser compliance statement

Some CD-ROM drives, DVD-ROM drives or the other optical storage devices contain an embedded Class 3A or Class 3B laser diode. Note the following:
DANGER:

Emits visible and invisible laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam. Radiao por raio laser ao abrir. No olhe fixo no feixe de luz, no olhe diretamente por meio de instrumentos ticos e evite exposio direta com o feixe de luz.

Rayonnement laser si carter ouvert. vitez de fixer le faisceau, de le regarder directement avec des instruments optiques, ou de vous exposer au rayon. Laserstrahlung bei geffnetem Gert. Nicht direkt oder ber optische Instrumente in den Laserstrahl sehen und den Strahlungsbereich meiden. Kinyitskor lzersugr ! Ne nzzen bele se szabad szemmel, se optikai eszkzkkel. Kerlje a sugrnyalbbal val rintkezst ! Aprendo lunit vengono emesse radiazioni laser. Non fissare il fascio, non guardarlo direttamente con strumenti ottici e evitare lesposizione diretta al fascio.

Radiacin lser al abrir. No mire fijamente ni examine con instrumental ptico el haz de luz. Evite la exposicin directa al haz.

Introduction

19

Laser compliance statement

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ThinkPad A21e, A22e, i 1800 (MT 2655/2663/2664)

General descriptions
This chapter includes descriptions for any ThinkPad model that has the PC-Doctor DOS diagnostics program. Some descriptions might not apply to your particular computer.

Read this first

Before you go to the checkout guide, be sure to read this section.

Important notes v Only certified trained personnel should service the computer. v Read the entire FRU removal and replacement page before replacing any FRU. v Use new nylon-coated screws when you replace FRUs. v Be extremely careful during such write operations as copying, saving, or formatting. Start sequence of drives in the computer that you are servicing might have been altered. If you select an incorrect drive, data or programs might be overwritten. v Replace FRUs only for the correct model. When you replace a FRU, make sure the model of the machine and the FRU part number are correct by referring to the FRU parts list. v A FRU should not be replaced because of a single, unreproducible failure. Single failures can occur for a variety of reasons that have nothing to do with a hardware defect, such as cosmic radiation, electrostatic discharge, or software errors. Consider replacing a FRU only when a problem recurs. If you suspect that a FRU is defective, clear the error log and run the test again. If the error does not recur, do not replace the FRU. v Be careful not to replace a nondefective FRU.

What to do first:
When you do return a FRU, you must include the following information in the parts exchange form or parts return form that you attach to it: __ 1. Name and phone number of servicer __ 2. Date of service __ 3. Date on which the machine failed __ 4. Date of purchase __ 5. Failure symptoms, error codes appearing on the display, and beep symptoms

21

Read this first

__ 6. Procedure index and page number in which the failing FRU was detected __ 7. Failing FRU name and part number __ 8. Machine type, model number, and serial number __ 9. Customers name and address Note for warranty: During the warranty period, the customer may be responsible for repair costs if the computer damage was caused by misuse, accident, modification, unsuitable physical or operating environment, or improper maintenance by the customer. The following list provides some common items that are not covered under warranty and some symptoms that might indicate that the system was subjected to stress beyond normal use. Before checking problems with the computer, determine whether the damage is covered under the warranty by referring to the following: The following are not covered under warranty: v LCD panel cracked from the application of excessive force or from being dropped v Scratched (cosmetic) parts v Distortion, deformation or discoloration of the cosmetic parts v Cracked or broken plastic parts, broken latches, broken pins, or broken connectors caused by excessive force v Damage caused by liquid spilled into the system v Damage caused by the improper insertion of a PC Card or the installation of an incompatible card v Damage caused by foreign material in the diskette drive v Diskette drive damage caused by pressure on the diskette drive cover or by the insertion of a diskette with multiple labels v Damaged or bent diskette eject button v Fuses blown by attachment of a nonsupported device v Forgotten computer password (making the computer unusable) v Sticky keys caused by spilling a liquid onto the keyboard The following symptoms might indicate damage caused by nonwarranted activities: v Missing parts might be a symptom of unauthorized service or modification. v If the spindle of a hard disk drive becomes noisy, it may have been subjected to excessive force, or dropped.

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Related service information

Related service information

This section provides information about the following: v Service Web site v Product recovery program v Passwords on page 25 v Power management on page 28

Service Web site

When the latest maintenance diskette and the system program service diskette are available, a notice will be posted on http://www.pc.ibm.com/partner/infotips/

Product recovery program

Restoring the pre-installed software:
To restore the pre-installed software, you can use either the Product Recovery program or a Recovery CD. The Product Recovery program is in a section of the hard-disk drive (the Service Partition) that is not displayed by Windows Explorer. Use the Recovery CD if it was provided with the computer. Note: The recovery process might take up to 2 hours. To use the Product Recovery program to restore the pre-installed software, do the following: 1. Save all files and shut down the desktop. 2. Turn off the computer. 3. Turn on the computer. Quickly press F11 when this message is displayed on the screen: .....To start the Product Recovery program, press F11..... This message is displayed for only a few seconds. Note: If this message does not appear, you can use a Recovery Repair diskette to get access to the Product Recovery program. (For making the Recovery Repair diskette, see To create a recovery repair diskette: on page 24.) 4. From the list displayed on the screen, select the operating system you want to recover. 5. Select the recovery options you want, and follow the instructions on the screen.

Creating the service partition:

To create Service Partition and install the preloaded system from Recovery CD, do the following: To create Service Partition (SP): 1. Erase all partitions on the hard-disk drive using FDISK or similar application. 2. Boot with Recovery CD (and boot diskette if required). General descriptions

23

Related service information

3. A menu will appear stating Your computer originally included a Product Recovery program ... Reinstall the Product Recovery Program? (Y/N) [ ]. Note: If the hard-disk drive contains any partitions, you will not receive this menu go to step 1. 4. Enter Y and Service Partition will be created and loaded with D2D files. Note: If you do not want to create Service Partition, press N, and then go to step 8. 5. Press ENTER at next window to continue. v Service Partition will be created. System will automatically reboot during this precess. v Recovery process will copy some files to the Service Partition, PKUNZIP others. v Follow prompts you may be prompted to change CDs. v System will reboot when complete, continue to step 6 to install preloaded system. Install preloaded system from CD: 6. Boot with Recovery CD (and boot diskette if required.) 7. If the hard-disk drive is blank, a menu will appear stating Your computer originally included a Product Recovery program ... Reinstall the Product Recovery Program? (Y/N) [ ]. v To install Service Partition, go to step 4. v To preload hard-disk drive without installing Service Partition, press N. 8. If a menu appears asking which operating system to install, highlight proper operating system and press ENTER. 9. A menu will appear stating Full Recovery:. Press ENTER to select. 10. Enter Y at the three windows which follow. 11. Follow prompts to complete Recovery.

To create a recovery repair diskette:

The Recovery Repair diskette is used to recover the prompt that is needed to access the Product Recovery program, if the prompt does not appear. Make a Recovery Repair diskette and save it for future use. To make a Recovery Repair diskette: 1. Shut down and turn off the computer. 2. Attach the external diskette drive to the computer. 3. At the prompt, press F11. (The option to press F11 appears for only a few seconds. You must press F11 quickly.) The Product Recovery program main menu appears.

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Related service information

4. If you are using Windows 2000 Professional, you will be prompted to select the appropriate operating system setting. This menu does not appear for Windows 98 SE. 5. Select System Utilities from the main menu. Press Enter. 6. Select Create a Recovery Repair diskette. Press Enter. 7. Follow the on-screen instructions. 8. When the process is completed, label the diskette as the Recovery Repair diskette and save it for future use.

To use the recovery repair diskette:

1. Shut down and turn off the computer. 2. Attach the external diskette drive to the computer. 3. Insert the Recovery Repair diskette into the drive; then turn on the computer. 4. Follow the on-screen instructions.

Passwords
As many as three passwords may be needed for any ThinkPad computer: the power-on password (POP), the hard-disk password (HDP), and the supervisor password (SVP). Exception: If only SVP is installed, the password prompt doesnt appear when the operating system is booted. When any of these passwords is used, a password prompt appears on the screen whenever the computer is turned on. The computer does not start until the password is entered.

Power-on password:
A power-on password (POP) protects the system from being powered on by an unauthorized person. The password must be entered before an operating system can be booted.

Hard-disk password:
There are two hard-disk passwords (HDPs): v User HDPfor the user v Master HDPfor the system administrator, who can use it to get access to the hard disk even if the user has changed the user HDP Note: There are two modes for the HDP: User only and Master + User. The Master + User mode requires two HDPs and is designed for the system administrator to input both in the same operation. The system administrator then provides the user HDP to the system user.

General descriptions

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Related service information

Attention If the user HDP is forgotten, check to see if a master HDP was set. If a master HDP was set and can be recalled, this will allow access to the hard-disk drive. If no master HDP is available, IBM does not provide any services to reset either the user or the master HDP nor recover data from the hard-disk drive. The hard-disk drive can be replaced for a scheduled fee.

Supervisor password:
A supervisor password (SVP) protects the system information stored in the IBM BIOS Setup Utility. The SVP must be entered in order to access the IBM BIOS Setup Utility and make changes to system configuration settings.

Attention If the SVP has been forgotten and cannot be made available to the servicer, there is no service procedure to reset the password. The system board must be replaced for a scheduled fee.

How to remove the power-on password

To remove a POP that you have forgotten, do the following: (A) If SVP is not installed: 1. Turn off the computer. 2. Remove the battery pack. For how to remove the battery pack, see 1010 Battery pack on page 57. 3. Remove the backup battery. For how to remove the backup battery, see 1020 Backup battery on page 58. 4. Turn on the computer and wait until the POST ends. After the POST ends, the password prompt does not appear. The POP has been removed. 5. Reinstall the backup battery and the battery pack. (B) If SVP is installed and known by the servicer: 1. Turn on the computer by pressing and holding F1. 2. Enter the SVP. The IBM BIOS Setup Utility menu appears. 3. Select Password, using the cursor keys to move down the menu. 4. Select Power-On Password. 5. Enter the SVP, at the Enter Current Password field.

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Related service information

6. When the Enter New Password field opens, leave it blank and press Enter twice. 7. Press Enter in the Changes have been saved window. 8. Press F10; then select Yes in the Setup confirmation window.

How to remove the hard-disk password

Attention If User only mode is selected and the user HDP is forgotten and cannot be made available to the servicer, IBM does not provide any services to reset the user HDPs nor recover data from the hard-disk drive. The hard-disk drive can be replaced for a scheduled fee. To remove the user HDP that has been forgotten, when the SVP and master HDP is known, do the following: 1. Power on the computer by pressing and holding F1. 2. Enter the SVP. The IBM BIOS Setup Utility menu appears. 3. Select Password, using the cursor keys to move down the menu. 4. Select Hard-disk x password, where x is the letter of the hard-disk drive. A pop-up window opens. 5. Select either User HDP or Master HDP. 6. Enter the master HDP; then leave the New Password field blank and press Enter twice. 7. Press F10. 8. Select Yes in the Setup Configuration window. Both user HDP and master HDP will have been removed.

General descriptions

27

Related service information

Power management
To reduce power consumption, the computer has three power management modes: screen blank, standby, and hibernation.

Notes v Screen blank mode is called standby mode in Windows 95 and Windows NT. v Standby mode is called suspend mode in Windows 95 and Windows NT.

Screen blank mode

Screen blank mode has three variants, as follows: 1. If you press Fn + F3, or the time set on the LCD off timer in IBM BIOS Setup Utility expires, v The LCD backlight turns off. v The hard-disk drive motor stops. v The speaker is muted. 2. If you are using the ACPI operating system and you press Fn + F3, v The LCD backlight turns off. v The hard-disk drive motor stops. 3. If the time set on the Turn off monitor timer in the operating system expires, v The LCD backlight turns off. To end screen blank mode and resume normal operation, press any key.

Standby mode
When the computer enters standby mode, the following events occur in addition to what occurs in screen blank mode: v The LCD is powered off. v The hard-disk drive motor stops in models listed below. A21e series MT2655-21x, 22x, 23x, 31x, 32x, 33x, 41x, 42x, 43x, 71x, 72x, 73x, 81x, 82x, 83x, 91x, 92x, 93x, B2x, B4x A22e series MT2655-25x, 26x, 27x, 35x, 36x, 37x, 75x, 76x, 77x, 85x, 86x, 87x, MT2663-77x,, MT2664-77x i 1800 series MT2655-P3J v The hard-disk drive is powered off in models listed below. A22e series MT2655-45x, 46x, 47x, 55x, 56x, 57x, 65x, 66x, 67x, 95x, 96x, 97x, A5x, A6x, A7x, B5x, B6x, B7x

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Related service information

i 1800 series MT2655-P7J, PAJ v The CPU stops. To enter standby mode, press Fn + F4. Note: You can change the action of Fn + F4, if you are using the ACPI operating system. In certain circumstances, the computer goes into standby mode automatically: v If a suspend time has been set on the timer, and the user does not do any operation with the keyboard, the TrackPoint, the hard disk, the parallel connector, or the diskette drive within that time. v If the battery indicator blinks orange, indicating that the battery power is low. (Alternatively, if Hibernate when battery becomes low has been selected in the Power Management Properties window, the computer goes into hibernation mode.) Note for the APM operating system: Even if you dont set the low-battery alarm, the charge indicator notifies you when the battery is low, and then the computer enters the power-saving mode automatically. This default low-battery behavior is independent of the operating system; so if you have set the low-battery alarm, the computer may not do what you specified. It chooses either your setting or the default setting, whichever is appropriate. If you are using the ACPI operating system, only the low-battery alarm is available. To cause the computer to return from standby mode and resume operation, do one of the following: v Press the Fn key. v Open the LCD cover (only if you are using Windows Me and you entered standby mode by closing the LCD cover). v Turn on the power switch. Also, the computer automatically returns from standby mode and resumes operation in either of the following events: v The ring indicator (RI) is signaled by a serial device or a PC Card device (Windows 2000 does not support ring indicator (RI) resume by PC Card device.) v The time set on the resume timer elapses. In Windows 98, the Scheduled Tasks setting takes priority over the Resume on timer selection in the Power Management Properties window.

General descriptions

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Related service information

Note: The computer does not accept any input immediately after it enters standby mode. Wait a few seconds before taking any action to reenter operation mode.

Hibernation mode
Note for Windows NT If you are using Windows NT in the default format, NTFS, you cannot create a hibernation file. If you want to use hibernation mode, you will need to reinstall Windows NT with FAT format. In hibernation mode, the following occurs: v The system status, RAM, VRAM, and setup data are stored on the hard disk. v The system is powered off. Note for the APM operating system If you are running the computer on ac power and using a communication PC Card, the computer cannot enter hibernation mode. To cause the computer to enter hibernation mode, do any of the following: v Press the Fn + F12 keys. v If you are using the APM operating system and have set the mode to Power switch mode [Hibernation], turn off the power switch. Also, the computer automatically goes into hibernation mode in either of the following conditions: v If you are using an operating system other than Windows 98 and the timer conditions are satisfied in suspend mode. v If you are using the APM operating system and have set the mode to Hibernate when battery becomes low, and the battery charge becomes critically low. Note: If you are using the ACPI operating system, you can define closing the lid, pressing the Power button and pressing Fn + F4 as events that cause the system to go into hibernation mode. When the power is turned on, the computer returns from hibernation mode and resumes operation. The hibernation file in the boot record on the hard-disk drive is read, and system status is restored from the hard-disk drive.

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Checkout guide

Checkout guide
Use the following procedures as a guide in identifying and correcting problems with the ThinkPad computer. Note: The diagnostic tests are intended to test only IBM products. The use of non-IBM products, prototype cards, or modified options can lead to false indications of errors and invalid system responses. 1. Identify the failing symptoms in as much detail as possible. 2. Verify the symptoms. Try to re-create the failure by running the diagnostic test or by repeating the operation.

Testing the computer

The ThinkPad computer has a test program called PC-Doctor DOS (hereafter called PC-Doctor). You can detect errors by running the diagnostics test included in PC-Doctor. This section is an overview of the procedure. For details that depend on model-unique functions, refer to Product overview on page 39. For some possible configurations of the computer, PC-Doctor might not run correctly. To avoid this problem, you need to initialize the computer setup by use of the IBM BIOS Setup Utility before you run PC-Doctor. On the IBM BIOS Setup Utility screen, press F9, Enter, F10, and then Enter. Note: When you initialize the computer configuration, some devices are disabled, such as the serial port. If you test one of these devices, you will need to enable it by using PS2.EXE. PC-Doctor cannot be used to test a device that is in the docking station, even if the computer supports the docking station. To test a USB device, connect it to the USB connector of the computer. To test the Ultrabay 2000 device, install it in the Ultrabay 2000 slot of the computer. To run the test, do as follows: Note: In the following procedure, you can select an item not only with the arrow keys, but also with the TrackPoint. Instead of pressing Enter, click the left button. 1. Insert the PC-Doctor disk into the diskette drive; then power on the computer. If the computer cannot be powered on, go to Power system checkout on page 34, and check the power sources. General descriptions

31

Checkout guide

If an error code appears, go to Symptom-to-FRU index on page 46. On the first screen, select the model and press Enter. Follow the instructions on the screen. 2. The main panel of PC-Doctor appears. 3. Select Diagnostics with the arrow keys, and press Enter. A pull-down menu appears. (Its exact form depends on the model.) The options on the test menu are as follows: Diagnostics v v v v v v v v v v v v v v v Run Normal Test Run Quick Test CPU/Coprocessor Systemboard Video Adapter Serial Ports Parallel Ports Fixed Disks Diskette Drives Other Devices ZIP Drive (*) LS-120 Drive (*) Communication Memory Test Full Memory Test Quick Interactive Tests v v v v v v v v v Keyboard Video Internal Speaker Mouse Joystick Test Diskette System Load CD-ROM/DVD Test Stereo Speaker

Notes: v In the Keyboard test in Interactive Tests, the Fn key is scanned only once. Each key should be held down for at least 2 seconds; otherwise, it cannot be sensed. v On some models, the sound card is not recognized in the Stereo Speaker in the Interactive Tests. To test it, use the audio device test in the Other Devices in the Diagnostics. v Video Adapter test supports only the LCD display on ThinkPad. Before running PC-Doctor DOS, detach the external monitor. v To test ZIP Drive or LS-120 Drive, each media is needed to be inserted before start testing.

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Checkout guide
Diagnostics I n t e r a c t i v e Te s t s Hardware Info Utility Quit F1=Help

Run Normal Test Run Quick Test CPU/Coprocessor Systemboard Video Adapter Serial Ports Parallel Ports Fixed Disks Diskette Drives Other Devices ZIP Drive Communication Memory Test - Full Memory Test - Quick

PC-DOCTOR 2.0 Copyright 2000 PC-Doctor, Inc. All Rights Reserved.

Use the cursor keys and ESC to move in menus. Press ENTER to select.

4. Run the applicable function test. 5. Follow the instructions on the screen. If there is a problem, PC-Doctor shows messages describing it. 6. To exit the test, select Quit Exit Diag. To cancel the test, press Esc. Note: After executing PC-Doctor, check the system time/date and reset them if needed.

Detecting system information with PC-Doctor

PC-Doctor can detect the following system information:

Hardware Info
v v v v v v v v v v System Configuration Memory Contents Physical Disk Drives Logical Disk Drives VGA Information IDE Drive Info PCI Information PNPISA Info SMBIOS Info VESA LCD Info

Utility
v v v v v v v v v v v Run External Tests Surface Scan Hard Disk Benchmark System DOS Shell Tech Support Form Battery Rundown View Test Log Print Log Save Log Full Erase Hard Drive Quick Erase Hard Drive

General descriptions

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Checkout guide

Power system checkout

To 1. 2. 3. 4. verify a symptom, do the following: Power off the computer. Remove the battery pack. Connect the ac adapter. Check that power is supplied when you power on the computer. 5. Power off the computer. 6. Disconnect the ac adapter and install the charged battery pack. 7. Check that the battery pack supplies power when you power on the computer. If you suspect a power problem, see the appropriate one of the following power supply checkouts: v Checking the ac adapter v Checking operational charging on page 35 v Checking the battery pack on page 35 v Checking the backup battery on page 36

Checking the ac adapter

You are here because the computer fails only when the ac adapter is used: v If the power problem occurs only when the port replicator is used, replace the port replicator. v If the power-on indicator does not turn on, check the power cord of the ac adapter for correct continuity and installation. v If the computer does not charge during operation, go to Checking operational charging. To check the ac adapter, do the following: 1. Unplug the ac adapter cable from the computer. 2. Measure the output voltage at the plug of the ac adapter cable. See the following figure:

Pin 1

Voltage (V dc) +15.5 to +17.0 Ground

2 1

v If the voltage is not correct, replace the ac adapter. v If the voltage is acceptable, do the following: Replace the system board. If the problem persists, go to Product overview on page 39. Note: Noise from the ac adapter does not always indicate a defect.

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Checkout guide

Checking operational charging

To check whether the battery charges properly during operation, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer. Perform operational charging. If the battery status indicator or icon does not turn on, remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator or icon still does not turn on, replace the battery pack. If the charge indicator still does not turn on, replace the system board. Then reinstall the battery pack. If it is still not charged, go to the next section.

Checking the battery pack

Battery charging does not start until the Power Meter shows that less than 95% of the total power remains; under this condition the battery pack can charge to 100% of its capacity. This protects the battery pack from being overcharged or from having a shortened life. To check the status of your battery, move your cursor to the Power Meter icon in the icon tray of the Windows taskbar and wait for a moment (but do not click), and the percentage of battery power remaining is displayed. To get detailed information about the battery, double-click the Power Meter icon. Note: If the battery pack becomes hot, it may not be able to charge. Remove it from the computer and leave it at room temperature for a while. After it cools down, reinstall and recharge it. To check the battery pack, do the following: 1. Power off the computer. 2. Remove the battery pack and measure the voltage between battery terminals 1 (+) and 5 (). See the following figure:

Terminal

Voltage (V dc) + 0 to + 12.6 Ground ()

5(-) 4

1(+)

1 5

3. for Lithium ion battery; v If the voltage is less than +11.0 V dc, the battery pack has been discharged.

General descriptions

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Checkout guide

Note: Recharging will take at least 3 hours, even if the indicator does not turn on. If the voltage is still less than +11.0 V dc after recharging, replace the battery. for Nickel metal hydride battery; v If the voltage is less than +8.0 V dc, the battery pack has been discharged. Note: Recharging will take at least 3 hours, even if the indicator does not turn on. If the voltage is still less than +8.0 V dc after recharging, replace the battery. 4. for Lithium ion battery; v If the voltage is more than +11.0 V dc, measure the resistance between battery terminals 4 and 5. The resistance must be 4 to 30 K ohm. for Nickel metal hydride battery; v If the voltage is more than +8.0 V dc, measure the resistance between battery terminals 4 and 5. The resistance must be 4 to 30 K ohm. If the resistance is not correct, replace the battery pack. If the resistance is correct, replace the system board.

Checking the backup battery

Do the following: 1. Power off the computer, and unplug the ac adapter from it. 2. Turn the computer upside down. 3. Remove the battery pack (see 1010 Battery pack on page 57). 4. Remove the backup battery (see Checking the battery pack on page 35). 5. Measure the voltage of the backup battery. See the following figure.

Red (+)

Wire Red

Voltage (V dc) +2.5 to +3.2 Ground

Black (-)

Black

v If the voltage is correct, replace the system board. v If the voltage is not correct, replace the backup battery. v If the backup battery discharges quickly after replacement, replace the system board.

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ThinkPad A21e, A22e, i 1800

Product overview . . . . . . . . . . . Specifications . . . . . . . . . . . Status indicators . . . . . . . . . . FRU Tests . . . . . . . . . . . . Fn key combinations . . . . . . . . . Symptom-to-FRU index . . . . . . . . . Numeric error codes . . . . . . . . . Error messages . . . . . . . . . . Beep symptoms . . . . . . . . . . No beep symptoms . . . . . . . . . LCD-related symptoms . . . . . . . . Intermittent problems . . . . . . . . . Undetermined problems . . . . . . . . FRU replacement notices . . . . . . . . Screw notices . . . . . . . . . . . Retaining serial numbers. . . . . . . . Restoring the serial number of the system unit Retaining the UUID . . . . . . . . Removing and replacing a FRU. . . . . . . 1010 Battery pack. . . . . . . . . . 1020 Backup battery . . . . . . . . . 1030 Hard-disk drive . . . . . . . . . 1040 DIMM . . . . . . . . . . . 1050 Mini PCI adapter . . . . . . . . 1060 Ultrabay 2000 device . . . . . . . 1070 Keyboard . . . . . . . . . . 1080 Keyboard CRU insulator . . . . . . 1090 Fan assembly . . . . . . . . . For models excepting MT2655-65x, 66x, 67x, B5x, B6x, B7x . . . . . . . . . For MT2655-65x, 66x, 67x, B5x, B6x, B7x . 1100 CPU . . . . . . . . . . . . 1110 PC Card slot assembly . . . . . . 1120 Hinge cover . . . . . . . . . . 1130 Keyboard bezel . . . . . . . . . 1140 Speaker . . . . . . . . . . . For A21e series . . . . . . . . . For A22e and i 1800 series . . . . . . 1150 Hard-disk bay . . . . . . . . . 1160 LED connector card . . . . . . . 1170 Ultrabay 2000 slot . . . . . . . . 1180 System board . . . . . . . . . 2010 LCD assembly . . . . . . . . . 2020 Front bezel. . . . . . . . . . 12.1-in. LCD (only for A21e series) . . . 13.3-in. and 14.1-in. LCD . . . . . . 2030 Inverter card . . . . . . . . . 12.1-in. LCD (only for A21e series) . . . 13.3-in. and 14.1-in. LCD . . . . . . 2040 LCD panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 39 41 43 44 46 46 49 50 50 51 52 52 53 53 54 54 54 56 57 58 60 62 63 66 67 72 73

. 73 . 75 . 77 . 79 . 81 . 83 . 86 . 86 . 87 . 89 . 91 . 93 . 96 . 98 . 104 . 104 . 105 . 106 . 106 . 107 . 108

37

12.1-in. LCD (only for A21e series) . . 13.3-in. and 14.1-in. LCD . . . . . 2050 Sub card . . . . . . . . . Locations . . . . . . . . . . . . Front view. . . . . . . . . . . Rear view . . . . . . . . . . . Bottom view . . . . . . . . . . Parts list . . . . . . . . . . . . A21e, A22e and i 1800 model matrix . . . Overall . . . . . . . . . . . LCD FRUs . . . . . . . . . . 12.1-in. SVGA TFT (only for A21e) . . 13.3-in. XGA TFT . . . . . . . 14.1-in. XGA TFT . . . . . . . Keyboard . . . . . . . . . . . Recovery CDs for i 1800 series . . . . For Windows Me models . . . . . Recovery CDs for A22e series. . . . . For Windows 98 models . . . . . For Windows 2000 models . . . . . For Windows 2000/Windows NT models Miscellaneous parts . . . . . . . . Optional FRUs . . . . . . . . . Common parts list . . . . . . . . Tools . . . . . . . . . . . Power cords (system) . . . . . . Notices . . . . . . . . . . . . Trademarks . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . .

108 110 113 115 115 116 117 118 118 121 125 125 126 127 128 129 129 129 129 130 130 131 135 136 136 136 137 137

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Product overview

Product overview
This section presents the following product-unique information: v Specifications v Status indicators on page 41 v FRU Tests on page 43 v Fn key combinations on page 44

Specifications
The following table lists the specifications of the ThinkPad A21e, A22e and i 1800:
Feature Processor Description A21e v Intel Celeron processor 650 MHz v Intel Celeron processor 700 MHz A22e v Intel Celeron processor 800 MHz v Intel mobile Pentium III processor 850 MHz featuring Intel SpeedStep technology v Intel mobile Pentium III processor 900 MHz featuring Intel SpeedStep technology i 1800 v Intel Celeron processor 750 MHz v Intel mobile Pentium III processor 750 MHz featuring Intel SpeedStep technology Bus architecture Memory (standard) PCI Bus A21e, A22e v 64 MB (SO-DIMM 2) i 1800 v 128 MB (SO-DIMM 2) Memory (optional) A21e v 64 MB or 128 MB DIMM card (maximum of 256 MB) A22e, i 1800 v 64 MB or 128 MB DIMM card (maximum of 256 MB) v 64 MB, 128 MB or 256 MB DIMM card (maximum of 512 MB) CMOS RAM 242 bytes

(continued)

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Product overview Feature Display Description A21e v 12.1-inch, 16M colors, SVGA (800600 resolution) TFT color LCD v 13.3-inch, 16M colors, XGA (1024768 resolution) TFT color LCD v 14.1-inch, 16M colors, XGA (1024768 resolution) TFT color LCD A22e v 13.3-inch, 16M colors, XGA (1024768 resolution) TFT color LCD v 14.1-inch, 16M colors, XGA (1024768 resolution) TFT color LCD i 1800 v 14.1-inch, 16M colors, XGA (1024768 resolution) TFT color LCD Hard-disk drive A21e v 20.0 GB, 2.5-inch, IDE interface A22e v 15.0 GB, 2.5-inch, IDE interface v 20.0 GB, 2.5-inch, IDE interface v 30.0 GB, 2.5-inch, IDE interface i 1800 v 20.0 GB, 2.5-inch, IDE interface v 30.0 GB, 2.5-inch, IDE interface I/O port v v v v v v v v v v External monitor Line-in Headphone Microphone Parallel or diskette drive Port replicator connector Serial Universal serial bus (USB) connector RJ11 RJ45

Internal modem Audio PC Card AC adapter Bay device

56.6 Kbps v Internal speaker v Software control volume v One Type-III or one Type-II v One Type-III or two Type-II 72-watt type A21e v 10-24x CD-ROM drive A22e v 10-24x CD-ROM drive v 8x DVD-ROM drive i 1800 v 8x/4x/24x CD-RW drive v 8x/4x/24x/8x CD-RW/DVD drive

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Product overview

Status indicators
The system status indicators show the status of the computer, as follows:

Indicator 1 Drive in use

Meaning Green: Data is being read from or written to the storage device, such as the hard disk drive or a drive in the Ultrabay 2000. When this indicator is on, do not put the computer into standby mode or turn off the computer.

Note: Do not move the system while the Green drive in use light is on. Sudden physical shock could cause drive errors. 2 Num lock Green: The numeric keypad on the keyboard is enabled. To enable or disable the keypad, press and hold the Shift key, and then press the NumLk (ScrLk) key. If the numeric keypad is enabled, press and hold Shift key to use the cursor- and screen-control keys temporarily. Caps Lock mode is enabled. To enable or disable Caps Lock mode, press Fn + Caps Lock key.

3 Caps lock

Green:

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Product overview Indicator 4 Scroll lock Meaning Green: Scroll Lock mode is enabled. The Arrow keys can be used as screen-scroll function keys. The cursor cannot be moved with the Arrow keys. Not all application programs support this function. To enable or disable Scroll Lock mode, press the ScrLk key. The computer is on and ready to use. In some models, this indicator stays lighted even when the computer is in the standby mode. For A21e series and the low-end models of A22e, if the power-on indicator is on and the standby indicator is off, the system is ready to use. For the high-end models of A22e, if the power-on indicator is off and the standby indicator is on, the system is ready to use.

5 Power on

Green:

6 Battery

Green: The battery is fully charged. Blinking green: The battery has enough power to operate, but is being charged. Orange: The battery power is low. The battery is to being charged. Blinking orange: The battery needs to be charged. when the indicator starts blinking orange, the computer beeps three times. Green: The computer is in standby mode. Blinking green: The computer is entering standby mode or hibernation mode, or is resuming normal operation. This indicator does not blink in Windows 98, Windows 2000 and Windows Me.

7 Standby status

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Product overview

FRU Tests
The following table shows the test for each FRU.
FRU System board Power LCD unit Modem Applicable test 1. Diagnostics --> CPU/Coprocessor 2. Diagnostics --> Systemboard Diagnostics --> Other Devices --> IBM AC Adapter, IBM Battery 1 1. Diagnostics --> Video Adapter 2. Interactive Tests --> Video 1. Make sure the modem is set up correctly. 2. Replace the modem jack and the modem card in turn, and run the following tests in Diagnostics --> Communication: a. Lucent Modem (M2) Loopback b. Lucent Modem (M2) Dialtone/DTM c. Intel Modem Register d. Intel Modem Loopback/DTMF e. Intel SP Modem Register f. Intel SP Modem Loopback/DTMF g. 3Com MiniPCI Modem Test h. 3Com MiniPCI Dialtone Test 1. Interactive Tests --> Internal Speaker 2. Interactive Tests --> Stereo Speaker (Celeron model only) 3. Diagnostics --> Other Devices --> Crystal SoundFusion Test 1. Interactive Tests --> Internal Speaker 2. Interactive Tests --> Stereo Speaker (Celeron model only) Diagnostics --> Systemboard --> PCMCIA, PCMCIA External Loop 1. Diagnostics --> Systemboard --> Keyboard 2. Interactive Tests --> Keyboard If the TrackPoint does not work, check the configuration in the ThinkPad Configuration program. If the TrackPoint is disabled, select Enable to enable it. After you use the TrackPoint, the pointer may drift on the screen for a short time. This drift can occur when a slight, steady pressure is applied to the TrackPoint pointer. This symptom is not a hardware problem. If the pointer stops after a short time, no service action is necessary. If enabling the TrackPoint does not correct the problem, continue with the following: v Interactive Tests --> Mouse Hard-disk drive Diagnostics --> Fixed Disks

Audio

Speaker

PC Card slots Keyboard

TrackPoint or pointing device

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Product overview FRU Diskette drive CD-ROM or DVD drive Memory Applicable test 1. Diagnostics --> Diskette Drives 2. Interactive Tests --> Diskette 1. Diagnostics --> Other Devices --> CD-ROM/DVD 2. Interactive Tests --> CD-ROM/DVD Test 1. If two DIMMs are installed, remove one of them and run Diagnostics --> Memory Test - Quick. 2. If the problem does not recur, return the DIMM to its place, remove the other one, and run the test again. 3. If the test does not detect the error, run Diagnostics --> Memory Test - Full. 1. Turn on the computer and check the air turbulence at the louver near the power switch. 2. Run Diagnostics --> Other Devices --> IBM Fan.

Fan

Fn key combinations
The following table shows the function of each combination of Fn with a function key. The Fn key works independently from the operating system.
Key combination Fn + F1 Fn + F2 Fn + F3 Description Reserved. Reserved. Turn off the computer display, leaving the screen blank. To turn the computer display on again, press any key or the TrackPoint stick. Turn standby mode on. To return to normal operation, press the Fn key independently, without pressing a function key. Notes: 1. This mode is called suspend mode in Windows 95 and Windows NT. 2. In Windows 2000, this combination of buttons functions as a sleep button. You can change the settings so that pressing it puts the computer into hibernation mode or even shut the computer down. Fn + F5 Fn + F6 Reserved. Reserved.

Fn + F4

(continued)

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ThinkPad A21e, A22e, i 1800 (MT 2655/2663/2664)

Product overview Key combination Fn + F7 Description Switch between the computer display and an external monitor. If an external monitor is attached, computer output is displayed in the following three patterns by turns: v External monitor (CRT) v Computer display and external monitor (LCD + CRT) v Computer display (LCD) Note: This function is not supported when the computer is in large desktop mode or when the computer output is driven by the secondary CRT controller. Fn + F8 Turn screen expansion on or off. (There is no symbol on the key.) Note: This function is not supported in Windows 2000. Reserved. Reserved. Reserved. Turn hibernation mode on. To return to normal operation, press the power button for less than four seconds. Turn the ThinkLight on or off. The computer display becomes brighter. The computer display becomes less bright. Audio volume becomes bigger. Audio volume becomes smaller. Mute.

Fn + F9 Fn + F10 Fn + F11 Fn + F12

Fn + PgUp Fn + Home Fn + End Fn + Insert (for i-series) Fn + Delete (for i-series) Fn + Backspace (for i-series)

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Symptom-to-FRU index

Symptom-to-FRU index
The symptom-to-FRU index in this section lists symptoms and errors and their possible causes. The most likely cause is listed first, in boldface type. Note: Do the FRU replacement or other actions in the sequence shown in the column headed FRU or action, in sequence. If replacing a FRU does not solve the problem, put the original part back in the computer. Do not replace a nondefective FRU. This index can also help you determine, during regular servicing, what FRUs are likely to need to be replaced next. A numeric error is displayed for each error detected in POST or system operation. In the displays, n can be any number. If no numeric code is displayed, check the narrative descriptions of symptoms. If the symptom is not described there, go to Intermittent problems on page 52.

Note For an IBM device not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for that device.

Numeric error codes

Symptom or error 0175 Bad CRC1, stop POST task The EEPROM checksum is not correct. 0187 EAIA data access error The access to EEPROM has failed. 0188 Invalid RFID serialization information area or bad CRC2 The EEPROM checksum is not correct. 0189 Invalid RFID configuration information area The EEPROM checksum is not correct. FRU or action, in sequence System board.

System board.

System board.

System board.

(continued)

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Symptom-to-FRU index Symptom or error 0190 Critical low battery error. 0200 Hard disk error The hard disk is not working. FRU or action, in sequence 1. Charge the battery pack. 2. Battery pack. 1. Reseat the hard-disk drive. 2. Load Setup Defaults in IBM BIOS Setup Utility. 3. Hard-disk drive. 4. System board. Run interactive tests of the keyboard and the auxiliary input device. Load Setup Defaults in IBM BIOS Setup Utility.

021x Stuck key Keyboard error. 0220 Monitor type error Monitor type does not match the one specified in CMOS. 0230 Shadow RAM error The shadow RAM failure at offset nnnn. 0231 System RAM failure at offset nnnn. 0232 Extended RAM error Extended RAM failure at offset nnnn. 0250 System battery error System battery is dead. 0251 System CMOS checksum badDefault configuration used. 0252 Password checksum bad The password is cleared. 0260 System timer error.

System board.

1. DIMM. 2. System board. 1. DIMM. 2. System board.

Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. Reset the password by running IBM BIOS Setup Utility. 1. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 2. System board. 1. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 2. System board. Run IBM BIOS Setup Utility to reset the time and date.

0270 Real-time clock error.

0271 Date and time error Neither the date nor the time is set in the computer.

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Symptom-to-FRU index Symptom or error 0280 Previous boot incomplete Default configuration used. 02D0 System cache error. 02B2 Incorrect drive A type. 02F4 EISA CMOS not writable. 1. Diskette drive. 2. External FDD cable. 3. I/O card. 1. Load Setup Defaults in IBM BIOS Setup Utility. 2. Replace the backup battery. 3. System board. 1. DIMM. 2. System board. 1. DIMM. 2. System board. 1. DIMM. 2. System board. Shut down the computer and remove it from the docking station. FRU or action, in sequence 1. Load Setup Defaults in IBM BIOS Setup Utility. 2. DIMM. 3. System board.

02F5 DIMM test failure. 02F6 Software NMI failure. 02F7 Fail-safe timer NMI failure. 1801 Attached docking station is not supported.

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Error messages
Symptom or error Device address conflict. FRU or action, in sequence 1. Load Setup Defaults in IBM BIOS Setup Utility. 2. Backup battery. 3. System board. 1. Load Setup Defaults in IBM BIOS Setup Utility. 2. Backup battery. 3. System board. 1. DIMM. 2. System board. 1. DIMM. 2. System board. 1. Load Setup Defaults in IBM BIOS Setup Utility. 2. Backup battery. 3. System board. 1. Check that the operating system has no failure and is installed correctly. 2. Enter IBM BIOS Setup Utility and see whether the hard-disk drive and the diskette drive are properly identified. 3. Reseat the hard-disk drive. 4. Reinstall the operating system. 5. Diskette drive. 6. Hard-disk drive. 7. System board. 1. Restore the system configuration to what it was before the computer entered hibernation mode. 2. If memory size has been changed, re-create the hibernation file. Fan. Shut down the computer and remove the extra memory. Maximum memory size is: v 256 MB for A21e series and the low-end models of A22e. v 512 MB for the high-end models of A22e.

Allocation error for device.

Failing bits: nnnn. Invalid system configuration data. I/O device IRQ conflict.

Operating system not found.

Hibernation error.

Fan error. Unsupported memory configuration.

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Symptom-to-FRU index

Beep symptoms
Symptom or error One beep and a blank, unreadable, or flashing LCD. FRU or action, in sequence 1. Reseat the LCD connector. 2. LCD assembly. 3. External CRT. 4. System board. 1. System board. 2. LCD assembly. 3. DIMM. POST error. See Numeric error codes on page 46. 1. System board. 2. DIMM. If a mini-PCI Ethernet card is installed, confirm that Alert On LAN 2 in IBM BIOS Setup Utility is disabled. 1. DIMM. 2. System board Reinstall operating system.

One long and two short beeps, and a blank or unreadable LCD. Two short beeps with error codes. Two short beeps with blank screen. Two or more beeps, or a continuous beep. Operating System starts successfully. Three short beeps, pause, three more short beeps, and one short beep. Only cursor appears.

No beep symptoms
Symptom or error No beep, power-on indicator on, LCD blank, and no POST. FRU or action, in sequence 1. Make sure that every connector is connected tightly and correctly. 2. DIMM. 3. System board. 1. Reseat DIMM. 2. System board. Speaker. A power-on password or a supervisor password is set. Type the password and press Enter. A hard-disk password is set. Type the password and press Enter. Start the ThinkPad Configuration program and set the Screen expansion function.

No beep, power-on indicator on, and LCD blank during POST. No beep during POST, but system runs correctly. The power-on password prompt.

The hard-disk password prompt. The DOS full screen looks smaller.

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LCD-related symptoms
Important The TFT LCD for the notebook computer contains many thin-film transistors (TFTs). A small number of dots that are missing, discolored, or always lighted is characteristic of TFT LCD technology, but excessive pixel problems can cause viewing concerns. The LCD should be replaced if the number of missing, discolored, or lighted dots in any background is: v SVGA: 5 or more bright dots, 5 or more dark dots, or a total of 9 or more bright and dark dots. v XGA: 8 or more bright dots, 8 or more dark dots, or a total of 9 or more bright and dark dots. Note: Bright dots means pixel is always on (white or color.) Dark dots means pixel is always off (black color.)
Symptom or error No beep, power-on indicator on, and a blank LCD during POST. v LCD backlight not working. v LCD too dark. v LCD brightness cannot be adjusted. v LCD contrast cannot be adjusted. v v v v LCD screen unreadable. Characters missing pixels. Screen abnormal. Wrong color displayed. FRU or action, in sequence System board.

1. Reseat the LCD connectors. 2. LCD assembly. 3. System board.

1. See important note for LCD-related symptoms. 2. Reseat all LCD connectors. 3. LCD assembly. 4. System board. LCD assembly.

Horizontal or vertical lines displayed on LCD.

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Symptom-to-FRU index

Intermittent problems
Intermittent system hang problems can be due to a variety of causes that have nothing to do with a hardware defect, such as cosmic radiation, electrostatic discharge, or software errors. FRU replacement should be considered only when a problem recurs. When analyzing an intermittent problem, do the following: 1. Run the diagnostic test for the system board in loop mode at least 10 times. 2. If no error is detected, do not replace any FRUs. 3. If any error is detected, replace the FRU shown by the FRU code. Rerun the test to verify that no more errors exist.

Undetermined problems
You are here because the diagnostic tests did not identify which adapter or device failed, wrong devices are installed, a short circuit is suspected, or the system is inoperative. Follow these procedures to isolate the failing FRU (do not isolate FRUs that have no defects). Verify that all attached devices are supported by the computer. Verify that the power supply being used at the time of the failure is operating correctly. (See Power system checkout on page 34.) 1. Power off the computer. 2. Visually check each FRU for damage. Replace any damaged FRU. 3. Remove or disconnect all of the following devices: a. Non-IBM devices b. Devices attached to the port replicator c. Printer, mouse, and other external devices d. Battery pack e. Hard-disk drive f. External diskette drive g. DIMM h. CD-ROM and diskette drive in the Ultrabay 2000 i. PC Cards 4. Power on the computer. 5. Determine whether the problem has changed. 6. If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU. 7. If the problem remains, replace the following FRUs one at a time (do not replace a nondefective FRU): a. System board b. LCD assembly

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FRU replacement notices

This section contains notices related to removing and replacing parts. Read this section carefully before replacing any FRU.

Screw notices
Loose screws can cause a reliability problem. In IBM ThinkPad computer, this problem is addressed with special nylon-coated screws that have the following characteristics: v They maintain tight connections. v They do not easily come loose, even with shock or vibration. v They are harder to tighten. v They should be used only once. Do the following when you service this machine: v Keep the screw kit (for the P/N, see Miscellaneous parts on page 131) in your tool bag. v Always use new screws. v Use a torque screwdriver if you have one. Tighten screws as follows: v Plastic to plastic Turn an additional 90 degrees after the screw head touches the surface of the plastic part:

90 degrees more

(Cross-section)
v Logic card to plastic Turn an additional 180 degrees after the screw head touches the surface of the logic card:

180 degrees more

(Cross-section)
v Torque driver If you have a torque driver, refer to the Torque column for each step.

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FRU replacement notices

v Make sure you use the correct screw. If you have a torque screwdriver, tighten all screws firmly to the torque shown in the table. Never use a screw that you removed. Use a new one. Make sure the screws are tightened firmly.

Retaining serial numbers

This section includes the following descriptions: v Restoring the serial number of the system unit v Retaining the UUID

Restoring the serial number of the system unit

When the computer was manufactured, the EEPROM on the system board was loaded with the serial numbers of the system and all major components. These numbers need to remain the same throughout the life of the computer. If you replace the system board, you must restore the serial number of the system unit to its original value. Before replacing the system board, save the original serial number by doing the following: 1. Install the ThinkPad hardware maintenance diskette version 1.61, and restart the computer. 2. From the main menu, select 1. Set System Identification. 3. Select 2. Read S/N data from EEPROM. The serial number for each device is displayed. Write down the serial number of the system unit, designated as follows: 20: System unit serial number After you have replaced the system board, restore the serial number by doing the following: 1. Install the ThinkPad hardware maintenance diskette version 1.61 and restart the computer. 2. From the main menu, select 1. Set System Identification. 3. Select 1. Add S/N data from EEPROM. Follow the instructions on the screen. Note: The serial number of the system unit is written on the label attached on the bottom of the computer.

Retaining the UUID

The Universally Unique Identifier (UUID) is a 128-bit number uniquely assigned to your computer at production and stored in the EEPROM of your system board. The algorithm that generates the number is designed to provide

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FRU replacement notices

unique IDs until the year A.D. 3400. No two computers in the world have the same number. When you replace the system board, you must set the UUID on the new system board as follows: 1. Install the ThinkPad hardware maintenance diskette version 1.61, and restart the computer. 2. From the main menu, select 4. Assign UUID. A new UUID is created and written. If a valid UUID already exists, it is not overwritten.

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Removing and replacing a FRU

Removing and replacing a FRU

This section presents directions and drawings for use in removing and replacing a FRU. Be sure to observe the following general rules: 1. Do not try to service any computer unless you have been trained and certified. An untrained person runs the risk of damaging parts. 2. Before replacing any FRU, review FRU replacement notices on page 53. 3. Begin by removing any FRUs that have to be removed before the failing FRU. Any such FRUs are listed at the top of the page. Remove them in the order in which they are listed. 4. Follow the correct sequence in the steps for removing the FRU, as indicated in the drawings by the numbers in square callouts. 5. When turning a screw to replace a FRU, turn it in the direction indicated by the arrow in the drawing. 6. When removing the FRU, move it in the direction indicated by the arrow in the drawing. 7. To put the new FRU in place, reverse the removal procedure and follow any notes that pertain to replacement. For information about connecting and arranging internal cables, see Locations on page 115. 8. When replacing a FRU, use the correct screw as shown in the procedures.
DANGER:

Before removing any FRU, power off the computer, unplug all power cords from electrical outlets, remove the battery pack, and then disconnect any interconnecting cables. Attention: Before the computer is powered on after FRU replacement, make sure that all screws, springs, and other small parts are in place and are not loose inside the computer. Verify this by shaking the computer gently and listening for rattling sounds. Metallic parts or metal flakes can cause electrical short circuits. Attention: The system board is sensitive to, and can be damaged by, electrostatic discharge. Before touching it, establish personal grounding by touching a ground point with one hand or by using an electrostatic discharge (ESD) strap (P/N 6405959).

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1010 Battery pack

DANGER:

Use only the battery in the parts listing for the computer you are servicing. The use of an incorrect battery can result in ignition or explosion of the battery.

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Removing and replacing a FRU

1020 Backup battery

DANGER:

Use only the battery in the parts listing for the computer you are servicing. The use of an incorrect battery can result in ignition or explosion of the battery. For access, remove this FRU: v 1010 Battery pack on page 57

Step 1

Screw (quantity) M2.5 3.5 mm, nylon-coated (1)

Torque 39.2 Ncm (4 kgfcm)

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Cable routing: When replacing the cable, route it as in this drawing:

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Removing and replacing a FRU

1030 Hard-disk drive

Attention Do not drop or apply any shock to the hard-disk drive. The hard-disk drive is sensitive to physical shock. Incorrect handling can cause damage and permanent loss of data. Before removing the drive, have the user make a backup copy of all the information on the drive if possible. Never remove the drive while the system is operating or is in suspend mode. For access, remove this FRU: v 1010 Battery pack on page 57

Note: The hard disk is attached to the cover.

Step 1 Screw (quantity) Coin screw (1) or security screw (1)

Note: Use a 2.5-mm Allen wrench to remove the security screw.

(continued)

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When removing the hard-disk drive, open the LCD a little as shown in the figure.

When installing: Make sure that the hard-disk connector is firmly connected.

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Removing and replacing a FRU

1040 DIMM
For access, remove this FRU: v 1010 Battery pack on page 57 Note: Loosen the screw 1 , but do not remove it.

When installing: Make sure that the card is firmly fixed in the slot and cannot be moved easily.

62

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1050 Mini PCI adapter

For access, remove this FRU: v 1010 Battery pack on page 57 Note: Loosen the screw 1 , but do not remove it.

1 2

(continued)

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Removing and replacing a FRU

Notes: 1. The following two illustrations show the combo card. Connector (A) is for the LAN feature and (B) is for the modem feature. Disconnect either (A) or (B) in step 6 . This slot also supports a Mini PCI modem card or Mini PCI network card. 2. Step 3 is only for MT2655-21x, 22x, 23x, 31x, 32x, 33x, 41x, 42x, 43x, 71x, 72x, 73x, 81x, 82x, 83x, 91x, 92x, 93x, B2x, B4x, P3J. Other models do not have the bracket.

3 4

(B) (A)
4

(B)
6

(A)

64

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When installing: 1. Make sure that the card is firmly fixed in the slot and cannot be moved easily. 2. Make sure not to pinch the connector cable (A) under the Mini PCI adapter. Place the cable (A) as shown in the following figure.

(A)

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Removing and replacing a FRU

1060 Ultrabay 2000 device

Any of several devices can be inserted into the Ultrabay 2000. The procedure for installing and removing is the same for every device. Note: When you release the switch in step 1 the lever pops out. Pull the lever a little in step 2 to release the device from the bay.

66

ThinkPad A21e, A22e, i 1800 (MT 2655/2663/2664)

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1070 Keyboard
For access, remove these FRUs, in order: v 1010 Battery pack on page 57 v 1020 Backup battery on page 58 v 1030 Hard-disk drive on page 60 v 1060 Ultrabay 2000 device on page 66

Step 1

Screw (quantity) M2.5 14 mm, nylon-coated (2)

Torque 39.2 Ncm (4 kgfcm)

2 2

(continued)

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67

Removing and replacing a FRU

5 6

6 5

7 6

68

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When installing the easy-button cover, do as follows:

1 1

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Removing and replacing a FRU

When installing: When installing the keyboard, do as follows: 1. Install the new keyboard, following the directions in the figure. Make sure that the keyboard edges, shown in the figure as (A), (B), and (C), are under the frame.

(A)

(B)

(C)

2. Insert your fingers into the PC Card slot on the left of the computer and the Ultrabay 2000 slot on the right of the computer as shown in 1 . Then, with your fingers in those slots as in 2 , latch the keyboard in place by using your thumbs to press firmly on the Shift keys. Press the Y key to connect the keyboard to the connector on the under side of the key 3 .

1 1

(continued)

70

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3. To make sure that the front side of the keyboard is housed firmly, gently press the Shift keys with your thumbs and try to slide the keyboard towards you. Do not push parts (A) and (B) on the keyboard strongly; to do so might cause distortion of the Ultrabay 2000 slot and the PC Card slot.

(A)

(B)

4. After the fastening of two screws of bottom side, push the Y key again to connect the keyboard firmly to the connector on the underside of the key.

ThinkPad A21e, A22e, i 1800

71

Removing and replacing a FRU

1080 Keyboard CRU insulator

For access, remove these FRUs, in order: v 1010 Battery pack on page 57 v 1020 Backup battery on page 58 v 1030 Hard-disk drive on page 60 v 1060 Ultrabay 2000 device on page 66 v 1070 Keyboard on page 67
1

72

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Removing and replacing a FRU

1090 Fan assembly

For access, remove these FRUs, in order: v 1010 Battery pack on page 57 v 1020 Backup battery on page 58 v 1030 Hard-disk drive on page 60 v 1060 Ultrabay 2000 device on page 66 v 1070 Keyboard on page 67 v 1080 Keyboard CRU insulator on page 72

For models excepting MT2655-65x, 66x, 67x, B5x, B6x, B7x

1

Step 1

Screw (quantity) M2.5 3.5 mm, nylon-coated (1)

Torque 39.2 Ncm (4 kgfcm)

(continued)

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Removing and replacing a FRU

Step 2

Screw (quantity) M2.0 13.5 mm, nylon-coated (4)

Torque 24.5 Ncm (2.5 kgfcm)

74

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For MT2655-65x, 66x, 67x, B5x, B6x, B7x

1

Step 1

Screw (quantity) M2.5 3.5 mm, nylon-coated (1)

Torque 39.2 Ncm (4 kgfcm)

(continued)

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Removing and replacing a FRU

Step 2

Screw (quantity) M2.0 13.5 mm, nylon-coated (4)

Torque 24.5 Ncm (2.5 kgfcm)

When installing: When installing the fan assembly, apply the thermal grease (05K5751) on the a -part of the fan as shown in the following figure.

76

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1100 CPU
Note This section is only for MT2655-45x, 46x, 47x, 48x, 4Ax, 55x, 56x, 57x, 58x, 5Ax, 65x, 66x, 67x, 95x, 96x, 97x, 98x, 9Ax, A5x, A6x, A7x, A8x, AAx, B5x, B6x, B7x, E7x, F7x, M7x, P7J, PAJ. For access, remove these FRUs, in order: v 1010 Battery pack on page 57 v 1020 Backup battery on page 58 v 1030 Hard-disk drive on page 60 v 1060 Ultrabay 2000 device on page 66 v 1070 Keyboard on page 67 v 1080 Keyboard CRU insulator on page 72 v 1090 Fan assembly on page 73 Rotate the head of the screw (A) to the direction of the arrow 1 to release the lock and then remove the CPU 2 .

1 2

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When installing: 1. When attaching the CPU to the socket, do as shown in the step 1 in this figure. 2. Rotate the the head of the screw (A) to the direction of the arrow 2 to lock the CPU.

78

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1110 PC Card slot assembly

For access, remove these FRUs, in order: v 1010 Battery pack on page 57 v 1020 Backup battery on page 58 v 1030 Hard-disk drive on page 60 v 1060 Ultrabay 2000 device on page 66 v 1070 Keyboard on page 67 v 1080 Keyboard CRU insulator on page 72
1 1

Step 1

Screw (quantity) M2.0 13.5 mm, nylon-coated (4)

Torque 24.5 Ncm (2.5 kgfcm)

ThinkPad A21e, A22e, i 1800

79

Removing and replacing a FRU

When installing the PC Card slot assembly, do as shown in the figure.

80

ThinkPad A21e, A22e, i 1800 (MT 2655/2663/2664)

Removing and replacing a FRU

1120 Hinge cover

For access, remove these FRUs, in order: v 1010 Battery pack on page 57 v 1020 Backup battery on page 58 v 1030 Hard-disk drive on page 60 v 1060 Ultrabay 2000 device on page 66 v 1070 Keyboard on page 67 v 1080 Keyboard CRU insulator on page 72

Step 1

Screw (quantity) M2.5 14 mm, nylon-coated (3)

Torque 39.2 Ncm (4 kgfcm)

(continued)

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Removing and replacing a FRU

2 3

Step 2

Screw (quantity) M2.5 4.8 mm, nylon-coated (1)

Torque 39.2 Ncm (4 kgfcm)

When installing, do as follows; v Install the hinge cover according to the procedure 3 , 4 and then tighten the screw 2 . In procedure 3 , take care not to damage the lens. v Make sure that all of the latches a are firmly attached and snap into place.

82

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1130 Keyboard bezel

For access, remove these FRUs, in order: v 1010 Battery pack on page 57 v 1020 Backup battery on page 58 v 1030 Hard-disk drive on page 60 v 1060 Ultrabay 2000 device on page 66 v 1070 Keyboard on page 67 v 1080 Keyboard CRU insulator on page 72 v 1120 Hinge cover on page 81

Step 1

Screw (quantity) M2.5 3.5 mm, nylon-coated (3)

Torque 39.2 Ncm (4 kgfcm)

(continued)

ThinkPad A21e, A22e, i 1800

83

Removing and replacing a FRU

2 3

Step 2 3

Screw (quantity) M2.5 14 mm, nylon-coated (1) M2.5 4.8 mm, nylon-coated (2)

Torque 39.2 Ncm (4 kgfcm) 39.2 Ncm (4 kgfcm)

84

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When installing, do as following; v Make sure that the a -part is firmly attached as shown in the figure. v Make sure that all of the latches of the keyboard bezel b are firmly attached.

b b b b

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85

Removing and replacing a FRU

1140 Speaker
For access, remove these FRUs, in order: v 1010 Battery pack on page 57 v 1020 Backup battery on page 58 v 1030 Hard-disk drive on page 60 v 1060 Ultrabay 2000 device on page 66 v 1070 Keyboard on page 67 v 1080 Keyboard CRU insulator on page 72 v 1120 Hinge cover on page 81 v 1130 Keyboard bezel on page 83

For A21e series

1

Step 1

Screw (quantity) M2.5 14 mm, nylon-coated (2)

Torque 39.2 Ncm (4 kgfcm)

86

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Removing and replacing a FRU

For A22e and i 1800 series

For MT2655-25x, 26x, 27x, 35x, 36x, 37x, 75x, 76x, 77x, 85x, 86x, 87x, D7x, H7x, J7x, P3J, MT2663-77x, MT2664-77x:

Step 1

Screw (quantity) M2.5 14 mm, nylon-coated (2)

Torque 39.2 Ncm (4 kgfcm)

ThinkPad A21e, A22e, i 1800

87

Removing and replacing a FRU

For MT2655-45x, 46x, 47x, 48x, 4Ax, 55x, 56x, 57x, 58x, 5Ax, 65x, 66x, 67x, 95x, 96x, 97x, 98x, 9Ax, A5x, A6x, A7x, A8x, AAx, B5x, B6x, B7x, E7x, F7x, M7x, P7J, PAJ:

Step 1

Screw (quantity) M2.5 14 mm, nylon-coated (2)

Torque 39.2 Ncm (4 kgfcm)

88

ThinkPad A21e, A22e, i 1800 (MT 2655/2663/2664)

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1150 Hard-disk bay

For access, remove these FRUs, in order: v 1010 Battery pack on page 57 v 1020 Backup battery on page 58 v 1030 Hard-disk drive on page 60 v 1060 Ultrabay 2000 device on page 66 v 1070 Keyboard on page 67 v 1080 Keyboard CRU insulator on page 72 v 1120 Hinge cover on page 81 v 1130 Keyboard bezel on page 83 v 1140 Speaker on page 86

1 2

Step 1

Screw (quantity) M2.5 4.8 mm, nylon-coated (1)

Torque 39.2 Ncm (4 kgfcm)

ThinkPad A21e, A22e, i 1800

89

Removing and replacing a FRU

When installing: Make sure that the a -parts of the insulation are not came off and the b -part is not turned over.

a b a

90

ThinkPad A21e, A22e, i 1800 (MT 2655/2663/2664)

Removing and replacing a FRU

1160 LED connector card

Note This section is only for MT2655-45x, 46x, 47x, 48x, 4Ax, 55x, 56x, 57x, 58x, 5Ax, 65x, 66x, 67x, 95x, 96x, 97x, 98x, 9Ax, A5x, A6x, A7x, A8x, AAx, B5x, B6x, B7x, E7x, F7x, M7x, P7J, PAJ. Other models do not have LED connector card. For access, remove these FRUs, in order: v 1010 Battery pack on page 57 v 1020 Backup battery on page 58 v 1030 Hard-disk drive on page 60 v 1060 Ultrabay 2000 device on page 66 v 1070 Keyboard on page 67 v 1080 Keyboard CRU insulator on page 72 v 1120 Hinge cover on page 81 v 1130 Keyboard bezel on page 83

Step 1

Screw (quantity) M2.5 14 mm, nylon-coated (1)

Torque 39.2 Ncm (4 kgfcm)

(continued)

ThinkPad A21e, A22e, i 1800

91

Removing and replacing a FRU

When installing: Make sure that the connectors are firmly attached.

92

ThinkPad A21e, A22e, i 1800 (MT 2655/2663/2664)

Removing and replacing a FRU

1170 Ultrabay 2000 slot

For access, remove these FRUs, in order: v 1010 Battery pack on page 57 v 1020 Backup battery on page 58 v 1030 Hard-disk drive on page 60 v 1060 Ultrabay 2000 device on page 66 v 1070 Keyboard on page 67 v 1080 Keyboard CRU insulator on page 72 v 1120 Hinge cover on page 81 v 1130 Keyboard bezel on page 83 v 1160 LED connector card on page 91

Note Step 1 and 2 are only for MT2655-x1x, x2x, x3x, x4x, 25x, 26x, 27x, 35x, 36x, 37x, 75x, 76x, 77x, 85x, 86x, 87x, MT2663-77x, MT2664-77x. For other models, start removing from step 3 .

Step 1

Screw (quantity) M2.5 14 mm, nylon-coated (1)

Torque 39.2 Ncm (4 kgfcm)

(continued)

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Removing and replacing a FRU

2 a

When installing: Make sure that the FPC bracket is firmly attached as shown in the figure a .

Step 3

Screw (quantity) M2.5 4.8 mm, nylon-coated (1)

Torque 39.2 Ncm (4 kgfcm)

(continued)

94

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Step 4 5

Screw (quantity) M2 13.5 mm, nylon-coated (2) M2.5 4.8 mm, nylon-coated (2)

Torque 24.5 Ncm (2.5 kgfcm) 39.2 Ncm (4 kgfcm)

When installing: Make sure that the guide of the slot is firmly attached 1 and if the eject lever has been popped out, push it back in the direction of arrow 2 until it snaps, and then push the upper-right corner of the slot 3 to fix it firmly.

1 2

ThinkPad A21e, A22e, i 1800

95

Removing and replacing a FRU

1180 System board

For access, remove these FRUs, in order: v 1010 Battery pack on page 57 v 1020 Backup battery on page 58 v 1030 Hard-disk drive on page 60 v 1040 DIMM on page 62 v 1050 Mini PCI adapter on page 63 v 1060 Ultrabay 2000 device on page 66 v 1070 Keyboard on page 67 v 1080 Keyboard CRU insulator on page 72 v 1090 Fan assembly on page 73 v 1110 PC Card slot assembly on page 79 v 1120 Hinge cover on page 81 v 1130 Keyboard bezel on page 83 v 1140 Speaker on page 86 v 1150 Hard-disk bay on page 89 v 1160 LED connector card on page 91 v 1170 Ultrabay 2000 slot on page 93

4
1 2

Step 4

Screw (quantity) M2.5 4.8 mm, nylon-coated (1)

Torque 39.2 Ncm (4 kgfcm)

96

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When installing: Make sure that all of the guides are firmly attached 1 and you fasten the connector firmly to the underside of the system board 2 .

2 1

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97

Removing and replacing a FRU

2010 LCD assembly

For access, remove these FRUs, in order: v 1010 Battery pack on page 57 v 1020 Backup battery on page 58 v 1030 Hard-disk drive on page 60 v 1060 Ultrabay 2000 device on page 66 v 1070 Keyboard on page 67 v 1080 Keyboard CRU insulator on page 72 v 1120 Hinge cover on page 81 v 1130 Keyboard bezel on page 83 v 1160 LED connector card on page 91

Step 1

Screw (quantity) M2.5 4.8 mm, nylon-coated (4)

Torque 39.2 Ncm (4 kgfcm)

(continued)

98

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For models excepting MT2655-45x, 46x, 47x, 48x, 4Ax, 55x, 56x, 57x, 58x, 5Ax, 65x, 66x, 67x, 95x, 96x, 97x, 98x, 9Ax, A5x, A6x, A7x, A8x, AAx, B5x, B6x, B7x, E7x, F7x, M7x, P7J, PAJ

Step 2

Screw (quantity) M2.5 4.8 mm, nylon-coated (1)

Torque 39.2 Ncm (4 kgfcm)

Step 3 4

Screw (quantity) M2.5 3.5 mm, nylon-coated (1) M2.5 14 mm, nylon-coated (1)

Torque 39.2 Ncm (4 kgfcm) 39.2 Ncm (4 kgfcm)

(continued)

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Removing and replacing a FRU

Pull the bundle of LCD cable out from the cable guide of the LCD assembly in the direction of the arrow 5 as shown in the following figure.

Pull the LCD cable connector up in the direction of the arrow 6 as shown in the following figure.

When installing: Make sure that the LCD cable connector is firmly attached and then tighten the screws of each terminals. (continued)

100

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8 7

Step 7

Screw (quantity) M2.5 4.8 mm, nylon-coated (2)

Torque 39.2 Ncm (4 kgfcm)

ThinkPad A21e, A22e, i 1800

101

Removing and replacing a FRU

For MT2655-45x, 46x, 47x, 48x, 4Ax, 55x, 56x, 57x, 58x, 5Ax, 65x, 66x, 67x, 95x, 96x, 97x, 98x, 9Ax, A5x, A6x, A7x, A8x, AAx, B5x, B6x, B7x, E7x, F7x, M7x, P7J, PAJ

2 3

Step 2 3

Screw (quantity) M2.5 3.5 mm, nylon-coated (1) M2.5 4.8 mm, nylon-coated (1)

Torque 39.2 Ncm (4 kgfcm) 39.2 Ncm (4 kgfcm)

Pull the bundle of LCD cable out from the cable guide of the LCD assembly in the direction of the arrow 4 as shown in the following figure.

(continued)

102

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6 5

Step 5

Screw (quantity) M2.5 4.8 mm, nylon-coated (2)

Torque 39.2 Ncm (4 kgfcm)

ThinkPad A21e, A22e, i 1800

103

Removing and replacing a FRU

2020 Front bezel

For access, remove these FRUs, in order: v 1010 Battery pack on page 57 v 1020 Backup battery on page 58 v 1030 Hard-disk drive on page 60 v 1060 Ultrabay 2000 device on page 66 v 1070 Keyboard on page 67 v 1080 Keyboard CRU insulator on page 72 v 1120 Hinge cover on page 81 v 1130 Keyboard bezel on page 83 v 1160 LED connector card on page 91 v 2010 LCD assembly on page 98

12.1-in. LCD (only for A21e series)

2 1 1

Step 1

Screw (quantity) M2.5 4.8 mm, nylon-coated (3)

Torque 39.2 Ncm (4 kgfcm)

104

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13.3-in. and 14.1-in. LCD

2 1 1

Step 1

Screw (quantity) M2.5 4.8 mm, nylon-coated (3)

Torque 39.2 Ncm (4 kgfcm)

ThinkPad A21e, A22e, i 1800

105

Removing and replacing a FRU

2030 Inverter card

For access, remove these FRUs, in order: v 1010 Battery pack on page 57 v 1020 Backup battery on page 58 v 1030 Hard-disk drive on page 60 v 1060 Ultrabay 2000 device on page 66 v 1070 Keyboard on page 67 v 1080 Keyboard CRU insulator on page 72 v 1120 Hinge cover on page 81 v 1130 Keyboard bezel on page 83 v 1160 LED connector card on page 91 v 2010 LCD assembly on page 98 v 2020 Front bezel on page 104

12.1-in. LCD (only for A21e series)

1

Step 1

Screw (quantity) M2.5 4.8 mm, nylon-coated (3)

Torque 39.2 Ncm (4 kgfcm)

106

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13.3-in. and 14.1-in. LCD

Cable routing: When replacing the inverter card, route the connector cable as in the following figure:

ThinkPad A21e, A22e, i 1800

107

Removing and replacing a FRU

2040 LCD panel

For access, remove these FRUs, in order: v 1010 Battery pack on page 57 v 1020 Backup battery on page 58 v 1030 Hard-disk drive on page 60 v 1060 Ultrabay 2000 device on page 66 v 1070 Keyboard on page 67 v 1080 Keyboard CRU insulator on page 72 v 1120 Hinge cover on page 81 v 1130 Keyboard bezel on page 83 v 1160 LED connector card on page 91 v 2010 LCD assembly on page 98 v 2020 Front bezel on page 104 v 2030 Inverter card on page 106

12.1-in. LCD (only for A21e series)

1 1 1

Step 1

Screw (quantity) M2.5 4.8 mm, nylon-coated (5)

Torque 39.2 Ncm (4 kgfcm)

(continued)

108

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ThinkPad A21e, A22e, i 1800

109

Removing and replacing a FRU

13.3-in. and 14.1-in. LCD

1a

1a

1a

1 1a
Step 1 1a Screw (quantity) For 13.3in. LCD M2 4 mm, nylon-coated (4) For 14.1in. LCD M2 4 mm, nylon-coated (4) Torque 24.5 Ncm (2.5 kgfcm) 24.5 Ncm (2.5 kgfcm)

(continued)

110

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3 4

Step 2

Screw (quantity) M2.5 4.8 mm, nylon-coated (1)

Torque 39.2 Ncm (4 kgfcm)

5 6

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Removing and replacing a FRU

Cable routing: When installing the LCD, route the connector cable as in the following figure:

112

ThinkPad A21e, A22e, i 1800 (MT 2655/2663/2664)

Removing and replacing a FRU

2050 Sub card

For access, remove these FRUs, in order: v 1010 Battery pack on page 57 v 1020 Backup battery on page 58 v 1030 Hard-disk drive on page 60 v 1040 DIMM on page 62 v 1050 Mini PCI adapter on page 63 v 1060 Ultrabay 2000 device on page 66 v 1070 Keyboard on page 67 v 1080 Keyboard CRU insulator on page 72 v 1090 Fan assembly on page 73 v 1110 PC Card slot assembly on page 79 v 1120 Hinge cover on page 81 v 1130 Keyboard bezel on page 83 v 1140 Speaker on page 86 v 1150 Hard-disk bay on page 89 v 1160 LED connector card on page 91 v 1170 Ultrabay 2000 slot on page 93 v 1180 System board on page 96 v 2010 LCD assembly on page 98

2 2

3
Step 2 3 Screw (quantity) Hex stud (6) M2.5 4.8 mm, nylon-coated (4) Torque 39.2 Ncm (4 kgfcm) 39.2 Ncm (4 kgfcm)

ThinkPad A21e, A22e, i 1800

113

Removing and replacing a FRU

When installing, do the followings; v Make sure that the eject lever is popped out a and then install the sub card. v Take care not to damage the switch on the sub card (A). v Make sure that the guide of the card is firmly attached b as shown in the figure.

114

ThinkPad A21e, A22e, i 1800 (MT 2655/2663/2664)

Locations

Locations Front view

1 2 3 4 5 6 System status indicators Power switch Battery and standby status indicators Bay latch Eject button Ultrabay 2000 device Note: The Ultrabay 2000 accepts storage devices, such as a DVD drive or a CD-ROM drive. TrackPoint buttons TrackPoint pointing stick ThinkPad button Volume and mute buttons 9 and 10 are Ez buttons for MT2655-P3J, P7J, PAJ.

7 8 9 10 Note:

1 10

2 9 3

7 8

4 5 6

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Locations

Rear view
1 2 3 4 5 6 7 8 Security keyhole Serial connector Parallel connector External-monitor connector Modem connector Ethernet connector Power jack Universal serial bus (USB) connector

116

ThinkPad A21e, A22e, i 1800 (MT 2655/2663/2664)

Locations

Bottom view
1 2 3 4 5 6 7 8 9 10 11 12 13 Built-in speaker Battery pack Battery pack latches Docking connector Mini PCI card slot DIMM slot PC card slots PC card eject button Headphone jack Line-in jack Microphone jack Hard-disk drive LCD latches

2 1

4 5 6

7 8 13 10 11 12 9

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117

Parts list

Parts list A21e, A22e and i 1800 model matrix

The A21e, A22e and i 1800 series includes several models. The following table summarizes the characteristics of each model, to help you determine which FRU in the part list meets your need. The table contains an entry for each of the three types of model A21e, labeled A, B and C, the seven types of model A22e, labeled D through J, the three types of model i 1800, labeled K, L and M.
Celxxx: Intel Celeron processor xxx MHz, L2 128-KB cache CMGxxx: Intel mobile Pentium III processor xxx MHz featuring Intel SpeedStep technology

Type Model

HDD

Bay device

Mini PCI adapter

CPU

LCD

A21e (Memory: 64 MB) MT265521x, 71x MT265572x MT265523x, 73x MT2655M2A MT265531x, 81x B MT265532x, 82x MT265533x, 83x MT265541x, 91x MT265542x, 92x C MT265543x, 93x, B2G, B4G MT2655B1G, B3G, M4A Modem Ethernet Combo (Intel) Modem Ethernet Combo (Intel) 14.1-in. XGA Cel 700 13.3-in. XGA 20 GB CDROM (24x) Modem Ethernet Combo (Intel) Cel 650 12.1-in. SVGA

(continued)

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ThinkPad A21e, A22e, i 1800 (MT 2655/2663/2664)

Parts list Type Model HDD Bay device Mini PCI adapter CPU LCD

A22e (Memory: 64 MB) MT265525x, 75x MT265526x, 76x D MT265527x, 77x, H7x MT266377x MT266477x MT265535x, 85x MT265536x, 86x E MT265537x, 87x, BBG, BCG, D7x, J7x MT265548x, 98x F MT265549x, 99x MT26554Ax, 9Ax MT265558x, A8x G MT265559x, A9x MT26555Ax, AAx MT265545x, 95x H MT265546x, 96x MT265547x, 97x, E7x 30 GB 20 GB Modem Ethernet Combo (Intel) 14.1-in. XGA 15 GB CDROM (24x) Modem Ethernet Combo (Intel) Cel 800 13.3-in. XGA

Modem Ethernet Combo (Intel) Modem Ethernet Combo (Intel) Modem Ethernet Combo (Intel)

CMG 850

13.3-in. XGA

14.1-in. XGA

13.3-in. XGA

(continued)

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Parts list Type Model HDD Bay device Mini PCI adapter CPU LCD

A22e (Memory: 64 MB) MT265555x, A5x I MT265556x, A6x MT265557x, A7x, F7x, M7x MT265565x, B5x J MT265566x, B6 MT265567x, B7x i 1800 (Memory: 64 MB/128 MB) K L M MT2655P3J MT2655P7J MT2655PAJ 30 GB DVD/CD -RW 20 GB CD-RW Combo (Intel) Cel 750 CMG 750 14.1-in. XGA DVDROM (8x) 30 GB CDROM (24x) Modem Ethernet Combo (Intel) Modem CMG 900 CMG 850 14.1-in. XGA

Combo (Intel)

Note: The models labeled the type with asterisk are the high-end models and the others are the low-end models in preceding table.

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Parts list

Overall
1

22 ( k ) 21 a 20 b 19 2 c 18 16 i 15 14 13 h f 5 12 6 4 j 17 3 d e

11 10 g 9 8 7

Note: The parts marked with for A, B, C, D, E, K.

in preceding figure is only

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Parts list

v Each FRU is available for all types/models, unless specific types or models are given. v The FRUs marked with one asterisk are CRU (customer replacable unit). v The FRUs marked with two asterisks are CSU (customer set-up unit). v The FRUs marked with OP are also available as optional FRU.
No. FRU P/N

a k See Miscellaneous parts on page 131. 1 2 LCD unit (see LCD FRUs on page 125) Keyboard bezel assembly for A, B, C, D, E for Korea (only for D, E) Keyboard bezel assembly for F, G, H, I , J for Korea Keyboard bezel assembly for K Keyboard bezel assembly for L, M 3 Fan assembly for A, B, C, D, E, K Fan assembly for F, G, H, I, J, L, M 4 PC Card slots for A, B, C, D, E, K PC Card slots for F, G, H, I, J, L, M 5 6 I/O card assembly Base cover assembly for A, B, C for D, E for Korea (D, E) for F, G, H, I, J for Korea (H, I, J) for K for L, M 7 Ultrabay 2000 diskette drive (TEAC)* OP Ultrabay 2000 diskette drive (SONY)* OP Ultrabay 2000 CD-ROM drive (TEAC)* OP Ultrabay 2000 CD-ROM drive (LG) (lower power)* OP Ultrabay 2000 CD-RW drive (SONY)* OP Ultrabay 2000 DVD-ROM drive (MKE)* OP Ultrabay 2000 DVD-ROM drive (Hitachi)* OP Ultrabay 2000 CD-RW/DVD combo drive* OP 08K7123 26P9507 08K7124 26P9312 26P9314 08K7350 26P9315 08K9606 08K9607 27L3436 08K9545 08K9617 27L3447 27L4167 08K9571 08K7133 08K7134 26P9323 26P9324 08K7353 26P9325 08K7128 26P9317 08K7127 08K7064 26P8074

for other optional Ultrabay 2000 device, see Optional FRUs on page 135.

(continued)

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Parts list No. 8 9 FRU Cover, Mini PCI adapter slot* Battery pack (NiMH)** Panasonic for A, B, C, D, E excepting MT2655-xxJ OP Panasonic for MT2655-xxJ (in A, B, C, D, E) and K SANYO for A, B, C, D, E excepting MT2655-xxJ OP SANYO for MT2655-xxJ (in A, B, C, D, E) and K Battery pack (Li-Ion)** Panasonic for A J excepting MT2655-xxJ OP Panasonic for MT2655-xxJ (in H, I, J) and K, L, M SANYO for A J excepting MT2655-xxJ OP SANYO for MT2655-xxJ (in H, I, J) and K, L, M 10 11 12 Backup battery Cover, DIMM slot* Speaker assembly for A, B, C, D, E, K Speaker assembly for F, G, H, I, J, L, M 13 64-MB SDRAM SO DIMM** OP 128-MB SDRAM SO DIMM** OP for other optional DIMM, see Optional FRUs on page 135. 14 Mini PCI modem card (Ambit) (V.92 ready)* Mini PCI combo card (Intel)* OP Mini PCI Ethernet card (Intel)* 08K3383 06P3809 08K3348 02K6740 02K6778 02K6741 02K6779 02K6572 08K7136 08K7135 26P9326 20L0264 20L0265 02K6723 02K6774 02K6724 02K6775 P/N 08K7137

for other optional Mini PCI adapter, see Optional FRUs on page 135. 15 System board with Celeron processor 650 MHz for A with Celeron processor 700 MHz for B, C with Celeron processor 750 MHz for K with Celeron processor 800 MHz for D, E for F, G, H, I, L, M (1.6 V) for J (1.7 V) 12P3430 12P3433 12P3436 26P8093 26P8117 26P8118

(continued)

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123

Parts list No. 16 FRU CPU, Pentium III 750 MHz with SpeedStep technology for L, M CPU, Pentium III 850 MHz with SpeedStep technology for F, G, H, I CPU, Pentium III 900 MHz with SpeedStep technology for J 17 18 LED connector card for F, G, H, I, L, M Hard-disk drive (15.0 GB), STD* for A22e OP Hard-disk drive (15.0 GB), Hitachi* for A22e OP Hard-disk drive (20.0 GB), Hitachi* for A21e, A22e OP Hard-disk drive (20.0 GB), STD* for A21e, A22e OP Hard-disk drive (30.0 GB), STD* for A22e OP Hard-disk drive (30.0 GB), Hitachi* for A22e OP P/N 12P3446 12P3450 08K3346 26P8055 08K9585 08K9587 08K9533 27L4075 08K9590 08K9592

for other optional hard-disk drive, see Optional FRUs on page 135. 19 21 Cover, hard-disk drive* Keyboard* (see Keyboard on page 128) Keyboard for i 1800* 21 22 Pointing stick cap* Easy button cover AC adapter (72W), 2-pin (ASTEC)** OP AC adapter (72W), 2-pin (DELTA)** OP AC adapter (72W), 2-pin (SANKEN)** OP AC adapter (72W), 3-pin (ASTEC)** OP AC adapter (72W), 3-pin (DELTA)** OP Telephone cable* 02K5877 84G6536 26P9327 02K6753 02K6756 02K6757 02K6751 02K6754 27L0603 08K7138

Recovery CD for i 1800 series (see Recovery CDs for i 1800 series on page 129.) Recovery CD for A22e series (see Recovery CDs for A22e series on page 129.)

1394 Cardbus card (for i 1800) Cardbus cable (6-6 pin) (for i 1800) Cardbus cable (6-4 pin) (for i 1800)

19K5686 19K5688 19K5689

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Parts list

LCD FRUs
12.1-in. SVGA TFT (only for A21e)
Following FRUs are available for MT2655-21x, 22x, 23x, 71x, 72x, 73x, M2A.

4 3 2

2
No. 1 2 3 4 FRU LCD cover kit Hinge LCD cable assembly, 12.1 SVGA LCD panel (SANYO) 12.1 SVGA LCD panel (SAMSUNG) 12.1 SVGA 5 Inverter card P/N 08K7130 08K7132 27L0620 05K9577 05K9869 08K3417

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Parts list

13.3-in. XGA TFT

Following FRUs are available for MT2655-25x, 26x, 27x, 31x, 32x, 33x, 45x, 46x, 47x, 49x, 75x, 76x, 77x, 81x, 82x, 83x, 95x, 96x, 97x, 99x, MT2663-77x, MT2664-77x.

4 3 2

2
No. 1 FRU LCD cover kit 13.3 for A21e LCD cover kit 13.3 for A22e for Korea 2 3 4 5 Hinge LCD cable assembly, XGA LCD panel 13.3 XGA (LG) Inverter card P/N 08K7130 26P9409 26P9321 08K7132 27L0621 05K9892 08K3363

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Parts list

14.1-in. XGA TFT

Following FRUs are available for MT2655-35x, 36x, 37x, 41x, 42x, 43x, 55x, 56x, 57x, 59x, 65x, 66x, 67x, 85x, 86x, 87x, 91x, 92x, 93x, A5x, A6x, A7x, A9x, B1G, B2G, B3G, B4G, B5x, B6x, B7x, C5G, C7G, M4A, P3J, P7J.

4 3 2

2
No. 1 FRU LCD cover kit 14.1 for Korea (only for A22e) for i 1800 2 3 4 Hinge LCD cable assembly, XGA LCD panel 14.1 XGA Hyundai LG SAMSUNG 5 Inverter card 05K9907 05K9567 05K9678 08K3363 P/N 08K7410 26P9322 08K7352 08K7132 27L0621

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127

Parts list

Keyboard
Language Arabic Belgian Chinese, traditional Czech Danish Dutch English, U.K. English, U.S. French, Canadian French, European German Greek Hungarian Hebrew Italian Japanese Korean (only for A22e) Norwegian Polish Portuguese Russian Slovak Slovenian Spanish, European Spanish, Latin American Swedish or Finnish Swiss Thai (only for A22e) Turkish P/N (NMB) 02K5750 02K5745 02K5747 02K5751 02K5738 02K5735 02K5731 02K5729 02K5732 02K5734 02K5733 02K5753 02K5752 02K5749 02K5739 02K5730 02K5744 02K5737 02K5755 02K5742 02K5748 02K5754 02K5756 02K5740 02K5743 02K5736 02K5741 02K5757 02K5746 P/N (ALPS) 02K5718 02K5700 02K5703 02K5701 02K5715 02K5714 02K5728

128

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Parts list

Recovery CDs for i 1800 series

For Windows Me models
Language Japanese (for MT2655-P3J) Japanese (for MT2655-P7J, PAJ) P/N 27P1640 46P4407

Recovery CDs for A22e series

For Windows 98 models
Language Arabic Chinese, Simplified Chinese, Traditional Czech Danish Dutch English, U.K. English, U.S. Finnish French, Canadian French, European German Greek Hebrew Hungarian Italian Japanese Norwegian Polish Portuguese Russian Slovak Slovenian Spanish, European Spanish, Latin American Swedish Thai Turkish P/N 14P8675 46P4502 46P4498 14P8676 14P8654 14P8661 14P8650 14P8649 14P8660 14P8651 14P8655 14P8656 14P8680 14P8677 14P8681 14P8659 27P1950 14P8662 14P8678 14P8653 14P8682 14P8684 14P8683 14P8657 14P8652 14P8658 14P8685 14P8679

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129

Parts list

For Windows 2000 models

Language Arabic Czech Greek Hebrew Hungarian Polish Russian Slovak Slovenian Turkish Thai P/N 14P8735 14P8736 14P8740 14P8737 14P8741 14P8738 14P8742 14P8744 14P8743 14P8739 14P8745

For Windows 2000/Windows NT models

Language Chinese, Simplified Chinese, Traditional Dannish Dutch English, U.K. English, U.S. Finnish French, Canadian French, European German Italian Japanese Norwegian Portuguese Spanish, European Spanish, Latin American Swedish P/N 46P4504 46P4500 14P8702 14P8709 14P8698 14P8697 14P8708 14P8699 14P8703 14P8704 14P8707 27P1952 14P8710 14P8701 14P8705 14P8700 14P8706

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Parts list

Miscellaneous parts
FRU Screw kit (including nylon-coated screws): v M2.5 x 14 mm, bind head (15) v M2.5 x 4.8 mm, flat head (20) v M2.5 x 3.5 mm, flat head (10) v M2.0 x 13.5 mm, pan head (15) v M2.0 x 4.0 mm, small head (10) v Hex stud D-sub (10) v Coin screw (1) v Security screw (1) v Blank cap, enhanced port v Screw caps, rear v Screw caps v Screw caps (painted) v Screw caps (not painted) Base miscellaneous parts for A, B, C, D, E, K: v I/O plate v Spring, battery lock v Lid, docking FR v Lid, docking RR v Spring, lid docking v Spring, lid PC Card v Lid, PC Card v Rubber foot v ESD plate, audio v Insulator for base cover v Ultrabay 2000 bay eject lever v Spring, Ultrabay 2000 bay eject lever v Puller, Ultrabay 2000 bay v Label danger, backup battery v Thermal sponge v Knob, battery lock v Latch, battery lock v EMI plate, modem v EMI shield, battery bay v ESD plate, DIMM v ESD plate, docking connector v ESD plate, CPU v Screw caps v Screw caps, rear P/N 08K7139

08K7125

(continued)

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131

Parts list FRU Base miscellaneous parts for F, G, H, I, J, L, M: v I/O plate v Spring, battery lock v Lid, docking FR v Lid, docking RR v Spring, lid docking v Spring, lid PC Card v Lid, PC Card v Rubber foot v Rubber foot NBR v ESD plate, audio v Insulator for base cover v Ultrabay 2000 bay eject lever v Spring, Ultrabay 2000 bay eject lever v Puller, Ultrabay 2000 bay v Label danger, backup battery v Thermal sponge v Knob, battery lock v Latch, battery lock v EMI plate, modem v EMI shield, battery bay v ESD plate, DIMM v ESD plate, docking connector v ESD plate, CPU v Blank caps v Screw caps v Screw caps, rear System board miscellaneous parts: v Hex stud v PC Card insulator v Battery latch insulator v Keyboard connector guide v Shock rubber v Shock rubber 2.5 v Insulator, Docking connector v Insulator, Ultrabay 2000 connector v Insulator, I/O connector v Mini PCI shield v Hard-disk drive insulator v Sponge v Screw caps v Screw caps, rear P/N 26P9316

08K7126

(continued)

132

ThinkPad A21e, A22e, i 1800 (MT 2655/2663/2664)

Parts list FRU System miscellaneous parts for A, B, C (A21e): v (a) Hinge cover assembly v (k) Easy button cover v I/O card spacer v Cable, RJ11 to system board docking v (g) Backup battery holder v (f) Ultrabay 2000 guide rail v (i) Hard-disk bay guide rail v (b) Keyboard CRU insulator v Mini PCI guide v Keyboard support v (d) ESD plate spring CSB v (e) ESD plate CSB v (c) ESD fan cover v Screw caps v Screw caps, rear System miscellaneous parts for D, E (A22e): v (a) Hinge cover assembly v I/O card spacer v Cable, RJ11 to system board docking v (g) Backup battery holder v (f) Ultrabay 2000 guide rail v (i) Hard-disk bay guide rail v (b) Keyboard CRU insulator v Keyboard support v (d) ESD plate spring CSB v (e) ESD plate CSB v (c) ESD fan cover v (h) EMI plate, speaker v Screw caps v Screw caps, rear System miscellaneous parts for F, G, H, I, J (A22e): v (a) Hinge cover assembly v I/O card spacer v Cable, RJ11 to system board docking v (g) Backup battery holder v (f) Ultrabay 2000 guide rail v (h) Hard-disk bay guide rail v (b) Keyboard CRU insulator v Keyboard support v (c) ESD fan cover v (j)LCD connector holder v Screw caps v Screw caps, rear P/N 08K7129

26P9318

26P9319

(continued)

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133

Parts list FRU System miscellaneous parts for K (i 1800): v (a) Hinge cover assembly v (k) Easy button cover v I/O card spacer v Cable, RJ11 to system board docking v (g) Backup battery holder v (f) Ultrabay 2000 guide rail v (i) Hard-disk bay guide rail v (b) Keyboard CRU insulator v Mini PCI guide v Keyboard support v (d) ESD plate spring CSB v (e) ESD plate CSB v (c) ESD fan cover v Screw caps v Screw caps, rear System miscellaneous parts for L, M (i 1800): v (a) Hinge cover assembly for i-series v (k) Easy button cover for i-series v I/O card spacer v Cable, RJ11 to system board docking v (g) Backup battery holder v (f) Ultrabay 2000 guide rail v (i) Hard-disk bay guide rail v (b) Keyboard CRU insulator v Mini PCI guide v Keyboard support v (d) ESD plate spring CSB v (e) ESD plate CSB v (c) ESD fan cover v Grease v Screw caps v Screw caps, rear Miscellaneous parts, for I/O card v DC jack connector v Cable RJ11/45 to Mini PCI v Insulator, modular jack v Insulation tape v Screw caps v Screw caps, rear P/N 08K7351

26P9320

08K6683

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Parts list

Optional FRUs
FRU 256-MB SDRAM SO DIMM for F, G, H, I, J, L, M Ultrabay 2000 SuperDisk drive (LS120 2) Ultrabay 2000 SuperDisk drive (LS240) Ultrabay 2000 ZIP-250 drive Ultrabay 2000 2nd HDD adapter Hard-disk drive (10.0 GB), STD Hard-disk drive (10.0 GB), Hitachi Hard-disk drive (32.0 GB), STD Mini PCI combo card (3Com) Multiple battery charger ThinkPad Port Replicator Diskette drive cable Conversion adapter for diskette drive cable P/N 33L3070 05K9235 08K9615 00N8254 08K6067 08K9508 08K9531 08K9509 00N8117 02K6642 08N1536 27L0525 08K6360

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135

Parts list

Common parts list

Tools
Triconnector wrap plug PC test card Audio wrap cable USB parallel test cable Screwdriver kit Torque screwdriver 5mm socket wrench Screwdriver ThinkPad hardware maintenance diskette version 1.61 Note: Download the file from the Web site. 72X8546 35G4703 66G5180 05K2580 95F3598 05K4695 05K4694 27L8126

Power cords (system)

IBM power cords for a specific country are usually available only in that region: For 2-pin power cords:
Region Canada, United States of America Japan Argentina P/N 13H5264 13H5273 36L8870

For 3-pin power cords:

Region Australia, New Zealand Taiwan, Thailand Italy Denmark UK, Hong Kong European countries India, South Africa Israel Peoples Republic of China (other than Hong Kong) Switzerland P/N 76H3514 76H3516 76H3530 76H3520 76H3524 76H3518 76H3522 76H3532 02K0539 76H3528

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Notices

Notices
References in this publication to IBM products, programs, or services do not imply that IBM intends to make these available in all countries in which IBM operates. Any reference to an IBM product, program, or service is not intended to state or imply that only that IBM product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any of the intellectual property rights of IBM may be used instead of the IBM product, program, or service. The evaluation and verification of operation in conjunction with other products, except those expressly designated by IBM, are the responsibility of the user. IBM may have patents or pending patent applications covering subject matter in this document. The furnishing of this document does not give you any license to these patents. You can send license inquiries, in writing, to the IBM Director of Licensing, IBM Corporation, 500 Columbus Avenue, Thornwood, NY 10594, U.S.A.

Trademarks
The following terms are trademarks of the IBM Corporation in the United States or other countries or both: IBM ThinkPad TrackPoint ThinkLight OS/2 Asset ID Microsoft, Windows, Windows NT, and the Windows logo are trademarks of Microsoft Corporation in the United States and/or other countries. Pentium and Celeron are trademarks of Intel Corporation in the United States and/or other countries. (For a complete list of Intel trademarks, see the legal information on http://www.intel.com/) Other company, product, or service names may be the trademarks or service marks of others.

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137

Part Number: 24P2910

Printed in U.S.A.

(1P) P/N: 24P2910