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IBM Mobile Systems ThinkPad Computer Hardware Maintenance Manual

September 2003

This manual supports: ThinkPad A30, A30p, A31, A31p (MT 2652/2653/2654) ThinkPad Dock (MT 2631)

Note Before using this information and the product it supports, be sure to read the general information under "Notices" on page 186.

Second Edition (September 2003) 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 2003. All rights reserved. US Government Users Restricted Rights Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.

Contents
About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 . 3 . 3 . 3 . 4 . 4 . 4 . 16 . 16 . 17 . 18 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 devices that are sensitive to discharge . . . . . . . Grounding requirements . . . . Laser compliance statement. . . . General descriptions . . . . Read this first . . . . . . . What to do first . . . . . Related service information . . . Service web site . . . . . Restoring the preloaded system Passwords . . . . . . . Power management . . . . Checkout guide . . . . . . Testing the computer . . . . Detecting system information with Power system checkout . . . ThinkPad A30, A30p, A31, A31p Product overview . . . . . Specifications . . . . . Status indicators . . . . FRU Tests . . . . . . Fn key combinations . . . Symptom-to-FRU index . . . Numeric error codes . . . Error messages . . . . 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 Mini PCI adapter . . 1030 Communication daughter © Copyright IBM Corp. 2003

. . . . . . . . . . . . . . . . electorostatic . . . . . 19 . . . . . 20 . . . . . 21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PC-Doctor. . . . . . . . . . . . . . . . . . . . . . . . .

25 25 25 27 27 27 30 32 36 36 38 39 43 45 45 48 50 51 53 53 56 57 58 59 59 60 60 61 63 64 65 68

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . card (CDC)

iii

1040 Backup battery . . . . . 1050 DIMM . . . . . . . 1060 Hard-disk drive . . . . . 1070 Ultrabay Plus device . . . 1080 Ultrabay 2000 device . . . 1090 I/O plate . . . . . . . 1100 Keyboard . . . . . . 1110 Keyboard CRU insulator . . 1120 Keyboard bezel . . . . . 1130 Hinge cover . . . . . . 1140 Fan assembly . . . . . 1150 CPU . . . . . . . . 1160 Ultrabay Plus slot . . . . 1170 Ultrabay 2000 slot . . . 1180 Sub card for PC Card slot . 1190 Security chip . . . . . 1200 LCD assembly. . . . . 1210 System board . . . . . 1220 Ultrabay LED card . . . 1230 Speaker assembly . . . 1240 Antenna for Bluetooth . . 2010 Front bezel. . . . . . 2020 Inverter card . . . . . 2030 LCD panel . . . . . . 2040 Antenna assembly . . . 3010 ThinkPad Dock PCI cover . 3020 ThinkPad Dock top cover . Locations . . . . . . . . . Front view . . . . . . . Rear view . . . . . . . . Bottom view . . . . . . . Parts list . . . . . . . . . A30 and A30p series model matrix A31 and A31p series model matrix Overall . . . . . . . . LCD FRUs . . . . . . . Keyboard . . . . . . . . Recovery CDs . . . . . . Optional FRUs . . . . . . Miscellaneous parts . . . . . AC adapters . . . . . . . Common parts list . . . . . Notices . . . . . . . . . Trademarks . . . . . . .

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. 75 . 76 . 77 . 79 . 80 . 81 . 82 . 87 . 89 . 93 . 94 . 96 . 98 . 103 . 107 . 109 . 110 . 114 . 120 . 121 . 123 . 125 . 127 . 129 . 133 . 137 . 139 . 144 . 144 . 146 . 147 . 148 . 148 . 149 . 155 . 169 . 172 . 173 . 179 . 180 . 183 . 184 . 186 . 186

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About this manual
This manual contains service and reference information for IBM ThinkPad A30, A30p, A31, A31p (MT2652, 2653, 2654), and ThinkPad Dock (MT2631) products. Use this manual along with the advanced diagnostic tests to troubleshoot problems. The manual is divided into sections as follows: v The common sections provide general information, guidelines, and safety information required in servicing computers. v The product-specific section includes service, reference, and product-specific parts information.

Important This manual is intended for trained service personnel who are familiar with ThinkPad products. Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively. Before servicing an IBM ThinkPad product, be sure to review the safety information under "Safety notices: multilingual translations" on page 4, "Safety information" on page 16, and "Laser compliance statement" on page 21.

© Copyright IBM Corp. 2003

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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.ibm.com/pc/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 expense for replacing and servicing FRUs: 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. 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.

© Copyright IBM Corp. 2003

3

Important service information

Strategy for replacing a hard-disk drive
Always try to run a low-level format before replacing a hard-disk drive. Attention: The drive startup sequence in the computer you are servicing may have been changed. Be extremely careful during write operations such as copying, saving, or formatting. If you select an incorrect drive, data or programs can be overwritten.

How to use error messages
Use the error codes displayed on the screen to diagnose failures. 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

Safety notices: multilingual translations
In this manual, safety notices appear in English with a page number reference to the appropriate multilingual, translated safety notice found in this section. The following safety notices are provided in English, French, German, Hebrew, Italian, and Spanish.

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Safety notices

Safety notice 1

Before the computer is powered-on after FRU replacement, make sure all screws, springs, and other small parts are in place and are not left loose inside the computer. Verify this by shaking the computer and listening for rattling sounds. Metallic parts or metal flakes can cause electrical shorts. Avant de remettre l'ordinateur sous tension après remplacement d'une unité en clientèle, vérifiez que tous les ressorts, vis et autres pièces sont bien en place et bien fixées. Pour ce faire, secouez l'unité et assurez-vous qu'aucun bruit suspect ne se produit. Des pièces métalliques ou des copeaux de métal pourraient causer un court-circuit. Bevor nach einem FRU-Austausch der Computer wieder angeschlossen wird, muß sichergestellt werden, daß keine Schrauben, Federn oder andere Kleinteile fehlen oder im Gehäuse vergessen wurden. Der Computer muß geschüttelt und auf Klappergeräusche geprüft werden. Metallteile oder-splitter können Kurzschlüsse erzeugen.

Prima di accendere l'elaboratore dopo che é 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 all'interno dell'elaboratore. Verificare ciò scuotendo l'elaboratore 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 demás piezas pequeñas se encuentran en su sitio y no se encuentran sueltas dentro del sistema. Compruébelo agitando el sistema y escuchando los posibles ruidos que provocarían. Las piezas metálicas pueden causar cortocircuitos eléctricos.

Introduction

5

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 démontez pas, ne les rechargez pas, ne les exposez ni au feu ni à l'eau. Ne les mettez pas en court-circuit. Pour les mettre au rebut, conformez-vous à la réglementation en vigueur. Lorsque vous remplacez la pile de sauvegarde ou celle de l'horloge temps réel, veillez à n'utiliser que les modèles cités dans la liste de pièces détachées adéquate. Une batterie ou une pile inappropriée risque de prendre feu ou d'exploser. 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 Verätzungen verursachen. Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Beim Ersetzen der Bereitschafts-oder Systembatterie nur Batterien des Typs verwenden, der in der Ersatzteilliste aufgeführt ist. Der Einsatz falscher Batterien kann zu Entzündung oder Explosion führen. (continued)

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Safety notices

(continuation of safety notice 2)

Alcune batterie di riserva contengono una piccola quantità di nichel e cadmio. Non smontarle, ricaricarle, gettarle nel fuoco o nell'acqua né cortocircuitarle. Smaltirle secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali). Quando si sostituisce la batteria dell'RTC (real time clock) o la batteria di supporto, utilizzare soltanto i tipi inseriti nell'appropriato Catalogo parti. L'impiego di una batteria non adatta potrebbe determinare l'incendio o l'esplosione della batteria stessa. Algunas baterías de reserva contienen una pequeña cantidad de níquel y cadmio. No las desmonte, ni recargue, ni las eche al fuego o al agua ni las cortocircuite. Deséchelas tal como dispone la normativa local. Utilice sólo baterías que se encuentren en la lista de piezas. La utilización de una batería no apropiada puede provocar la ignición o explosión de la misma.

Introduction

7

Safety notices

Safety notice 3

DANGER

The battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire or water, or short-circuit it. Dispose of the battery pack as required by local ordinances or regulations. Use only the battery in the appropriate parts listing when replacing the battery pack. Use of an incorrect battery can result in ignition or explosion of the battery. La batterie contient du nickel. Ne la démontez pas, ne l'exposez ni au feu ni à l'eau. Ne la mettez pas en court-circuit. Pour la mettre au rebut, conformez-vous à la réglementation en vigueur. Lorsque vous remplacez la batterie, veillez à n'utiliser que les modèles cités dans la liste de pièces détachées adéquate. En effet, une batterie inappropriée risque de prendre feu ou d'exploser. Akkus enthalten geringe Mengen von Nickel. Sie dürfen nicht zerlegt, wiederaufgeladen, kurzgeschlossen, oder Feuer oder Wasser ausgesetzt werden. Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Beim Ersetzen der Batterie nur Batterien des Typs verwenden, der in der Ersatzteilliste aufgeführt ist. Der Einsatz falscher Batterien kann zu Entzündung oder Explosion führen.

(continued)

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Safety notices

(continuation of safety notice 3) La batteria contiene piccole quantità di nichel. Non smontarla, gettarla nel fuoco o nell'acqua né cortocircuitarla. Smaltirla secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali). Quando si sostituisce la batteria, utilizzare soltanto i tipi inseriti nell'appropriato Catalogo parti. L'impiego di una batteria non adatta potrebbe determinare l'incendio o l'esplosione della batteria stessa. Las baterías contienen pequeñas cantidades de níquel. No las desmonte, ni recargue, ni las eche al fuego o al agua ni las cortocircuite. Deséchelas tal como dispone la normativa local. Utilice sólo baterías que se encuentren en la lista de piezas al sustituir la batería. La utilización de una batería no apropiada puede provocar la ignición o explosión de la misma.

Introduction

9

Safety notices

Safety notice 4

DANGER

The lithium battery can cause a fire, an explosion, or a severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 100°C (212°F), incinerate it, or expose its cell contents to water. Dispose of the battery as required by local ordinances or regulations. Use only the battery in the appropriate parts listing. Use of an incorrect battery can result in ignition or explosion of the battery. La pile de sauvegarde contient du lithium. Elle présente des risques d'incendie, d'explosion ou de brûlures graves. Ne la rechargez pas, ne retirez pas son connecteur polarisé et ne la démontez pas. Ne l'exposez pas à une temperature supérieure à 100°C, ne la faites pas brûler et n'en exposez pas le contenu à l'eau. Mettez la pile au rebut conformément à la réglementation en vigueur. Une pile inappropriée risque de prendre feu ou d'exploser. Die Systembatterie ist eine Lithiumbatterie. Sie kann sich entzünden, explodieren oder schwere Verbrennungen hervorrufen. Batterien dieses Typs dürfen nicht aufgeladen, zerlegt, über 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 örtlichen Bestimmungen für Sondermüll beachten. Beim Ersetzen der Batterie nur Batterien des Typs verwenden, der in der Ersatzteilliste aufgeführt ist. Der Einsatz falscher Batterien kann zu Entzündung oder Explosion führen. (continued)

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Safety notices

(continuation of safety notice 4)

La batteria di supporto e una batteria al litio e puo incendiarsi, esplodere o procurare gravi ustioni. Evitare di ricaricarla, smontarne il connettore polarizzato, smontarla, riscaldarla ad una temperatura superiore ai 100 gradi centigradi, incendiarla o gettarla in acqua. Smaltirla secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali). L'impiego di una batteria non adatta potrebbe determinare l'incendio o l'esplosione della batteria stessa. La batería de repuesto es una batería 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 100°C (212°F), ni la incinere ni exponga el contenido de sus celdas al agua. Deséchela tal como dispone la normativa local.

Introduction

11

Safety notices

Safety notice 5

If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water for at least 15 minutes. Seek medical care if any symptoms from the fluid are present after washing. Si le panneau d'affichage à cristaux liquides se brise et que vous recevez dans les yeux ou sur les mains une partie du fluide, rincez-les abondamment pendant au moins quinze minutes. Consultez un médecin si des symptômes persistent après le lavage. Die Leuchtstoffröhre im LCD-Bildschirm enthält Quecksilber. Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Der LCD-Bildschirm besteht aus Glas und kann zerbrechen, wenn er unsachgemäß behandelt wird oder der Computer auf den Boden fällt. Wenn der Bildschirm beschädigt ist und die darin befindliche Flüssigkeit in Kontakt mit Haut und Augen gerät, sollten die betroffenen Stellen mindestens 15 Minuten mit Wasser abgespült und bei Beschwerden anschließend ein Arzt aufgesucht werden.

Nel caso che caso l'LCD 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 áreas afectadas con agua durante 15 minutos como mínimo. Obtenga atención medica si se presenta algún síntoma del fluido despues de lavarse.

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Safety notices

Safety notice 6

DANGER

To avoid shock, do not remove the plastic cover that protects the lower part of the inverter card. Afin d'éviter tout risque de choc électrique, ne retirez pas le cache en plastique protégeant la partie inférieure de la carte d'alimentation. Aus Sicherheitsgründen die Kunststoffabdeckung, die den unteren Teil der Spannungswandlerplatine umgibt, nicht entfernen.

Per evitare scosse elettriche, non rimuovere la copertura in plastica che avvolge la parte inferiore della scheda invertitore. Para evitar descargas, no quite la cubierta de plástico que rodea la parte baja de la tarjeta invertida.

Introduction

13

Safety notices

Safety notice 7

DANGER

Though the main batteries have low voltage, a shorted or grounded battery can produce enough current to burn personnel or combustible materials. Bien que le voltage des batteries principales soit peu élevé, le court-circuit ou la mise à la masse d'une batterie peut produire suffisamment de courant pour brûler des matériaux combustibles ou causer des brûlures corporelles graves. Obwohl Hauptbatterien eine niedrige Spannung haben, können sie doch bei Kurzschluß oder Erdung genug Strom abgeben, um brennbare Materialien zu entzünden oder Verletzungen bei Personen hervorzurufen.

Sebbene le batterie di alimentazione siano a basso voltaggio, una batteria in corto circuito o a massa può fornire corrente sufficiente da bruciare materiali combustibili o provocare ustioni ai tecnici di manutenzione. Aunque las baterías principales tienen un voltaje bajo, una batería cortocircuitada o con contacto a tierra puede producir la corriente suficiente como para quemar material combustible o provocar quemaduras en el personal.

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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 unité remplaçable en clientèle, mettez le système hors tension, débranchez tous les cordons d'alimentation des socles de prise de courant, retirez la batterie et déconnectez tous les cordons d'interface. Die Stromzufuhr muß 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 eléctrica, quite la batería y, a continuación, desconecte cualquier cable de conexión entre dispositivos.

Introduction

15

Safety information

Safety information
The following section presents 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 object that weighs 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 customer's 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.

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Safety information

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.

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.

Introduction

17

Safety information

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 safety sections of maintenance information. Use extreme care when measuring high voltages. v Regularly inspect and maintain your electrical hand tools for safe operational condition. v Do not use worn or broken tools and testers. v Never assume that power has been disconnected from a circuit. First, check that it has been powered off. v Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, nongrounded power extension cables, power surges, and missing safety grounds. v Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is conductive; such touching can cause personal injury and machine damage. v Do not service the following parts with the power on when they are removed from their normal operating places in a 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.

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Safety information

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 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 devices that are sensitive to electorostatic discharge
Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD.) ESD damage can occur when there is a difference in charge between objects. Protect against ESD

Introduction

19

Safety information

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. 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.

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Laser compliance statement

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 a 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

21

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 exposição à radiação.

Pour éviter tout risque d'exposition au rayon laser, respectez les consignes de réglage et d'utilisation des commandes, ainsi que les procédures décrites. Werden Steuer- und Einstellelemente anders als hier festgesetzt verwendet, kann gefährliche Laserstrahlung auftreten.

L'utilizzo di controlli, regolazioni o l'esecuzione di procedure diverse da quelle specificate possono provocare l'esposizione a.

El uso de controles o ajustes o la ejecución de procedimientos distintos de los aquí especificados puede provocar la exposición 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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Some CD-ROM drives, DVD-ROM drives, or 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. Radiação por raio laser ao abrir. Não olhe fixo no feixe de luz, não olhe diretamente por meio de instrumentos óticos e evite exposição direta com o feixe de luz.

Rayonnement laser si carter ouvert. Évitez de fixer le faisceau, de le regarder directement avec des instruments optiques, ou de vous exposer au rayon. Laserstrahlung bei geöffnetem Gerät. Nicht direkt oder über optische Instrumente in den Laserstrahl sehen und den Strahlungsbereich meiden. Kinyitáskor lézersugár ! Ne nézzen bele se szabad szemmel, se optikai eszközökkel. Kerülje a sugárnyalábbal való érintkezést !. Aprendo l'unità vengono emesse radiazioni laser. Non fissare il fascio, non guardarlo direttamente con strumenti ottici e evitare l'esposizione diretta al fascio.

Radiación láser al abrir. No mire fijamente ni examine con instrumental óptico el haz de luz. Evite la exposición directa al haz.

Introduction

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Laser compliance statement

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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. Drives in the computer that you are servicing sequence 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 © Copyright IBM Corp. 2003

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__ 4. Date of purchase __ 5. Failure symptoms, error codes appearing on the display, and beep symptoms __ 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. Customer's 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 "Restoring the preloaded system" v "Passwords" on page 30 v "Power management" on page 32

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

Restoring the preloaded system
If the data on a hard-disk drive is damaged or accidentally erased, you can restore the software that was shipped with the computer. This software includes the pre-installed operating system, applications, and device drivers. To restore the pre-installed software, you can use either the Product Recovery program or a recovery CD.

Ordering the recovery CD When the hard-disk drive is replaced because of a failure, no Product Recovery program is on the new hard disk. In this case, you must use the Product Recovery CD for the computer. Order the recovery CD and the hard-disk drive at the same time so that you can recover the new hard-disk drive with the pre-installed software when they arrive. For information on which CD to order, see "Recovery CDs" on page 173 The Product Recovery program is in the service partition, a section of the hard-disk drive that is not displayed by Windows Explorer. Attention: All of the files on the primary hard-disk partition (usually drive C) will be lost in the recovery process. Be sure to back up copies of the files you have saved on your drive C before you begin.

Creating a Recovery Repair diskette
If the operating system cannot boot normally, or if you cannot get access to the Product Recovery program, you can use the Recovery Repair diskette to boot the computer. Make a Recovery Repair diskette and save it for future use. To make a Recovery Repair diskette, do the following: 1. Shut down and restart the computer. General descriptions

27

Related service information

2. 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 opens. Note: If you are prompted to select the operating system, select one you want to recover. Then the Product Recovery program main menu opens. 3. Select System Utilities from the main menu. Press Enter. 4. Select Create a Recovery Repair diskette. Press Enter. 5. Follow the on-screen instructions. 6. When the process is completed, label the diskette "Recovery Repair diskette" and save it for future use.

Product Recovery program
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. If you are using Windows XP, three messages (F1, F11, and F12) appear on the screen for a few seconds. One of them is "Press F11 to invoke the IBM Product Recovery program". While the message is displayed, quickly press F11. If you are using Windows 2000 or another operating system, the startup screen is displayed first, and then the message "To start the Product Recovery program, press F11" at the top of the screen. Here again it appears very briefly; watch for it, and press F11 before it disappears. Note: If this message is not displayed, you can use a Recovery Repair diskette to get access to the Product Recovery program. (For using a Recovery Repair diskette, see "To use the Recovery Repair diskette:" on page 30.) 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. 6. When the Product Recovery program finishes running, the computer will restart with the pre-installed operating system, drivers, and software.

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Note: Network drivers are not automatically restored with Windows NT 4.0; you will need to reinstall them. Note: If you use Windows 2000 or Windows 98, restart the system by pressing Ctrl+Alt+Del or by turning the computer off and then on again. The computer will restart with the pre-installed operating system, drivers, and software.

Using the recovery CD
To create the service partition and install the preloaded system from the recovery CD, do the following: To create the service partition: 1. Erase all partitions on the hard-disk drive, using FDISK or a similar application. 2. Boot with the recovery CD (and the boot diskette if required.) 3. Following message is displayed: "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 do not receive this message; go to step 1. 4. Press Y key. The service partition is created and loaded with the Product Recovery program files. Note: If you do not want to create the service partition, press N key, and then go to step 8. 5. At next window, press Enter to continue. v The service partition is created. The system automatically reboots during this process. v The recovery process copies some files to the service partition, and PKUNZIPs others. v Follow the prompts. You may be prompted to change CDs. v When the process is complete, the system reboots. Continue to step 6 to install preloaded system. Install preloaded system from CD: 6. Boot with the recovery CD (and the boot diskette if required.) 7. If the hard-disk drive is blank, the following message is displayed: "Your computer originally included a Product Recovery program ... Reinstall the Product Recovery program? (Y/N) [ ]". v To install the service partition, go to step 4.

General descriptions

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Related service information

v To preload the hard-disk drive without installing the service partition, press N key. 8. If you get a message asking which operating system to install, select the proper operating system and press Enter. 9. A message is displayed: "Full Recovery:". Press Enter to select. 10. On each of the next three windows, press the Y key. 11. Follow the prompts to complete the recovery.

To use the Recovery Repair diskette:
1. Shut down and turn off the computer. 2. Insert the Recovery Repair diskette into the drive, and then turn on the computer. 3. 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). If any of these passwords has been set, a prompt for it appears on the screen whenever the computer is turned on. The computer does not start until the password is entered. Exception: If only an SVP is installed, the password prompt does not appear when the operating system is booted.

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 HDP--for the user v Master HDP--for 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; the system administrator enters both in the same operation. The system administrator then provides the user HDP to the system user.

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Attention: If the user HDP has been forgotten, check whether a master HDP has been set. If it has, it can be used for 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, or to 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 get access to 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 no SVP has been set: 1. Turn off the computer. 2. Remove the battery pack. For how to remove the battery pack, see "1010 Battery pack" on page 64. 3. Remove the backup battery. For how to remove the backup battery, see "1040 Backup battery" on page 75. 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 an SVP has been set and is 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. At the Enter Current Password field, enter the SVP. 6. When the Enter New Password field opens, leave it blank and press Enter twice. 7. In the Changes have been saved window, press Enter.

General descriptions

31

Related service information

8. Press F10; then, in the Setup confirmation window, select Yes .

How to remove the hard-disk password
Attention: If User only mode is selected and the user HDP has been forgotten and cannot be made available to the servicer, IBM does not provide any services to reset the user HDPs or to recover data from the hard-disk drive. The hard-disk drive can be replaced for a scheduled fee. To remove a user HDP that has been forgotten, when the SVP and the master HDP are 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 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.

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 NT. v Standby mode is called suspend mode in 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.

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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 is powered off. 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 do not 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.

General descriptions

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Related service information

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 the 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. 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 NTFS format, 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: If the computer enters the hibernation mode while it is docked to the docking station, do not undock it from the docking station before resuming normal operation. If you do undock it and then try to resume normal operation, you will get an error message, and you will have to restart the system. 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. v If you are using the ACPI operating system and have defined one of the following actions as the event that causes the system to go into hibernation mode, perform that action. Closing the lid. Pressing the power button. Pressing Fn+F4 keys.

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Related service information

Also, the computer goes into hibernation mode automatically in either of the following conditions: v If a "hibernation time" has been set on the timer, and the user does not do any operation with the keyboard, the TrackPoint, the hard-disk drive, the parallel connector, or the diskette drive within that time. v If 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. 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.

General descriptions

35

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 45. 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 device, install it in the Ultrabay 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 39, and check the power sources.

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If an error code appears, go to "Symptom-to-FRU index" on page 53. 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 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-120/240 Drive Communication Wireless LAN Memory Test Full Memory Test Quick Interactive Tests v v v v v v v v Keyboard Video Internal Speaker Mouse Diskette System Load CD-ROM/DVD Test Actiontec Wireless Radio

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 Video Adapter test supports only the LCD display on the ThinkPad computer. Before running PC-Doctor DOS, detach the external Monitor. v To test ZIP Drive or LS-120/240 Drive, each media is needed to be inserted before start testing. v To test Digital Signature Chip, the chip must be enabled and initialized. v When Legacy Floppy Drives is enabled in the IBM BIOS Setup Utility, Diskette Drives test is activated even if no legacy diskette drive is attached to the ThinkPad computer.

General descriptions

37

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 LS-120/240 Drive Communication Wireless LAN Memory Test - Full Memory Test - Quick PC-DOCTOR 2.0 Copyright 2001 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

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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 40 v "Checking the battery pack" on page 40 v "Checking the backup battery" on page 41

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

Voltage (V dc) +15.5 to +17.0 Ground

(16 - 10 V)
3. If the voltage is not correct, replace the ac adapter. 4. If the voltage is acceptable, do the following: v Replace the system board. v If the problem persists, go to "Product overview" on page 45. Note: Noise from the ac adapter does not always indicate a defect.

2 1

1 2

General descriptions

39

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

3

2

1(+)

1 5

3. If the voltage is less than +11.0 V dc, the battery pack has been discharged.

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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. 4. 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 . 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 64). 4. Remove the backup battery (see "Checking the battery pack" on page 40). 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.

General descriptions

41

Checkout guide

42

MT 2652/2653/2654

ThinkPad A30, A30p, A31, A31p
Product overview . . . . . . . . . . . Specifications . . . . . . . . . . . Status indicators . . . . . . . . . . FRU Tests . . . . . . . . . . . . Fn key combinations . . . . . . . . . Symptom-to-FRU index . . . . . . . . . Numeric error codes . . . . . . . . . Error messages . . . . . . . . . . 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 Mini PCI adapter . . . . . . . . 1030 Communication daughter card (CDC) . . Ethernet daughter card . . . . . . . Modem daughter card . . . . . . . Bluetooth daughter card . . . . . . . 1040 Backup battery . . . . . . . . . 1050 DIMM . . . . . . . . . . . 1060 Hard-disk drive . . . . . . . . . 1070 Ultrabay Plus device . . . . . . . 1080 Ultrabay 2000 device . . . . . . . 1090 I/O plate . . . . . . . . . . . 1100 Keyboard . . . . . . . . . . 1110 Keyboard CRU insulator . . . . . . 1120 Keyboard bezel . . . . . . .