User manual IBM THINKPAD G40 - Hardware Guide

ThinkPad Computer Hardware Maintenance Manual July 2005 This manual supports: ThinkPad G40, G41 Note Before using this information and the product it supports, be sure to read the general information under "Notices" on page 156. First Edition (July 2005) © Copyright Lenovo 2005. Portions © Copyright International Business Machines Corporation 2005. All rights reserved. U.S. GOVERNMENT USERS ­ RESTRICTED RIGHTS: Our products and/or services are provided with RESTRICTED RIGHTS. Use, duplication or disclosure by the Government is subject to the GSA ADP Schedule contract with Lenovo Group Limited, if any, or the standard terms of this commercial license, or if the agency is unable to accept this Program under these terms, then we provide this Program under the provisions set forth in Commercial Computer Software­Restricted Rights at FAR 52.227-19, when applicable, or under Rights in Data-General, FAR 52.227.14 (Alternate III). Contents About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 .3 .3 .3 .4 .4 .4 . 16 . 16 . 17 . 19 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 G40, G41 . . . . 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 Hard disk drive . . . . . . . . . . . . . . . . . . . . . . . .... .... .... .... electrostatic . . . . . 20 . . . . . 21 . . . . . 21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... .... .... .... .... .... .... .... .... .... PC-Doctor . .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 25 25 28 28 28 30 33 35 35 37 38 43 45 45 47 49 51 52 52 56 58 58 59 60 60 61 61 62 65 66 67 © Lenovo 2005. Portions © IBM Corp. 2005. iii 1030 DIMM door . . . . . . . . . 1040 DIMM . . . . . . . . . . 1050 Modem daughter card (MDC) . . . 1060 Backup battery . . . . . . . . 1070 Keyboard . . . . . . . . . 1080 Middle cover . . . . . . . . 1090 Hinge cover . . . . . . . . . 1095 FDD assembly . . . . . . . . 1100 Blank bezel FDD assembly . . . . 1110 VGA heatsink assembly . . . . . 1120 VGA card assembly . . . . . . 1130 CD-ROM/DVD drive and ODD bracket . 1140 Mini PCI adapter . . . . . . . 1150 PC card slot assembly . . . . . . 1160 LCD and Keyboard bezel assembly . . 1170 LCD assembly . . . . . . . . 1180 Keyboard bezel . . . . . . . . 1190 Fan assembly . . . . . . . . 2000 Fan (CPU 3 GHz) and CPU fixture . . 2010 CPU . . . . . . . . . . . 2020 CD-ROM/DVD drive bracket . . . . 2030 FDD bracket . . . . . . . . 2040 System board . . . . . . . . 2050 Lower case assembly . . . . . 2060 Modem cable . . . . . . . . 2070 PC card slot assembly . . . . . 2080 LCD front bezel . . . . . . . 2090 Inverter card . . . . . . . . 3000 Speaker assembly . . . . . . 3010 LCD cable assembly . . . . . . 3020 Wireless antenna and rear cover . . 3030 LCD panel and hinge assembly . . . Locations . . . . . . . . . . . . Front view . . . . . . . . . . . Rear view . . . . . . . . . . . Bottom view . . . . . . . . . . Parts list . . . . . . . . . . . . G40, G41 series . . . . . . . . . Overall . . . . . . . . . . . LCD FRUs . . . . . . . . . . Keyboard . . . . . . . . . . . Recovery CDs . . . . . . . . . Miscellaneous parts . . . . . . . . AC adapters . . . . . . . . . . Telephone cable . . . . . . . . . Optional FRUs . . . . . . . . . Common parts list . . . . . . . . Notices . . . . . . . . . . . . Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 . 70 . 71 . 72 . 73 . 75 . 76 . 77 . 78 . 79 . 80 . 81 . 82 . 83 . 86 . 89 . 92 . 94 . 96 . 98 . 99 . 100 . 101 . 102 . 103 . 104 . 105 . 106 . 107 . 108 . 110 . 111 . 112 . 112 . 113 . 114 . 115 . 115 . 139 . 146 . 149 . 150 . 153 . 153 . 153 . 154 . 154 . 156 . 158 iv ThinkPad G40, G41 About this manual This manual contains service and reference information for ThinkPad G40 and G41 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 ThinkPad products, 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. © Lenovo 2005. Portions © IBM Corp. 2005. 1 2 ThinkPad G40, G41 Introduction Important service information Important BIOS and device driver fixes are customer-installable. The BIOS and device drivers are posted on the customer support site http://www.lenovo.com/think/support Advise customers to contact the Customer Support Center at 800-426-7378 if they need assistance in obtaining or installing any diskette fixes. Customers in Canada should call the Customer Support Center at 800-565-3344 for assistance or download information. Strategy for replacing FRUs Before replacing parts Make sure that all software 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. Loading Setup Defaults or replacing the system board may alter the settings. Note the current configuration settings (using the BIOS Setup Utility); then, when service has been completed, verify that those settings remain in effect. © Lenovo 2005. Portions © IBM Corp. 2005. 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. 4 ThinkPad G40, G41 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) 6 ThinkPad G40, G41 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) 8 ThinkPad G40, G41 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) 10 ThinkPad G40, G41 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. 12 ThinkPad G40, G41 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. 14 ThinkPad G40, G41 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 safety information with which you need to be familiar before you service a ThinkPad 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. 16 ThinkPad G40, G41 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. v Fan louvers on the machine help to prevent overheating of internal components. Do not obstruct fan louvers or cover them with labels or stickers. Warning Handling the cord on this product or cords associated with accessories sold with this product will expose you to lead, a chemical known to the state of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling. 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: Introduction 17 Safety information ­ 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 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. 18 ThinkPad G40, G41 Safety information 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-ThinkPad 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 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-ThinkPad alterations. Use good judgment as to the safety of any non-ThinkPad 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. Introduction 19 Safety information 8. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with. Handling devices that are sensitive to electrostatic 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 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. 20 ThinkPad G40, G41 Safety information ­ 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 models of ThinkPad computer are equipped from the factory with an optical storage device such as a CD-ROM drive or a DVD-ROM drive. Such devices are also sold separately as options. If one of these drives is installed, it 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 If a CD-ROM drive, a DVD-ROM drive, or another laser device 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, the DVD-ROM drive, or any other optical storage device could result in exposure to hazardous laser radiation. There are no serviceable parts inside those drives. Do not open. 22 ThinkPad G40, G41 Laser compliance statement A CD-ROM drive, a DVD-ROM drive, or any other storage device installed may 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 23 Laser compliance statement 24 ThinkPad G40, G41 General descriptions The desciptions in this chapter apply to any ThinkPad model that has the PC-Doctor® for 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 write operations such as copying, saving, or formatting. The drive startup sequence in the computer you are servicing might have been changed. 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 © Lenovo 2005. Portions © IBM Corp. 2005. 25 Read this first __ 3. Date on which the machine failed __ 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. 26 ThinkPad G40, G41 Read this first v If the spindle of a hard disk drive becomes noisy, it may have been subjected to excessive force, or dropped. General descriptions 27 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 33 Service Web site When the latest maintenance diskette and the system program service diskette become available, they will be posted on http://www.lenovo.com/think/spm 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, and the latest procedure on how to do so, see "Recovery CDs" on page 150. The Product Recovery program is in the Predesktop Area, a section of the hard disk drive that is not displayed by Windows Explorer. Note: The recovery process might take up to 2 hours. 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. To use the Product Recovery program to install your pre-installed software, do the following: 1. If possible, save all your files to media other than your hard disk. 2. Turn off your computer. 28 ThinkPad G40, G41 Related service information 3. Turn on your computer. At the prompt, press the Access IBM button. (The prompt "To interrupt normal startup, press the blue Access IBM button" appears for only a few seconds. You must press the Access IBM button quickly.) The Predesktop Area appears on the screen. Next, double-click the "Recover to factory contents" icon. The Product Recovery program main menu opens. 4. Select the recovery options you want, and then follow the instructions on the screeen. 5. When the Product Recovery program finishes, your computer will restart and begin the configuration process. Using the recovery CD You can delete the Predesktop Area partition by going into the BIOS Setup Utility (F1 at IBM Splash Screen), and then choosing Security -> IBM Predesktop Area --> Disabled. This will make the Predesktop Area available to FDISK. If you choose Disabled, the following warning appears: Attention! If you select Disabled, the IBM Predesktop Area will be visible and can be reclaimed by the OS. Once the area is overwritten by OS tools, it can't be used with Normal or Secure again and you will need to obtain a Recovery CD to retrieve original HDD. Please confirm that you wish to select Disabled. FDISK will not delete the Predesktop Area unless you do this, because it is not visible. You would have to use ThinkPad Maintenance Diskette to completely wipe the drive. To create the Predesktop Area and install the preloaded system from the recovery CD, do the following: To create the Predesktop Area: 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. The 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 partition, you do not receive this message; go to step 1. 4. Press the Y key. The Predesktop Area is created and loaded with the Product Recovery program files. General descriptions 29 Related service information Note: If you do not want to create the Predesktop Area, press the N key, and then go to step 8. 5. At the next window, press Enter to continue. v The Predesktop Area is created. The system automatically reboots during this process. v The recovery process copies some files to the Predesktop Area, 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 the preloaded system from the 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 Predesktop Area, go to step 4. v To preload the hard disk drive without installing the Predesktop Area, press the 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. 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. 30 ThinkPad G40, G41 Related service information 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. 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, neither Lenovo nor Lenovo authorized servicers 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 BIOS Setup Utility. The SVP must be entered in order to get access to the 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 has been 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 66. 3. Remove the backup battery. For how to remove the backup battery, see "1060 Backup battery" on page 72. General descriptions 31 Related service information 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; then, while the "To interrupt normal startup, press F1" message is displayed at the lower-left of the screen, press F1. 2. Enter the SVP. Select Start setup utility. 3. Select Security, using the cursor keys to move down the menu. 4. Select Password. 5. Select Power-On Password. 6. At the Enter Current Password field, enter the SVP. 7. When the Enter New Password field opens, leave it blank and press Enter twice. 8. In the Changes have been saved window, press Enter. 9. 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 neither Lenovo nor Lenovo authorized servicers 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. Turn on the computer; then, while the "To interrupt normal startup, press the blue Access IBM button" message is displayed at the lower-left of the screen, press the Access IBM button. 2. Enter Master HDP. Select Start setup utility. Enter SVP. 3. Select Security, using the cursor keys to move down the menu. 4. Select Password. 5. Select Hard-disk x password, where x is the letter of the hard disk drive. A pop-up window opens. 6. Select Master HDP. 7. Enter the master HDP; then leave the New Password field blank and press Enter twice. 8. Press F10. 9. Select Yes in the Setup Configuration window. 32 ThinkPad G40, G41 Related service information 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. Screen blank mode Screen blank mode has three variants, as follows: 1. 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. 2. 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.) Hibernation mode 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. General descriptions 33 Related service information 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 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. 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. 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. 34 ThinkPad G40, G41 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 ThinkPad products. The use of non-ThinkPad 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® for 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 BIOS Setup Utility before you run PC-Doctor. On the 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. 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 38, and check the power sources. If an error code appears, go to "Symptom-to-FRU index" on page 52. On the first screen, select the model and press Enter. Follow the instructions on the screen. 2. The main panel of PC-Doctor appears. General descriptions 35 Checkout guide 3. Select Diagnostics with the arrow keys, and press Enter. A pull-down menu appears. (Its exact form depends on the model.) Note: PC-Doctor menu does not mean the formal support device list. Some unsupported device name may appear in the PC-Doctor menu. The options on the test menu are as follows: Diagnostics v v v v v v v v v v v v v Run Normal Test Run Quick Test CPU/Coprocessor Systemboard Video Adapter Parallel Ports Fixed Disks Diskette Drives Other Devices 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 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 for DOS, detach the external monitor. 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. 36 ThinkPad G40, G41 Checkout guide 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 37 Checkout guide Power system checkout To verify a symptom, do the following: 1. Power off the computer. 2. Remove the battery pack. 3. Connect the ac adapter. 4. 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 39 v "Checking the battery pack" on page 39 v "Checking the backup battery" on page 40 Checking the ac adapter You are here because the computer fails only when the ac adapter is used: 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) Vcc_+ 16V Ground Vcc_+ 16V Ground 1 3 4 2 2 3 4 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. 38 ThinkPad G40, G41 Checkout guide v If the problem persists, go to "Product overview" on page 45. Note: Noise from the ac adapter does not always indicate a defect. 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: General descriptions 39 Checkout guide Terminal 1 5 Voltage (V dc) + 0 to + 12.6 (Li-ion) Ground 3. If the voltage is less than +11.0 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 +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 The backup battery is rechargeable. To check 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 66). 4. Remove the backup battery (see "Checking the battery pack" on page 39). 5. Measure the voltage of the backup battery. See the following figure. Terminal + - Voltage (V dc) +2.5 to +3.2 Ground v If the voltage is not correct, recharge the backup battery by connecting the ac adapter to the computer for one hour. v If the voltage is still not correct, replace the backup battery. 40 ThinkPad G40, G41 Checkout guide v If the backup battery discharges quickly after replacement, replace the system board. Note: The backup battery, which is used to preserve configuration information, such as the date and time while the computer is turned off, is depleted. General descriptions 41 Checkout guide 42 ThinkPad G40, G41 ThinkPad G40, G41 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 . . . . . . . . Reading or writing the ECA information . . Removing and replacing a FRU. . . . . . . 1010 Battery pack. . . . . . . . . . 1020 Hard disk drive . . . . . . . . . 1030 DIMM door . . . . . . . . . . 1040 DIMM . . . . . . . . . . . 1050 Modem daughter card (MDC) . . . . 1060 Backup battery . . . . . . . . . 1070 Keyboard . . . . . . . . . . 1080 Middle cover . . . . . . . . . 1090 Hinge cover . . . . . . . . . . 1095 FDD assembly . . . . . . . . . 1100 Blank bezel FDD assembly . . . . . 1110 VGA heatsink assembly . . . . . . 1120 VGA card assembly . . . . . . . 1130 CD-ROM/DVD drive and ODD bracket . . 1140 Mini PCI adapter . . . . . . . . 1150 PC card slot assembly . . . . . . . 1160 LCD and Keyboard bezel assembly . . . 1170 LCD assembly . . . . . . . . . 1180 Keyboard bezel . . . . . . . . . 1190 Fan assembly . . . . . . . . . 2000 Fan (CPU 3 GHz) and CPU fixture . . . 2010 CPU . . . . . . . . . . . . 2020 CD-ROM/DVD drive bracket . . . . . 2030 FDD bracket . . . . . . . . . 2040 System board . . . . . . . . . 2050 Lower case assembly . . . . . . 2060 Modem cable . . . . . . . . . 2070 PC card slot assembly . . . . . . 2080 LCD front bezel . . . . . . . . 2090 Inverter card . . . . . . . . . © Lenovo 2005. Portions © IBM Corp. 2005. 45 45 47 49 51 52 52 56 58 58 59 60 60 61 61 62 62 . 63 . 63 . 65 . 66 . 67 . 69 . 70 . 71 . 72 . 73 . 75 . 76 . 77 . 78 . 79 . 80 . 81 . 82 . 83 . 86 . 89 . 92 . 94 . 96 . 98 . 99 . 100 . 101 . 102 . 103 . 104 . 105 . 106 . . . . . . . . . . . . . . . . 43 3000 Speaker assembly . . . . . 3010 LCD cable assembly . . . . . 3020 Wireless antenna and rear cover . 3030 LCD panel and hinge assembly . . Locations . . . . . . . . . . . Front view . . . . . . . . . . Rear view . . . . . . . . . . Bottom view . . . . . . . . . Parts list . . . . . . . . . . . G40, G41 series . . . . . . . . Overall . . . . . . . . . . LCD FRUs . . . . . . . . . 14.1 in. TFT . . . . . . . . 15 in. TFT . . . . . . . . Keyboard . . . . . . . . . . Recovery CDs . . . . . . . . Windows XP Home Edition (for G40) . Windows XP Home Edition (for G41) . Windows XP Professional (for G40) . Windows XP Professional (for G41) . Windows 2000 (for G40) . . . . Miscellaneous parts . . . . . . . AC adapters . . . . . . . . . Telephone cable . . . . . . . . Optional FRUs . . . . . . . . Common parts list . . . . . . . Tools . . . . . . . . . . Power cords . . . . . . . . Notices . . . . . . . . . . . Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 108 110 111 112 112 113 114 115 115 139 146 147 147 149 150 150 150 151 152 153 153 153 153 154 154 154 155 156 158 44 ThinkPad G40, G41 Product overview Product overview This section presents the following product-unique information: v "Specifications" v "Status indicators" on page 47 v "FRU tests" on page 49 v "Fn key combinations" on page 51 Specifications The following table lists the specifications of the ThinkPad G40, G41 series: Feature Processor Description v Intel® Pentium® 4 processor 3.06/3.2/3.46/3.6/3.73 GHz, L2 512 KB cache v Intel Celeron® processor 2.4/2.53/2.66/2.8 GHz, L2 128 KB cache v v v v v 400 MHz FSB HUB link PCI bus LPC bus 333 MHz DDR SDRAM (PC2700) Bus architecture Memory (standard) v 128 MB DDR SDRAM SO DIMM (PC2700) card × 1 v 256 MB DDR SDRAM SO DIMM (PC2700) card × 1 v 512 MB DDR SDRAM SO DIMM (PC2700) card × 1 v 128 MB DDR SDRAM SO DIMM (PC2700) card v 256 MB DDR SDRAM SO DIMM (PC2700) card v 512 MB DDR SDRAM SO DIMM (PC2700) v 1024 MB DDR SDRAM SO DIMM (PC2700) (maximum of 2048 MB) Memory (optional) Graphic memory CMOS RAM hard disk drive v UMA architecture v 242 bytes v v v v v 30.0 40.0 40.0 60.0 80.0 GB, GB, GB, GB, GB, 4200 4200 5400 7200 5400 rpm, rpm, rpm, rpm, rpm, 2.5-inch, 2.5-inch, 2.5-inch, 2.5-inch, 2.5-inch, IDE IDE IDE IDE IDE interface interface interface interface interface (continued) ThinkPad G40, G41 45 Product overview Feature Display Description v 14.1-inch, 16M colors, XGA (1024 × 768 resolution) TFT color LCD v 15-inch, 16M colors, XGA (1024 × 768 resolution) TFT color LCD v 15-inch, 16M colors, SXGA+ (1400 × 1050 resolution) TFT color LCD v v v v v v v v External monitor connector Stereo headphone jack Monaural microphone jack Parallel connector RJ11 connector RJ45 connector PS/2 mouse connector Universal serial bus (USB) connector × 4 I/O port Audio Mini PCI adapter PC Cards Modem card AC adapter Fixed bays v Internal monaural speaker v Software control volume v IEEE 802.11b wireless LAN card v IEEE 802.11a/b wireless LAN Combo card v Type-II: two slots v Type-III: one slot v V.90 (V.92 design) modem daughter card (MDC-2) v 120-watt type v v v v CD-ROM drive DVD drive CD-RW/DVD drive FDD drive Windows XP Home Edition Windows XP Professional Windows 2000 Professional (Japan only) Preinstalled operating system 46 ThinkPad G40, G41