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Before using this information and the product it supports, be sure to read the general information under "Read This First" on page 19.

First Edition (November 1999) 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 disclaimers 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 in 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 1999. All rights reserved. Note to US Government Users -- Documentation related to restricted rights -- Use, duplication, or disclosure is subject to restrictions set forth in GSA ADP Schedule Contract with IBM Corp.

Contents
ThinkPad 390X / i Series 1700 Hardware Maintenance Manual . . . . . . . . . . . . . . Introduction . . . . . . . . . . . . . . . . . . . . Important Service Information . . . . . . . . . . How to Use Error Messages . . . . . . . . . . How to Read POST Error Messages . . . . . . Drive and Diskette Compatibility Matrix . . . . . . . Safety Notices (Multi-lingual Translations) . . . . . Safety Information . . . . . . . . . . . . . . . . General Safety . . . . . . . . . . . . . . . . Electrical Safety . . . . . . . . . . . . . . . . Safety Inspection Guide . . . . . . . . . . . . Handling Electrostatic Discharge-Sensitive Devices Grounding Requirements . . . . . . . . . . . . Laser Compliance Statement . . . . . . . . . . . Read This First . . . . . . . . . . . . . . . . . . What to Do First . . . . . . . . . . . . . . . . How to Disable the Password . . . . . . . . . Service Web site . . . . . . . . . . . . . . . Product Overview . . . . . . . . . . . . . . . . . Fn Key Combinations . . . . . . . . . . . . . Status Indicators . . . . . . . . . . . . . . . . Checkout Guide . . . . . . . . . . . . . . . . . Audio Checkout . . . . . . . . . . . . . . . . Diskette Drive Checkout . . . . . . . . . . . . CD-ROM Checkout . . . . . . . . . . . . . . Fan Checkout . . . . . . . . . . . . . . . . . Keyboard and Auxiliary Input Device Checkout . Memory Checkout . . . . . . . . . . . . . . . Modem Board Checkout . . . . . . . . . . . . Power System Checkout . . . . . . . . . . . . TrackPoint Checkout . . . . . . . . . . . . . . Power Management Features . . . . . . . . . Symptom-to-FRU Index . . . . . . . . . . . . . . Numeric Error Codes . . . . . . . . . . . . . . Error Messages . . . . . . . . . . . . . . . . No Beep Symptoms . . . . . . . . . . . . . . LCD-Related Symptoms . . . . . . . . . . . . Keyboard-Related Symptoms . . . . . . . . . . Indicator-Related Symptoms . . . . . . . . . . Power-Related Symptoms . . . . . . . . . . . PC Card (PCMCIA)-Related Symptoms . . . . . Speaker-Related Symptoms . . . . . . . . . . Power Management-Related Symptoms . . . . . Peripheral-Device-Related Symptom . . . . . . Intermittent Problems . . . . . . . . . . . . . Undetermined Problems . . . . . . . . . . . . CE Utility Program Diskette . . . . . . . . . . . . Setting the LCD Panel ID . . . . . . . . . . . Setting the Thermal Sensor . . . . . . . . . . Contents 1 2 2 3 3 4 5 12 12 13 14 15 16 17 19 19 20 21 22 23 24 26 27 27 28 28 29 30 31 32 34 35 38 39 41 41 42 42 42 43 43 43 43 44 44 45 46 46 46

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Writing the RFID Data . . . . . . . . . . . . . Flash UUID . . . . . . . . . . . . . . . . . . Running the Diagnostics . . . . . . . . . . . . . . PC-Doctor DOS System Diagnostics . . . . . . FRU Removals and Replacements . . . . . . . . . FRU Service Procedures . . . . . . . . . . . . Battery . . . . . . . . . . . . . . . . . . . . Hard Disk Drive . . . . . . . . . . . . . . . . Combo Bay . . . . . . . . . . . . . . . . . . Diskette Drive . . . . . . . . . . . . . . . . . CD-ROM . . . . . . . . . . . . . . . . . . . Combo Bay FPC . . . . . . . . . . . . . . . Hard Disk Adapter Combo Bay . . . . . . . . . Modem Card . . . . . . . . . . . . . . . . . Backup Battery (RTC) . . . . . . . . . . . . . Keyboard . . . . . . . . . . . . . . . . . . . LED Board . . . . . . . . . . . . . . . . . . Upper Heatsink . . . . . . . . . . . . . . . . PCMCIA Slots . . . . . . . . . . . . . . . . . CPU Board . . . . . . . . . . . . . . . . . . LCD Panel . . . . . . . . . . . . . . . . . . Upper Cover . . . . . . . . . . . . . . . . . IMM Lower Heatsink . . . . . . . . . . . . . . Fan . . . . . . . . . . . . . . . . . . . . . . Speakers . . . . . . . . . . . . . . . . . . . Power Latch, IR Board, and DC-DC & BATT Board System Board . . . . . . . . . . . . . . . . . Combo Bay Interposer Board . . . . . . . . . . LCD Bezel 15.0" . . . . . . . . . . . . . . . . LCD Inverter 15.0" . . . . . . . . . . . . . . . Microphone 15.0" . . . . . . . . . . . . . . . LCD Panel 15.0" . . . . . . . . . . . . . . . . LCD Bezel 14.1" . . . . . . . . . . . . . . . . Speaker 14.1" . . . . . . . . . . . . . . . . . VR Board 14.1" . . . . . . . . . . . . . . . . Microphone 14.1" . . . . . . . . . . . . . . . LCD Panel 14.1" . . . . . . . . . . . . . . . . LCD Inverter 14.1" . . . . . . . . . . . . . . . LCD FPC 14.1" . . . . . . . . . . . . . . . . LCD Bezel 12.1" . . . . . . . . . . . . . . . Speaker 12.1" . . . . . . . . . . . . . . . . VR Board 12.1" . . . . . . . . . . . . . . . LCD Inverter 12.1" . . . . . . . . . . . . . . Microphone 12.1" . . . . . . . . . . . . . . LCD Panel 12.1" . . . . . . . . . . . . . . . LCD FPC 12.1" . . . . . . . . . . . . . . . Switch Location . . . . . . . . . . . . . . . System Unit Parts Listing . . . . . . . . . . . . LCD Unit Parts Listing . . . . . . . . . . . . . . 12.1" LCD Parts Listing . . . . . . . . . . . 14.1" LCD Parts Listing . . . . . . . . . . . 15.0" LCD Parts Listing . . . . . . . . . . . Service Tools . . . . . . . . . . . . . . . .

47 47 48 48 58 59 61 62 63 64 65 66 67 68 69 70 72 73 74 76 77 79 81 82 83 85 86 87 88 89 90 91 93 94 95 96 97 98 99 100 101 102 103 104 105 106 106 107 112 113 115 117 118

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Notices . . . . . . . . . . . . . . . . . . . . . Trademarks . . . . . . . . . . . . . . . . . .

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ThinkPad 390X / i Series 1700 Hardware Maintenance Manual
About This Manual
This manual contains service and reference information for the IBM ThinkPad 390X / i Series 1700 products. Use this manual along with the advanced diagnostics tests to troubleshoot problems effectively. The manual is divided into sections as follows: The introduction section provides general information, guidelines, and safety information required to service computers. The product-specific section includes service, reference, and product-specific parts information. Important This manual is intended for trained servicers 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 (Multi-lingual Translations)" on page 5 and "Safety Information" on page 12.

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Introduction Important Service Information
Important Diskette fixes are customer installable. 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 down-load information. The Canadian BBS phone numbers are: Montreal Toronto Vancouver Winnipeg 514-938-3022 905-316-4255 604-664-6464 204-934-2735

FRU Replacement Strategy
Before Replacing Parts Ensure that all diskette fixes are installed prior to replacing any FRUs listed in this manual. Use the following strategy to prevent unnecessary FRU replacement and service expense: If you are instructed to replace a FRU and that does not correct the problem, reinstall the original FRU before you continue. 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 the first board that you replaced does not correct the problem, reinstall the original board, then replace the other (processor or system) board. If an adapter or device consists of more than one FRU, an error code may be caused by any of the FRUs. 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 A customized setup configuration (other than default settings) may exist on the computer you are servicing. Running Automatic Configuration may alter those settings. Note the current configuration settings (using the View Configuration option) and verify that the settings are in place when service is complete.

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Hard Disk Drive Replacement Strategy:
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 might have been changed. Be extremely careful during write operations such as copying, saving, or formatting. Data or programs can be overwritten if you select an incorrect drive.

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. The cause of the first error code can result in false error codes being displayed. 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.

How to Read POST Error Messages
POST error messages are displayed on the screen as three, four, five, or eight digits. The error messages that can be displayed as shorter POST messages are highlighted in this index. Some digits will represent different information for SCSI errors versus non-SCSI errors. The following example shows which digits display the shorter POST error messages and also defines the SCSI information in an eight-digit error message.
Shorter POST Messages Reserved Size (SCSI) Slot Number (SCSI) Device Code Logical Unit Number (SCSI) ID (SCSI)

All SCSI devices are set to a different SCSI ID. Duplicate SCSI ID settings can generate a false error message. Use the SCSI ID to determine whether the error message is coming from an internal or an external device.

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Drive and Diskette Compatibility Matrix
The following table provides identification information for 3.5-inch drives.
Diskette Drive 3.5-Inch - 1.44MB 3.5-Inch - 2.88MB Identifying Mark 1.44 on the eject button 2.88 on the eject button

The following table provides compatibility information for 3.5-inch diskettes and 3.5-inch diskette drives.
Diskette Capacity 1.0MB 2.0MB 4.0MB 1.44MB Drive Read/Write Read/Write Not Compatible 2.88MB Drive Read/Write Read/Write Read/Write

The following table provides identification information for 5.25-inch diskette drives.
Diskette Drive 5.25-Inch - 360KB (External) 5.25-Inch - 1.2MB (Internal) Identifying Mark Asterisk on bezel 1.2 on the eject button

The following table provides compatibility information for 5.25-inch diskettes and 5.25-inch diskette drives.
Diskette Capacity 360KB 1.2MB 360KB Drive Read/Write Not Compatible 1.2MB Drive Read/Write Read/Write

Note: A 360KB diskette written to or formatted on a 1.2MB drive can be read reliably only on a 1.2MB drive.

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Safety Notices (Multi-lingual Translations)
In this manual, safety notices appear in English with a page number reference to the appropriate multi-lingual, translated safety notice found in this section. The following safety notices are provided in English, French, German, Italian, and Spanish languages. Safety Notice 1 Before the computer is powered-on after FRU replacement, make sure all screws, springs, or 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 pi ces 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, mu sichergestellt werden, da keine Schrauben, Federn oder andere Kleinteile fehlen oder im Gehäuse vergessen wurden. Der Computer mu geschüttelt und auf Klappergeräusche gepr¾ft 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 provocarõan. Las piezas metálicas pueden causar cortocircuitos eléctricos.

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Safety Notice 2 Some standby batteries contain a small amount of nickel and cadmium. Do not disassemble it, 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 f¾r 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. 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.

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Safety Notice 3 The battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire or water, or shortcircuit 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 f¾r 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. 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.

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Safety Notice 4 The lithium battery can cause a fire, explosion, or 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. 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 bateria de repuesto es una bateria 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.

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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 unsachgemä 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 anschlieend 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 Notice 6 To avoid shock, do not remove the plastic cover that surrounds the lower portion 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. Safety Notice 7 Though main batteries have low voltage, a shorted or grounded battery can produce enough current to burn combustible materials or personnel. 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 Kurzschlu 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 Notice 8 Before removing any FRU, power-off the computer, unplug all power cords from electrical outlets, remove the battery pack, then disconnect any interconnecting cables. Avant de retirer une unit^ remplaable 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 mu abgeschaltet, alle Stromkabel aus der Steckdose gezogen, der Akku entfernt und alle Verbindungskabel abgenommen sein, bevor eine FRU entfernt wird. Prima di rimuovere qualsiasi FRU, spegnere il sistema, scollegare dalle prese elettriche tutti i cavi di alimentazione, rimuovere la batteria e poi scollegare i cavi di interconnessione. Antes de quitar una FRU, apague el sistema, desenchufe todos los cables de las tomas de corriente eléctrica, quite la batería y, a continuación, desconecte cualquier cable de conexión entre dispositivos.

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Safety Information
The following section contains the safety information that you need to be familiar with before servicing an IBM mobile computer.

General Safety
Follow these rules to ensure general safety: Observe good housekeeping in the area of the machines during and after maintenance. When lifting any heavy object: 1. Ensure you can stand safely without slipping. 2. Distribute the weight of the object equally between your feet. 3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift. 4. Lift by standing or by pushing up with your leg muscles; this action removes the strain from the muscles in your back. Do not attempt to lift any objects that weigh more than 16 kg (35 lb) or objects that you think are too heavy for you. Do not perform any action that causes hazards to the customer, or that makes the equipment unsafe. Before you start the machine, ensure that other service representatives and the customer's personnel are not in a hazardous position. Place removed covers and other parts in a safe place, away from all personnel, while you are servicing the machine. Keep your tool case away from walk areas so that other people will not trip over it. Do not wear loose clothing that can be trapped in the moving parts of a machine. Ensure that your sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it. 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. Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing. Attention: Metal objects are good electrical conductors. 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. After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that is worn or defective.

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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. 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. Do not work alone under hazardous conditions or near equipment that has hazardous voltages. Disconnect all power before: ­ ­ ­ Performing a mechanical inspection Working near power supplies Removing or installing main units

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. 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: There must be a complete circuit to cause electrical shock. 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. ThinkPad 390X / i 1700 HMM

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

and similar units. (This practice ensures correct grounding of the units.) 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 intent of this inspection guide is to assist you in identifying potentially unsafe conditions on these products. Each machine, as it was designed and built, had required safety items installed to protect users and service personnel from injury. This guide addresses only those items. However, good judgment should be used to identify potential safety hazards due to attachment of non-IBM features or options not covered by this inspection guide. If any unsafe conditions are present, you must determine how serious the apparent hazard could be and whether you can continue without first correcting the problem. Consider these conditions and the safety hazards they present: Electrical hazards, especially primary power (primary voltage on the frame can cause serious or fatal electrical shock).

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Explosive hazards, such as a damaged CRT face or bulging capacitor. Mechanical hazards, such as loose or missing hardware. The guide consists of a series of steps presented in a checklist. 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 appropriate type as specified in the parts listings. c. Insulation must not be frayed or worn. 4. Remove the cover. 5. Check for any obvious non-IBM alterations. Use good judgment as to the safety of any non-IBM alterations. 6. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage. 7. Check for worn, frayed, or pinched cables. 8. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with.

Handling Electrostatic Discharge-Sensitive Devices
Any computer part containing transistors or integrated circuits ( ICs) should be considered sensitive to electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge. Notes: 1. Use product-specific ESD procedures when they exceed the requirements noted here. 2. Make sure that the ESD protective devices you use have been certified (ISO 9000) as fully effective. When handling ESD-sensitive parts: Keep the parts in protective packages until they are inserted into the product. Avoid contact with other people. ThinkPad 390X / i 1700 HMM

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Wear a grounded wrist strap against your skin to eliminate static on your body. Prevent the part from touching your clothing. Most clothing is insulative and retains a charge even when you are wearing a wrist strap. 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. 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 batteryoperated 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
Some IBM Personal Computer models are equipped from the factory with a CD-ROM drive. CD-ROM drives are also sold separately as options. The CD-ROM drive is a laser product. The CD-ROM 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. When a CD-ROM drive 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 ThinkPad 390X / i 1700 HMM

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puede provocar la exposición a radiaciones peligrosas. Opening the CD-ROM drive could result in exposure to hazardous laser radiation. There are no serviceable parts inside the CD-ROM drive. Do not open. Some CD-ROM drives contain an embedded Class 3A or Class 3B laser diode. Note the following. DANGER: 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. Ker¾lje 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.

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Read This First
Before you go to the checkout guide, be sure to read this section. Important Notes Only certified trained personnel should service the computer. Read the entire FRU service procedures before replacing any FRUs. Use new nylon-coated screws when you replace FRUs. Be extremely careful during write operations such as copying, saving, or formatting. Drives in the computer that you are servicing might have been rearranged or the drive startup sequence might have been altered. If you select an incorrect drive, data or programs might be overwritten. Replace FRUs only for the correct model. When you replace a FRU, make sure the model of the machine and FRU part number are correct by referring to the FRU parts list. 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. FRU replacement should be considered only when a recurring problem exists. If this is suspected, clear the error log and run the test again. Do not replace any FRUs if log errors do not reappear. Be careful not to replace a non-defective FRU.

What to Do First
The servicer must include the following in the parts exchange form or parts return form that is attached to the returned FRU: 1. Name and phone number of servicer 2. Date of service 3. Date when part 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

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Before checking problems with the computer, determine whether or not the damage applies to the warranty by referring to the following: 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 may indicate that the system was subjected to stresses beyond normal use: The following is not covered under warranty: LCD panel cracked by applying excessive force or from being dropped Scratched (cosmetic) parts Cracked or broken plastic parts, broken latches, broken pins, or broken connectors caused by excessive force Damage caused by liquid spilled into the system Damage caused by the improper insertion of a PC Card or the installation of an incompatible card Damage caused by foreign material in the FDD Diskette drive damage caused by the diskette drive cover being pressed or by the insertion of a diskette with multiple labels Damaged or bent diskette eject button CD-ROM drive damage caused by excessive force, shock, or from being dropped Fuses blown by attachment of a nonsupported device Forgotten computer password (making the computer unusable) The following symptoms might indicate damage caused by by nonwarranted activities: Missing parts might be a symptom of unauthorized service or modification. HDD spindles can become noisy from being subjected to excessive force or from being dropped.

How to Disable the Password
There are three passwords used at a typical customer site: the Setup password, the HDD password, and the Power On password. Power On password: 1. Power off the computer. 2. Remove the battery pack and AC Adapter.

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3. Remove the backup battery (RTC) for 20 minutes or use a screwdriver to touch the backup battery (RTC) for 1 second. 4. Put back the backup battery (RTC). 5. Power on the computer and wait until POST ends. 6. Verify that the password prompt does not appear. Supervisor and HDD passwords: The Supervisor password and Hard Disk password (Hard Disk1 and Hard Disk2) are security features that are used to protect the system and the hard disk drive data from unauthorized access. No overriding capability is provided, so it cannot be replaced if they are forgotten. If the customer forgets the Supervisor password, the system board must be replaced. If the customer forgets the Hard Disk password, the hard disk drive must be replaced.

Service Web site
When the latest maintenance diskette and system program service diskette are available, they are posted on: Maintenance diskette: http://www.pc.ibm.com/partner/infotips System program service diskette: http://www.pc.ibm.com/thinkpad

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Product Overview
The following shows an overview of the system features of the ThinkPad 390X / i Series 1700 computer.
Feature Processor Description Intel® Mobile Pentium® III processor 500 MHz, L2 cache Intel Mobile Pentium III processor 450 MHz, L2 cache Intel Mobile Pentium II processor 400 MHz, L2 cache Intel Mobile CeleronTM processor 400 MHz, L2 cache Bus architecture Memory PCI Bus 2 DIMM slots, no memory on the system board 32 MB, 64 MB, 128 MB, or 256 MB DIMM card (max. 512 MB) Video 12.1­inch, 64K colors, 800x600 pixel TFT color LCD 14.1­inch, 64K colors, 1024x768 pixel TFT color LCD 15.0­inch, 64K colors, 1024x768 pixel TFT color LCD Audio 16­bit audio Internal stereo speakers Internal microphone Wavetable MIDI Diskette drive Hard disk drive 1.44MB (3­mode), 3.5­inch 4.8 GB, 2.5­inch, IDE 6.4 GB, 2.5­inch, IDE 10.0 GB, 2.5­inch, IDE 12.0 GB, 2.5­inch, IDE CD-ROM drive DVD-ROM drive (option) I/O ports 5.25­inch, 24X speed, E-IDE 5.25­inch, 4X speed, E-IDE External monitor Headphone/line-out Line-in Microphone-in Mouse/keyboard Parallel Serial USB RJ45 or RJ11 TV-out (S-video) Infrared transfer Internal modem IrDA 1.1 56Kbps (depends on the model) PCI

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Feature PC Card (PCMCIA) AC Adapter

Description One Type III or two Type II CardBus, ZV port support 56­Watt type

Fn Key Combinations
The following table shows the Fn key and function key combinations and their corresponding functions. The Fn key works independently of the operating system. The operating system obtains the status through the system management interface to control the system.
Fn + F2 F3 F4 F7 F8 F11 F12 Result Fuel-Gauge display on and off Standby mode Suspend mode Switch between the LCD, the external monitor, and both the LCD and external monitor Expand/shrink screen Switch power mode Hibernation mode

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Status Indicators
The system status LED indicators show the current computer status. The following shows the location of each indicator symbol and the meaning of each indicator.

Symbol (1) Battery status

Color Green Blinking orange Orange

Meaning Enough battery power remains for operation. The battery pack needs to be charged The battery pack is being charged. The computer is in suspend mode. The computer is entering suspend mode. Data is being read from or written to the hard disk drive, diskette drive, or data is being read from the CD-ROM drive. Do not enter hibernation mode or power off the computer when this indicator is on. The numeric keypad on the keyboard is enabled. You enable or disable the keypad by pressing and holding the Shift key, and pressing the NumLk key. For details, see the User's Reference.

(2) Suspend mode

Green Blinking green

(3) Drive in use

Orange

(4) Numeric lock

Green

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Symbol (5) Caps lock

Color Green

Meaning Caps Lock mode is enabled. All alphabetic characters (A-Z) are entered in capital letters without the Shift key being pressed. You enable or disable the Caps Lock mode by pressing the Caps Lock key. Scroll Lock mode is enabled. The Arrow keys can be used as screen-scroll function keys. The cursor cannot be moved with the Arrow keys. Not all application programs support this function. You enable or disable Scroll Lock mode by pressing the ScrLk key. The computer is operational. This indicator is always on when the computer is on and not in suspend mode.

(6) Scroll lock

Green

(7) Power on

Green

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Checkout Guide
Use the following procedure as a guide for computer problems. Besides the checkout tests described in this section, there are other items you can test for using the PC-Doctor DOS diagnostics program. See "PC-Doctor DOS System Diagnostics" on page 48 for details. Note: The diagnostic tests are intended to test only IBM products. Non-IBM products, prototype cards, or modified options can give false errors and invalid system responses. 1. Obtain the failing symptoms in as much detail as possible. 2. Verify the symptoms by attempting to recreate the failure by running the diagnostic test or by repeating the same operation. Note: To run the diagnostics, refer to "Running the Diagnostics" on page 48 3. Use the following table with the verified symptom to determine which page to go to. Search the symptoms column and find the description that best matches your symptom; then go to the page shown in the "Go to" column.
Symptoms (Verified) Power failure. (The power-on indicator does not go on or stay on.) POST does not complete. No beeps or error codes/messages are indicated. POST beeps, but no error codes are displayed. POST detected an error and displayed numeric error codes. The diagnostic test detected an error and displayed a FRU code. Other symptoms (such as LCD display problems). Symptoms cannot be recreated (intermittent problems). Go to "Power System Checkout" on page 32, then use table in "Power-Related Symptoms" on page 43. "Symptom-to-FRU Index" on page 38, then use table in "No Beep Symptoms" on page 41. "Symptom-to-FRU Index" on page 38. "Symptom-to-FRU Index" on page 38, then use table in "Numeric Error Codes" on page 39. "Running the Diagnostics" on page 48. "Symptom-to-FRU Index" on page 38. Use the customer-reported symptoms, and go to "Symptom-to-FRU Index" on page 38.

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Audio Checkout
Do as follows: 1. Boot from and start PC-Doctor DOS. (See "PC-Doctor DOS System Diagnostics" on page 48 for details.) 2. Select Interactive Tests. 3. Select Internal Speaker. If no sound is played, replace the speaker or the system board. 4. Select Stereo Speaker. If no music is played, replace the speaker or the system board.

Diskette Drive Checkout
Do the following to isolate the problem to a controller, drive, or diskette. A scratch, write-enabled, non-defective, high-density (2HD) diskette is required. CAUTION: Make sure that the diskette does not have more than one label attached to it. Multiple labels can cause damage to the drive or can cause the drive to fail. Do the following to select the test device. See "Running the Diagnostics" on page 48 for details. 1. Boot from and start PC-Doctor DOS. (See "PC-Doctor DOS System Diagnostics" on page 48 for details.) 2. Select Diagnostics. 3. Select Diskette Drives. 4. Follow the instructions in the message window. If an error occurs with the internal diskette drive, reseat the connector on the system board. If the error still remains: 1. Reseat the Combobay. 2. Reseat the Diskette Drive. 3. Replace the Diskette Drive. 4. Replace the Combobay Interposer card. 5. Replace the system board.

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CD-ROM Checkout
Do the following to isolate the problem to a controller, drive, or CD-ROM. Make sure that the CD-ROM disc does not have any label attached to it. The label can cause damage to the drive or can cause the drive to fail. Do the following to select the test device: 1. Boot from and start PC-Doctor DOS. (See "PC-Doctor DOS System Diagnostics" on page 48 for details.) 2. Select Interactive Tests. 3. Select CD-ROM/DVD Test. 4. Follow the instructions in the message window. If an error occurs, reseat the connector on the system board. If the error still remains: 1. Reseat the Combobay. 2. Reseat the CD-ROM. 3. Replace the CD-ROM. 4. Replace the Combobay Interposer card. 5. Replace the system board.

Fan Checkout
To check the Fan, do the following: 1. Boot from and start PC-Doctor DOS. (See "PC-Doctor DOS System Diagnostics" on page 48 for details.) 2. Select Diagnostics. 3. Select Other Devices. 4. Select Fan. 5. Follow the instructions in the message window.

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Keyboard and Auxiliary Input Device Checkout
Note: Remove the external keyboard if the internal keyboard is to be tested. If the internal keyboard does not work or an unexpected character appears, make sure that the flexible cable extending from the keyboard is correctly seated in the connector. If the keyboard cable connection is correct, run the Keyboard Test. 1. Boot from and start PC-Doctor DOS. (See "PC-Doctor DOS System Diagnostics" on page 48 for details.) 2. Select Interactive Tests. 3. Select Keyboard. 4. Follow the instructions in the message window. If the test detects a keyboard problem, do the following one at a time to correct the problem. Do not replace a nondefective FRU. 1. Replace the keyboard. 2. Replace the system board. The following auxiliary input devices are supported for this computer: Numeric keypad Mouse (PS/2 compatible) External keyboard (with keyboard/mouse cable) If any of these devices do not work, reseat the cable connector and repeat the failing operation. If the problem does not reoccur, replace the device and then the system board.

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Memory Checkout
DIMM are available for increasing memory capacity.
Slot 1 (MB) 32 0 32 64 0 64 32 64 128 0 128 32 128 64 128 Slot 2 (MB) 0 32 32 0 64 32 64 64 0 128 32 128 64 128 128 Total Memory (MB) 32 32 64 64 64 96 96 128 128 128 160 160 192 192 256

Memory errors might stop system operation, show error messages on the screen, or hang the system. Use the following procedure to isolate memory problems: 1. Boot from and start PC-Doctor DOS. (See "PC-Doctor DOS System Diagnostics" on page 48 for details.) 2. Select Memory Test - Full and/or Memory Test Quick. 3. Follow the instructions in the message window. Note: Make sure that the DIMM is properly installed into the connector. A loose connection can cause an error.

System Programs in Flash Memory:
setup programs are stored in the flash memory.

System

Flash Memory Update:

The flash memory update is required for the following conditions: New versions of system programs New features or options

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Modem Board Checkout
Do the following to isolate the problem to the system internal modem: 1. Boot from and start PC-Doctor DOS. (See "PC-Doctor DOS System Diagnostics" on page 48 for details.) 2. Select Diagnostics. 3. Select Other Devices. 4. Run Modem Loopback Test and Modem Dialtone/DTMF Test. 5. Follow the instructions in the message window. 6. If the test detects a modem problem, replace the modem card.

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Power System Checkout
To verify the symptom of the problem power on the computer using each of the following power sources: 1. Remove the battery. 2. Connect the AC Adapter and check that power is supplied. 3. Disconnect the AC Adapter and install the charged battery; then check that power is supplied by the battery. If you suspect a power problem, refer the the appropriate power supply check listed below: "Checking the AC Adapter" "Checking the Operational Charging" on page 33 "Checking the Battery" on page 33

Checking the AC Adapter:

You are here because the computer fails only when the AC Adapter is used: If the power problem occurs only when the ThinkPad Port Replicator with Advanced Etherjet Feature. If the power-on indicator does not turn on, check the power cord of the AC Adapter for correct continuity and installation. If the operational charge does not work, go to "Checking the Operational Charging" on page 33.

Unplug the AC Adapter cable from the computer and measure the output voltage at the plug of the AC Adapter cable. See the following figure.

2 1
Pin 1 2 Voltage (V dc) +15.5 to +17.0 Ground

If the voltage is not correct, replace the AC Adapter. If the voltage is within the range, do the following: Replace the DC-DC & BATT board. Replace the system board. If the problem is not corrected, go to "Undetermined Problems" on page 45 Note: An audible noise from the AC Adapter does not always indicate a defective adapter.

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Checking the Operational Charging: To check operational charging, use a discharged battery pack or a Battery that has less than 50% of the total power remaining when installed in the computer.
Perform operational charging. If the battery status indicator does not turn on, remove the Battery and let it return to room temperature. Reinstall the Battery. If the charge indicator still does not turn on, replace the Battery. If the charge indicator still does not turn on, replace the DC-DC & BATT board, then the system board. Then reinstall the Battery. If the reinstalled Battery is not charged, go to the next section.

Checking the Battery:

Battery charging will not start until the Fuel-Gauge shows that less than 95% of the total power remains; with this condition, the Battery can charge to 100% of its capacity. This protects the Battery from being overcharged or having a shortened life. Do the following: 1. Power off the computer. 2. Remove the Battery and measure the voltage between battery terminals 1(+) and 7(-). See the following figure:

1

2

3

4

5

6

7

Note: Signal lines, not used in these steps, are used for communications between the system and the battery. 3. If the voltage is less than 10.8V (Li-Ion) or 9.6V (NiMH), the Battery has been discharged, recharge the Battery. If the voltage is still less than 10.8V (Li-Ion) or 9.6V (NiMH), replace the battery. 4. If the voltage is more than 10.8V (Li-Ion) or 9.6V (NiMH), measure the resistance between battery terminals 1 and 3. The resistance must be 390 ohm (Li-Ion) or 4 to 30K ohm. If the resistance is not correct, replace the Battery. If the resistance is correct, replace the DC-DC & BATT board then the system board.

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TrackPoint Checkout
If the external mouse is connected, the TrackPoint does not work. In this case, please detach the external mouse to check the TrackPoint. If this does not correct the TrackPoint problem, continue with the following. After you use the TrackPoint, the pointer drifts on the screen for a short time. This self-acting pointer movement can occur when a slight, steady pressure is applied to the TrackPoint pointer. This symptom is not a hardware problem. No service actions are necessary if the pointer movement stops ina short period of time. If a click button problem or pointing stick problem occurs, do the following: 1. Boot from and start PC-Doctor DOS. (See "PC-Doctor DOS System Diagnostics" on page 48 for details.) 2. Select Interactive Tests. 3. Select Mouse. 4. Follow the instructions in the message window. If either the pointing stick or the click button does not work, do the following actions one a time to correct the problem. Do not replace a non-defective FRU. 1. Reseat the keyboard cables. 2. Replace the keyboard. 3. Replace the system board.

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Power Management Features
Three power management modes are available in the computer system to reduce power consumption and to prolong battery life.

Standby Mode:
occurs:

In standby mode, the following

The LCD backlight turns off. The audio amplifier turns off. (Fn+F3) Events that cause the computer to enter standby mode: Standby mode requested by the Fn key (Fn+F3). The computer exits standby and resumes operation when any key is pressed.

Suspend Mode:
occurs:

In suspend mode, the following

The LCD is powered off. The hard disk drive is powered off. The CPU stops. Events that cause the computer to enter suspend mode: Suspend mode requested by the Fn key (Fn+F4). The Lid is closed (BIOS Setup). The specified time has elapsed. Battery low occurs and hibernation conditions are insufficient. Note: When battery is low, the battery status indicator blinks orange. The computer is ejected from the ThinkPad Port Replicator with Advanced Etherjet Feature (BIOS Setup). The UltraBay FX (Combobay) switch is pressed. Notes: 1. In the IBM BIOS Setup Utility, the computer can be set to suspend when lid is closed. 2. In the IBM BIOS Setup Utility, the computer can be set to suspend when docked. The following events cause the computer to resume operation from suspend mode: The Lid is opened. The real time clock alarm is signaled. The ring indicator (RI) is signaled by the internal modem or a PC Card device. The Fn key is pressed. Wake on LAN occurs. Power switch is pressed. ThinkPad 390X / i 1700 HMM

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The computer also exits suspend mode when timer conditions are satisfied for entering hibernation mode.

Hibernation Mode:
user:

For Windows NT or OS/2

A Windows NT or OS/2 user cannot create a hibernation file in a Windows NT or OS/2 system that uses the NTFS/HPFS format system. If you want to use hibernation mode, you should reinstall Windows NT with a FAT format system. Also, if boot manager is installed, the computer cannot enter hibernation mode. Note: Before using hibernation mode, you need a hibernation file. In hibernation mode, the following occurs: The system status, RAM, VRAM, and setup data are stored on the hard disk. The system is powered off. Notes: 1. In the ThinkPad Configuration program, the computer can be set to suspend when docked. 2. The computer cannot enter hibernation mode when it is attached to the ThinkPad Port Replicator with Advanced Etherjet Feature. Events that cause the computer to enter hibernation mode: Hibernation mode requested by function key (Fn+F12). Timer conditions are satisfied in suspend mode when hibernate by timer is enabled. A critically low battery condition occurs. The power switch is pressed. (BIOS Setup) The compute exits hibernation mode and resumes operation when the power-on switch is pressed. When power is turned on, the hibernation file in the boot record on the hard disk drive is read and the system status is restored from the hard disk drive. The following events cause the computer to resume operation from hibernation mode. The power switch is pressed. The real time clock alarm is signaled. Wake on LAN occurs.

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How to Create the Hibernation Function: Do as
follows: Start the ThinkPad Configuration program. Click on the Power Management icon. Click on the Hibernation Options tab. Click on Enable Hibernation. Click on OK. Note: If you change the memory size, you need to recreate the hibernation file or partition. For partition-based hibernation, use the hibernation utility to delete the partition first before creating a new one.

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Symptom-to-FRU Index
The Symptom-to-FRU Index lists the symptoms and errors and the possible causes. The most likely cause is listed first. Note: Perform the FRU replacement or actions in the sequence shown in the FRU/Action columns. If a FRU replacement does not solve the problem, put the original part back in the computer. Do not replace a non-defective FRU. This index can also be used to help you decide the next possible FRUs to be replaced when servicing a computer. Numeric error codes show the errors detected in POST or system operation (runtime). In the following error codes, X can be any number. If no codes are available, use narrative symptoms. If the symptom is not listed, go to "Undetermined Problems" on page 45. Note: For IBM devices not supported by diagnostic codes in this ThinkPad computer, see the manual for that device.

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ThinkPad 390X / i 1700 HMM

Numeric Error Codes
The following is a list of the message that the BIOS can display. Most of them occur during POST. Some of them display information about a hardware device, e.g., the amount of memory installed. Others may indicate a problem with a device, such as the way it has been configured. Following the list are explanations of the messages and remedies for reported problems. If the system fails after you make changes in the Setup menus, reset the computer, enter Setup and install Setup defaults or correct the error.
Symptom/Error 0200 Failure Fixed Disk FRU/Action in Sequence 1. Reseat hard disk drive. 2. Load Setup Defaults in BIOS Setup Utility. 3. Hard disk drive 4. System board 021x Keyboard error 023x Memory error Go to "Keyboard and Auxiliary Input Device Checkout" on page 29. 1. DIMM 2. BIOS ROM 3. System board 0250 System battery error 0251 System CMOS checksum bad -- Default configuration used 0260 System timer error Replace backup battery (RTC) and run BIOS Setup Utility to reconfigure the system time, then reboot the system. 1. Backup battery (RTC) 2. Run BIOS Setup Utility to reconfigure the system, then reboot the system.

1. Backup battery (RTC) 2. Run BIOS Setup Utility to reconfigure the system, then reboot the system. 3. System board

0270 Real time clock error

1. Backtup battery (RTC) 2. Run BIOS Setup Utility to reconfigure the system, then reboot the system. 3. System board

0271 Check date and time setting

1. Run BIOS Setup Utility and verify date and time. 2. Backup battery (RTC) 3. System board

ThinkPad 390X / i 1700 HMM

39

Symptom/Error 0281 Memory size found by POST differed from CMOS 02Bx Diskette drive A error

FRU/Action in Sequence 1. Load Setup Defaults in the BIOS Setup Utility. 2. DIMM 3. System board 1. Check that the drive is defined with the proper diskette type in BIOS Setup Utility. 2. Go to "Diskette Drive Checkout" on page 27.

02D0 System cache error -- Cache disabled

1. CPU card 2. System board

40

ThinkPad 390X / i 1700 HMM

Error Messages
Symptom/Error Device Address Conflict FRU/Action in Sequence 1. Load Setup Defaults in BIOS Setup Utility. 2. Backup battery (RTC) 3. System board Allocation Error for: device 1. Load Setup Defaults in BIOS Setup Utility. 2. Backup battery (RTC) 3. System board Failing Bits: nnnn 1. DIMM 2. BIOS ROM 3. System board Invalid System Configuration Data 1. Load Setup Defaults in BIOS Setup Utility. 2. BIOS ROM 3. System board I/O device IRQ conflict 1. Load Setup Defaults in BIOS Setup Utility. 2. Backup battery (RTC) 3. System board Operating system not found 1. Enter BIOS Setup Utility and see if the hard disk drive and diskette drive A: are properly identified. 2. Diskette drive 3. Hard disk drive 4. System board Critical battery low ERROR EDO RAM exist, system halt! Non PC100 SDRAM exist, system halt! Save your work; then connect the AC Adapter to the computer to recharge the battery. 1. DIMM 2. System board

No Beep Symptoms
Symptom/Error No beep, power-on indicator on, LCD blank, no POST FRU/Action in Sequence Ensure every connector is connected tightly and correctly. DIMM Reseat CPU card. CPU card System board

ThinkPad 390X / i 1700 HMM

41

Symptom/Error No beep, power-on indicator off, LCD blank during POST

FRU/Action in Sequence Battery AC Adapter DC-DC & BATT board System board

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

Reseat DIMM. CPU card System board Speaker

LCD-Related Symptoms
Symptom/Error LCD backlight not working LCD too dark LCD brightness cannot be adjusted LCD contrast cannot be adjusted LCD screen unreadable Screen abnormal Wrong color displayed FRU/Action in Sequence 1. Reseat the LCD connector. 2. Check the LCD inverter ID 3. LCD FPC 4. LCD inverter 5. LCD 6. System board 1. Reseat the LCD connector. 2. Check the LCD inverter ID 3. LCD FPC 4. LCD inverter 5. LCD 6. System board LCD has extra horizontal or vertical lines displayed. 1. Check the LCD inverter ID 2. LCD FPC 3. LCD inverter 4. L