IBM ThinkPad 570 UltraBase Service Manual

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IBM Mobile Systems
ThinkPad 570 (2644) ThinkPad 570 UltraBase
Hardware Maintenance Manual
February 1999
IBM
Note
Before using this information and the product it supports, be sure to read the general information under “Notices” on page 103.
First Edition (February 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 disclaimer or express or implied warranties in certain transactions; therefore, this statement may not apply to you.
This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the publication. IBM may make improvements or changes to the products or the programs described in this publication at any time.
It is possible that this publication may contain references to, or information about, IBM products (machines and programs), programming, or services that are not announced in your country. Such references or information must not be construed to mean that IBM intends to announce such IBM products, programming, or services in your country.
Requests for technical information about IBM products should be made to your IBM authorized dealer or your IBM marketing representative.
Copyright International Business Machines Corporation 1999. All rights reserved. Note to U.S.
Government Users – Documentation related to restricted rights – Use, duplication, or disclosure is subject to restrictions set forth in GSA ADP Schedule Contract with IBM Corp.
About This Manual
This manual contains service and reference information for IBM ThinkPad 570Z (2644) and ThinkPad Ultrabase products. Use this manual along with the advanced diagnostic 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 6 and “Safety Information” on page 13.
Related Publications
The following product publications are available through IBM or your IBM Authorized Dealer.
Publication Part, Form Number
Mobile Systems HMM Volume 1: Laptop, Notebook, Portable, and ThinkPad Computers (Models L40, CL57, N45, N51, P70/P75, ThinkPad 300, 350, 500, 510, 710T, Expansion Unit, Dock I, Dock II)
Mobile Systems HMM Volume 2: ThinkPad Computers (Models 340, 355, 360, 370, 700, 701, 720, 750, 755)
Mobile Systems HMM Volume 3: ThinkPad Computers (Models 365, 380, 385, 560, 760, SelectaDock)
Mobile Systems HMM Volume 4: ThinkPad Computers (Models 380, 385, 560, 760,
765)
30H2356, S82G-1501-01
30H2357, S82G-1502-03
84H8099, S82G-1503-05
05L1271, S05L-1270-01
Related Diskettes
The following diskettes are available through IBM or your IBM Authorized Dealer.
Diskette Part, Form Number
ThinkPad 300 (2615) Advanced Diagnostics Diskette
ThinkPad 350, 350C, 425, 425C (2618) Advanced Diagnostics Diskette
ThinkPad 365 (2625) Advanced Diagnostics Diskette
ThinkPad 380/385 (2635) Maintenance Diskette
ThinkPad 500 (2603) Advanced Diagnostics Diskette
ThinkPad 510 (2604) Advanced Diagnostics Diskette
ThinkPad 700 (9552) Reference Diskette
ThinkPad 700C (9552) Reference Diskette
ThinkPad 720/720C (9552) Reference Diskette
ThinkPad Hardware Maintenance Diskette (for all Models 355, 360, 560, 750, 755, 760)
ThinkPad Dock I (3545) 71G4140, S71G-4140 Docking Station (3550) 42G2428, S42G-2428 Data/Fax Modem 61G1556, S61G-1556 FaxConcentrator/A 84F8540, S84F-8540
33G9361, S33G-9361
A211000, GA21-1000
76H7578, S30H-2498
06J0333, S06J-0333
71G3702, S71G-3702
83G8095, S83G-8095
42G2017, S42G-2017
42G2023, S42G-2023
61G1194, S61G-1194
78H5384, S78H-5384
Contents
General descriptions . . . . . . . . . . . . . . . 1
Introduction . . . . . . . . . . . . . . . . . . . 3
Important Service Information ........... 3
How to Use Error Messages .......... 4
How to Read POST Error Messages ...... 4
Drive and Diskette Compatibility Matrix ....... 5
Safety Notices (Multi-lingual Translations) ..... 6
Safety Information . . . . . . . . . . . . . . . . 13
General Safety . . . . . . . . . . . . . . . . 13
Electrical Safety . . . . . . . . . . . . . . . . 14
Safety Inspection Guide ............ 15
Handling Electrostatic Discharge-Sensitive Devices 17
Grounding Requirements . . . . . . . . . . . . 17
Laser compliance statement ............ 18
Read this first ................... 20
FRU replacement notices ............. 22
LCD replacement notice ............ 22
Screw notices . . . . . . . . . . . . . . . . . 22
System board replacement notice ........ 23
Related service information ............ 25
Reset switch . . . . . . . . . . . . . . . . . 25
Running a low-level format ........... 25
Service Web site ............... 25
Passwords . . . . . . . . . . . . . . . . . . 25
Power management features .......... 28
Fn key combinations .............. 32
Checkout guide . . . . . . . . . . . . . . . . . . 33
Testing the computer ............. 33
Related service information ........... 36
Power systems checkout ............ 37
ThinkPad 570 . . . . . . . . . . . . . . . . . . 41
Product overview . . . . . . . . . . . . . . . . . 42
Specifications . . . . . . . . . . . . . . . . . 42
Status indicators . . . . . . . . . . . . . . . . 43
Structure . . . . . . . . . . . . . . . . . . . 44
Symptom-to-FRU index . . . . . . . . . . . . . . 47
Numeric error codes .............. 47
Error messages . . . . . . . . . . . . . . . . 49
Beep symptoms . . . . . . . . . . . . . . . . 50
LCD-related symptoms . . . . . . . . . . . . . 50
Intermittent problems . . . . . . . . . . . . . . 51
Undetermined problems . . . . . . . . . . . . 51
FRU removals and replacements ......... 53
1010 Battery pack . . . . . . . . . . . . . . . 55
1020 Backup battery . . . . . . . . . . . . . 56
1030 DIMM . . . . . . . . . . . . . . . . . . 58
1040 Hard disk drive ............. 59
1050 Keyboard . . . . . . . . . . . . . . . . 61
1060 Center cover . . . . . . . . . . . . . . 63
Copyright IBM Corp. 1999 vii
1070 Modem card . . . . . . . . . . . . . . . 64
1080 Frame and power switch ......... 65
1090 Audio card . . . . . . . . . . . . . . . 67
1100 Modem jack . . . . . . . . . . . . . . . 68
1110 Speaker . . . . . . . . . . . . . . . . . 69
1120 Audio cable . . . . . . . . . . . . . . . 70
1130 PC Card slots .............. 71
1140 HDD cable . . . . . . . . . . . . . . . 72
1150 Upper shield . . . . . . . . . . . . . . 73
1160 Fan . . . . . . . . . . . . . . . . . . . 74
1170 LCD unit . . . . . . . . . . . . . . . . 75
1180 System board assembly ......... 77
1190 I/O Connector cable or system board . . . 78
2010 LCD front bezel ............. 80
2020 Inverter card . . . . . . . . . . . . . . 82
2030 LCD panel . . . . . . . . . . . . . . . 83
2040 Hinges . . . . . . . . . . . . . . . . . 86
3010 Blank bezel in the UltraBase ....... 87
Battery pack in the UltraBase .......... 88
Locations . . . . . . . . . . . . . . . . . . . . . 89
Front View . . . . . . . . . . . . . . . . . . 89
Rear View . . . . . . . . . . . . . . . . . . . 90
Bottom View . . . . . . . . . . . . . . . . . . 91
Password pads . . . . . . . . . . . . . . . . 92
Parts List (ThinkPad 570) ............. 93
LCDFRU . . . . . . . . . . . . . . . . . . . 96
Keyboard . . . . . . . . . . . . . . . . . . . 98
Common Parts List ............. 100
Notices . . . . . . . . . . . . . . . . . . . . . 103
Trademarks . . . . . . . . . . . . . . . . . 103
viii ThinkPad 570 Hardware Maintenance Manual
INTRODUCTION

General descriptions

This chapter includes descriptions for any ThinkPad model that has the PC-Doctor DOS diagnostics program. Some descriptions might not apply to your particular computer.
Copyright IBM Corp. 1999 1
INTRODUCTION
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INTRODUCTION

Introduction

Important Service Information

Important
Diskette fixes are customer installable. The diskette fixes are located on the PC Company Bulletin Board Service (BBS). The direct phone line for modem connection is 919-557-0001 or tieline 255-0001.
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 514-938-3022 Toronto 905-316-4255 Vancouver 604-664-6464 Winnipeg 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.
Copyright IBM Corp. 1999
3
INTRODUCTION
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.
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)
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.
4 ThinkPad 570 Hardware Maintenance Manual
Device Code │ Logical Unit Number (SCSI)
INTRODUCTION

Drive and Diskette Compatibility Matrix

The following table provides identification information for
3.5-inch drives.
Diskette Drive
3.5-Inch - 1.44MB 1.44 on the eject button
3.5-Inch - 2.88MB 2.88 on the eject button
Identifying Mark
The following table provides compatibility information for
3.5-inch diskettes and 3.5-inch diskette drives.
Diskette Capacity
1.0MB Read/Write Read/Write
2.0MB Read/Write Read/Write
4.0MB Not Compatible Read/Write
1.44MB Drive
2.88MB Drive
The following table provides identification information for
5.25-inch diskette drives.
Diskette Drive
5.25-Inch - 360KB (External) Asterisk on bezel
5.25-Inch - 1.2MB (Internal) 1.2 on the eject button
Identifying Mark
The following table provides compatibility information for
5.25-inch diskettes and 5.25-inch diskette drives.
Diskette Capacity
360KB Read/Write Read/Write
1.2MB Not Compatible Read/Write
360KB Drive
1.2MB Drive
Note: A 360KB diskette written to or formatted on a
1.2MB drive can be read reliably only on a 1.2MB drive.
Introduction 5

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 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.
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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 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.
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 Notice 3
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.
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.
Introduction 9
Safety Notice 5
If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water for at least 15 minutes. Seek medical care if any symptoms from the fluid are present after washing.
Si le panneau d'affichage à cristaux liquides se brise et que vous recevez dans les yeux ou sur les mains une partie du fluide, rincez-les abondamment pendant au moins quinze minutes. Consultez un médecin si des symptômes persistent après le lavage.
Die Leuchtstoffröhre im LCD-Bildschirm enthält Quecksilber. Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Der LCD-Bildschirm besteht aus Glas und kann zerbrechen, wenn er unsachgemäß behandelt wird oder der Computer auf den Boden fällt. Wenn der Bildschirm beschädigt ist und die darin befindliche Flüssigkeit in Kontakt mit Haut und Augen gerät, sollten die betroffenen Stellen mindestens 15 Minuten mit Wasser abgespült und bei Beschwerden anschließend ein Arzt aufgesucht werden.
Nel caso che caso l'LCD si dovesse rompere ed il liquido in esso contenuto entrasse in contatto con gli occhi o le mani, lavare immediatamente le parti interessate con acqua corrente per almeno 15 minuti; poi consultare un medico se i sintomi dovessero permanere.
Si la LCD se rompe y el fluido de su interior entra en contacto con sus ojos o sus manos, lave inmediatamente las áreas afectadas con agua durante 15 minutos como mínimo. Obtenga atención medica si se presenta algún síntoma del fluido despues de lavarse.
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Safety 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 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.
Introduction 11
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 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.
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INTRODUCTION

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.
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.
Do not attempt to lift any
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.
Reinstall all covers correctly before returning the
machine to the customer.
Introduction
13

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
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.
exposed
INTRODUCTION
– 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.
14 ThinkPad 570 Hardware Maintenance Manual
INTRODUCTION
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
from a circuit. First, 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
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.
that power has been disconnected
check
that it has been
with the power on

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).
Explosive hazards, such as a damaged CRT face or
bulging capacitor
Introduction
15
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.
INTRODUCTION
16 ThinkPad 570 Hardware Maintenance Manual
INTRODUCTION

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.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 battery-operated system. You can use coax or connector-outside shells on these systems.
– Use the round ground-prong of the AC plug on
AC-operated computers.

Grounding Requirements

Electrical grounding of the computer is required for operator safety and correct system function. Proper grounding of the electrical outlet can be verified by a certified electrician.
Introduction 17
INTRODUCTION

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
18 ThinkPad 570 Hardware Maintenance Manual
INTRODUCTION
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 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. 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
19
READ THIS FIRST

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 removal and replacement
page before replacing any FRU.
Use new nylon-coated screws when you
replace FRUs.
Be extremely careful during such write
operations 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 from 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 nondefective 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 that 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
20 ThinkPad 570 Hardware Maintenance Manual
READ THIS FIRST
Before checking problems with the computer, determine whether the damage is covered under 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 might indicate that the system was subjected to stress beyond normal use.
The following is not covered under warranty:
LCD panel cracked from the application of
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.Fuses blown by attachment of a nonsupported
device.
Forgotten computer password (making the
computer unusable).
The following symptoms might indicate damage caused 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.
I9990303 errors can be caused by exposure to
strong magnetic fields.
Introduction 21
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