IBM ThinkPad 770Z, ThinkPad 770X, ThinkPad 770E, ThinkPad 770, ThinkPad 770ED Service Manual

IBM Mobile Systems

ThinkPad 770 (9548), 770E/ED (9548) 770X (9549), 770Z (9549)

Hardware Maintenance Manual

January 1999

S10L-9621-02

IBM

Note

Before using this information and the product it supports, be sure to read the general information under “Notices” on page 129.

Third Edition (January 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.

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.

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.

iii

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 390/i Series 1700 (2626, 2627) Diagnostic and Utilities Diskettes

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

10L9942, S10L-9942

71G3702, S71G-3702

83G8095, S83G-8095

42G2017, S42G-2017

42G2023, S42G-2023

61G1194, S61G-1194

78H5384, S78H-5384

Contents

General Descriptions . . . . . . . . . . . . . . 1

Introduction . . . . . . . . . . . . . . . . . . . . 1

Important Service Information .......... 1

Drive and Diskette Compatibility Matrix ..... 3

Safety Notices (Multi-lingual Translations) .... 3

Safety Information . . . . . . . . . . . . . . . 10

Laser Compliance Statement ........... 14

Read This First .................. 16

FRU Replacement Notices ............ 19

LCD Replacement Notice ........... 19

Screw Notices . . . . . . . . . . . . . . . . . 19

System Board Replacement Notice ....... 20

CPU Card Replacement Notice (600E and 770X

Only) . . . . . . . . . . . . . . . . . . . . 22

DC-DC Card Replacement Notice (600E and 770X

Only) . . . . . . . . . . . . . . . . . . . . 22

Related Service Information ............ 23

How to Use Error Messages .......... 23

How to Diagnose Multiple FRUs ........ 23

Reset Switch . . . . . . . . . . . . . . . . . 23

Running a Low-Level Format .......... 23

Service Web Site ............... 24

Passwords . . . . . . . . . . . . . . . . . . 24

Power Management Features ......... 25

Fn Key Combinations ............. 29

Checkout Guide . . . . . . . . . . . . . . . . . 30

Audio Checkout . . . . . . . . . . . . . . . . 31

Diskette Drive Checkout ............ 31

Fan Checkout . . . . . . . . . . . . . . . . . 32

Indicator LED Checkout ............ 32

Indicator Panel Checkout ............ 32

Keyboard or Auxiliary Input Device Checkout . . 32

Memory Checkout . . . . . . . . . . . . . . . 33

Modem (DSP) Checkout ............ 35

Port Replicator Checkout ............ 35

Power Systems Checkout ........... 36

System Board and CPU Card Checkout ..... 39

TrackPoint Checkout . . . . . . . . . . . . . . 39

Running the Diagnostics .............. 40

PC Card Slots Test .............. 41

Universal Serial Bus (USB) Test ........ 41

Displaying the Error Log ............ 42

Checking the Installed Devices List ....... 43

Diagnostic Error Codes ............ 43

ThinkPad 770, 770E, 770X and 770Z ....... 47

Model-Unique Functions . . . . . . . . . . . . . . 49

Product Overview . . . . . . . . . . . . . . . 49

Status Indicators . . . . . . . . . . . . . . . . 51

Symptom-to-FRU Index . . . . . . . . . . . . . . 52

Numeric Error Codes .............. 52

 Copyright IBM Corp. 1999 v

Beep Symptoms . . . . . . . . . . . . . . . . 57

No Beep Symptoms .............. 57

Audio-Related Symptoms . . . . . . . . . . . 58

CD-ROM-Related Symptoms . . . . . . . . . . 58

DVD-Related Symptoms . . . . . . . . . . . . 59

Function-Related Symptoms . . . . . . . . . . 62

Indicator-Related Symptoms . . . . . . . . . . 62

Infrared-Related Symptoms . . . . . . . . . . . 63

Keyboard- or TrackPoint-Related Symptoms . . . 63

LCD-Related Symptoms . . . . . . . . . . . . 63

Modem (DSP)-Related Symptoms ....... 64

PC Card-Related Symptoms .......... 64

Peripheral-Device-Related Symptoms . . . . . . 65

Power-Related Symptoms . . . . . . . . . . . 65

Other Symptoms . . . . . . . . . . . . . . . . 66

Intermittent Problems . . . . . . . . . . . . . 66

Undetermined Problems . . . . . . . . . . . . 66

FRU Removals and Replacements ......... 68

1010 Battery Pack . . . . . . . . . . . . . . 70

1020 UltraBay II Device or Second Battery Pack 71

1030 DVD and Enhanced Video Adapter .... 72

1040 Hard Disk Drive ............. 73

1050 Backup Battery and DIMM ........ 75

1060 Keyboard Assembly . . . . . . . . . . . 76

1065 Keyboard and Indicator Panel ...... 78

1070 Center Cover and Hinge Cap ....... 81

1080 Power Switch and Bay Eject Lever .... 82

1090 LCD Unit . . . . . . . . . . . . . . . . 86

1100 Standby Battery . . . . . . . . . . . . . 88

1110 Upper Shield . . . . . . . . . . . . . . 89

1120 Speaker . . . . . . . . . . . . . . . . . 91

1130 Video Card . . . . . . . . . . . . . . . 92

1140 Modem Card . . . . . . . . . . . . . . 93

1150 DC-DC Card . . . . . . . . . . . . . . 94

1160 Fan . . . . . . . . . . . . . . . . . . . 97

1170 CPU Card and Heat Sink ........ 98

1180 PC Card Slot ............. 101

1190 System Board, Base Memory, or Cable for

RFID . . . . . . . . . . . . . . . . . . . 102

2010 LCD Front Cover ........... 106

2020 LCD Panel Assembly ......... 108

2030 Inverter Card . . . . . . . . . . . . . 111

2050 Hinge and LCD Cable ......... 112

Locations . . . . . . . . . . . . . . . . . . . . 114

Front View . . . . . . . . . . . . . . . . . 114

Rear View . . . . . . . . . . . . . . . . . . 115

Bottom View . . . . . . . . . . . . . . . . . 116

Password Jumper . . . . . . . . . . . . . . 116

Parts List . . . . . . . . . . . . . . . . . . . . 117

LCDFRU . . . . . . . . . . . . . . . . . . 122

Keyboard Unit . . . . . . . . . . . . . . . . 124

Common Parts List ............. 127

Notices . . . . . . . . . . . . . . . . . . . . . 129

Trademarks . . . . . . . . . . . . . . . . . 129

General Descriptions

This chapter includes the descriptions for all ThinkPad models. Some descriptions might not apply to the particular computer.

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

 Copyright IBM Corp. 1999

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.

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

"""""""""""""""""""""

" " " " " """"""""""""""""""""""""""""""""""""""""" " ð" ð" ð" ð" ð" ð" ð" ð" """""""""""""""""""""""""""""""""""""""""

" " " " " " " "

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.

Device Code " Logical Unit Number (SCSI)

Drive and Diskette Compatibility Matrix

The following table provides identification information for

3.5-inch drives.

Diskette Drive Identifying Mark

3.5-Inch - 1.44MB 1.44 on the eject button

3.5-Inch - 2.88MB 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 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 Identifying Mark

5.25-Inch - 360KB (External) Asterisk on bezel

5.25-Inch - 1.2MB (Internal) 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 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.

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.

General Descriptions

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 ciÞ 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.

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.

General Descriptions 5

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.

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.

General Descriptions 7

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.

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.

General Descriptions 9

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.

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.

Do not attempt to lift any

 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.

 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

General Descriptions

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.

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,

that power has been disconnected

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).

 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.

General Descriptions

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.

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 puede provocar la exposición a radiaciones peligrosas.

General Descriptions 15

READ THIS FIRST

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.

Read This First

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

READ THIS FIRST

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

Before checking problems with the computer, determine whether the damage is covered under the warranty by referring to the following:

General Descriptions

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 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).

READ THIS FIRST

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.

FRU REPLACEMENT NOTICES

FRU Replacement Notices

This section contains notices for removal and replacement. Read this section carefully before replacing any FRU.

LCD Replacement Notice

The TFT LCD for the computer contains over 2,359,296 thin-film transistors (TFTs). A small number of missing, discolored, or lighted dots (on all the time) is characteristic of TFT LCD technology, but excessive pixel problems can cause viewing concerns. The LCD should be replaced if the number of missing, discolored, or lighted dots in any background is 21 or more.

Screw Notices

This computer uses special nylon-coated screws with the following characteristics:

 They maintain tight connections.  They do not easily come loose, even with shock or

vibration.

 They need additional force to tighten.  They should be used only once.

Do the following when you service this machine:

 Keep the screw kit (P/N 05K4841) in your tool bag.  Always use new screws if you are instructed.  Use a torque screwdriver if you have one.

Loose screws can cause a reliability problem. The IBM ThinkPad computer addresses this problem with nylon-coated screws. Tighten screws as follows:

 Plastic to plastic

Turn an additional 90 degrees after the screw head touches the surface of the plastic part:

 Logic card to plastic

Turn an additional 180 degrees after the screw head touches the surface of the logic card:

General Descriptions

FRU REPLACEMENT NOTICES

 Torque driver

If you have a torque driver, refer to the “Torque” column with each step.

 Make sure you use the correct screw, and tighten all

screws firmly to the torque shown in the table if you have a torque screwdriver. Never use a screw that

you removed. Use a new one. Make sure the screws are tightened firmly

System Board Replacement Notice

Notice for 770E and 600: Restoring the System

Unit Serial Number: The EEPROM on the system board

contains vital product data (VPD), such as the system unit serial number and the system board serial number. You must restore the system unit serial number to its original number when the system board is replaced.

To restore the system unit serial number, do the following:

1. Press and hold F1 and power on the computer.

2. Hold down F1 until the Easy-Setup menu appears.

3. Click on Config.

4. Press Ctrl + N. The System Unit Serial Number menu appears.

5. Follow the instructions on the menu.

Notes

1. Do not power-off the computer during the restoration process.

2. The serial number label is attached to the bottom of the computer.

Notice for 770X and 600E

Serial Numbers:

manufactured, the EEFROM on the system board was loaded with the serial numbers of the system and all major components. The EEPROM contains the following serial numbers:

 System board serial number  System unit serial number  CPU Card serial number  DC-DC Card serial number

When the computer was

FRU REPLACEMENT NOTICES

You must restore each of those serial numbers except the system board serial number to its original number when replacing the system board.

To save the original serial numbers, do the following:

1. Boot from DOS, or open an MS-DOS prompt.

2. Insert the ThinkPad Hardware Maintenance Diskette Version 1.05 into the diskette drive.

3. Enter A:\SERUPDT.EXE at the DOS prompt. The usage of this tool is displayed.

Note

SERUPDT.EXE is in the ThinkPad Hardware Maintenance Diskette Version 1.05 or a later version.

4. Enter SERUPDT R Each serial numbers is displayed with its device type.

Write down all numbers except the system board serial number. The device type designations for the each serial number are as follows:

08: CPU card serial number 20: System unit serial number 38: DC-DC card serial number 40: System board serial number 78–7F: Hard disk drive serial number

Note

You can disregard the hard disk drive serial number.

To restore the serial numbers, do the following:

1. Boot from DOS, or open a MS-DOS prompt.

2. Enter SERUPDT.EXE at the DOS prompt. The usage of this tool is displayed.

3. Enter SERUPDT W nn SSSSSSS for each serial number you saved.

Notes

1. nn is the device type, and SSSSSSS is the serial number.

2. The system unit serial number is written in the label attached on the bottom of the computer.

UUID:

128-bit number uniquely assigned to your computer at production and stored in the EEPROM of your system board. The algorithm that generates the unique number is designed to provide unique IDs until the year A.D. 3400. Consequently, no two computers in the world have the same number.

General Descriptions

The Universally Unique IDentifier (UUID) is a

FRU REPLACEMENT NOTICES

When you replace the system board, you must set the UUID on the new system board as follows:

1. Press and hold F1 and power on the computer.

2. Hold down F1 until the Easy-Setup menu appears.

3. Click on Config.

4. Press Ctrl + G. The UUID menu appears.

5. Press F5 to generate a new UUID, and press Enter to overwrite it to EEPROM.

CPU Card Replacement Notice (600E and 770X Only)

You must restore the CPU card serial number to its original number, when the CPU card is replaced. To save and restore the CPU card serial number, follow the instruction in “Serial Numbers” on page 20.

DC-DC Card Replacement Notice (600E and 770X Only)

You must restore the DC-DC card serial number to its original number, when the DC-DC card is replaced. To save and restore the DC-DC card serial number, follow the instruction in “Serial Numbers” on page 20.

RELATED SERVICE INFORMATION

Related Service Information

This section provides information about the following:

 “How to Use Error Messages”  “How to Diagnose Multiple FRUs”

 “Reset Switch”

 “Running a Low-Level Format”  “Service Web Site” on page 24  “Passwords” on page 24  “Power Management Features” on page 25  “Fn Key Combinations” on page 29

How to Use Error Messages

Use the error codes displayed on the screen to diagnose failures. If more than one error code is displayed, begin the diagnosis with the first error code. Whatever caused 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” section.

How to Diagnose Multiple FRUs

When the adapter or device has more than one FRU, the error code could be caused by any of them. Before replacing multiple FRUs, try removing or exchanging each FRU, one by one in the designated sequence, to see if the symptoms change.

Reset Switch

The Reset switch resets the system (regardless of the microcode status) and forces the power off. Use this push button to power off when power is not completely off or the microcode is in a hung state. See the “Locations” section of each model for Reset switch location.

Running a Low-Level Format

Do the following to format the hard disk. Attention: Make sure the drive address to be formatted is correct. This procedure erases all information on the disk.

1. Power off the computer.

2. Hold F1 until the Easy-Setup menu appears.

3. Click on the Test icon. The Basic Diagnostics menu appears.

4. Press Ctrl+A to enter advanced diagnostic mode. The ThinkPad FRU Connections window appears.

5. Click on Exit. The Keyboard Test menu appears.

6. Click on Exit again.

7. Press Ctrl+L. The Low-Level Format menu appears.

8. Follow the instructions on the screen

If you are prompted to use the Maintenance Diskette, do the following:

General Descriptions

RELATED SERVICE INFORMATION

1. Insert the ThinkPad Hardware Maintenance Diskette Version 1.05 or a later version into the diskette drive and power on the computer.

2. Select Format the hard disk from the main menu.

3. Select the drive from the menu.

4. Follow the instructions on the screen.

Service Web Site

When the latest system program service diskette is available, it will be posted on:

System program service diskette:

http://www.pc.ibm.com/us/files.html

Passwords

When the power-on password (POP), hard disk password (HDP), and supervisor password (PAP) are used, the following situations may occur:

If the POP is the same as the HDP



prompt appears, but the HDP prompt does not appear.



If the POP is not the same as the HDP

prompts appear.



The PAP and the HDP:

If the PAP is used, the HDP is enabled automatically, but no HDP prompt appears. The HDP is set the same as the PAP.

The ThinkPad computer that has the bay can support more than two HDPs.

 If the

POP

is the same as one of the or HDP-2), a POP prompt appears. The passwords are different.

POP

is not the same as either of the (HDP-1 or HDP-2):, both prompts appear.

PAP

is used, the automatically enabled, but the HDP prompt does not appear. The HDP-1 and HDP-2 are then set to the same password as the PAP.

HDP-1

or the

, the POP

, both

HDPs

(HDP-1

HDPs

HDP-2

Supervisor and Hard Disk Passwords: The

supervisor password and the hard disk password (HDP) are security features that are used to protect the system and the hard disk data from unauthorized access. No overriding capability is provided. If only a hard disk password is set, obtaining permission from the password owner to unlock the password is a prerequisite for running diagnostic tests and performing service. If both supervisor password and hard disk password are set, you can enter Easy-Setup by pressing the Enter key or by entering the power-on password at the supervisor password prompt. In this case, the Password, Start up, Network, and Initialize or Asset ID (for some models) icons cannot be selected.

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