IBM 9548, 9549 Hardware Maintenance Manual

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S10L-9621-02

IBM Mobile Systems

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

Hardware Maintenance Manual

January 1999

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.

RELATED SERVICE INFORMATION

Note

The supervisor password and hard disk password cannot be replaced if they are forgotten. If the customer forgets the supervisor password, the system board must be replaced. If the customer forgets the hard disk password, the hard disk drive must be replaced.

How to Remove the Power-On Passwords:

If only the power-on password is set, do the following to remove the power-on password.

1. Power off the computer

2. Remove the DIMM cover on the bottom side of the computer.

3. Short-circuit the two password pads or put the jumper.

For the location of the password pads or jumper, see the “Locations” section for each model.

4. Under the short-circuit condition, power on the computer and wait until the POST ends.

After the POST ends, the password prompt does not appear. The power-on password is removed.

5. Reinstall the DIMM cover.

If both the power-on password and the supervisor password are set, do the following to remove the passwords:

1. Power on the computer by pressing and holding F1.

2. Enter the supervisor password. The Easy-Setup menu appears.

3. Click on the Password icon.

4. Click on the Power on icon.

5. Enter the supervisor password and press the Space bar.

6. Press Enter twice.

7. Click on Exit; then click on Restart. The power-on password has been removed.

Power Management Features

Three power management modes are provided by the computer to reduce power consumption and prolong battery power.

Standby Mode: In standby mode, the following

occurs:

 The LCD backlight turns off.  The hard disk drive motor stops.  The speaker is muted.

General Descriptions

RELATED SERVICE INFORMATION

Note

Standby mode in Windows 98 is called in Windows 95.

The computer enters standby mode when the Fn + F3 keys are pressed.

The computer exits standby and resumes normal operation when any key is pressed.

suspend mode

Suspend Mode: The following events occur in

addition to what occurs in standby mode when the computer enters suspend mode:

 The LCD is powered off.  The hard disk drive is powered off.  The CPU stops.

Note

Suspend mode in Windows 95 is called in Windows 98.

The following events cause the computer to enter suspend mode:

 The Fn + F4 keys are pressed.  The LCD cover is closed. If you add a check mark to

the Will not suspend even if LCD is closed box in the Power Management Properties window, the computer will not enter suspend mode even if the LCD is closed. The LCD only turns off.

 The Suspend button is selected in the Fuel-Gauge

program.

 The specified time has elapsed from the last

operation with the keyboard, the TrackPoint, the hard disk drive, the parallel connector, or the diskette drive; or the AC Adapter is plugged in.

In Windows 95, the timer is set by the Suspend Timer selection in the Power Properties window. In Windows 98, the timer is set by the System standby timer selection in the Power Management Properties window.

 The battery indicator blinks orange indicating that the

battery power is low. If you add a check mark to the Hibernate when battery becomes low box in the Power Management Properties window, the computer enters hibernation mode under this condition.

standby mode

RELATED SERVICE INFORMATION

Note

Even if you don't set the low-battery alarm, the charge indicator will let you know that the battery is low, and then the ThinkPad will automatically enter the power-saving mode. This default low-battery behavior is independent of the operating system, so the computer might behave differently from your setting if you set the low-battery alarm. The computer chooses appropriately between your setting and the default setting.

Note

The computer cannot enter suspend mode if it is attached to a docking station.

The following events cause the computer to resume operation from suspend mode:

 The Fn key is pressed.  The LCD cover is opened.  The ring indicator (RI) is signaled by a serial device

or PC Card device.

 The power switch is turned on.  The resume timer is set. In Windows 95, you can set

the time with the Resume on timer selection in the Power Management Properties window. In Windows 98, the Scheduled Tasks setting has priority over the Resume on timer selection in the Power Management Properties window.

Note

The computer does not accept any event immediately after it enters suspend mode. Therefore, wait a few seconds before taking any action to reenter operation mode.

Hibernation Mode

For the Windows NT User

A Windows NT user cannot create a hibernation file in a Windows NT system that uses the NTFS format system, the Windows NT default format. If you want to use hibernation mode, you should reinstall Windows NT with a FAT format system.

In hibernation mode, the following occurs:

 The system status, RAM, VRAM, and setup data are

stored on the hard disk.

 The system is powered off.

General Descriptions

RELATED SERVICE INFORMATION

Notes

1. In the ThinkPad Configuration program, the computer can be set to suspend/hibernate

while docked.

2. The computer cannot enter hibernation mode when:

 It is powered with ac power and a

communication PC Card is used.

 It is attached to a Dock I docking station.

The following events cause the computer to enter hibernation mode:

 The Fn + F12 keys are pressed.  The Hibernation button is selected in the Fuel-Gauge

program.

 To change from Hibernation mode to Operation

mode, activate the power switch once.

 The timer conditions are satisfied in suspend mode

(for operating systems other than Windows 98).

 A critically low battery condition occurs and

hibernation mode is set to Hibernate when battery becomes low.

The computer exits hibernation mode and resumes operation when the Power switch is pressed. When power is turned on, the hibernation file in the boot record on the hard disk drive is read and system status is restored from the hard disk drive.

RELATED SERVICE INFORMATION

Fn Key Combinations

The following table shows the Fn key and function key combinations and their corresponding functions.

The Fn key works independently from the operating system. The operating system obtains the status through the system management interface to control the system.

Fn + Description F1 Reserved. F2 Turn Fuel-Gauge display on or off. F3 Turn standby mode on. F4 Turn suspend mode on. F5 Reserved. F6 Reserved. F7 Switch between the LCD and an external

F8 Turn screen expansion on or off. (no symbol

F9 Reserved. F10 Reserved. F11 Switch the power management mode

monitor.

on the key)

(High Performance, Automatic, and Customized)

Note

In Windows 98, only the CPU speed is changed.

F12 Turn hibernation mode on. Model dependent functions Pg Up Increase the sound volume. Pg Dn Decrease the sound volume. Back

space

Mute.

General Descriptions 29

Checkout Guide

Use the following procedure as a guide for computer problems.

Note

The diagnostic tests are intended to test only IBM products. Non-IBM products, prototype cards, or modified options can give false errors and invalid system responses.

1. Obtain the failing symptoms in as much detail as possible.

2. Verify the symptoms by attempting to re-create the failure by running the diagnostic test or by repeating the same operation.

Note

To run the diagnostics, refer to “Running the Diagnostics” on page 40.

3. Use the following table with the verified symptom to determine which page to go to. Search the “Symptoms (Verified)” column, and find the description that best matches your symptom; then go to the page shown in the “Go To” column.

CHECKOUT GUIDE

Symptoms (Verified) Go To

Power failure. (The power indicator does not go on or stay on.)

POST does not complete. No beep or error codes are indicated.

POST beeps, but no error codes are displayed.

POST detected an error and displayed numeric error codes.

The diagnostic test detected an error and displayed a FRU code.

The configuration is not the same as the installed devices.

“Power Systems Checkout” on page 36.

“Symptom-to-FRU Index” section, and then use the No Beep Symptoms table.

“Symptom-to-FRU Index” section, and then use the Beep Symptoms table.

“Symptom-to-FRU Index” section, and then use the Numeric Error Codes table.

“FRU Codes” on page 44.

“Checking the Installed Devices List” on page 43.

CHECKOUT GUIDE

Symptoms (Verified) Go To

Other symptoms (such as LCD display problems).

Symptoms cannot be re-created (intermittent problems).

“Symptom-to-FRU Index” section, and then use the Other Symptoms table.

Use the customer-reported symptoms and go to “Symptom-to-FRU Index” section.

Audio Checkout

ISA Audio Check Out

1. Go to the diagnostic menu by selecting Test in the Easy-Setup menu.

2. Select Audio and run the diagnostic tests.

3. If the test detects a audio problem, replace the system board.

PCI Audio Check Out

1. Power off the computer.

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

3. Power on the computer.

4. Select Test the audio feature from the main menu.

5. If FAIL is displayed on the screen, replace the system board.

Diskette Drive Checkout

Do the following to isolate the problem to a controller, drive, or diskette. A blank, formatted, write-enabled, nondefective 2HD diskette is required.

FDD-1

represents the diskette drive in the bay.

represents an external diskette drive.

Attention

Make sure that the diskette does not have more than one label attached to it. Multiple labels can cause damage to the drive or cause the drive to fail.

Do the following to select the test device. See “Running the Diagnostics” on page 40 for details.

1. Start Easy-Setup.

2. Click on Test.

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

4. Click on Exit. The keyboard layout window appears.

General Descriptions

FDD-2

5. Click on Exit.

6. Click on FDD-1 or FDD-2 to start the test.

7. Insert the blank diskette when instructed and follow the instructions on the screen.

8. If the controller test detects an error, FRU code 10 appears. Replace the system board.

9. If the controller test runs without errors, the drive read/write tests start automatically. If a drive test detects an error, FRU code 50 for FDD-1 or 51 for FDD-2 appears. If the diskette itself is known to be good, replace the drive.

Fan Checkout

To check the fan, do the following:

1. Start Easy-Setup.

2. Click on Test. The fan will start so you can check the air turbulence at the louver near the power switch.

3. Press Ctrl+A to enter the advanced diagnostic mode. The ThinkPad FRU Connections window appears. If the fan connector is not connected, Fan not connected message appears.

4. Click on Exit. The keyboard layout window appears.

5. Click on Exit.

6. Click on System Board and press Enter to run the test. Follow the description on the window. If the test detects the fan problem, replace it.

CHECKOUT GUIDE

Indicator LED Checkout

If an indicator LED problem occurs, do the following:

1. Power off the computer.

2. Power on the computer. All the LEDs should turn on for a moment after the computer is powered on.

3. Verify that all LEDs turned on. If some of the LEDs do not turn on, replace the card that the LEDs are on. If the problem persists, replace the system board.

Indicator Panel Checkout

If an indicator panel problem occurs, do the following:

1. Power off the computer.

2. Power on the computer. All the icons should turn on for a moment after the computer is powered on.

3. Verify that all icons appear correctly. If some of the icons do not appear, replace the card that the indicator panel is connected to. If the problem persists, replace the DC-DC card.

Keyboard or Auxiliary Input Device Checkout

Remove the external keyboard if the internal keyboard is to be tested.

CHECKOUT GUIDE

If the internal keyboard does not work or an unexpected character appears, make sure that the flexible cable extending from the keyboard is correctly seated in the connector. If the keyboard cable connection is correct, run the keyboard test. See “Running the Diagnostics” on page 40 for details.

Note

When the Fn key is pressed, a black square briefly appears.

If the tests detect a keyboard problem, do the following one at a time to correct the problem. Do not replace a nondefective FRU:

1. Reseat the keyboard cable.

2. Replace the keyboard.

3. Replace the card that the keyboard is connected to.

4. Replace the system board.

The following auxiliary input devices are supported for this computer:

 Numeric keypad

 Mouse (PS/2 compatible)  External keyboard (with keyboard/mouse cable)

If any of these devices do not work, reseat the cable connector and repeat the failing operation.

If the problem does not recur, recheck the connector. If the problem is not corrected, replace the device and then the card that the devices are directly connected to.

Memory Checkout

DIMM cards are available for increasing memory capacity. The memory size is displayed in kilobites. 576 KB is

reserved by the system, so you calculate the memory size by the following equation: [total memory size (MB)] × 1024 − 576 (KB)

For example, if the total memory size is 64 MB, it is displayed as 64960 KB.

Memory errors might stop system operations, show error messages on the screen, or hang the system.

Use the following procedure to isolate memory problems:

1. Power off the computer and remove any installed DIMM from its slot.

Note

If the computer has a base memory slot and option memory slots, remove any DIMMs installed in the option memory slots.

General Descriptions 33

2. Press and hold the F1 key; then power on the computer. Hold the F1 key down until the Easy-Setup menu appears.

3. Select Test and press Enter.

4. Select Memory and press Enter to run the memory test on base memory.

See “Running the Diagnostics” on page 40 for details. If an error appears:

 If the computer don't have the base memory slot,

replace the system board.

 If the computer has the base memory slot,

remove the DIMM installed in the base memory slot and go to step 2. Then if an error appears, replace the system board.

If an error does not appear, continue the following procedures.

5. Power off the computer and reinstall the DIMM one by one; then power on the computer. Verify the memory size; then test the memory. If an error appears, replace the DIMM.

Note

Make sure that the DIMM is fully installed into the connector. A loose connection can cause an error.

CHECKOUT GUIDE

6. If the problem does not corrected, replace the following FRU. a. System board b. CPU card

If memory problems occur intermittently, use the loop option to repeat the test. When the test detects an error, an error log is printed on the printer connected to the parallel port. See “Displaying the Error Log” on page 42 for more information.

System Programs in Flash Memory: System

setup programs and diagnostic tests are stored in the Flash memory.

Flash Memory Update: The Flash memory update

is required for the following conditions:

 New versions of system programs  New features or options

To update the Flash memory, do the following:

1. Get the appropriate diskette containing the update.

2. Insert the System Program Service Diskette into drive A and power on the computer.

3. Select Update system programs from the menu.

CHECKOUT GUIDE

Modem (DSP) Checkout

Note

This section is for the built-in modem model.

Do the following:

1. Go to the diagnostic menu by selecting Test in the Easy-Setup menu.

2. Select DSP and run the diagnostic tests.

3. If the test detects a DSP problem, replace the modem card.

Port Replicator Checkout

Use the following procedure to isolate a port replicator problem. The port replicator attaches to the system expansion connector at the rear of the computer:

1. Power off the computer.

2. Remove the failing devices from the port replicator.

3. Unplug the AC Adapter from the port replicator, if attached.

4. Remove the port replicator from the computer.

5. Reconnect the failing device directly to the computer. (If another device is already connected to the computer, remove it first.)

6. Go to the “Running the Diagnostics” on page 40 and run the diagnostics.

7. If the advanced diagnostic device test did not find an error, suspect a problem with the port replicator.

8. Power off the computer and reconnect the port replicator.

9. Power on the computer and run the following advanced diagnostic tests:

 Serial port test with the wrap plug installed on

the port replicator

 Universal serial bus test with the USB parallel

test cable

 Parallel port test with the wrap plug installed on

the port replicator

 FDD-2 device test on the failing device with a

scratch diskette

10. If diagnostic errors appear, replace the port replicator or the diskette drive. If the problem remains after the replacement, replace the system board.

11. If power problems appear only when the port replicator is used, replace the port replicator.

Port Replicator Power Overload: If power

shutdown occurs intermittently when PC Card devices are used through a port replicator with PC Card slots, suspect an over-current problem. Some PC Card devices use more power; if the maximum usage of each device occurs simultaneously, the total current will exceed the limit, thereby causing a power shutdown. Isolate this problem

General Descriptions

CHECKOUT GUIDE

by removing one of the devices, use the computer under the same condition, and see whether a power shutdown occurs. Do this procedure for all devices to determine the cause.

Power Systems Checkout

To verify the symptom of the problem, power on the computer using each of the following power sources:

1. Remove the battery pack.

2. Connect the AC Adapter and check that power is supplied.

3. Disconnect the AC Adapter and install the charged battery pack; then check that power is supplied by the battery pack.

If you suspect a power problem, see the appropriate power supply checkout in the following list:

 “Checking the AC Adapter”  “Checking Operational Charging” on page 37  “Checking the Battery Pack” on page 37  “Checking the Backup Battery” on page 38

Checking the AC Adapter: You are here

because the computer fails only when the AC Adapter is used:

1. If the power problem occurs only when the port replicator is used, replace the port replicator.

2. If the power-on indicator does not turn on, check the power cord of the AC Adapter for correct continuity and installation.

3. If the operational charge does not work, go to Checking Operational Charging.

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

(16 - 10 V)

Pin Voltage (V dc)

1 +15.5 to +17.0 2 Ground

5. If the voltage is not correct, replace the AC Adapter.

6. If the voltage is within the range, do the following:

 Replace the system board.

CHECKOUT GUIDE

 If the problem is not corrected, go to

“Undetermined Problems” section of each model.

Note

An audible noise from the AC Adapter does not always indicate a defect.

Checking Operational Charging: To check

operational charging, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer.

Perform operational charging. If the battery status indicator or icon does not turn on, remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator or icon still does not turn on, replace the battery pack.

If the charge indicator still does not turn on, replace either the system board or DC-DC card that the battery is connected to. Then reinstall the battery pack. If the reinstalled battery pack is not charged, go to the next section.

Checking the Battery Pack: Battery charging will

not start until the Fuel-Gauge shows that less than 95% of the total power remains; with this condition the battery pack can charge to 100% of its capacity. This protects the battery pack from being overcharged or having a shortened life.

Do the following:

1. Power off the computer.

2. Remove the battery pack and measure the voltage between battery terminals 1 (+) and 4 (−). See the following figure:

Terminal Voltage (V dc) 1 + 0 to + 12.6 4 Ground (−)

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

General Descriptions 37

CHECKOUT GUIDE

Note

In this case, the battery pack is over-discharged. It takes at least 3 hours to recharge the battery pack even if the indicator does not turn on.

4. If the voltage is still less than +11.0 V dc after recharging, replace the battery.

5. If the voltage is more than +11.0 V dc, measure the resistance between battery terminals 3 and 4. The resistance must be 4 to 30 K ohm.

6. If the resistance is not correct, replace the battery pack. If the resistance is correct, replace the system board.

Checking the Backup Battery: Do the following:

1. Power off the computer and unplug the AC Adapter from the computer.

2. Turn the computer upside down.

3. Remove the backup battery (see “Removal and Replacement” section of each model).

4. Measure the voltage of the backup battery. See the following figure.

Note

Be careful not to measure the wrong side of the backup battery.

Wire Voltage (V dc)

Red +2.5 to +3.2 Black Ground

 If the voltage is correct, replace the system board.  If the voltage is not correct, replace the backup

battery.

 If the backup battery discharges quickly after

replacement, replace the system board.

CHECKOUT GUIDE

System Board and CPU Card Checkout

The processing functions are performed by both the system board and the CPU card. Processor problems can be caused by either FRU. However, the CPU card generally has a lower probability of failure. If a numeric code indicates the system board or the CPU card as a failing FRU, or the CPU card is indicated by a diagnostic test by showing FRU code 11, use the following procedure to isolate the problem:

1. Run the system board test to verify the symptom. This test verifies both the system board and the CPU card. If no error is detected, return to “Checkout Guide” on page 30.

Note

Don't touch the keyboard and pointing device when the system board test is running. This might cause an unexpected error.

2. If FRU code 10 appears, replace the system board but do not replace the CPU card. Remove the CPU card from the old system board and install it to the new system board.

3. If FRU code 11 appears, reseat the CPU card.

4. Rerun the test to verify the fix.

5. If FRU code 11 remains, replace the CPU card.

If this procedure does not correct the problem, go to the “Undetermined Problems” section for each model.

TrackPoint Checkout

If the TrackPoint does not work, check the configuration in the ThinkPad Configuration program. If the configuration of the TrackPoint is disabled, select Enable to enable it.

If this does not correct the TrackPoint problem, continue with the following. After you use the TrackPoint, the pointer drifts on the screen for a short time. This self-acting pointer movement can occur when a slight, steady pressure is applied to the TrackPoint pointer. This symptom is not a hardware problem. No service actions are necessary if the pointer movement stops in a short period of time.

If a click button problem or the pointing stick problem occurs, do the following:

1. Go to the Easy-Setup menu.

2. Select an item with the pointing stick.

3. Press any one of the click buttons.

4. Verify that the item is selected.

5. Move to another item with the pointing stick.

6. Press the pointing stick (press-to-select), and verify that the item is selected.

General Descriptions

RUNNING THE DIAGNOSTICS

Note

This step is only for the model that has the press-to-select function.

7. Verify that all buttons work correctly.

If either the pointing stick or the click button do not work, do the following actions one at a time to correct the problem. Do not replace a nondefective FRU.

1. Reseat the keyboard cables.

2. Replace the keyboard.

3. Reseat the card that the TrackPoint cable is directly connected to.

4. Replace the system board.

Running the Diagnostics

The following table lists the special tools needed for the diagnostics:

Tool Name Part Number

PC test card 35G4703 Tri-connector wrap plug 72X8546 USB parallel test cable 05K2580

Use either the TrackPoint or the cursor-moving keys to interact with the tests. The Enter key works the same as selecting the OK icon to reply OK.

1. Press and hold F1; then power on the computer. Hold F1 down until the Easy-Setup menu appears.

2. Click on Test. The basic diagnostic menu appears.

3. Click on a device to run the test. The test progress screen appears; then OK appears under the tested device icon when the test ends without any errors.

4. Start the Advanced Diagnostic test by pressing Ctrl+A on the basic diagnostic menu. The ThinkPad FRU connections window appears.

5. Click on Exit or press the Esc key. The keyboard test window appears.

6. When you press a key, a mark appears or disappears on the corresponding key position on the screen. Repeat this step for any keys that need to be tested. You can run the keyboard test if you press Ctrl+K in the advanced diagnostic test mode.

7. To exit the keyboard test, click on Exit or press Ctrl+Break. The advanced diagnostics window appears.

8. Click on a device to test it, or click on Test All to test all devices.

RUNNING THE DIAGNOSTICS

Click on Looptest to run the tests in a repeated loop. The loop option menu appears. Click on a device; the √ mark appears beside the selected device. Repeat this step to select multiple devices. Click on OK to start the diagnostic loop. If no device is selected, all devices tests are looped.

9. To exit the loop, keep pressing Ctrl+Pause until the test exits. A beep sounds to notify that the exit interrupt is sensed by the test program. Press Esc to exit from the loop test.

PC Card Slots Test

The green LED on the PC test card turns on when the PC Card slot test is running. If the LED does not turn on, check that the card is installed correctly by reseating it. If the LED still does not turn on after the card is reseated, try using another slot for the test. If the LED still does not turn on and the test fails, replace the FRU shown by the diagnostic error code.

Universal Serial Bus (USB) Test

At the advanced diagnostic window, do the following:

1. Connect the USB parallel test cable to the parallel connector of the computer.

2. Connect Connector 1 of the cable to the USB connector of the computer.

Note

The illustration shows a ThinkPad 770 computer, but the procedure is the same for the other model.

General Descriptions 41

3. Click on USB-1 to run the test. Follow the instructions on the screen. OK appears if

the test passed, but three lines of error codes appear if the test failed. The defective FRU must be the system board.

If you want to test the USB port on the port replicator, connect the USB parallel test cable to a port replicator and click on USB-2.

If you want to test the USB ports on a docking station, connect the USB parallel test cable to the USB ports of the docking station and click on USB-3 and USB-4.

RUNNING THE DIAGNOSTICS

Displaying the Error Log

Diagnostic errors are printed on a printer attached to the parallel port when the error is detected. The error is also logged in the system memory.

Use the following procedure to display the errors:

1. Enter the advanced diagnostic test.

2. Press Ctrl+E.

3. The error log appears.

4. To exit the screen, click on Exit or press Esc.

The error log is not saved when system power is turned off.

RUNNING THE DIAGNOSTICS

Checking the Installed Devices List

If a device is installed but the icon appears in a gray shade rather than a dark shade on the basic diagnostics menu, the device is defective. If necessary, adjust the contrast control to clearly distinguish the shades of the icon. Reseat the device connectors. If the symptom remains, replace the device or the system board.

If a device that is not installed appears in a dark shade (for

example, FDD-2 appears in a dark shade when FDD is installed), do the following:

1. Replace the first device in the configuration, such as an FDD-1.

2. If the problem persists, replace the card that the device is connected to.

The Parallel, and Serial icons are always displayed in a dark shade, because the icons represent subsystems of the system board and not the attachment of devices.

The FDD-1 icon represents a device in the computer. The FDD-2 icon represents another device, such as:

 An external diskette drive attached to the computer  An external diskette drive attached to a port replicator  A diskette drive in a docking station

second

Diagnostic Error Codes

If an error is detected, the following appears:

 Large X on the left side of the device icon.  Device ID (three digits).  Error code (two digits).  FRU code (four digits).

The device ID and error code indicate the detailed portion of the FRU that caused the error. If replacing a FRU does not correct the problem, see the device ID or error code from the previous failure. If they have changed, the cause might be that the new FRU is defective or that the FRU was incorrectly installed.

Device ID: If an error is detected by the diagnostic

tests, a three-digit device ID is displayed, indicating the suspected device.

General Descriptions

Icon Device ID Suspected Device SystemBoard 001 System board

003 Keyboard 007 Math coprocessor 086 Pointing device

Memory 002 Memory FDD-1 006 Diskette drive in the

computer

FDD-2 066 External diskette drive

or FDD connector

Parallel 009 Parallel port Serial 011 Serial port HDD-1 017 Hard disk drive HDD-2 151 First (external) hard disk

drive

HDD-3 067 Second (external) hard

disk drive

HDD-4 152 Third (external) hard disk

drive

Display 050 Display

052 053 054

PCMCIA-1 080 1. Connection of the

PC Card slot

2. PC Card

PCMCIA-2 088 External PC Card Infrared 103 IR DPS 113 DPS Audio (ISA) 153 ISA audio USB-1 154 USB USB-2 155 External USB USB-3 156 External USB USB-4 157 External USB Audio (PCI) 158 PCI audio CDROM-1 215 CD-ROM CDROM-2 216 External CD-ROM DVD-1 217 DVD drive DVD-2 218 External DVD drive

RUNNING THE DIAGNOSTICS

FRU Codes: If an error is detected by the diagnostic

tests, a four-digit FRU code is displayed. The FRU code indicates two suspected FRUs. Replace the FRU that is indicated by the FRU that indicated by the

two leftmost digits

two rightmost digits.

first; then replace the

No FRU

RUNNING THE DIAGNOSTICS

is assigned to code 00. If only one FRU is suspected, the other FRU code is 00. See the reference page before replacing the FRU.

FRU Code FRU

10 System board 11 CPU card 12 DC-DC card 15 Audio card or system board (audio) 16 Modem card 20 Memory 30 Reserved 32 External keyboard 33 External mouse 34 AC Adapter 35 Stereo Speaker 36 Battery pack 37 Secondary battery pack 38 Fan 39 Box speaker 40 LCD assembly 41 DVD or DVD and enhanced video adapter 42 Video card or system board (video) 45 External monitor 50 1. Reseat the diskette drive (FDD-1)

51 1. Reseat the diskette drive (FDD-2)

60 1. Reseat the hard disk drive (HDD-1)

61 1. Reseat the hard disk drive in the

62 1. Reseat the hard disk drive in the

63 1. Reseat the hard disk drive in the

70 PC Card (at the port replicator) 72 PC Card slot assembly 73 Port replicator 74 Main board in the docking station

2. Diskette drive (FDD-1)

2. Diskette drive (FDD-2)

2. Hard disk drive (HDD-1)

docking station (HDD-3)

2. Hard disk drive in the docking station (HDD-3)

docking station (HDD-2)

2. Hard disk drive in the docking station (HDD-2)

docking station (HDD-4)

2. Hard disk drive in the docking station (HDD-4)

General Descriptions 45

FRU Code FRU

75 USB card in the docking station 90 CD-ROM drive 91 External CD-ROM drive 92 DVD drive 93 External DVD drive

If the problem persists after replacement of the FRUs, go to the “Undetermined Problems” section for each model.

RUNNING THE DIAGNOSTICS

ThinkPad 770, 770E, 770X and 770Z

This chapter includes the descriptions for the ThinkPad 770 series computer.

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

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

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

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

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

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

 Copyright IBM Corp. 1999 47

RUNNING THE DIAGNOSTICS

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

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

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

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

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

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

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

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

MODEL-UNIQUE FUNCTIONS

Model-Unique Functions Product Overview

The following table shows an overview of the system features of the ThinkPad 770 series:

Feature Description Processor For 770:

 Intel Pentium MMX 200 MHz,

512-KB L2 Cache

 Intel Pentium MMX 233 MHz,

512-KB L2 Cache

For 770E or 770ED:

 Intel Pentium II 233 MHz,

512-KB L2 Cache

 Intel Pentium II 266 MHz,

512-KB L2 Cache

For 770X:

 Intel Pentium II 300 MHz,

512-KB L2 Cache

For 770Z:

 Intel Pentium II 366 MHz,

556-KB L2 Cache Bus architecture PCI bus Memory

(standard)

Memory (option)

CMOS RAM 114 bytes + 4KB

For 770 or 770E:

 32 MB on the system board

For 770ED:

 32 MB on the system board +

32MB on the SO-DIMM slot

For 770X:

 64 MB in the base DIMM slot  64 MB in the base DIMM slot + 64

MB on the option DIMM slot

For 770Z:

 64 MB in the base DIMM slot + 64

MB on the option DIMM slot

16MB, 32MB, 64MB, or 128MB DIMM card

Note: For 770, 770E, or 770ED: maximum of

288 MB is available For 770X or 770Z: maximum of 320

MB is available

ThinkPad 770, 770E, 770X and 770Z 49

Feature Description Video For 770, 770E, or 770ED:

 13.3-inch, 64K colors, 1024×768

pixel XGA TFT color LCD

 14.1-inch, 64K colors, 1024×768

pixel XGA TFT color LCD

For 770X or 770Z:

 13.7-inch, 64K colors, 1280×1024

pixel SXGA TFT color LCD

 14.1-inch, 16K colors, 1024×768

pixel XGA TFT color LCD

Video RAM For 770, 770E, or 770ED:

 4MB

For 770X or 770Z:

 4 MB or 8 MB

Diskette drive (removable)

Hard disk drive (removable)

Modem card  Fax/modem function

Crystal audio Stereo audio function Infrared transfer  Two IR ports

PC Card, CardBus, MPEG card

720 KB, 1.2 MB, 1.44 MB (3-mode),

3.5-inch

 3.2 GB, 2.5-inch  4.0 GB, 2.5-inch  5.1 GB, 2.5-inch  8.1 GB, 2.5-inch  14 GB, 2.5-inch

 Telephony function

 ThinkPad modem function

 IrDA 1.0  ASK

 1.15 million bps

One Type-III or two Type-II

MODEL-UNIQUE FUNCTIONS

Status Indicators

The system status indicators show the current computer status in different colors (green and orange):

Symbol Color Meaning

Green The battery is fully charged Orange The battery is charging Blinking

orange Green The computer is in suspend

Blinking green

Green Power on

Indicator Panel: The indicator panel shows the

current computer status using these icons.

The battery needs charging

mode. The computer is entering

suspend mode or hibernation mode, or resuming normal operation.

Icon Meaning

.1/ Speaker .2/ Remaining battery .3/ Secondary battery status (left)

Main battery status (right)

.4/ Diskette drive in-use .5/ Hard disk in-use .6/ Numeric lock .7/ Caps lock .8/ Scroll lock

ThinkPad 770, 770E, 770X and 770Z 51

SYMPTOM-TO-FRU INDEX

Symptom-to-FRU Index

The symptom-to-FRU index lists the symptoms and errors and their possible causes. The most likely cause is listed first.

Note

Perform the FRU replacement or actions in the sequence shown in the “FRU/Action in Sequence” column. If a FRU replacement did not solve the problem, put the original part back in the computer. Do not replace a nondefective FRU.

This index can also help you determine the next possible FRUs to be replaced when servicing a computer.

Numeric error codes show the errors detected in POST or system operation. In the following error codes, X can be any number.

If no codes are available, use narrative symptoms. If the symptom is not listed, go to “Undetermined

Problems” on page 66.

Note

For IBM devices not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for that device.

Numeric Error Codes

Symptom / Error FRU / Action in Sequence 10X

101: Interrupt failure. 102: Timer failure. 103: Timer interrupt

failure.

104: Protected mode

failure.

105: Last 8042

command not accepted. 107: NMI test failure. 108: Timer bus test failure.

109: Low meg-chip

select test.

1. System board

SYMPTOM-TO-FRU INDEX

Symptom / Error FRU / Action in Sequence 110

(Planar parity.)

111

(I/O parity.)

11XX

1101: Serial_A test failure.

12XX

1201: Serial_B test failure.

158

(The hard disk password was not set even though the supervisor password is set.)

159

(The hard disk password is not set the same as the supervisor password.)

161

(Dead battery.)

163

(Time and date were not set.)

173

(Configuration data was lost.)

174

(Configuration error: Perform“Checking the Installed Devices List” on page 43 before changing any FRUs.)

175, 177, 178

175: EEPROM CRC

#1 error.

177: Supervisor

password check sum error. 178: EEPROM is not functional.

1. Go to “Memory

Checkout” on page 33.

2. DIMM card

3. Detach the expansion unit if it is attached to the computer.

4. System board

1. Go to “Memory

Checkout” on page 33.

2. Expansion unit or port replicator

3. System board

1. Serial device

2. Communication cable

3. System board

1. System board

(infrared)

Set the password for the hard disk drive.

Set the correct password for the hard disk drive.

1. Go to “Checking the Backup Battery” on page 38.

2. Backup battery

3. System board

1. Set time and date.

2. System board

1. Select OK in the error

screen; then set the time and date.

2. Backup battery

3. System board

1. Check device

configuration.

2. Hard disk drive assembly

3. System board

1. System board

ThinkPad 770, 770E, 770X and 770Z 53

Symptom / Error FRU / Action in Sequence 17XX

1701: Hard disk

controller failure.

1780, 1790: Hard disk

0 error.

1781, 1791: Hard disk

1 error.

183

(Incorrect password entered at the supervisor password prompt.)

184

(Power-on password check sum error.)

185

(The startup sequence is not valid. Suspect that power was off when the startup sequence was being updated.)

186 1. System Board 189 (Bad EEPROM CRC #1

190

(A depleted battery pack was installed when the power was on.)

191XX

(PM initialization error.)

195

(The configuration read from the hibernation area does not match the actual configuration.)

196

(A read error occurred in the hibernation area of the hard disk drive.)

199XX

(Resume error.)

1XX 1. System board 225

(Unsupported memory module.)

24XX 1. Video card

1. Hard disk drive

2. System board

Have the user examine the password.

Reset the power-on password in Easy-Setup.

Reset the startup sequence in Easy-Setup.

error)

1. System Board

Go to “Checking the Battery Pack” on page 37.

1. System board

Check if the configuration was changed.

For example, check if the DIMM card is removed.

1. Run the hard disk

drive test.

2. Hard disk drive

1. System board

1. Check if a supported DIMM is installed.

2. DIMM card

3. System board

2. System board

SYMPTOM-TO-FRU INDEX

Symptom / Error FRU / Action in Sequence 2XX

201: Memory data

error. 202: Memory line error 00–15. 203: Memory line error 16–23.

205: Memory test

failure on on-board memory. 221: ROM to RAM remap error.

301, 303, 304, 305, 3XX

(301: Keyboard error.)

601, 6XX

(601: Diskette drive or controller error.)

602

(Diskette read error.)

604

(Unacceptable ID was read from the diskette drive.)

808X

8081: PCMCIA

presence test failure. (PCMCIA revision number also checked.)

8082: PCMCIA register

test failure.

1. Go to “Memory

Checkout” on page 33.

2. DIMM card

3. System board

1. Go to “Keyboard or

Auxiliary Input Device Checkout” on page 32.

2. Keyboard

3. External numeric keypad

4. External keyboard

5. Keyboard/mouse cable

6. System board

7. DC-DC Card

1. Go to “Diskette Drive

Checkout” on page 31.

2. Diskette drive assembly

3. Diskette

4. System board

1. Go to “Diskette Drive

Checkout” on page 31.

2. Diskette

3. Diskette drive assembly

1. Go to “Diskette Drive

Checkout” on page 31.

2. Diskette drive assembly

3. System board

1. Reseat the PC Card slot assembly.

2. PCMCIA device

3. System board

ThinkPad 770, 770E, 770X and 770Z 55

Symptom / Error FRU / Action in Sequence 860X

(A pointing device error when the TrackPoint is disabled.)

8601: System bus

error–8042 mouse interface.

8602: External mouse

error.

8603: System bus

error or mouse error.

861X

(Pointing device error when TrackPoint III is enabled.)

8611: System bus

error–I/F between 8042 and IPDC.

8612: TrackPoint error.

8613: System board or TrackPoint error.

I9990301 I9990302 I9990305

I9990301: Hard disk

error.

I9990302: Invalid hard

disk boot record.

I9990305: No bootable

device.

I9990303

(Bank–2 flash ROM check sum error.)

Other codes not listed above.

1. External mouse

2. External keyboard

3. System board

4. DC-DC card

1. Reseat the keyboard

cable on the video card.

2. Keyboard

3. External mouse

4. Video card

5. System board

6. Video card

1. Check that the

operating system is installed in the hard disk drive. If not, install the operating system.

2. Reseat the boot device.

3. Check the startup sequence for the correct boot device.

4. Check that the operating system has no failure and is installed correctly.

1. System board

Go to “Undetermined Problems” on page 66.

SYMPTOM-TO-FRU INDEX

Beep Symptoms

Symptom / Error FRU / Action in Sequence

Continuous beeps. 1. Reseat the CPU card.

One beep and a blank, unreadable, or flashing LCD.

One beep, and the message “Unable to access boot source.”

One long and two short beeps, and a blank or unreadable LCD.

One long beep followed by four short beeps each time the power switch is operated. (System cannot power on due to low battery voltage.)

One beep every second. (System is shutting down due to low battery voltage.)

Two short beeps with error codes.

Two short beeps with blank screen.

2. Reseat the video card.

3. System board

1. Reseat the LCD connector.

2. Reseat the CPU card.

3. LCD assembly

4. System board

5. CPU card

1. Boot device

2. System board

1. Reseat the video card.

2. Reseat the CPU card.

3. Video card

4. System board

5. LCD assembly

Connect the AC Adapter or install a fully charged battery.

Connect the AC Adapter or install a fully charged battery. (Allow the system to completely shut down before changing the battery.)

POST error. See “Numeric Error Codes” on page 52.

1. System board

No Beep Symptoms

Symptom / Error FRU / Action in Sequence

No beep, power-on indicator not on, and a blank LCD during POST.

No beep, power-on indicator on, and a blank LCD during POST.

No beep, power-on indicator on, and a blinking cursor only during POST.

ThinkPad 770, 770E, 770X and 770Z 57

1. Go to “Power Systems Checkout” on page 36.

2. System board

3. Check the power outlet.

1. Reseat the CPU card.

2. System board

1. System board

Symptom / Error FRU / Action in Sequence

No beep during POST but system runs correctly.

1. Turn the volume up

and check the speaker.

2. Speaker

3. System board

Audio-Related Symptoms

Symptom / Error FRU / Action in Sequence

In OS/2, DOS, or Windows multimedia programs, no sound comes from the computer. (Only system beeps are heard at power-on.)

Check that the device driver is installed correctly.

CD-ROM-Related Symptoms

Symptom / Error FRU / Action in Sequence

You hear a noise from the CD-ROM drive when the CD-ROM is spinning.

The CD-ROM tray does not open even if you press the CD-ROM eject button.

The compact disc cannot be read.

1. CD-ROM drive

2. System board

Insert a pin into the CD-ROM emergency eject hole and eject the CD-ROM tray.

Make sure that:

 The compact disc is

not dirty. If it is, clean it with a CD-ROM cleaner kit.

 The compact disc is

not defective. If it is, try another compact disc.

 The compact disc is

placed in the tray with the label side up.

 The compact disc

format conforms with one of the following: – Music CD – CD-ROM or

CD-ROM XA

– Multisession

photo CD

– Video CD and

CD-i movie (Windows 95 does not support CD-i movies)

1. CD-ROM drive

2. System board

SYMPTOM-TO-FRU INDEX

Symptom / Error FRU / Action in Sequence

The CD-ROM does not work.

Make sure that:

 The computer power is

turned on and a compact disc is in the CD-ROM drive.

 The CD-ROM drive

connector is firmly connected to the computer.

 The CD-ROM drive

tray is firmly closed.

 The device drivers are

correctly installed.

1. CD-ROM drive If the CD-ROM drive in

the docking station does not work, do the following:

a. Click on Start. b. Move the cursor

to Programs and ThinkPad; then click on ThinkPad Configuration.

c. Click on Docking

Station.

d. Make sure that

you checked

Enable IDE device in the docking station.

Note

Do not use IRQ 11 and 15 for the PCI device setting.

e. Click on OK.

2. System board

DVD-Related Symptoms

Symptom / Error FRU / Action in Sequence

You hear a noise from the DVD drive when the DVD disk or compact disk is spinning.

The DVD tray does not open even if you press the DVD eject button.

ThinkPad 770, 770E, 770X and 770Z 59

1. DVD drive

2. System board

Insert a pin into the DVD emergency eject hole and eject the DVD tray.

Symptom / Error FRU / Action in Sequence

The DVD disc or compact disc cannot be read.

Make sure that:

 The DVD disc or

compact disc is not dirty. If it is, clean it.

 The DVD disc is not

defective. If it is, try another DVD disc.

 The DVD disc is

placed in the tray with the label side up.

 The DVD disc format

conforms with one of the following: – Music CD – CD-ROM or

CD-ROM XA

– Multisession

photo CD

– Video CD and

CD-i movie (Windows 95 does not support CD-i movie)

– DVD-ROM

(DVD-video)

– DVD-movie with

MPEG hardware and software

1. DVD drive

2. System board

SYMPTOM-TO-FRU INDEX

Symptom / Error FRU / Action in Sequence

The DVD does not work. Make sure that:

 The computer power is

turned on and a DVD disc or a compact disc is in the DVD drive.

 The DVD drive

connector is firmly connected to the computer.

 The DVD drive tray is

firmly closed.

 The device drivers are

correctly installed.

 If the DVD drive in the

docking station does not work, do the following:

1. Click on Start.

2. Move the cursor to Programs and ThinkPad; then click on ThinkPad Configuration.

3. Click on Docking Station.

4. Make sure that you checked

Enable IDE device in the docking station.

Note

Do not use IRQ 11 and 15 for the PCI device setting.

5. Click on OK.

1. DVD drive

2. System board

ThinkPad 770, 770E, 770X and 770Z 61

Function-Related Symptoms

Symptom / Error FRU / Action in Sequence

The system does not suspend or resume when the LCD is closed or opened.

The battery Fuel-Gauge does not go higher than 90%.

The memory count (size) appears different from the actual size.

The system configuration does not match the installed devices.

The system hangs intermittently.

1. Go to “Suspend

Mode” on page 26, and check that the computer can enter suspend mode.

2. Boot an operating system and press Fn+F4. If the computer enters suspend mode, suspect that the application program is not working properly.

3. LCD assembly

4. System board

Go to “Checking the Battery Pack” on page 37 and see the note.

Go to “Memory Checkout” on page 33.

Go to “Checking the Installed Devices List” on page 43.

Go to “Intermittent Problems” on page 66.

SYMPTOM-TO-FRU INDEX

Indicator-Related Symptoms

Symptom / Error FRU / Action in Sequence

Indicator incorrectly remains off or on, but system runs correctly.

The indicator incorrectly remains off or on, but system runs correctly.

The battery power status indicator blinks from green, yellow, to orange.

The battery indicator does not turn on when the battery is installed.

1. Reseat the LCD connector on the DC-DC card.

2. LCD cable assembly

3. DC-DC card

4. System board

1. Reseat the DC-DC

card.

2. DC-DC card

3. System board

1. Check that a correct

battery is installed.

2. Reseat the inverter cable.

3. Battery pack

4. DC-DC card

5. System board

1. Reseat the inverter

cable.

2. Battery pack

3. System board

SYMPTOM-TO-FRU INDEX

Infrared-Related Symptoms

Symptom / Error FRU / Action in Sequence

Unable to communicate using the Infrared (IR) Port.

1. Make sure the setup

for the IR is correct.

Use the ThinkPad Configurations utility.

2. Make sure there are no fluorescent lights near the computer. The computer may receive optical noise from the fluorescent light.

3. Run the advanced diagnostic test. If an error occurs and a FRU code is displayed, replace the parts shown by the FRU code.

Keyboard- or TrackPoint-Related Symptoms

Symptom / Error FRU / Action in Sequence

Keyboard (one or more keys) does not work.

TrackPoint does not work. 1. Reseat the keyboard

Pointer moves automatically or does not work correctly.

1. Reseat the keyboard

cables on the video card.

2. Keyboard

3. Video card

4. System board

cables on the video card.

2. Go to “TrackPoint Checkout” on page 39.

3. Keyboard

4. Video card

5. System board

See “TrackPoint Checkout” on page 39.

LCD-Related Symptoms

Important

The TFT LCD for the notebook computer contains over 921,000 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.

ThinkPad 770, 770E, 770X and 770Z 63

Symptom / Error FRU / Action in Sequence

No beep, power-on indicator on, and a blank LCD during POST.

 LCD backlight not

working.

 LCD too dark.  LCD brightness cannot

be adjusted.

 LCD contrast cannot

be adjusted.

 LCD screen

unreadable.

 Characters missing

pels.

 Screen abnormal.

 Wrong color displayed.

LCD has extra horizontal or vertical lines displayed.

1. Reseat the CPU card

2. Reseat the video card.

3. System board

1. Reseat the LCD

connectors.

2. LCD assembly

3. Video card

4. System board

1. See important note

for “LCD-Related Symptoms.”

2. Reseat all LCD connectors.

3. LCD assembly

4. Video card

5. System board

1. LCD assembly

Modem (DSP)-Related Symptoms

Symptom / Error FRU / Action in Sequence

In OS/2, DOS, or Windows multimedia programs, no sound comes from the computer. (Only system beeps are heard at power-on.)

In OS/2, DOS, or Windows, the modem does not work.

Check that the device driver is installed correctly.

Check that the DSP Modem is active.

OS/2 and Windows:

Click on the DSP Modem icon in the ThinkPad Configuration program.

DOS:

Run the MWMODEM ON command.

SYMPTOM-TO-FRU INDEX

PC Card-Related Symptoms

Symptom / Error FRU / Action in Sequence

The PC Card does not work in either the upper slot or the lower slot.

Diagnostic error code: DEV 080

ERR 33 FRU 7210

The PCMCIA slot pin is damaged.

1. Reseat the PCMCIA slot assembly.

2. PCMCIA slot assembly

3. System board

1. PCMCIA slot

assembly

SYMPTOM-TO-FRU INDEX

Symptom / Error FRU / Action in Sequence

The PC Card does not work.

1. Reseat the PC Card

2. Check that the PC Card is enabled in the ThinkPad Configuration program

3. Reseat the PCMCIA slot assembly.

4. PCMCIA slot assembly

5. System board

Peripheral-Device-Related Symptoms

Symptom / Error FRU / Action in Sequence

The external monitor does not work correctly.

Printer problems. 1. Run printer self-test.

Serial or parallel port device problems.

Connect the external monitor to another PC. If the monitor works fine, replace the system board. If not, replace the external monitor.

2. Parallel port wrap test.

3. System board

4. Printer cable

1. Serial/parallel port wrap test.

2. Device

3. Reseat the DC-DC card

4. DC-DC card

5. System board

6. Device cable

Power-Related Symptoms

Symptom / Error FRU / Action in Sequence

Power shuts down during operation.

The system does not power off. (See “Reset Switch” on page 23.)

ThinkPad 770, 770E, 770X and 770Z 65

1. Go to “Power Systems Checkout” on page 36.

2. Battery pack

3. Remove the battery pack and let it cool for 2 hours.

4. DC-DC card

5. System bard

6. Check the power outlet

1. Press the power

shutdown switch.

2. DC-DC card

3. System board

SYMPTOM-TO-FRU INDEX

Other Symptoms

Symptom / Error FRU / Action in Sequence

Errors occur only when the port replicator is used.

Note

If you cannot find a symptom or an error in this list and the problem remains, see “Undetermined Problems.”

See “Port Replicator Checkout” on page 35.

Intermittent Problems

Intermittent system hang problems can be caused by 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.

When analyzing an intermittent problem, do the following:

1. Run the advanced diagnostic test for the system board in loop mode at least 10 times.

2. If no error is detected, do not replace any FRUs.

3. If any error is detected, replace the FRU shown by the FRU code. Rerun the test to verify that no more errors exist.

Undetermined Problems

You are here because the diagnostic tests did not identify which adapter or device failed, installed devices are incorrect, a short circuit is suspected, or the system is inoperative. Follow these procedures to isolate the failing FRU (do not isolate nondefective FRUs).

Verify that all attached devices are supported by the computer.

Verify that the power supply being used at the time of the failure is operating correctly. (See “Power Systems Checkout” on page 36):

1. Power off the computer.

2. Visually check them for damage. If any problems are found, replace the FRU.

3. Remove or disconnect all of the following devices: a. Non-IBM devices

b. Devices attached to the port replicator

c. Printer, mouse, and other external devices

d. Battery pack

e. Hard disk drive

f. External diskette drive

g. DIMM

h. Device in UltraBay II (FDD, CD-ROM, or DVD)

i. PC Cards

4. Power on the computer.

SYMPTOM-TO-FRU INDEX

5. Determine if the problem has changed.

6. If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU.

7. If the problem remains, replace the following FRUs one at a time. Do not replace a nondefective FRU. a. System board b. LCD assembly c. DC-DC card d. Video card e. CPU card

ThinkPad 770, 770E, 770X and 770Z 67

FRU Removals and Replacements

This section contains information about removals and replacements:

 Do not damage any part. Only certified and trained

personnel should service the computer.

 The arrows in the “Removals and Replacements”

section show the direction of movement to remove a FRU, or to turn a screw to release the FRU. The arrows are marked in numeric order, in square callouts, to show the correct sequence of removal.

 If other FRUs must be removed before the failing

FRU is removed, they are listed at the top of the page.

 To replace a FRU, reverse the removal procedure

and follow any notes that pertain to replacement. See “Locations” for internal cable connections and arrangement information.

 When replacing a FRU, use the correct screw as

shown in the procedures.

Reviews “FRU Replacement Notices” on page 19 before replacing any FRU.

Caution

Before removing any FRU, power off the computer, unplug all power cords from electrical outlets, remove the battery pack, and then disconnect any interconnecting cables.

FRU REMOVALS AND REPLACEMENTS

Caution

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.

Attention

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 short circuits.

FRU REMOVALS AND REPLACEMENTS

Attention

The system board is sensitive to, and can be damaged by, electrostatic discharge. Establish personal grounding by touching a ground point with one hand before touching these units.

An electrostatic discharge (ESD) strap (P/N 6405959) must be used to establish personal grounding.

ThinkPad 770, 770E, 770X and 770Z 69

1010 Battery Pack

Note

If the customer has locked the eject lever with security screws, remove the screws first. To remove the security screw, use a 2.5-mm allen wrench.

FRU REMOVALS AND REPLACEMENTS

1020 UltraBay II Device or Second Battery Pack

Note

If the customer has locked the eject lever with security screws, remove the screws first. To remove the security screw, use a 2.5-mm allen wrench.

ThinkPad 770, 770E, 770X and 770Z 71

1030 DVD and Enhanced Video Adapter

FRU REMOVALS AND REPLACEMENTS

Step Size (Quantity) Color Torque

.1/ M2.5 x 6 mm, nylon

coating (2)

Black 4

(kgcm)

FRU REMOVALS AND REPLACEMENTS

1040 Hard Disk Drive

Attention

Do not drop or apply any shock to the hard disk drive. The hard disk drive is sensitive to physical

shock. Incorrect handling can cause damage and permanent loss of data on the hard disk.

Before removing the hard disk drive, have the user make a backup copy of all the information on the hard disk.

Never remove the hard disk drive while the system is operating or is in suspend mode.

Turn the computer upside down.

Step Size (Quantity) Color Torque

.1/ Coin screw (1)

—or— Security screw (1)

Note: To remove the security screw, use a 2.5-mm allen wrench.

Black —

(kgcm)

ThinkPad 770, 770E, 770X and 770Z 73

FRU REMOVALS AND REPLACEMENTS

1050 Backup Battery and DIMM

Backup battery .1/ .2/ .3/ .4/ DIMM .1/ .2/ .5/ .6/ .7/

ThinkPad 770, 770E, 770X and 770Z 75

1060 Keyboard Assembly

 Battery Pack (1010)  UltraBay II Device or Second Battery Pack (1020)

Open the computer.

FRU REMOVALS AND REPLACEMENTS

Step Size (Quantity) Color Torque

.1/ M2.5 x 8 mm, nylon

coating (2)

.2/ M2.5 x 6 mm, nylon

coating (4)

Black 4

(kgcm)

FRU REMOVALS AND REPLACEMENTS

Step Size (Quantity) Color Torque

.3/ M2.5 x 8 mm, nylon

coating (3)

.4/ M2.5 x 4 mm, nylon

coating (1)

Black 4

(kgcm)

ThinkPad 770, 770E, 770X and 770Z 77

1065 Keyboard and Indicator Panel

 Battery Pack (1010)  UltraBay II Device or Second Battery Pack (1020)  Keyboard Assembly (1060)

Keyboard

FRU REMOVALS AND REPLACEMENTS

Step Size (Quantity) Color Torque

.1/ M2.5 x 4 mm, nylon

coating (1)

Yellow 4

(kgcm)

FRU REMOVALS AND REPLACEMENTS

Notes

 Be careful not to remove any key when removing

the frame. If you do remove key, replace it as shown:

Esc

 When replacing the frame, check whether the

click buttons of TrackPoint III can be pressed correctly. (If the frame is not in place, the click buttons do not work.)

ThinkPad 770, 770E, 770X and 770Z 79

Indicator Panel

FRU REMOVALS AND REPLACEMENTS

Step Size (Quantity) Color Torque

.4/ M2.5 x 4 mm, nylon

coating, flathead (2)

Black 4

(kgcm)

FRU REMOVALS AND REPLACEMENTS

1070 Center Cover and Hinge Cap

 Battery Pack (1010)  UltraBay II Device or Second Battery Pack (1020)  Keyboard Assembly (1060)

ThinkPad 770, 770E, 770X and 770Z 81

1080 Power Switch and Bay Eject Lever

 Battery Pack (1010)  UltraBay II Device or Second Battery Pack (1020)  Keyboard Assembly (1060)

FRU REMOVALS AND REPLACEMENTS

Step Size (Quantity) Color Torque

.4/ M2.5 x 4 mm, nylon

coating (1)

Yellow 4

(kgcm)

1. Be sure to distinguish the right and left bay eject lever; then replace the correct lever.

If you have replaced the right lever, open and close it at least twice to ensure that it is seated in the correct position. The right lever must touch the censor switch correctly. Incorrect placement of the lever can damage the switch, thereby causing the bay LED not to work.

ThinkPad 770, 770E, 770X and 770Z 83

2. Follow the procedure shown in the figure. After replacing the bay eject lever assembly, make sure that both levers pop out.

FRU REMOVALS AND REPLACEMENTS

3. Refer to the following figure for the speaker cable route:

ThinkPad 770, 770E, 770X and 770Z 85

1090 LCD Unit

 Battery Pack (1010)  UltraBay II Device or Second Battery Pack (1020)  Keyboard Assembly (1060)  Center Cover and Hinge Cap (1070)

Pull the straps to disconnect the connectors. If the connectors do not disconnect, use a screwdriver.

FRU REMOVALS AND REPLACEMENTS

Note

When replacing the LCD unit, do not place the hinge between the lower shield and the base cover.

Step Size (Quantity) Color Torque

.3/ M2.5 x 4 mm, nylon

coating (1)

Yellow 4

(kgcm)

FRU REMOVALS AND REPLACEMENTS

Step Size (Quantity) Color Torque

.4/ M2.5 x 6 mm, nylon

coating (4)

Black 4

(kgcm)

ThinkPad 770, 770E, 770X and 770Z 87

1100 Standby Battery

 Battery Pack (1010)  UltraBay II Device or Second Battery Pack (1020)  Keyboard Assembly (1060)

FRU REMOVALS AND REPLACEMENTS

1110 Upper Shield

 Battery Pack (1010)  UltraBay II Device or Second Battery Pack (1020)  Keyboard Assembly (1060)  Center Cover and Hinge Cap (1070)  Power Switch and Bay Eject Lever (1080)  LCD Unit (1090)  Standby Battery (1100)

Step Size (Quantity) Color Torque

.1/ M2.5 x 6 mm, nylon

coating (2)

.2/ M1.6 x 4 mm, flathead (2) Black 2

Black 4

(kgcm)

ThinkPad 770, 770E, 770X and 770Z 89

FRU REMOVALS AND REPLACEMENTS

Note

When you reinstall the upper shield, make sure you thread the cable as shown above. Do not thread it in front of the bay opening.

Step Size (Quantity) Color Torque

.4/ M2.5 x 4 mm, nylon

coating (5)

.6/ M2.5 x 6 mm, nylon

coating (1)

Yellow 4

Black 4

(kgcm)

FRU REMOVALS AND REPLACEMENTS

1120 Speaker

ThinkPad 770, 770E, 770X and 770Z 91

1130 Video Card

Pull the puller on the card:

FRU REMOVALS AND REPLACEMENTS

Step Size (Quantity) Color Torque

.1/ M2.5 x 3 mm, nylon

coating (3)

Black 4

(kgcm)

FRU REMOVALS AND REPLACEMENTS

1140 Modem Card

Pull the puller on the card:

Note

Don't forget to replace the blank lid.

Step Size (Quantity) Color Torque

.1/ M2.5 x 3 mm, nylon

coating (1)

Black 4

(kgcm)

ThinkPad 770, 770E, 770X and 770Z 93

1150 DC-DC Card

FRU REMOVALS AND REPLACEMENTS

Step Size (Quantity) Color Torque

.2/ M2.5 x 6 mm, nylon

coating (1)

.3/ Hex head (2) Silver 4

Black 4

(kgcm)

IBM 9548, 9549 Hardware Maintenance Manual

Specifications and Main Features

Frequently Asked Questions

User Manual