Lenovo IBM 310D, IBM 310E, IBM 310ED SERVICE MANUAL
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IBM Mobile Systems
ThinkPad 310, 310D, 310E, 310ED
Hardware Maintenance Manual
February 1998
S05L-1935-00
IBM Mobile Systems
ThinkPad 310, 310D, 310E, 310ED
Hardware Maintenance Manual
February 1998
S05L-1935-00
IBM
Note
Before using this information and the product it
supports, be sure to read the general information
under “Notices” at the back of this manual.
First Edition (February 1998)
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 WARRANTY OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT
NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. Some states do not allow disclaimer of
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 and/or changes in the product(s) and/or the
program(s) described in this publication at any time.
This publication was developed for products and services
offered in the United States of America. IBM may not offer
the products, services, or features discussed in this
document in other countries, and the information is subject
to change without notice. Consult your local IBM
representative for information on the products, services,
and features available in your area.
Requests for technical information about IBM products
should be made to your IBM reseller or IBM marketing
representative.
Copyright International Business Machines
Corporation 1998. All rights reserved.
Note to U.S. Government users–Documentation related to
Restricted rights–Use, duplication, or disclosure is subject
to restrictions set forth in GSA ADP Schedule Contract
with IBM Corp.
ii IBM Mobile Systems ThinkPad 310 (D/E/ED) HMM
About This Manual
This manual contains service and reference information for
IBM ThinkPad 310, 310D, 310E or 310ED (2600) products.
Use this manual along with the advanced diagnostic tests
to troubleshoot problems effectively.
The manual is divided into sections as follows:
The Introduction section provides general information,
guidelines, and safety information required to service
computers.
The product-specific section includes service,
reference, and product-specific parts information.
Important
This manual is intended for trained servicers who are
familiar with ThinkPad products. Use this manual
along with the advanced diagnostic tests to
troubleshoot problems effectively.
Before servicing an IBM mobile product, be sure to
review the safety information under “Safety Notices
(Multi-lingual Translations)” on page ix and “Safety
Information” on page xvi.
iii
Related Publications
The following mobile 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
(Model 340, 355, 360, 370,
700, 701, 720, 750, 755)
Mobile Systems HMM
Volume 3: ThinkPad
Computers
(Model 365, 380, 385, 560,
760, SelectaDock
Mobile Systems HMM
Volume 4: ThinkPad
Computers
(Model 365, 380, 385, 560,
760, 765, 770, SelectaDock
30H2356, S82G-1501-01
30H2357, S82G-1502-03
84H8099, S82G-1503-05
05L1271, S05L-1270-01
Related Diskettes
The following diskettes are available through IBM or your
IBM Authorized Dealer.
Diskette Part, Form Number
ThinkPad 310 Diagnostics
Diskette
ThinkPad 310 Maintenance
Diskette
05L1936, S05L-1936
05L1770, S05L-1770
iv IBM Mobile Systems ThinkPad 310 (D/E/ED) HMM
Contents
Introduction . . . . . . . . . . . . . . . . . . . vii
How to Use Error Messages .......... viii
How to Read POST Error Messages ...... viii
Safety Notices (Multi-lingual Translations) ..... ix
Safety Information . . . . . . . . . . . . . . . . xvi
General Safety . . . . . . . . . . . . . . . . xvi
Electrical Safety . . . . . . . . . . . . . . . xvii
Safety Inspection Guide ........... xviii
Handling Electrostatic Discharge-Sensitive Devices xx
Grounding Requirements . . . . . . . . . . . . xx
Laser Compliance Statement ........... xxi
ThinkPad 310, 310D, 310E, 310ED (2600) .... 1
Read This First .................. 1
Note for Warranty: ................ 2
Checkout Guide . . . . . . . . . . . . . . . . . 3
BIOS Utility . . . . . . . . . . . . . . . . . . . . 11
Power Management Features ........... 12
Symptom-to-FRU Index . . . . . . . . . . . . . . 14
Related Service Procedures ............ 24
Utility Program Diskette .............. 29
Product Overview . . . . . . . . . . . . . . . . . 32
FRU Removals and Replacements ......... 33
Locations . . . . . . . . . . . . . . . . . . . . . 65
310 - System Unit Parts Listing .......... 70
310D - System Unit Parts Listing .......... 71
310/310D - System Unit FRU List ......... 72
310/310D LCD Unit Parts Listing .......... 75
310E System Unit Parts Listing .......... 77
310ED System Unit Parts Listing .......... 78
310E/310ED System Unit FRU List ........ 79
310E/310ED LCD Unit Parts Listing ........ 82
310E/310ED LCD Module FRU list ......... 83
310E (2600-Axx/Cxx/Exx/Fxx) System Unit Parts
Listing . . . . . . . . . . . . . . . . . . . . . 84
310ED (2600-Bxx/Dxx) System Unit Parts Listing . . 85
310E/310ED (2600-Axx/Bxx/Cxx/Dxx/Exx/Fxx) System
Unit FRU List .................. 86
310E/310ED LCD Unit Parts Listing ........ 89
310/310E/310D/310ED Miscellaneous and Other Parts 91
Copyright IBM Corp. 1998 v
vi IBM Mobile Systems ThinkPad 310 (D/E/ED) HMM
Introduction
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
Ensure that all diskette fixes are installed prior to replacing
any FRUs. And, use the following strategy to prevent
unnecessary FRU replacement and service expense:
If you are instructed to replace a FRU and that
does not correct the problem, reinstall the original
FRU before you continue.
Some computers have both a processor board and a
system board. If you are instructed to replace either
the processor board or the system board, and the first
board that you replaced does not correct the problem,
reinstall the original board, then replace the other
(processor or system) board.
If an adapter or device consists of more than one
FRU, an error code may be caused by any of the
FRUs. Before replacing the adapter or device,
remove the FRUs, one by one, to see if the
symptoms change. Replace only the FRU that
changed the symptoms.
Attention
A customized setup configuration (other than default
settings) may exist on the computer you are servicing.
Running Automatic Configuration may alter those
settings. Note the current configuration settings (using
the View Configuration option) and verify that the
settings are in place when service is complete.
The advanced diagnostic tests are intended to test
IBM products. Non-IBM products or modified options can
give false errors and invalid responses.
Copyright IBM Corp. 1998
only
vii
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)
viii IBM Mobile Systems ThinkPad 310 (D/E/ED) HMM
Safety Notices (Multi-lingual Translations)
In this manual, safety notices appear in English with a
page number reference to the appropriate multi-lingual,
translated safety notice found in this section.
The following safety notices are provided in English,
French, German, Italian, and Spanish languages.
Safety Notice 1
Before the computer is powered-on after FRU
replacement, make sure all screws, springs, or other
small parts are in place and are not left loose inside
the computer. Verify this by shaking the computer
and listening for rattling sounds. Metallic parts or
metal flakes can cause electrical shorts.
Avant de remettre l'ordinateur sous tension après
remplacement d'une unité en clientèle, vérifiez que
tous les ressorts, vis et autres pièces sont bien en
place et bien fixées. Pour ce faire, secouez l'unité et
assurez-vous qu'aucun bruit suspect ne se produit.
Des pièces métalliques ou des copeaux de métal
pourraient causer un court-circuit.
Bevor nach einem FRU-Austausch der Computer
wieder angeschlossen wird, muß sichergestellt
werden, daß keine Schrauben, Federn oder andere
Kleinteile fehlen oder im Gehäuse vergessen wurden.
Der Computer muß geschüttelt und auf
Klappergeräusche geprüft werden. Metallteile oder
-splitter können Kurzschlüsse erzeugen.
Prima di accendere l'elaboratore dopo che é stata
effettuata la sostituzione di una FRU, accertarsi che
tutte le viti, le molle e tutte le altri parti di piccole
dimensioni siano nella corretta posizione e non siano
sparse all'interno dell'elaboratore. Verificare ciò
scuotendo l'elaboratore e prestando attenzione ad
eventuali rumori; eventuali parti o pezzetti metallici
possono provocare cortocircuiti pericolosi.
Antes de encender el sistema despues de sustituir
una FRU, compruebe que todos los tornillos, muelles
y demás piezas pequeñas se encuentran en su sitio y
no se encuentran sueltas dentro del sistema.
Compruébelo agitando el sistema y escuchando los
posibles ruidos que provocarían. Las piezas metálicas
pueden causar cortocircuitos eléctricos.
Introduction ix
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.
x IBM Mobile Systems ThinkPad 310 (D/E/ED) HMM
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.
Introduction xi
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.
xii IBM Mobile Systems ThinkPad 310 (D/E/ED) HMM
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.
Introduction xiii
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.
xiv IBM Mobile Systems ThinkPad 310 (D/E/ED) HMM
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.
Introduction xv
Safety Information
The following section contains the safety information that
you need to be familiar with before servicing an IBM
mobile computer.
General Safety
Follow these rules to ensure general safety:
Observe good housekeeping in the area of the
machines during and after maintenance.
When lifting any heavy object:
1. Ensure you can stand safely without slipping.
2. Distribute the weight of the object equally
between your feet.
3. Use a slow lifting force. Never move suddenly
or twist when you attempt to lift.
4. Lift by standing or by pushing up with your leg
muscles; this action removes the strain from the
muscles in your back.
objects that weigh more than 16 kg (35 lb) or
objects that you think are too heavy for you.
Do not perform any action that causes hazards to the
customer, or that makes the equipment unsafe.
Before you start the machine, ensure that other
service representatives and the customer's personnel
are not in a hazardous position.
Place removed covers and other parts in a safe
place, away from all personnel, while you are
servicing the machine.
Keep your tool case away from walk areas so that
other people will not trip over it.
Do not wear loose clothing that can be trapped in the
moving parts of a machine. Ensure that your sleeves
are fastened or rolled up above your elbows. If your
hair is long, fasten it.
Insert the ends of your necktie or scarf inside clothing
or fasten it with a nonconductive clip, approximately 8
centimeters (3 inches) from the end.
Do not wear jewelry, chains, metal-frame eyeglasses,
or metal fasteners for your clothing.
Attention: Metal objects are good electrical
conductors.
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.
Do not attempt to lift any
xvi IBM Mobile Systems ThinkPad 310 (D/E/ED) HMM
Electrical Safety
Observe the following rules when working on electrical
equipment.
Important
Use only approved tools and test equipment. Some
hand tools have handles covered with a soft material
that does not insulate you when working with live
electrical currents.
Many customers have, near their equipment, rubber
floor mats that contain small conductive fibers to
decrease electrostatic discharges. Do not use this
type of mat to protect yourself from electrical shock.
Find the room emergency power-off (EPO) switch,
disconnecting switch, or electrical outlet. If an
electrical accident occurs, you can then operate the
switch or unplug the power cord quickly.
Do not work alone under hazardous conditions or
near equipment that has hazardous voltages.
Disconnect all power before:
– Performing a mechanical inspection
– Working near power supplies
– Removing or installing main units
Before you start to work on the machine, unplug the
power cord. If you cannot unplug it, ask the customer
to power-off the wall box that supplies power to the
machine and to lock the wall box in the off position.
If you need to work on a machine that has
electrical circuits, observe the following precautions:
– Ensure that another person, familiar with the
power-off controls, is near you.
Attention: Another person must be there to
switch off the power, if necessary.
– 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.
exposed
Introduction
xvii
Regularly inspect and maintain your electrical hand
tools for safe operational condition.
Do not use worn or broken tools and testers.
Never assume
from a circuit. First,
powered-off.
Always look carefully for possible hazards in your
work area. Examples of these hazards are moist
floors, nongrounded power extension cables, power
surges, and missing safety grounds.
Do not touch live electrical circuits with the reflective
surface of a plastic dental mirror. The surface is
conductive; such touching can cause personal injury
and machine damage.
Do not service the following parts
when they are removed from their normal operating
places in a machine:
– Power supply units
– Pumps
– Blowers and fans
– Motor generators
and similar units. (This practice ensures correct
grounding of the units.)
If an electrical accident occurs:
– Use caution; do not become a victim
yourself.
– Switch off power.
– Send another person to get medical aid.
that power has been disconnected
check
that it has been
with the power on
Safety Inspection Guide
The intent of this inspection guide is to assist you in
identifying potentially unsafe conditions on these products.
Each machine, as it was designed and built, had required
safety items installed to protect users and service
personnel from injury. This guide addresses only those
items. However, good judgment should be used to identify
potential safety hazards due to attachment of non-IBM
features or options not covered by this inspection guide.
If any unsafe conditions are present, you must determine
how serious the apparent hazard could be and whether
you can continue without first correcting the problem.
Consider these conditions and the safety hazards they
present:
Electrical hazards, especially primary power (primary
voltage on the frame can cause serious or fatal
electrical shock).
Explosive hazards, such as a damaged CRT face or
bulging capacitor
Mechanical hazards, such as loose or missing
hardware
xviii IBM Mobile Systems ThinkPad 310 (D/E/ED) HMM
The guide consists of a series of steps presented in a
checklist. Begin the checks with the power off, and the
power cord disconnected.
Checklist:
1. Check exterior covers for damage (loose, broken, or
sharp edges).
2. Power-off the computer. Disconnect the power cord.
3. Check the power cord for:
a. A third-wire ground connector in good condition.
Use a meter to measure third-wire ground
continuity for 0.1 ohm or less between the
external ground pin and frame ground.
b. The power cord should be the appropriate type
as specified in the parts listings.
c. Insulation must not be frayed or worn.
4. Remove the cover.
5. Check for any obvious non-IBM alterations. Use
good judgment as to the safety of any non-IBM
alterations.
6. Check inside the unit for any obvious unsafe
conditions, such as metal filings, contamination, water
or other liquids, or signs of fire or smoke damage.
7. Check for worn, frayed, or pinched cables.
8. Check that the power-supply cover fasteners (screws
or rivets) have not been removed or tampered with.
Introduction
xix
Handling Electrostatic
Discharge-Sensitive Devices
Any computer part containing transistors or integrated
circuits (ICs) should be considered sensitive to electrostatic
discharge (ESD). ESD damage can occur when there is a
difference in charge between objects. Protect against ESD
damage by equalizing the charge so that the machine, the
part, the work mat, and the person handling the part are all
at the same charge.
Notes
1. Use product-specific ESD procedures when they
exceed the requirements noted here.
2. Make sure that the ESD protective devices you
use have been certified (ISO 9000) as fully
effective.
When handling ESD-sensitive parts:
Keep the parts in protective packages until they are
inserted into the product.
Avoid contact with other people.
Wear a grounded wrist strap against your skin to
eliminate static on your body.
Prevent the part from touching your clothing. Most
clothing is insulative and retains a charge even when
you are wearing a wrist strap.
Use the black side of a grounded work mat to provide
a static-free work surface. The mat is especially
useful when handling ESD-sensitive devices.
Select a grounding system, such as those listed
below, to provide protection that meets the specific
service requirement.
Note
The use of a grounding system is desirable but
not required to protect against ESD damage.
– Attach the ESD ground clip to any frame ground,
ground braid, or green-wire ground.
– Use an ESD common ground or reference point
when working on a double-insulated or
battery-operated system. You can use coax or
connector-outside shells on these systems.
– Use the round ground-prong of the AC plug on
AC-operated computers.
Grounding Requirements
Electrical grounding of the computer is required for
operator safety and correct system function. Proper
grounding of the electrical outlet can be verified by a
certified electrician.
xx IBM Mobile Systems ThinkPad 310 (D/E/ED) HMM
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
Introduction xxi
El uso de controles o ajustes o la ejecución de
procedimientos distintos de los aquí especificados
puede provocar la exposición a radiaciones
peligrosas.
Opening the CD-ROM drive could result in exposure to
hazardous laser radiation. There are no serviceable parts
inside the CD-ROM drive. Do not open.
Some CD-ROM drives contain an embedded Class 3A or
Class 3B laser diode. Note the following.
DANGER:
Laser radiation when open. Do not stare into the
beam, do not view directly with optical instruments,
and avoid direct exposure to the beam.
Radiação por raio laser ao abrir. Não olhe fixo no feixe
de luz, não olhe diretamente por meio de instrumentos
óticos e evite exposição direta com o feixe de luz.
Rayonnement laser si carter ouvert. Évitez de fixer le
faisceau, de le regarder directement avec des
instruments optiques, ou de vous exposer au rayon.
Laserstrahlung bei geöffnetem Gerät. Nicht direkt oder
über optische Instrumente in den Laserstrahl sehen
und den Strahlungsbereich meiden.
Kinyitáskor lézersugár ! Ne nézzen bele se szabad
szemmel, se optikai eszközökkel. Kerülje a
sugárnyalábbal való érintkezést !
Aprendo l'unità vengono emesse radiazioni laser. Non
fissare il fascio, non guardarlo direttamente con
strumenti ottici e evitare l'esposizione diretta al fascio.
Radiación láser al abrir. No mire fijamente ni examine
con instrumental óptico el haz de luz. Evite la
exposición directa al haz.
xxii IBM Mobile Systems ThinkPad 310 (D/E/ED) HMM
ThinkPad 310, 310D, 310E, 310ED
(2600)
Read This First
Before you go to the checkout guide, be sure to read this
section.
Important Notes
Only certified, trained personnel should
service the computer.
Read FRU service procedures before replacing
any FRUs.
Be extremely careful during write operations
such as copy, 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 can be written
over.
Replace FRUs only for the correct model.
When you replace the FRU, make sure the
model of the machine and FRU part number are
correct by referring to the part list.
FRUs should not be replaced because of a
single, un-reproducible 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 non-defective FRU.
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.
How to Diagnose Multiple FRUs: If the adapter
or device has more than one FRU, the error code could be
caused by either FRU. Before replacing multiple FRUs, try
removing or exchanging each FRU, one by one in the
designated sequence, to see if the symptoms change.
What to Do First: The servicer must include the
following in the parts exchange form or part return form
that is attached to the returned FRU:
Copyright IBM Corp. 1998
1
___1. Name and phone number of servicer.
___2. Date of service.
___3. Date when part failed.
___4. Date of purchase.
___5. Failure symptoms, error codes appearing on
display, and beep symptoms.
___6. Procedure index and page number in which
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 or not the damage applies to the warranty by
referring to the following:
Note for Warranty:
During the warranty period, the customer may be
responsible for repair costs if the computer damage was
caused by misuse, accident, modification, unsuitable
physical or operating environment, or improper
maintenance by the customer. The following list provides
some common items that are not covered under warranty
and some symptoms that may indicate the system was
subjected to stresses beyond normal use:
Important
The following is not covered under warranty
LCD panel cracked by applying excessive force
or by 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 improperly inserting a
PCMCIA card or installation of an incompatible
card.
Diskette drive damage caused by pressing the
diskette drive cover or inserting diskettes with
multiple labels.
Damaged or bent diskette eject button.
CD-ROM drive damage caused by excessive
force, shock, or by being dropped.
Fuses blown by attaching a nonsupported device.
Forgotten computer password (making computer
unusable.)
2 IBM Mobile Systems ThinkPad 310 (D/E/ED) HMM
Important
If the following symptoms are present, they may
indicate damage caused by non-warranted activity:
Missing parts may be a symptom of unauthorized
service or modification.
HDD spindles can become noisy if subjected to
excessive force or by being dropped.
How to Disable the Power-On Password:
To clear a password from the system, first identify the
password switch by referring to “Switch Locations” on
page 68, then follow the steps below.
1. Power-off the computer.
2. Unplug the AC Adapter and remove the main battery.
3. Remove the keyboard and thermal plate. See
“Keyboard” on page 41 and “Thermal Plate/CPU” on
page 42.
4. Move the switch from Enable to Disable to bypass the
password.
Note: There is one microswitch used to disable the
password. After removing the thermal plate, locate
SW2 (a 4-bit switch) near the lower-left corner of the
CPU socket. The second bit switch (counting from
the lowest side) is the password enable/disable
switch. Turning the switch to the left is enable; to the
right is disable.
5. Plug the AC Adapter, turn on the system, then press
F2 while the ThinkPad logo is being displayed to
enter the BIOS Utility.
Note: If your customer forgot the password, enter
System Security and set Power On Password setting
to [None] to clear password.
6. Save, then exit from the BIOS Utility.
7. Power off.
8. Unplug the power cable or battery.
9. Move the password switch from Disable to Enable.
Note: To reinstall the password, the user must enter
a password in the BIOS Utility.
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.
ThinkPad 310, 310D, 310E, 310ED (2600)
3
2. Verify the symptoms by attempting to re-create the
failure by running the diagnostic test or by repeating
the same operation.
3. Use the following table with the verified symptom to
determine which page to go to. Search the
symptoms column and find the description that best
matches your symptom; then go to the page shown in
the “Go to” column.
Symptoms (Verified) Go to
Power failure. (The power
indicator does not go on or
stay on.)
POST does not complete.
No beeps, error codes, or
messages are indicated.
POST detected an error and
displayed numeric error
code with error message.
Other symptoms (such as
LCD display problems)
“Power System Checkout”
on page 8.
“Symptom-to-FRU Index” on
page 14 then see “No
Beep Symptoms” on
page 18.
“Symptom-to-FRU Index” on
page 14.
“Symptom-to-FRU Index” on
page 14 then use the
appropriate information on
pages 18 to 23.
Memory Checkout
DIMMs are available for increasing memory capacity.
DIMM DIMM Total
16MB 0MB 16MB
0MB 16MB 16MB
16MB 16MB 32MB
32MB 0MB 32MB
0MB 32MB 32MB
32MB 8MB 40MB
8MB 32MB 40MB
32MB 16MB 48MB
16MB 32MB 48MB
32MB 32MB 64MB
Memory
Warning: This system will not work without DIMM memory
installed.
Memory errors might stop system operation, show error
messages on the screen, or hang the system. Use the
following procedure to isolate memory problems:
Note: Make sure that the DIMM is properly installed into
the connector. A loose connection can cause an error.
1. Power-off the computer and replace the DIMM.
4 IBM Mobile Systems ThinkPad 310 (D/E/ED) HMM
2. Boot from the diagnostics diskette and start the PQA
program (refer to “Running PQA Diagnostics
Program” on page 25).
3. Select the Memory item to run the memory test.
If no error appears, install a new DIMM; if an error
appears, replace the system board.
System Programs in Flash Memory: System
setup programs are stored in flash memory.
Flash Memory Update: A flash memory update is
required for the following conditions:
New versions of system programs.
New features or options are added.
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.
System Board Checkout
The processing functions are performed by the system
board. Processor problems can also be caused by the
system board.
1. Boot from the diagnostics diskette and start the PQA
program (please refer to “Running PQA Diagnostics
Program” on page 25).
2. Run the System Board test to verify the symptom.
This test verifies both the system board and the CPU.
If the tests detect a system board problem, replace the
system board.
Note: Do not touch the keyboard or pointing device when
the system board test is running. This may cause an
unexpected error.
Keyboard and External Input Device Checkout
Note: If an external keyboard is attached, remove it if the
internal keyboard is to be tested.
If the internal keyboard does not work or an unexpected
character appears, make sure that the flexible cable
extending from the keyboard is correctly seated in the
connector on the keyboard connection board on the
system board.
If the tests do not detect a keyboard problem, run the
Keyboard test by doing the following:
ThinkPad 310, 310D, 310E, 310ED (2600)
5
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