IBM WORKPAD z50 MOBILE COMPANION Service Manual

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IBM Mobile Systems

WorkPad z50 Mobile Companion (2608-1Ax) Hardware Maintenance Manual

March 1999

S37L-2095-00

Note

Befor e usi ng th is information and the product it sup p or ts , be sure to r ead th e g eneral inform ati on under “Notices” on page 61.

First Edition (March 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 d o not all ow dis c l aimer or expres s or impl i ed warranties in certain transactions; therefore, this statement may not apply to you.

This publ ication could inc lude 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 countr y.

Requests for technical information about IBM products should b e m ad e t o your IB M aut h o ri z ed d ealer or your IBM marketing representative.

Government Users – Documentation related to restricted rights – Use, duplication, or disclos ure is subject to restrictions set forth in GSA ADP Schedule Contract with IBM Corp.

About This Manual

This manual contains service and reference information for the WorkPad z50, Mobile Companion. Use this manual along with the diagnostic software to troubleshoot problems effectively.

This manual is divided into sections as follows:

•

The Introduction section provides general information,

and safety information required to service computers.

•

The product-specific section includes service,

refer ence, and product-specific par ts information.

Importa nt

This manual is intended for trained service personnel who are familiar with WorkPad products.

Before servicing an IBM WorkPad product, be sure to

review the safety information under “Safety Notices” on page viii and “ S afety Inform at i on” on page xii.

iv IBM Wor kPad z50, Mobile Companion iv

Introduction .........................................................................vii

MPORTANT SERVICE INFORMATION VII

FRU Replacement Strategy.......................................................vii

AFETY NOTICES (MULTI-LINGUAL TRANSLATIONS) VIII

SAFETY INFORMATION XII

General Safety............................................................................xii

Electrical Safety........................................................................xiii

Safety Inspection Guide............................................................ xiv

Handling Electrostatic Discharge-Sensitive Devices.............xvi

Grounding R e quirements.........................................................xvi

ORKPAD Z50 MOBILE COMPANION (2608) 1

EAD THIS FIRST 1

CREW TIGHTENING INFORMATION 2

RODUCT OVERVIEW 5

HECKOUT GUIDE 6

Audio Checkout............................................................................7

Keyboard Checko ut.....................................................................8

Memory Checkout........................................................................8

Modem Checkout .........................................................................9

Power Systems Checkout.............................................................9

Backup Battery Checkout ( N onr echar geable).........................13

The Battery Calibration Application ........................................13

ROM Card Checkout.................................................................14

TrackPoin t Ch e c k o u t ................................................................. 1 5

Cradle Checkout ........................................................................15

External Monitor Self-Test........................................................15

NSTALLING THE ROM/DRAM CARD 17

Removing the ROM/DRAM Card..............................................18

Brightness/Contrast Buttons Checkout ....................................19

OWER MANAGEMENT FEATURES 20

Full Power Mod e .......................................................................2 0

Suspend Mode ............................................................................20

YMPTOM-TO-FRU INDEX 21

Numeric Error Codes................................................................21

Function-Related Symptoms......................................................23

Indicator-Related Symptoms.....................................................23

Infrared-Related Symptoms.......................................................23

Keyboard- or TrackPoi nt-Related Symptoms..........................24

LCD-Related Symptoms.............................................................24

Peripheral Device Related Symptoms......................................25

Power-Related Symptoms..........................................................25

Other Symptoms.........................................................................25

Intermitte n t Prob l em s ................................................................ 2 6

Undetermined Problems............................................................26

UNNING THE DIAGNOSTICS 27

PC Card Slot Test ......................................................................27

UUID ..........................................................................................28

ELATED SERVICE PROCEDURES 28

Status Indicators and Control Buttons.....................................28

Application Launching Key Assignm ents.................................29

EMOVI NG AND REPLACING DEFECTIVE FRUS 30

Important Notice........................................................................32

Removal reference .....................................................................34

1010 Backup Batteries..............................................................35

1020 ROM/D RA M Card...........................................................36

1030 Battery Pack.....................................................................38

1040 Keyboard Ass e m bly.........................................................39

1050 Bottom Cover...................................................................40

1060 Mainboar d.......................................................................42

1070 LCD Bez el........................................................................43

1080 LCD Unit..........................................................................44

1090 Inverter Card and LCD Panel........................................45

1110 FPC As s embly..................................................................46

1120 Speaker.............................................................................47

1130 Micropho ne......................................................................47

1140 Audio P or ts......................................................................48

1150 PC Car d Slot Assembly...................................................48

1160 RJ-11 Assembly ...............................................................50

1170 Hardware Button Board.................................................51

1180 Top Cover........................................................................52

OCATIONS 53

Front Right View........................................................................5 3

Left View.....................................................................................54

Right View ..................................................................................54

Rear View...................................................................................55

Bottom View ...............................................................................55

ARTS LISTING 56

System Unit FRU List ................................................................57

LCD Unit Parts Lis t...................................................................58

Miscellaneous and Other Parts.................................................59

Option Parts FRU List...............................................................59

Other Parts .................................................................................59

CRU ............................................................................................59

Tools ...........................................................................................59

Power Cord ................................................................................60

OTICES 61

Trademarks ................................................................................61

vi IBM WorkPad z50, Mobile Companion vi

Introduction

Important Service Information

Important

Software fixes are cus t om er ins t al lable. Such fi xes are located on th e PC C om p an y B ul l et in Board Servic e (BBS). The direct line for modem connection is 919-55 70001 or tieline 255-0001 (IBM internal phone number).

Advise customers to contact the PC Company HelpCenter at 800-722-2227 if they need assistance in obtaini ng or ins t al li ng software fi xes.

Customers in Canada should call IBM HelpPC at 800-5653344 for assistance or down-load information. The Ca nadian BBS phone numbers are:

Montreal 515-938-3022 Toronto 905-316-4255 Vancouver 604-664-6464 Winnipeg 204-934-2735

FRU Replacement Strategy

Before Replacing Parts

Ensure t h at all s oftware fixes ar e i ns t all ed pr i or t o replacing any FRUs listed in this manual.

Use the follow ing strategy to preve nt unnecessary FR U replac em ent and servic e exp ense:

•

If you are instructed to replace a FRU and that

does not correct the problem, reinstall the original FRU before you continue.

•

Some compu t ers have both a proces sor board and a

mainb oard . If you are instructed t o rep lace either th e processor board or the mainboard, and the first board that you replaced does not correct the problem, reinst all t h e original board, and then repl ac e th e other (processor or syst em) b oard.

•

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 faulty FRU.

Safety Notices (Multi-lingual Translations)

In this manual, safety notices appear in English with a page number r ef erence to the appropriate mu lti-lingual, translated safety notice found in this section.

The follow i ng s afety notices are provided in En gl is h, French, German, Italian, and Spanish languages.

Safety Notice 1

Befor e the c om put er is pow er ed-on after FRU replacement, make sure all screws, springs, or other small p arts are in place and are n ot left loose inside th e computer. Verify this by shaking the computer and listeni ng for rat tl in g s ounds. Metallic p ar ts or metal flakes can cause electrical shorts.

Avant de remettre l'ordinateur sous tension après remplacement d'une unité en client èle, vérifi ez qu e tous les ressorts, vis et autres pièces sont bien en place et bien fixées. Pour ce faire, secouez l'unité et assurezvous qu'aucun bruit suspect ne se produit. Des pièces métalliques ou des copeaux de métal pourraient causer un court-circuit.

Bevor nac h einem FRU-Aus t aus c h d er C om put er w i eder ange schlossen wird, muß sicherge stellt werden, daß keine Schrauben, Federn oder andere Kleinteile fehlen oder im Gehäuse vergessen wurden. Der Computer muß geschüt t elt und auf klapp er g eräus che geprüft wer d en . Metallteile oder splitter können Kurzschlüsse erzeugen.

Prima di accendere l'el ab oratore dop o ch e è stat a effe ttuata la sostituzione di una FRU, accertarsi che tut te le viti, le molle e tune le altri parti di piccole dimensioni siano nella corretta posizione e non siano sparse all'intern o dell'elaboratore. Verificare ciò scuotendo l'elab oratore e prest and o attenzione ad e ven tuali rumori ; eventuali parti o pezzetti metallici possono provocare cortocircuiti pericolosi.

Antes de encender el sist em a d es pu es de sus t i tu ir un a 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 agitand o el sis t em a y es cuchand o los p osi bl es ru id os qu e provoc arían. Las piezas m et álicas pueden c aus ar cortocirc uit os el éctri cos.

viii IBM Wor kPad z50, Mobile Companion viii

Safety Notice 2

The battery pack contains small amounts of harmful substances. Do not disassemble it, throw it into fire or water, or short-circu it it. Dispos e of the battery as required by local o rdinances or regulations. Use only the batter y in th e ap propriate parts lis ting when repl ac in g the batter y p ac k. Use of an incorrect b att ery can result in igniti on or exp l os ion of the battery.

La bat terie contient du nicke l. Ne la démontez pas, ne l'exposez ni au feu ni á l'eau. Ne la mettez pas en courtcircuit. P our l a met tr e au rebut, conf orm ez -vous a 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 eftet, une batterie inappropriée risque de prendre feu ou d'exploser.

Akkus ent h alten geringe M engen von Nickel . Sie dur fen nicht zerl eg t , wiederaufg el ad en , kur zg es c hlossen, od er Feuer oder Wasser ausgesetzt werden. Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Beim Ersetzen der Batterie nur Batterien des Typs ver w end en , der in der Ersatzteilliste aufgeführt ist . Der Eins atz falscher Batt erien kann zu Entzü nd ung oder Explosion führen.

La batter i a c onti ene piccole qu ant it à di nic h el. N on smontarla, gettarla nel fuoco o nell'acqua né cortocircuitarla. Smaltirla secondo la normativa in vigore (DPR 915/82, successive dispos izioni e disposizioni locali). Quando Si sostituisce la batteria, utilizzare soltanto i tipi inseriti nell'appropriato Catalogo parti. L'impi eg o di un a batteria non ad att a p ot r ebbe determi nare l'incendi o o l'esplosi on e dell a b at t er i a st essa.

Las baterías contienen pequeñas cantidades de níquel. No las desmonte, ni recargue , ni las eche al fue go o al agua ni las cortocircuite. Deséchelas tal como dispone la normativa local. Utilice sólo ba terías que se en c uentren en la lista de piezas al sustituir la batería. La utilización de una bat erí a n o apropiada pued e provocar la ignic i ón o explosión de la misma.

Safety Notice 3

If the LCD br eaks and the fluid fr om inside the LCD g et s into your ey es or on you r hands, immed i at ely wash the affect ed ar e as wi t h w at er f or at leas t 15 mi nutes. Seek medica l c are if any symptoms from the fluid ar e pr es en t after washing.

Si le panneau d'aftichag e à cristaux liquid es s e brise et que vous rec ev ez dans les yeux ou sur les mains un e partie du fluide, rincez-les abondamment pendant au moins quinze minutes. Consultez un médecin si des symptômes persistent apres le lavage.

Die Leuchts toffröhr e im LCD~BiIdsch ir m ent hält Quecksilber. Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Der LCDBildschirm besteht aus Glas und kann zerbrechen, wenn er unsachgemaß 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 anschl i eß end ein Arzt aufg esucht werden .

Nel caso che caso l'LCD si do vesse rompere ed ii liquido in esso contenuto entr asse in contatto con gli occhi o le mani, lav ar e im m ediatament e le par ti interessate c on acqua corr ente per almen o 1 5 mi nut i; poi consult are un medico se i sintomi dovessero permanere.

Si la LCD se r omp e y el fluido de su inter i or 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 síntom a del fluido despues de lavarse.

Safety Notice 4

To avoid shock, do not remove the plastic cover that surrounds the lower portion of the inverter card.

Afin d'évi ter tout risque de choc électrique, ne retirez pas le cache en plastique protegéant la partie inférieure de la carte d'al im entation.

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 qui te la cubierta de plástico que rodea la parte baja de la tarjeta invertida.

x IBM WorkPad z50, Mobile Companion x

Safety Notice 5

Though m ai n batteries have l ow vol tage, a short ed or ground ed battery can pr oduce enough current to burn combust i bl e m aterials or personnel.

Bien que le voltage des batteries principale s so it peu élevé, l e court-circuit ou l a mise à la masse d'une b atterie peut produire suffis am ment de courant p ou r br ûl er des matériaux combus tib les ou causer d es br û lures corporelles graves .

Obwohl H au pt b at t er i en ei n e niedrige Span nu ng hab en, können si e doc h b ei Ku rzs c h luß oder Erdung g en ug 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 ci rcuito o a massa può fornire corrente sufficiente da bruciare materiali combust i bi li 0 provocare usti oni al tecnici di manut enz i on e.

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.

Safety Notice 6

Before removing any FRU, power-off the com puter, unplug all power cords from electrical outlets, remove the batter y p ac k, th en dis connect an y int er connecting c abl es .

Avant de r etirer une unité r emp l aç able en clièntel e, mettez le système hor s tensio n, débranchez tous les cordons d'alimentation des socles de prise de courant, retirez la batterie et déconnectez tous le s cordons d'interface.

Die St romzufuhr muß abgeschaltet, alle Stromkabel aus der Steckdose gezogen, der Akku entfernt und alle Verbindungskabel abge nommen sein, bevor eine F RU entfernt wir d .

Prima di rimuovere qualsiasi FRU, spegnere il sistema, scollegare dalle prese elettrich e tutti i cavi di alime ntazione, rimuo vere 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 baterí a y, a c ont in uación, desconecte cualq uier cable de conexi ón entre disposit i vos .

Safety I n fo rmation

The following section contains the safety information that you need t o be familiar with before servic i ng an IB M m ob ile comput er.

General Safety

Follow these rules to ensure general safety:

•

Observe good housekeeping in the area of the

machines during and after mainten ance.

•

When lifti ng an y h ea vy object:

1. Ensure you can stand safely without slipping.

2. Distribut e the weight of the obj ec t equally between you r f eet.

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

cust omer, or th at m ak es t h e equi p m ent unsafe.

•

Before you st art th e m ac hi n e, ens ur e t h at oth er

servic e representatives and the cus t om er ’s personnel are not in a haz ar d ous pos ition.

•

Place remov ed c over s an d other parts in a saf e

place, away from all personnel, whil e 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 ab ove y our 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 you r cl othing.

Attention: Metal objec ts ar e go od el ec t rical conductors.

•

Wear safet y gl asses when you ar e: ham m ering,

drilling, soldering, cutting wire, attaching springs, using solvents, or working in any other conditions that might be h az ar d ous to your eyes.

•

After service, reinstall all safety shields, guards,

labels, and ground wires . Replace any saf ety device that is worn or defective.

•

Reinstall all covers correctly before returning the

machine to the customer.

Do not attempt to lift any

xii IBM WorkPad z50, Mobile Companion xii

Electrical Safety

Obser ve th e f ollow i ng rules when working on electrical equipm en t.

Importa nt

Use only ap proved tools and t est equ ip m ent. Some hand tools hav e h and l es c ov ered with a soft mat er i al that does not insulate you when working with live electrical currents.

Many customers have, near th eir equipment, ru bb er fl oor mats that contain small conductive fibers to decrease electrostatic discharges. Do not use this type of mat to protect you rself from el ect rical shock.

•

Find the room emergency power-off (EPO) swit ch,

disconnecting switch, or electrical outlet. If an electrical accident occurs, you c an th en 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:

- Perf ormin g a m ec hanical insp ect i on

- Working near power supplies

- Removi ng or ins t all i n g m ain units

•

Before you start to work on the machine, unplug the

power cord. If you cannot unplug it, ask the customer to pow er-off the wall box that su pplies power to the machine and to lock the wal l bo x in th e of f posit ion.

•

If you need to wor k on a m ach ine 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 han d w h en w ork ing with powered-on electrical equipment; keep the other hand in your pocket or behind your bac k.

Attention: There must be a c omp lete circuit to cause electrical shock. By observing the above rule, you may prevent a current from passi ng through your body.

- When using testers, set the controls correctly and use the approved probe leads and acce ssories for that tester.

- Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds suc h as m etal floor strips and machine frames.

Obser ve th e sp ec i al s afety precaut i ons when you work with very high volt ages; these instructions ar e in the saf ety s ections of maint en ance informati on. Use extrem e c ar e wh en me as ur i ng hi g h vol tages.

exposed

•

Regularly inspect and maintain your electrical hand

tools for s afe operation al c on dit ion.

•

Do not use worn or broken tools and testers.

•

Never assume

from a circuit. First, off.

•

Always look carefully for possible hazards in your

work area. Exam ples of these haz ards are moist floors, nongrounded power extension cables, power surges, and m is s ing safety grounds.

•

Do not touch li ve el ec tr ical circuits w it h the ref l ect i ve

surfac e of a plas t ic d ent al mirror. The surface is conductive; such touching can cause personal injury and machine damage.

•

Do not service the following parts

when they are removed f rom their normal operating pla ces in a mach ine:

- 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

- Switch off power.

- Send another person to get medical aid

that p ow er has been disconnected

check

that it has been powered-

with the power on

yourself.

while first aid is being administered.

Safety Inspection Guide

The intent of this inspect i on guide is to assist you in identifying potentially unsafe conditions on these products. Each mac hi n e, as it w as des igned and built, had required safety items installed to protect users and service personnel from injury. This guide addresses only those items. However , g ood ju dg m ent should be us ed to id entify potential safety h az ar ds du e t o att ac hment of non-IBM featur es 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

voltag e on the frame can cause serious or f atal electrical shock)

•

Explosive hazards, such as a damaged CRT face or

bulging capacitor

•

Mecha nical hazards, such as loose or missing

hardware

xiv IBM WorkPad z50, Mobile Companion xiv

The guid e cons is ts of a s eries of steps pres ented 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

conditi on . Us e a met er to m eas ure third-wir e ground c ontinuity for 0. 1 ohm or less betw een the external ground pin and frame grou nd .

b. The power cord should be the appropriate type

as specifi ed in th e p arts lis t in gs .

c. Insul at ion must not be fr ayed or worn.

4. Remove the cover.

5. Check for any obvious non-IBM alterations. Us e

good judg m en t as to t h e s af et y of an y n on- IBM alterations.

6. Check inside the unit for any obvious unsafe

conditi ons , suc h as metal filings, c ontaminati on, w ater or other liq ui ds , or si gns of f ir e or sm ok e d am ag e.

7. Check for worn, fraye d, 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 b etw een objects. Prot ect ag ainst ESD damage by equalizing the charge so tha t the machine, the part, th e wor k m at, an d t h e person handlin g th e par t are all at the same charge.

Notes

1. Use product-specific ESD procedures when they

exceed th e req ui rements noted here.

2. Make sure that the ESD protective devices you

use have been certified (ISO 9000) a s fully effective.

When hand li ng ESD-sensit ive parts:

•

Keep the parts in protective packages until they are

inserted into the product.

•

Avoid contact with other people.

•

Wear a ground ed wris t strap against your skin to

eliminate static on your body. Approved static straps protect t h e us er f r om hig h-operatin g vol tages (110V) .

•

Prevent the part from touching your clothing. Most

clothing is insulative and retains a charge even when you are we ari ng a wrist strap.

•

Use the black side of a ground ed w ork m at to provide

a static-free work surface. The mat is especially useful when handling ES D- sensitive de vices. Select a groundi ng s ys tem, such as thos e lis ted below, to provid e pr ot ection that meets t h e sp ecif ic service requir em en t.

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 gr e en-wire ground .

- Use an ESD common ground or reference point wh en working on a doubl e- i ns ul ated or batter y- op erated system . You c an us e c oax or connector-outsid e sh el ls on t h es e s yst ems .

- Use the round ground-prong of the AC plug on AC-ope rated computers.

Grounding Requirements

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

xvi IBM WorkPad z50, Mobile Companion xvi

WorkPad z50 Mobile Companion (2608) Read This First

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

Important

•

Only certified trained personnel should service

the compu ter .

•

Read FRU service procedures before replacing

any FRUs.

•

Replace FRUs only for the correct model.

When you replace the FRU, make sure the model of the mach in e and FRU p art nu m b er ar e c orr ec t by referring to the parts list.

•

FRUs should not be replaced because of a

single, unreproducible failure. Single failures

can occur from a variety of reasons that hav e nothing to do with a hardware problem, such as cosmic radiation, electrostatic discharge, or software errors. FRU replacement should be considered only when a recur r in g problem exists . If this is suspected, clear the log error and run the test agai n. Do n ot r epl ace any FRUs if log errors do not appear.

•

Be careful not to replace a nondefective FRU.

W orkP ad z50 M ob il e C om p ani on 1

Screw Tightening Information

Loose screws can cause reliability problems. The IBM WorkPad z50 addresses this problem with nylon coated screws. Tighten screws as follows:

Plastic to Plastic

Turn an additional 90 deg re es af t er th e sc rew head touches the surface of the plastic part.

90 Degrees More

Plastic

Logic card to Plastic

Turn an additional 180 degrees after the screw head tou ches th e s u rface of t he lo gic card .

180 Degrees More

Logic Card

Plastic

Torque Driver

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

Cradle Problems: If you suspect a problem with the

cradle, see “Cradle Checkout” on page 15.

How to Diagnose Multipl e FRUs: When the

adapter or the 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.

2 IBM WorkPad z50, Mobile Companion 2

Attention

Pushing the WorkPad z50’s Power but ton will power on (or resume) the system, or put the system in suspend mode: there is no powe r-off state.

If the AC Adapter, battery pack, and backup battery are removed, the system is reset and all the stored data is lost. There is no lithium battery to retain m emory while these power sources are removed.

What to Do First: The service personnel must fill in the

following information in the par ts exchange form or parts return form that is attached to the returned FRU:

__ 1 Name and phone number of service pers onnel __ 2 Date of service __ 3 Date when the part failed __ 4 Date of purchase __ 5 Failure symptoms, error codes appearing on the monitor, and

__ 6 Procedure index and page number in which t he f ailing F R U __ 7 Failing FRU name and part number

__ 8 Machine type, model number, and s erial num ber __ 9 Customer’s name and address

Befor e ch ec kin g pr oblems with th e c omp uter, determine whether the damage is covered under the warranty by referring to the following:

During th e w arranty peri od, t h e cus t omer may be responsible for repair cost s if the computer damage was caused by misuse, accident, modification, uns uit able physic al or op er ati n g environment, or improper m ai ntenance by the customer. The following list provides some common items th at are n ot c over ed under warr ant y and some symptoms that may indicate that the system was subjected to stress beyond normal use:

beep symptoms was detected

The following is not covered under warranty:

•

LCD pa nel 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 ins tallation of an incompatib l e card

•

Fuses blown b y attachment of a nonsupport ed

device

W orkP ad z50 M ob il e C om p ani on 3

The f ollowing symptoms m ight indicate damage caused by non warranted activities:

Missing parts may be a symptom of unauthorized service or modification.

Attention

When resetting the system, all programs and stored data other th an th e op erating system wi ll be erased.

Any password that is set for testing purposes should be disabl ed b ef or e returning th e W orkPad z50 to the customer.

4 IBM WorkPad z50, Mobile Companion 4

Product Overview

Refer to th e f oll ow i ng t abl e for an overview of t h e s yst em features of the WorkPad z50 Mobile Companion:

Feature Description

Processor NEC VR4121 Chipset NEC VRC4171A Graphic/Video

Controller OS/APP ROM 20MB (32MB Japan) Memory 16MB Upgradable to 48MB Stora ge Memory CompactFlash Type II socket PC Card One type III slot I/O Ports RJ-11 Modem port (US/Canada/

Audio External earphone jack

Pointing Device TrackPoint III AC Adapter 45watt type Internal Modem Only avail able for US/Can ada/Japan

Battery Pack 16. 65watt Backup Battery Size AAA x 2 LCD Display 8.2" (inch) DSTN

ITE IT8181

Japan m od els onl y) Infrared Serial port Extern al dis pl ay port Cradle connector

External microphone jack Internal speaker Built-in microphone

models

W orkP ad z50 M ob il e C om p ani on 5

Checkout Guide

Use the following procedure as a guide for computer problems.

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 tes t (r ef er to

“Running the Diagnostics repeating the same op eration.

Note

To run the diagnostics test, refer to “Running the Diagnos t ic s ” on pag e 27.

If the sympt oms are intermitt en t an d c ann ot be re-created (and therefore not verified), go to “Symptom-to-FRU Index” on page 21 and then go t o “Int ermittent Problems” on page 26.

3. Use the following table with the verified symptom to

determine which page to go to. Search the symptoms column, an d fin d t h e desc ri ption that best matches your sy mptom; then go to the page sho wn in the “Refer To” column.

Symptoms (Verified) Refer To

Power failure: The power indicators (AC Adapter LED or P ower on/Battery status LED) are not lit.

Audio is not properly functioning.

Keyboard does not work properly.

Internal fax/modem does not work.

Suspect mainboard or ROM card problems.

TrackPoint problems . “TrackPoint Checkout” on

Cradle does not communicate proper l y.

Exte rnal monitor does not display.

The diagnostic test detect ed an er r or an d displ ayed an error code.

Test” on page 27) or by

“Power Systems Checkout” on page 9.

“Audio Ch ec k out” on page 7.

“Keyboard Checkout” on page 8.

“Modem Checkout” on page 9.

“ROM Card Checkout” on page 14.

page 15. “Cradle Checkout” on page

15. “External Mo nitor Self-Test”

on page 15. “Running the Diagnostics

Test ” on page 27.

6 IBM WorkPad z50, Mobile Companion 6

Symptoms (Verified) Refer To

Other symptoms (such as LCD display problems).

PC cards do not work.

Brightness/contrast buttons do not work.

“Symp t om- to-FRU Index” on page 21.

“PC Card Slo ts Test” on page 27.

“Brightness/Contrast Buttons Checkout” on page 19.

Audio Checkout

Speaker Checkout: If you suspect a problem with the

speaker do the following:

1. Play an audio file. If no sound is heard, go to the

diagnostic menu (see “Running the Diagnostics Test” on page 27).

2. Select Audio and r u n the diagnostic test .

3. If the test d et ects an au dio problem, do the followin g:

Click Start, Programs, WorkPad, and then Rapid Access. Check that “Mute” is not enabled in the

Rapid Ac c ess ut i lit y. Clic k t h e “V ol um e & S oun ds ” icon in the Control Panel, adjust the volume to mid position and click any sound: if no sound is heard, do the follow i ng on e at a ti m e:

• Reseat the connector

• Replace the speaker

• Replace the mainboard

Go to “Microphone Checkout” if the speaker is working properly.

Microphone Checkout: If you suspect a problem with the

microphone, first check if the speaker is working (see above), then do the following:

1. Press the microphone button and record and

playback any sound.

2. If no sound is heard, do the following one at a time:

• Reseat the microphone cable

• Replace the microphone cable

• Replace the mainboard

W orkP ad z50 M ob il e C om p ani on 7

Keyboard Checkout

If the 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 mainboard. If the keyboard cable connection is correct, run the Keyboard Test by doing the following:

1. Go to the diagnostic menu (see “Running the

Diagnos t ic s Test” on page 27).

2. Select Keyboard and run the diagnostic test. A

layout of t h e k eyb oard appears on t h e sc r een.

3. Check that when each k ey is pressed, the key’s

positi on on th e k eyboard layout on the screen changes to a blue square.

4. Press OK to end the tes t.

If the tests detect a keyboard problem, do the followin g on e at a time to correct the problem. Do not replace a no n def ecti ve FRU:

•

Reseat the keyboard cable.

•

Replace the keyboard .

•

Replace the mainboard.

Memory Checkout

The WorkPad z50 Mobile Compani on is shi pp ed w it h 16 MB on-board memory. Memory can be upgraded to 48MB by adding a single 32MB DRAM card.

Defective memory cards may show an error message during the POST or cause the system to hang or stop system operations.

Refer to th e f oll ow i ng t o is olate memory problems:

1. Remove all power sources (AC power, battery pack,

and backup battery). Remove any installed DRAM card from its slot (see page 18).

2. Connect to a power sourc e and turn on the

W orkP ad z50.

3. If an error appears during POST, replace the

mainboard.

4. Remove all power sources (AC power, battery pack,

and backup battery) and reinstall the DRAM card.

5. Connect to a power sourc e, t h en turn on the

W orkP ad z50.

6. If an error appears during POST, replace the DRAM

card.

8 IBM WorkPad z50, Mobile Companion 8

Modem Checkout

If a modem problem occurs, do the following:

1. Open the Terminal program . Double click the “Make

a New Session” icon to open the Session Pr op ertie s window.

2. Click “Configure…”. In the Device Proper t i e s

window check the “Manual Dial” box.

3. Issue the ATA command.

4. If there is no sound, re place the mainboard.

Note:

The US, Canada, and Japan models have an internal fax/modem; the European models do not.

Power Systems Checkout

To determine whether a power systems problem is due to the AC Adapter or the battery pack, do the following:

1. Remove the battery pack.

2. Connect the AC Adapter and lock the battery release

lock. 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 suspe ct the problem is due to the AC Adapter, go to “AC Adapter Checkout”.

If you suspect the problem is due to the battery pack, go to “Battery Pack Checkout”.

Exte rnal Power/Charge Status LE D indicates the following status:

LED AC Adapter Battery Pack

Amber Connected

Green Connected Li-ion (standard or high-

Green Connected Dry cell battery is

Not lit

Not connected

Li-ion (standard or highcapacity battery)

capacity battery)

connected or no battery is connected

——

Charge

Status

Not full

Full

—

W orkP ad z50 M ob il e C om p ani on 9

AC Adapter Checkout: You are here because the

W orkP ad z50 f ails onl y w h en the AC Adapter is us ed.

•

If the power pr ob lem occurs onl y wh en t h e cradle is

used, replace the cradle.

•

If the power-on indicator for the AC Adapter does not

turn on, check the power cord of the AC Adapter for correct continuity and installation.

1. Unplug the AC Adapter cable from the WorkPad z50

and measure the output v olt age at the plug of th e AC Adapter c abl e. S ee th e following figur e:

Pin Voltage (V dc)

1 19 V (+ 1.5 V, - 0 V) 2Ground

a. If the voltage is correct, replace the mainboard. b. If the voltage is still incorrect, go to the next step.

2. Unplug the AC Adapter cable from the ac power

outlet and w ait 5 mi nutes or longer to all ow th e overvol tage protection circuit or ot h er prot ection circuits to be fully discharged and initialized.

3. Plug the AC Adapter cable into the ac power outlet.

4. Measur e th e out p ut v oltage of the AC Ad apt er.

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

Adapter.

Note:

10 IBM WorkPad z50, Mobile Companion 10

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

Battery Pack Checkout: If the battery pack or the optional

high-capacity battery have a problem, refer to the following:

1. Enter suspend mode by pressing the Power button.

2. Remove the battery pack and check for any

mechanical da mage. Replace the battery pack if it is damage d.

Note:

Damage to the battery pack caused by the customer is not covered by the warranty.

3. Remove the battery pack and measure the vol tage

between the battery terminals. See the following figure:

Terminal Voltage (V dc)

1 11.1 V 7 Ground (- )

4. If the voltage is less than 11.1 V dc, the battery pack

has been discharged. Recharge the battery pack. If the voltage is still less than 11.1 V dc after

recharging, replace the battery pack.

If the battery pack is extremely hot (over 50°C), replac e the battery pack an d t h e mai nb oard.

If the voltage is correct, but you still suspect a problem with the battery pack, go to “Running the Diagnos t ic s Test” on page 27.

W orkP ad z50 M ob il e C om p ani on 11

Checking Operational Charging:

batter y charging time wh eth er th e s ystem is fully op erational or not. To check the battery charging, use a discharged battery pack or a battery pack that has less than 50% of total power remaining.

Turn on the WorkPad z50 whil e t h e AC Ad apter is connect ed to the syst em. Th e Ext er n al P ow er /Charge Status LE D w il l change to amber while the battery is charging. When the

battery is fully charged (after about 1 – 2.5 hrs., depending on the battery’s initial charge) the battery terminal voltage should be around 12.6V dc. If the voltage is far less, or has not incr eas ed f r om t h e init ial voltage, then repeat th e procedure with another discharged battery pack. If this brings the same result, then suspect a mainboard failure.

There is no difference in

Optional Dry Cell Batter y Checkout: If the optional Dry

Cell Kit (dry cell battery pa ck) has a problem, refer to the following:

1. Enter suspend mode by pressing the Power button.

2. Remove the dry cell battery pack and measure the

voltage between the battery terminals. See the following figure:

Terminal Voltage (V dc)

1 8.8 – 12.8 V 7 Ground (- )

3. If the voltage is less than 8.8 V dc, the dry cell battery

pack has been discharged. Replace the dry cells. If the dry cell battery pack is extrem ely ho t, it must be

replaced.

12 IBM WorkPad z50, Mobile Companion 12

Backup Battery Checkout (Nonrechargeable)

If removing all power sources except for the backu p battery results in the system being reset, suspect a problem with the backup batteries. Refer to the following:

1. Enter suspend mode by pressing the Power button.

2. Remove the AAA batteries and measure the voltage

between the battery terminals. The voltage should be

1.1–1.6 V dc pe r battery.

•

If the voltage is correct, replace the mainboard.

•

If the voltage is less than 1.1 V dc per battery, then

the batteries have been discharged. Replace the batteries.

•

If the backup battery discharges quickly after

replacement, replace the mainboard.

Note:

Make sure either the battery pack is installed or the AC Adapter is connected. If the backup batter i es ar e r em ov ed an d n o ot h er power sourc e is avai l ab le (AC Adapter or battery pack) , the syst em is res et , an d al l t h e stored data is lost.

The Battery Calibration Application

The

Battery Calibration

ensure that it charges to its full capacity. You must first connect th e AC Adapter bef ore you us e t h e Bat t er y Calibr ati on application. Cl ic k Start, Programs, WorkPad. Click the Battery Calibration icon to open the "Battery Calibr ati on" w in d ow :

Press the Start button to begin the program. You will see the following dialog window:

application tests the battery to

Note: If the AC Adapter is not connected when you

start th e Battery Calibr at i on ap pl ication, you wi ll see a dialog window prompting you to connect it before you continue.

W orkP ad z50 M ob il e C om p ani on 13

Press OK to close the message window, then click Start to begin the calibration. You will see the following dialog window:

Press OK to close thi s dialog window. The Batt er y C alib ration application will charge the Li-ion

battery to its full capacity. When the battery reaches full capacity, the Batter y Cal ibration application wil l all ow t h e battery to fully discharge. When the battery is fully dischar g ed, the applic ation will charg e the b attery again. When the battery has been c h ar g ed to 2% of its capacit y, the Battery Calibration application will stop.

Note: During the battery calibration process, the AC

Adapter mus t b e c onn ected at all times. To reduce the time it takes to discharge the batter y, inc r ease the LCD pan el brightness to the maxi mu m level and turn off the automatic backl ight control in the Control Panel. It takes up to 12 hours to calibrate the standard battery pa ck. The high-capacity battery pack needs to go through the calibration procedure

twice.

ROM Card Checkout

If you suspect the ROM card ha s a problem, refer to the following:

1. Remove all power sources (AC power, battery pack,

and ba ckup batte ry).

2. Reinstall the ROM card.

3. Connect to a power source. If the problem persists,

replace th e RO M card.

14 IBM WorkPad z50, Mobile Companion 14

TrackPoint Checkout

The TrackPoint adjusts t h e poi nter sensor aut om at ically. During this process, the pointer moves on the screen automatically for a short time. This self-acting pointer movement can occur wh en a slig ht, steady press ure is applied to the TrackPoint pointer. You must readjust it if the temper at ur e has exceeded its n orm al temperat ur e r ang e. This symptom does not indica te a hardware problem. No servic e act i ons ar e n ec essary if the point er m ovement stops in a short per i od of time.

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

1. Go to the diagnostic menu (see “Running the

Diagnos t ic s Test” on page 27).

2. Select TrackPoint and run the diagnostics tests.

3. Verify that the item is selected.

4. Move to another item with the pointing stick.

5. Press the pointing stick (press-to-select) and verify

that the item is selected.

6. Verif y that both buttons wor k c orr ect ly.

If the click buttons do not work, replace the mainboard. If the pointing stick does not work, do the following actions one at a time to correct the problem. Do not replace a no n def ecti ve FRU.

•

Reseat the TrackPoint cable.

•

Replace the keyboard .

•

Replace the mainboard.

Cradle Checkout

Use the f oll owing procedure to isolate a prob l em wit h th e cradle. The cradl e at t ac h es t o the s yst em exp ansion connector at the bottom of the WorkPad z50.

1. Enter suspend mode.

2. Remove the failing device from the cradle.

3. Unplug the AC Adapter from the cradle, if attached.

4. Remove the cradle from the WorkPad z50.

5. Reco nnect the failing device directly to the WorkPad

z50. (If anot her device is already connec ted to the Wo rkPad z50, remove it first.)

6. If the failing device works properly, replace the cradle.

External Monitor S e lf-Test

If a monitor problem occurs, use the following instructions to correct the problem:

1. Test the external monit or and c abl e on another

system to make sure they are working correctly.

2. Connect t h e m onit or t o the WorkPad z50.

3. Go to the diagnostic menu (see “Running the

Diagnos t ic s Test” on page 27) and s elec t Display.

4. If the external monitor does not display correctly,

change the mainboard.

W orkP ad z50 M ob il e C om p ani on 15

16 IBM WorkPad z50, Mobile Companion 16

Installing the ROM/DRAM Card

This section describes how to install the ROM card or the optional DRAM card to the WorkPad z50.

Note: When you remove the ROM/ DRAM card, you will lose all stored data. Before you remove the ROM/DRAM card, be sure to bac k up all data and applic ati ons in t h e base memory.

Caution: Before removing or inserting the ROM/DRAM card, all power sources (AC power, the main battery pack, and the backu p batteries) must be removed.

Follow th ese instructi ons when inserting t h e RO M/ DR A M card:

1. Place the WorkPad z50 into suspend mode and disconnect AC power.

2. Turn the WorkPad z50 upside down.

3. Remove th e m ain b attery and rem ov e the backup batteries.

4. Unscrew the single (captive) screw that secures the ROM/DRAM card compartment cover to the chassis. Remove the cover.

ROM card

DRAM card

Unscrew the screw that secures the ROM/DRAM card cover to the chassis and remove the ROM/DRAM card cover.

5. Locate th e RO M/ DR AM card Slot.

6. Find the notch on the side of the card.

W orkP ad z50 M ob il e C om p ani on 17

7. With the notched end of the card toward the right side of the sock et, insert the car d at an an gl e of approximately 20 degrees into the socket; press it in firmly as shown (1). Gently pivot the card until it snaps into plac e (2) .

Attention

To avoid d am agi ng t h e ROM/D RAM card, d o not touch its contact edg e.

8. Ensure that the ROM/D RAM card is securely inserted in the slot.

9. Replace the ROM/DRAM card cover over the memory slot, aligning the back side of the cover first; then tighten the screw.

10. Attach the main battery and insert t h e backup batteries.

11. Turn the WorkPad z50 top side up. Connect the AC Adapter an d c abl es; t h en tur n on th e WorkPad z50.

Attention

Handling a Screwdriver

•

Use a screwdriver that fits the screw.

•

Use the screwdriver perpendicular to the head of the

screw.

Handle t h e scr ew dr iver properl y; otherwise, you mi gh t damage the screw.

Removing the ROM/DRAM Card

Note: Before removing the ROM/DRAM card, back up all data and ap plications in th e b as e mem ory. All data and installed applications will be lost by removing the ROM/DRAM card. The ROM needs to be reinstalled before starting the POST or running Windows CE.

Caution: Before removing the ROM/DRAM card, all power sources (AC power, the main battery pack, and the backup batteries) must be removed.

Follow these instructions when removing the ROM/DRAM card:

1. Turn off the WorkPad z50.

2. Disconnect AC power.

3. Turn the WorkPad z50 upside down.

4. Remove th e m ain b attery and rem ov e the backup batteries.

18 IBM WorkPad z50, Mobile Companion 18

5. Unscrew the single (captive) screw that secures the ROM/DRAM card compartment cover to the chassis. Remove the cover.

6. Using your f ing ers or a sm all sc rewdriver, pr ess ou t the two latches on the sides of the card away from the slots. The ROM/DRAM card should pop out slightly

Removing the DRAM and ROM Cards

DRAM Card

ROM Card

Pull the tabs in the direct ion of the arrows to re lease th e cards.

7. Gently pull out the card.

8. Replace the ROM/DRAM card cover over the memory slot, aligning the back side of the cover first; then tighten the screw.

9. Attach the main battery and inse rt the backup batteries.

10. Turn the WorkPad z50 top side up. Connect the AC Adapter an d c abl es; t h en tur n on th e WorkPad z50.

Brightness/Contrast Buttons Checkout

If you suspect a problem with the brightness/contrast buttons do the following acti ons on e at a ti m e to c orr ec t th e pr ob l em. Do not repla ce a nonde fective FRU:

•

Reseat the inverter cables and connectors to the

mainboard and the LCD panel.

•

Replace the inverter card

•

Replace the mainboard

W orkP ad z50 M ob il e C om p ani on 19

Power Management Features

The power management features are designed to save as much electricity as possible by putting components into a low-power consumption mode as often as possible. This

low-power mode is referred to as “suspend” mode .

Full Power Mode

The WorkPad z50 oper ates in Ful l power mode when pow er management is disabled and the AC Adapter is connected.

Suspend Mode

In suspend mode, the system is powered off except for the system DRAM. The WorkPad z50 en ters suspend mode when the system remains idle for a specified amount of time or under one of the following conditions:

•

The Power button is pressed.

•

The LCD panel is closed.

•

A Windows CE power ma nagement time-out occurs.

•

The Windows CE Suspend icon is clicked.

•

The battery release lock is released.

•

The remaining battery capacity of the battery pack is

very low.

•

A notification event set in the “Alarms” window of the

World Clock applicati on in th e C ont rol Panel occurs .

Attention

The syst em will not enter suspend mode aft er an idl e time -out under the following condit ions: The serial port is connected to another system running Windows C E s er vices. The WorkPad z50 is conn ected to a networ k through the PCMCIA LAN card.

The system will resume to full power mode under one of the following co nditions:

•

The Power button is pressed while in suspend mode.

•

An application launching key is pressed.

•

The LCD panel is op en ed.

•

An internal fax/modem ring-in occurs.

•

The Microph on e button is push ed.

•

The Notification button is pushed when the

notification LED blinks.

•

A built-in data/fax modem ring occurs.

•

The serial port is connected to another system for

transmi tt i ng and r eceiving data.

20 IBM WorkPad z50, Mobile Companion 20

Sympto m-to-FRU Index

The symp tom-to-FRU Index lists th e s ymptoms and err or s and the possible causes. The most likely cause is listed first.

Note: Perform t he FR U replacement or actions in the

sequence shown in the “FRU/Action” columns. If a FRU replacement did not solve the problem, put the o riginal part back in the WorkPad z5 0. Do not replace a nondefective FRU.

This index can also help you determine the next possible FRUs to be replaced when servicing the WorkPad z50.

Numeric er r or c od es sh ow th e er r ors d etec ted in system operation. In the followi ng er r or c od es, 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 26.

Note: For IBM devices not supporte d by diag nostic

code s in WorkPad computers, see the manua l for that device.

Numeric E rro r C o d es

Symptom / Error FRU / Action in Sequence

1XX

101 IR error 101 IR error 2XX

201 checksum error

202 DRAM test error (on

board)

203 DRAM test error

(DRAM module)

204 VRAM test error 201 ROM checksum error

202 DRAM test error (on

board DRAM) 203 DRAM test error (DRAM

module)

204 VRAM test error 3XX

301 Keyboard error 301 Keyboard error

4XX

Mainboard

1. Reinstall ROM card

2. ROM card

3. Mainboard

Mainboard

1. Reinstall DRAM module

2. DRAM module

3. Mainboard

Mainboard

1. Reinstall keyboard

2. Keyboard

3. Mainboard

W orkP ad z50 M ob il e C om p ani on 21

401 LED board error

Symptom / Error FRU / Action in Sequence

401 LED board error

5XX

501 Battery error 501 Battery error

6XX

601 Audio playback error

602 Audio recording error 601 Audio playback error

602 Audio recording error

7XX

701 Display error 701 Display error

8XX

801 Serial port test error 801 Serial port error

9XX

901 PC card/CF test error 901 PC card/CF test error 86XX

8601 Mouse test error 8601 Mouse test error

1. LED board

2. Mainboard

1. Battery

2. Mainboard

1. Speaker

2. Mainboard

1. Microphone

2. Mainboard

1. LCD panel

2. Mainboard

1. Serial cable

2. Mainboard

Mainboard

22 IBM WorkPad z50, Mobile Companion 22

Function-Related Symptoms

CTION IN SEQUENCE

Symptom / Error

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

FRU / A

1. Go to “Suspend Mode”

on page 20, and c heck that the Work Pad z50 can enter suspend mode.

2. LCD panel

3. Mainboard

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

The system hangs intermittently.

Go to “Memory Checkout” on page 8.

Go to “Intermittent Problems” on page 26.

Indicator-Related Symptoms

Symptom / Error FRU / Action in Sequence

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

The external/power status LED indicator blinks from green to amber.

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

Mainboard

1. Check that a correct battery is installed.

2. Battery pack

3. Mainboard

1. Battery pack

2. Mainboard

Infrared-Related Symptoms

Symptom / Error FRU / Action in Sequence

Unable to communicate using the Infrared (IR) Port.

W orkP ad z50 M ob il e C om p ani on 23

1. Make sure the setup for the IR is correct. Use the WorkPad z50 Configuration utility.

2. Make sure there are no fluorescent lights near the WorkPad z50. The WorkPad z50 may receive optical noise from the fluorescent light.

3. Run the advanced

diagnostic test. If an error occurs, replace the parts shown by the FRU code.

Keyboard- or TrackPoint-Related Symptoms

Symptom / Error FRU / Action in Sequence

The keyboard (one or more keys) does not work.

The TrackPoint does not work.

The pointer moves automatically or does not work corre ctly.

1. On the Windows Taskbar, check that Caps Lock or Num Lock are not enabled.

2. Reseat the keyboard cable on the mainboard.

3. Keyboard

4. Mainboard

1. Check the “TrackPoint” settings in the C ontrol Panel.

2. Reseat the keyboard cable on the mainboard.

3. Go to “TrackPoint

Checkout” on page15.

4. Keyboard

5. Mainboard

See “TrackPoint Checkout” on page 15.

LCD-Re lated Symp toms

Symptom / Error FRU / Action in Sequence

LCD backlight not working. LCD too dark. LCD brightness cannot be

adjusted. LCD contrast cannot be

adjusted.

LCD screen unreadable. Non-readable characters. Screen abnormal. Wrong color displayed.

1. Open the “Display Properties” window in the Control Panel. Check that the auto dim setting is not enabled under the “Backlight” tab.

2. Reseat the LCD cable and connectors.

3. LCD assembly

4. Inverter assembly

5. Mainboard

1. Reseat the LCD cable and connectors.

2. LCD assembly

3. Inverter assembly

4. Mainboard

LCD has extra horizontal or vertical lines displayed.

LCD lid is loose.

LCD assembly

1. Hinge screws

2. Hinge group

24 IBM WorkPad z50, Mobile Companion 24

Periph era l Devic e R e lated Symp toms

Symptom / Error FRU / Action in Sequence

The external monitor does not work correctly.

Serial port device problems.

1. Check that the external monitor is enabled in the Rapid Access utility.

2. Check that the external monitor can display at 640x480 and 800x600, @ 75Hz refresh rate.

3. Connect the external

monitor to another PC. If the monitor works fine, replace the mainboard. If not, replace the external monitor.

1. Run serial port wrap test.

2. Device

3. Mainboard

4. Device cable

Note: The serial port and the infrared port can not be used at the same time.

Power-R e lated Symptoms

Symptom / Error FRU / Action in Sequence

System enters suspend during operation.

1. Go to “Power Systems Checkout” on page 9.

2. Battery pack

3. Mainboard

4. Check the power outlet

Other Symp toms

Symptom / Error FRU / Action in Sequence

Errors occur only when the cradle is used.

PC Card slot pin is damaged.

Note: If you cann ot find a symptom or an error in this list

and the problem remains, see “Undetermined Problems”.

W orkP ad z50 M ob il e C om p ani on 25

See “Cradle Checkout” on page 15.

PC Card slots assembly.

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 anal yz i ng t h e int ermittent pr obl em , d o the following:

1. Run the diagnostic test for the mainboard in loop

mode.

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 exi s t.

Undetermined Problems

You are here because the diagnostic tests did not identify which adap ter or device f ail ed, ins talled devices are incorrect, a short circuit is suspected, or the system is inoper at i ve. Follow these proc ed ures to isolate th e f aili n g FRU (do not isolate nondefective FRUs).

Verif y that al l at t ac h ed d evices are supp orted by the W orkP ad z50.

Verify that the power supply being used at the time of the

failure is operating correctly. (See “Power Systems Checkout” on page 9.)

1. Enter suspend mode.

2. Visually check them for damage. If any problems are

found, replace the FRU.

3. Remove or dis connect all of the following d evices:

a. Non-IBM devices b. Devices at t ac h ed t o th e cradle c. External devices d. Battery pack e. DRAM f. PC Cards g. Compact Flash Cards

4. Turn on th e W ork P ad z50.

5. Determ in e if the problem has ch anged.

6. If the problem does not reoccur, reconnect the

removed de vices one at a time unt il you f ind the failing FRU.

7. If the problem remains, replace the following FRUs

one at a time. Do not replace a nonde fective FRU. a. Mainb oard b. LCD ass em bl y

26 IBM WorkPad z50, Mobile Companion 26

Running the Diagnostics

The follow i ng table lists the sp eci al t ools used in the diagnostics:

Tool Name FRU P/N

Serial wrap connect or 05K 28 46 PCMCIA wr ap c ar d 35G4703 Compact F l as h wr ap c onv er t er 05K2845

Use eith er the TrackPoi nt or th e cur sor move keys t o int eract with the tests. The Enter key works the same a s selecting the OK icon to reply OK.

1. Click Start, then Run. In the "Run” dialog window

Open box, type “\Windows\ibmd iag.ex e”. Click OK.

The basic diagnostic menu appears.

2. Start the Advanced Diagnostic test by pressi ng

Ctrl+A on the basic diagnostic menu. The Serial and PC Card devices will appear on th e diagnostic m enu.

3. Click on a device to run the test. The test progress

window appears. A confirmation message box will appear after exiting each test: click Yes if the test ends wit h out an y er rors.

PC Card Slot Test

Insert the PCMCIA wrap card into the PC card slot for the PCMCIA test: insert the CompactFlash wrap converter into the CompactFlash slot fo r the CompactFlash slot test. Refer to the previous section, “Running the Diagnostics” to run the tests.

W orkP ad z50 M ob il e C om p ani on 27

UUID

A UUID (universal unique ID) is uniquely assigned to each system board for system management purposes. The UUID is stored on the EEPROM on the board.

Related Service Procedures

This sect i on provides inf or m ati on ab out the followi ng :

•

“Status Ind icators and Cont r ol B utt ons ”

•

“Applicat i on L au nc hing Key Assign m ent s ” on page 29

Status Indicators and Control Buttons

The system status indicators show the current WorkPad z50 status in dif ferent colors (green and amb er) . The c ont r ol buttons —1. shown in the illustration below.

Notification

, 3.

Microphone

, and 5.

Power

—are

Indicator Color Meaning

Notification Amber

External

5. Power/Charge Status (this LED is on whenever the AC Adapter is connected)

To recor d a message, push th e Mic rophone button; the Voice Recorder window will appear. Click the Record button to start recording; click the Stop button to stop recording. There is no record LED.

28 IBM WorkPad z50, Mobile Companion 28

Green The battery is fully

Ambe r Battery charging

The syst em is rec eiving a transfer call. Push the Notification butt on to st op the transfer.

charged or the rechargeable battery pack is absent (see “Power Systems Checkout” on page 9).

(see “Power Systems Checkout” on page 9)

Application Launching Key Assignments

The applications keys are programmed to launch pres et softwar e ap pl ications. The following tabl e sh ows t h e application keys and their corresponding functions:

Key Description

A1 Launch or switch t o th e W ind ows CE Inb ox A2

A3 Launch or switch t o Cal en dar A4 Launch or switch t o Con tacts A5 Launch or switch t o T as ks A6

A7 Launch Pocket Excel or switch to next Pocket

A8 Launch Pocket PowerPoint or switch to next

A10 Launc h or switch to Calc ulator A11 Launc h or switch to Voice Recorder A12 Launch or switch to Rapid Access

Launch Windows Explorer or switch to next Explorer Window

Launch Poc ket Word or switc h t o n ext P oc k et Word window

Excel window

Pocket PowerPoint window Launch Pocket Access or switch to next

Pocket Access window

To view th e app lication keys an d t h eir c orr es ponding functions, click on the Launchi ng Keys icon in the Control

Panel to bring up the “Launching Keys Properties” window.

W orkP ad z50 M ob il e C om p ani on 29

Removing and Replacing Defective FRUs

This sect i on provides inf or m ati on on r em ovi n g and replacing FRUs.

•

Do not damage any part. Only certified and trained

personnel should service the WorkPad z50 Mobile Companion.

•

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 ar e marked in numeric or d er, in squ are callouts, to show the correct sequence of removal.

•

When 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 repl ac em ent.

•

When replacing a FRU, use the correct screw size as

shown in the procedures.

Safety Notice 1: Translati on on pag e viii

Befor e the WorkPad z50 is pow er ed -on after FRU replacement, make sure all screws, springs, or other small p arts are in place and are n ot left loose inside th e WorkPad z50. Verify this by shaking the WorkPad z50 and listening for rattling sounds. Metallic parts or metal flakes can cause electrical shorts.

Safety Notice 2: Translati on on pag e ix

The battery pack contains small amounts of harmful substances. Do not disassemble it, throw it into fire or water, or short-circuit it. Dispose of the battery pack or backup battery as required by local ordinances or regulations. Use only the battery in the appropriate parts listing when replacing the battery pack. Use of an incorrec t b att er y c an res ult in ignition or exp l os i on of th e battery.

Safety No ti ce 6: Tr a nslation on pag e xi

Before remov ing any FRU, place the WorkPad z50 in to suspend mode, unplug al l p ow er cords from el ectr ical outlets, then disconnect any interconnecting cables and remove th e battery pack and bac kup batteri es.

CAUTION: If all power sources are removed from the WorkPad z50, all data and applica tio ns will be lo st. If the proble m is considered a software problem stored on DRAM memory, appr oa ch the probl em from that standpoint before removing all power sources.

Attention: The mainboard is sensitive to, and can be

damag ed b y, el ectrostatic dis c harge.

30 IBM WorkPad z50, Mobile Companion 30

An electrostatic discharge (ESD) str ap (P/N 6405959) m ust be used to est ab lis h per sonal groun di ng.

W orkP ad z50 M ob il e C om p ani on 31

Important Noti c e

The WorkPad z50 Mobile Compani on uses special nyl on coated screws with th e foll ow i ng c h ar ac t er is tic s :

•

They maintain tight connections.

•

They do not easi ly come loos e, even w ith shock or

vibration.

But:

•

They need add itional forc e to tig ht en.

•

They shoul d be used only onc e.

Do the foll owing when you service this machine:

•

Keep the screw kit (P/N 05K5941) in your tool bag.

•

Always use new screws.

•

Use a torque screwdriver.

Screw Information: The follow in g t yp es of sc r ews are used in this machine. Use the correct screw in the Screw Kit (P/N 05K5941) when replacing any FRUs.

Screw

Screw Type

No.

Head

3 Flat

M2.5

5 Flat Silver 5.0

Color Length

Black 4.0/6.0

(mm)

7 Flat

32 IBM WorkPad z50, Mobile Companion 32

Pan

M2.0

M2.5

Silver 4.0/6.0

Black 8.0

Unplugging and Plugging Flexible Cables:

Two types of c abl e an d c onn ec tors are used in th e W or kP ad z50. Some c onnectors have a clasp, whic h m us t be unlocked before removing the cable. Unlock the conne ctor by pullin g up th e cl as p w ith your fingern ail or a sm all flattipped screwdriver. Then pull out the cable from the connector. Refer to the following illustrations:

W orkP ad z50 M ob il e C om p ani on 33

Removal re fe rence

The chart below shows the order for removing FRUs. When a FRU has been removed, follow the arrows to the FRU (or FRUs) that can be removed ne xt.

1010 Backup Batteries

1020 ROM/DRAM Card

1030 Battery Pack

1040 Keyb oard Assembly

1050 Bottom Cover

1060 Mai nb oard

1070 LCD B ez el

1080 LCD Unit

1090 Inverter Card and LCD Panel

1110 FPC As s em bl y

1120 Speak er

1130 Microphone

1150 PC Card Slot Assembly

1160 RJ-11 Assembly

1170 Hardware Button Board

1180 Top Cover

34 IBM WorkPad z50, Mobile Companion 34

1010 Backup Batteries

1.Turn the WorkPad z50 upside down.

Step Size (Quantity) Color Torque Length

Coin screw M2.5 (1)

Note: You can loosen the captive screw in step 2, but

cannot remove it from the backup battery cover.

Black 3 kgcm 4.0 mm

W orkP ad z50 M ob il e C om p ani on 35

1020 ROM/DRAM Card

•

Backup Batteries (1010)

•

Battery Pack (1030)

Attention

Remove al l power sourc es from the WorkPad z5 0 before replacing the ROM/DRAM card.

Turn the WorkPad z50 upside down.

DRAM Card

ROM Card

Step Size (Quantity) Color Torque Length

2 M2.5 (1) Black 3 kgcm 4.0 mm

Note: You can loosen the captive screw in step 2, but

cannot remove it from the ROM/DRAM card cover.

36 IBM WorkPad z50, Mobile Companion 36

W orkP ad z50 M ob il e C om p ani on 37

1030 Battery Pack

Turn the WorkPad z50 upside down.

Note

At step 3 you must push and hold the battery release lock as you slide the lock in the direction indicated by the arrow.

38 IBM WorkPad z50, Mobile Companion 38

1040 Keyboard Assembly

•

Backup Batteries (1010)

•

Battery Pack (1030)

Attention

Remove al l power sourc es from the WorkPad z5 0 before removi ng t h e k eyb oard assembl y.

Turn the WorkPad z50 upside down.

Step Size (Quantity) Color Torque Length

2 M2.5 (5) Black 3 kgcm 6.0 mm

Note: Make sure you use the correct screw and tighten

the screw to the torque specified.

Turn th e WorkPad z50 top si d e up and open the LCD

3. panel.

W orkP ad z50 M ob il e C om p ani on 39

1050 Bottom Cover

•

Backup Batteries (1010)

•

Battery Pack (1030)

•

Keyboard Assembly (1040)

40 IBM WorkPad z50, Mobile Companion 40

Attention!

Attention

Be careful when assembling the bottom cover and the battery shield not to pinch the cables.

Step Size (Quantity) Color Torque Length

3 M2.5 (4) Black 3 kgcm 6.0 mm 4 M2.0 (2) Silver 3 kgcm 4.0 mm 5 Hex (2) Silver 3 kgcm 5.0 mm 6 M2.5 (2) Black 3 kgcm 8.0 mm

Note: Make sure you use the correct screw and tighten

the screw to the torque specified.

W orkP ad z50 M ob il e C om p ani on 41

1060 Mainboard

•

Backup Batteries (1010)

•

Battery Pack (1030)

•

Keyboard Assembly (1040)

•

Bottom Cover (1050)

Step Size (Quantity) Color Torque Length

6 M2.0 (3) N/A 3 kgcm 6.0 mm

Note: Make sure you use the correct screw and tighten

the screw to the torque specified.

42 IBM WorkPad z50, Mobile Companion 42

1070 LCD Bezel

Attention

Be careful when lifting the bezel cover loose. The plastic tabs that h old it s ec ur ely to the LCD unit ar e eas il y damaged.

Remove the screw covers

Step Size (Quantity) Color Torque Length

2 M2.5 (2) Black 3 kgcm 4.0 mm

Note: Make sure you use the correct screw and tighten

the screw to the torque specified.

W orkP ad z50 M ob il e C om p ani on 43

1080 LCD Unit

•

Backup Batteries (1010)

•

Battery Pack (1030)

•

Keyboard Assembly (1040)

•

Bottom Cover (1050)

•

LCD Bezel (1070)

URN THE WORKPAD Z50 OVER.

Remove the LCD unit.

Step Size (Quantity) Color Torque Length

3 M2.5 (4) Black 3 kgcm 4.0 mm

Note: Make sure you use the correct screw and tighten

the screw to the torque specified.

44 IBM WorkPad z50, Mobile Companion 44

1090 Inverter Card and LCD Panel

•

Backup Batteries (1010)

•

Battery Pack (1030)

•

Keyboard Assembly (1040)

•

Bottom Cover (1050)

•

LCD Bezel (1070)

W orkP ad z50 M ob il e C om p ani on 45

Step Size (Quantity) Color Torque Length

1 M2.5 (4) N/A 3 kgcm 4.0 mm 5 Hex (2) N/A 3 kgcm 5.0 mm

Note: Make sure you use the correct screw and tighten

the screw to the torque specified.

1110 FPC Assembly

•

Backup Batteries (1010)

•

Battery Pack (1030)

•

Keyboard Assembly (1040)

•

Bottom Cover (1050)

•

LCD Bezel (1070)

•

Inverter Card and LCD Panel (1090)

46 IBM WorkPad z50, Mobile Companion 46

1120 Speaker

•

Backup Batteries (1010)

•

Battery Pack (1030)

•

Keyboard Assembly (1040)

•

Bottom Cover (1050)

1130 Microphone

•

Backup Batteries (1010)

•

Battery Pack (1030)

•

Keyboard Assembly (1040)

•

Bottom Cover (1050)

W orkP ad z50 M ob il e C om p ani on 47

1140 Audio Ports

The ear jack and sp eak er ou t por ts are all built into t h e mainboard. If any of these devices has malfunctioned, you must repl ac e t h e mai nb oard.

1150 PC Card Slot Assembly

•

Backup Batteries (1010)

•

Battery Pack (1030)

•

Keyboard Assembly (1040)

•

Bottom Cover (1050)

•

Mainboard (1060)

Step Size (Quantity) Color Torque Length

1 M2.0 (2) N/A 3 kgcm 4.0 mm

48 IBM WorkPad z50, Mobile Companion 48

Note: Make sure you use the correct screw and tighten the screw to the torque specified.

W orkP ad z50 M ob il e C om p ani on 49

1160 RJ-11 Assembly

•

Backup Batteries (1010)

•

Battery Pack (1030)

•

Keyboard Assembly (1040)

•

Bottom Cover (1050)

50 IBM WorkPad z50, Mobile Companion 50

1170 Hardware Button Board

•

Backup Batteries (1010)

•

Battery Pack (1030)

•

Keyboard Assembly (1040)

•

Bottom Cover (1050)

Step Size (Quantity) Color Torque Length

1 M2.0 (1) N/A 3 kgcm 6.0 mm

Note: Make sure you use the correct screw and tighten

the screw to the torque specified.

W orkP ad z50 M ob il e C om p ani on 51

1180 Top Cover

•

Backup Batteries (1010)

•

Battery Pack (1030)

•

Keyboard Assembly (1040)

•

Bottom Cover (1050)

•

Mainboard (1060)

•

LCD Bezel (1070)

•

LCD Unit (1080)

•

Microphone (1130)

•

PC Card Slot Assembly (1150)

•

RJ-11 Assembly (1160)

•

Hardware Button Board (1170)

Step Size (Quantity) Color Torque Length

1 M2.5 (4) Black 3 kgcm 4.0 mm

Note: Make sure you use the correct screw and tighten

the screw to the torque specified.

52 IBM WorkPad z50, Mobile Companion 52

Locations Front Right View

LCD cover release lat ch

1. LCD display

2. Brightness contr ol buttons

3. Contrast control buttons

5. Notification button

6. Notification LED Microphone button

8. External Power/Charge status LED Power button

TrackPoint

10.

TrackPoint butt ons

11.

Keyboard

12.

Built-in microphone

13.

W orkP ad z50 M ob il e C om p ani on 53

Left Vie w

RJ-11 connector

External earphone jack

Microphone jack

PC card eject button

PC card slot

Right View

External monitor p ort

1. CompactF lash slot

2. CompactFlash eject button

3. Infrared data port

4. Serial port

54 IBM WorkPad z50, Mobile Companion 54

Rear View

Power jack

1. Battery release lock

2. Battery release latch

3. Lock keyhole

Bottom View

Back up b at t ery compartm ent

1. Built-in monopho nic speaker

2. OS ROM an d DRAM compar t m ent

3. Reset switch hole

4. Cradle connector

5. Battery pack

W orkP ad z50 M ob il e C om p ani on 55

System Unit Parts Listing

8 9

56 IBM WorkPad z50, Mobile Companion 56

System Unit FRU List

No. FRU PART DESCRIPTION FRU ELEMENTS FRU P/N QTY CRU

1 POINTING STICK CAP 84G6536 1

K/B ASS’Y (USA) 02K4862 1 K/B ASS’Y (CAN-FRE) 02K4867 1 K/B ASS’Y (FRE) 02K4865 1

K/B ASS’Y (JAP) 02K4863 1 K/B ASS’Y (UK) 02K4864 1 K/B ASS’Y (GERMANY) 02K4866 1 TOP COVER ASS’Y 05K5936 1

MAIN BOARD ASS’Y 10L1217 1

MAIN BOARD ASS’Y-EU 30L2168 1 ROM CARD (USA) 10L1218 1 ROM CARD (JAP) 10L1256 1

ROM CARD (FRE) 10L1258 1 ROM CARD (GER) 10L1257 1 BOTTOM COVER ASS’Y U/C/J 05K5938 1 BOTTOM COVER ASS’Y EMEA 27L6431 1

BATTERY PACK 02K6565 1

BACKUP BATTERY 02K6566 1

BOTTOM DOOR GROUP 05K5939 1

PC CARD SLOT ASS’Y 05K5937 1

SEE MISC PART GROUP 1

TOP COVER 1 LED LENS 2 POWER BTN 1 TOUCH BTN (R) 1 TOUCH BTN (L) 1 INDICATOR BTN 2 BATTERY LATCH 1 BATTERY SPRING 1 INDICATOR SPRING 2 TOP ESD MYLAR 1 BATT-REL LATCH 1 BATT-REL BRACKET 1 CUSHION PLATE 1 K/B SEAL SUPPORT 1 K/B WATERPROOF

TAPE EMI SPONGE

(740031*5m/m) H/W BTN BOARD ASS’Y 1

BOTTOM COVER 1 SMART CARD DOOR 1 BASE ESD MYLAR 1 DOCKING SHUTTER (R) 1 DOCKING SHUTTER (L) 1 VGA DOOR-P 1 SERIAL DOOR-P 1 IR LENS 1 BACKUP BATT TERMINAL 1 RATING LABEL 1 RUBBER FOOT 2

EXTEND DOOR 1 BACKUP BATTERY DOOR 1 DUMMY PC CARD

ASS’Y DUMMY CF CARD 1

√

√ √

√

WorkPad z50 Mobile Companion (2608-1Ax) 57

LCD Unit Parts List

No. FRU PART DESCRIPTION FRU ELEMENTS FRU P/N QTY CRU

LCD BEZEL ASS’Y 05K5934 1

2 LCD MODULE ASS’Y 8.2" DSTN 05K9399 1

INVERTER ASS’Y 10L1216 1

LCD COVER ASS’Y 05K5933 1

HINGE GROUP 05K5935 1

FPC AND WIRE GROUP 05K2822 1

LCD BEZEL 1 LCD BUTTON 1 SCREW CAP 2

INV. MODULE (AMB) 1 INVERTER MYLAR

W/COPPER TAPE

LCD COVER 1 LCD SHIELD 1 LCD SHIELD TAPE 1 COVER LOGO

(WORKPAD) HOOK KNOB 1 HOOK SPRING 1 MAGNET (LCD COVER) 1 LCD MAGNET HOLDER 1

HINGE (R) 1 HINGE (L) 1 HINGE BRACKET (R) 1 HINGE BRACKET (L) 1

LCD FPC ASS’Y 1 FPC COVER SHEET 1 FPC HOLDER (U) 1 FPC HOLDER (L) 1 CABLE ASS’Y, IV, 8.2 1

58 IBM WorkPad z50, Mobile Companion (2608-1Ax)

Miscellaneous and Other Parts

DESCRIPTION FRU ELEMENTS QTY FRU P/N CRU MISC PART GROUP 1 1 05K5940

MISC PART GROUP 2 1 46L2666

SCREW KIT 1 05K5941

HOOK KNOB 1 HOOK SPRING 1 IR LENS 1 DOCKING SHUTTER 1 RUBBER FOOT 2 COVER SWITCH/B ASS’Y 1 H/W BTN BOARD ASS’Y 1 CABLE ASS’Y, MIC 1 CABLE ASS’Y, RJ-11 1 RJ-11 DOOR (EMEA ONLY) 1 BATT SLOT BRACKET 1 LABEL CAN HOMO,

(US/CA/JA ONLY) SPEAKER BRACKET 1 SPEAKER MYLAR 1 CABLE ASS’Y, SP 1 TAPE 3

TEMPLATE, TEXT 1 TEMPLATE, ICON 1 STICKER 1

SCREW (M2.0*3-P-NI-NYLOK) 10 SCREW (M2.0*6-P-NI-NYLOK 10 SCREW (M2.5*6-I-BNI-NYLOK) 20 SCREW (M2.5*8-1-BNI-NI-NYLOK) 10 SCREW (M2.5*4-P-BNI-NYLOK) 20 STUD 10 I/V NUT 10 SCREW CAP 10

Option Parts FRU List

ITEM DESCRIPTION QTY FRU P/N CRU MEMORY EXPANSION 32MB 1 20L0244

HIGH CAPACITY BATTERY PACK 1 02K6575 DRY CELL BATTERY CASE 1 02K6142 CRADLE 1 02K6143

Other Parts

ITEM DESCRIPTION QTY FRU P/N CRU SERIAL CABLE 1 05K2823

MODEM CABLE 1 05K2824 AC ADAPTOR (45w, 2-prong) 1 02K6560 AC ADAPTOR (45w, 3-prong) 1 02K6562

√

√ √ √ √

CRU

To find out which parts can be replaced by the customer, refer to the tables under “System Unit Parts Listing” starting on page 52. All parts marked “√” in the CRU column are considered CRU parts.

Tools

See the table of tools on page 26.

WorkPad z50 Mobile Companion (2608-1Ax) 59

Power Cord

IBM pow er cord s for a specific country are usually available only in that country:

For 2-pin power cords:

IBM Power Cord Part Number

13H5273 Japan

For 3-pin power cords:

IBM Power Cord Part Number

76H3514

76H3516 Bahamas, Barbados, Bermuda, Bolivia,

76H3518

76H3520 Denmark 76H3522 Bangladesh, Pakistan, South Afric a, Sri

76H3524 Abu Dhabi, Albania, Antigua, Bahrain,

76H3528 Liechtenstein, Switzerland 76H3530 Chile, Ethiopia, Italy, Libya 76H3532 Israel 76H3535 Korea 76H4866 Thailand

Used in These Countries CRU

√

Used in These Countries CRU

Argentina, Australia, Papua New Guinea, New Zealand, Paraguay, Uruguay

Canada, Cayman Islands, Colombia, Costa Rica, Dominican Republic, Ecuador, El Salvador, Guatemala, Guyana, Haiti, Honduras, Jamaica, Mexico, Netherlands Antilles, Nicaragua, Panama, Peru, Philippines, Saudi Arabia, Suriname, Taiwan, Trinidad (West Indies), United States of America, Venezuela

Austria, Belgium, Bulgaria, Czech Republic, Egypt, Finland, France, Germany, Greece, Hungary, Iceland, Indonesi a, Netherlands , Norway, Poland, Portugal, Romania, Slovakia, Spain, Sweden, Turkey, former Yugoslavia

√

Lanka

Brunei, Dubai, Fiji, India, Ireland, Kenya, Kuwait, Macao, Malaysia, Nigeria, Oman, People’s Republic of China (including Hong Kong), Qatar, Singapore, United Kingdom

√

√ √ √ √ √

60 IBM WorkPad z50, Mobile Companion 60

Notices

References in this publication to IBM products, programs, or serv ices do no t imply that IBM in tends to make these available in all countries in which IBM operates. Any reference to an IBM product, program, or service is not intended to state or imply that only that IBM product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any of the intellectual property rights of IBM may be used instead of the IBM product, program, or service. The evalu ati on an d verificati on of op er at i on in c onjunction wi th other pr oduc ts , except those expressl y des ignated by IB M, are the responsibility of the user.

IBM may have patents or pending patent applications covering subject matter in this document. The furnishing of this docu m ent does not give you any license to these patents. You can send license inquiries, in writing, to:

IBM Direc t or of Licensing IBM Corporation 500 Columbus Avenue Thornwood, NY 10594 U.S.A.

Trademarks

The following terms are trademarks of the IBM Corporation in the Unit ed States or other c ou ntr i es or both:

IBM W orkPad TrackPoint

Micros oft and Windows ar e trademarks or reg is tered tr adem a rks of Mic ros oft Corp orat ion.

CompactFlash is the registered trademark of Sandisk Corporation.

Other c omp any, produc t, an d s er vice names, which may be denoted by a double asterisk (**), may be trademarks or service marks of others.

W orkP ad z50 M ob il e C om p ani on 61

IBM

Part Number: 37L2095

Printed in U.S.A.

S37L-2ð95-ðð

IBM WORKPAD z50 MOBILE COMPANION Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

About This Manual

Contents

Introduction

Important Service Information

FRU Replacement Strategy

Safety Notices (Multi-lingual Translations)

Safety I n fo rmation

General Safety

Electrical Safety

Safety Inspection Guide

Handling Electrostatic Discharge-Sensitive Devices

Grounding Requirements

Screw Tightening Information

Product Overview

Checkout Guide

Audio Checkout

Keyboard Checkout

Memory Checkout

Modem Checkout

Power Systems Checkout

ROM Card Checkout

TrackPoint Checkout

Cradle Checkout

External Monitor S e lf-Test

Installing the ROM/DRAM Card

Removing the ROM/DRAM Card

Brightness/Contrast Buttons Checkout

Power Management Features

Full Power Mode

Suspend Mode

Sympto m-to-FRU Index

Numeric E rro r C o d es

Function-Related Symptoms

Indicator-Related Symptoms

Infrared-Related Symptoms

Keyboard- or TrackPoint-Related Symptoms

LCD-Re lated Symp toms

Periph era l Devic e R e lated Symp toms

Power-R e lated Symptoms

Other Symp toms

Intermittent Problems

Undetermined Problems

Running the Diagnostics

PC Card Slot Test

UUID

Related Service Procedures

Status Indicators and Control Buttons

Application Launching Key Assignments

Removing and Replacing Defective FRUs

Important Noti c e

Removal re fe rence

1010 Backup Batteries

1020 ROM/DRAM Card

1030 Battery Pack

1040 Keyboard Assembly

1050 Bottom Cover

1060 Mainboard

1070 LCD Bezel

1080 LCD Unit

1090 Inverter Card and LCD Panel

1110 FPC Assembly

1120 Speaker

1130 Microphone

1140 Audio Ports

1150 PC Card Slot Assembly

1160 RJ-11 Assembly

1170 Hardware Button Board

1180 Top Cover

Left Vie w

Right View

Rear View

Bottom View

System Unit Parts Listing

LCD Unit Parts List

Miscellaneous and Other Parts

Option Parts FRU List