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IBM Mobile Systems
S37L-2095-00
WorkPad z50 Mobile Companion (2608-1Ax) Hardware Maintenance Manual
March 1999
Note Before using this information and the product it supports, be sure to read the general information 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 do not allow disclaimer or express or implied warranties in certain transactions; therefore, this statement may not apply to you. This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the publication. IBM may make improvements or changes to the products or the programs described in this publication at any time. It is possible that this publication may contain references to, or information about, IBM products (machines and programs), programming, or services that are not announced in your country. Such references or information must not be construed to mean that IBM intends to announce such IBM products, programming, or services in your country. Requests for technical information about IBM products should be made to your IBM authorized dealer or your IBM marketing representative. © Copyright International Business Machines Corporation 1999. All rights reserved. Note to US 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. © Copyright IBM Corp. 1999 iii
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, reference, and product-specific parts information. Important 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 "Safety Information" on page xii.
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Contents
Introduction ......................................................................... vii IMPORTANT SERVICE INFORMATION VII FRU Replacement Strategy .......................................................vii SAFETY 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 Requirements ......................................................... xvi WORKPAD Z50 MOBILE COMPANION (2608) 1 READ THIS FIRST 1 SCREW TIGHTENING INFORMATION 2 PRODUCT OVERVIEW 5 CHECKOUT GUIDE 6 Audio Checkout............................................................................7 Keyboard Checkout .....................................................................8 Memory Checkout........................................................................8 Modem Checkout .........................................................................9 Power Systems Checkout.............................................................9 Backup Battery Checkout (Nonrechargeable) .........................13 The Battery Calibration Application ........................................13 ROM Card Checkout .................................................................14 TrackPoint Checkout .................................................................15 Cradle Checkout ........................................................................15 External Monitor Self-Test ........................................................15 INSTALLING THE ROM/DRAM CARD 17 Removing the ROM/DRAM Card..............................................18 Brightness/Contrast Buttons Checkout ....................................19 POWER MANAGEMENT FEATURES 20 Full Power Mode .......................................................................20 Suspend Mode ............................................................................20 SYMPTOM-TO-FRU I NDEX 21 Numeric Error Codes ................................................................21 Function-Related Symptoms......................................................23 Indicator-Related Symptoms .....................................................23 Infrared-Related Symptoms.......................................................23 Keyboard- or TrackPoint-Related Symptoms ..........................24 LCD-Related Symptoms.............................................................24 Peripheral Device Related Symptoms ......................................25 Power-Related Symptoms..........................................................25 Other Symptoms.........................................................................25 Intermittent Problems ................................................................26 Undetermined Problems............................................................26 RUNNING THE DIAGNOSTICS 27 PC Card Slot Test ......................................................................27 UUID ..........................................................................................28 RELATED SERVICE PROCEDURES 28 Status Indicators and Control Buttons .....................................28 Application Launching Key Assignments .................................29 REMOVING AND REPLACING DEFECTIVE FRUS 30 Important Notice ........................................................................32 Removal reference .....................................................................34 1010 Backup Batteries..............................................................35 1020 ROM/DRAM Card ...........................................................36 1030 Battery Pack.....................................................................38 © Copyright IBM Corp. 1999 v
Keyboard Assembly .........................................................39 Bottom Cover...................................................................40 Mainboard .......................................................................42 LCD Bezel ........................................................................43 LCD Unit..........................................................................44 Inverter Card and LCD Panel ........................................45 FPC Assembly..................................................................46 Speaker.............................................................................47 Microphone......................................................................47 Audio Ports ......................................................................48 PC Card Slot Assembly ...................................................48 RJ-11 Assembly ...............................................................50 Hardware Button Board .................................................51 Top Cover ........................................................................52 LOCATIONS 53 Front Right View........................................................................53 Left View.....................................................................................54 Right View ..................................................................................54 Rear View ...................................................................................55 Bottom View ...............................................................................55 PARTS LISTING 56 System Unit FRU List ................................................................57 LCD Unit Parts List...................................................................58 Miscellaneous and Other Parts.................................................59 Option Parts FRU List...............................................................59 Other Parts .................................................................................59 CRU ............................................................................................59 Tools ...........................................................................................59 Power Cord ................................................................................60 NOTICES 61 Trademarks ................................................................................61
1040 1050 1060 1070 1080 1090 1110 1120 1130 1140 1150 1160 1170 1180
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Introduction
Important Service Information
Important Software fixes are customer installable. Such fixes are located on the PC Company Bulletin Board Service (BBS). The direct line for modem connection is 919-5570001 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 obtaining or installing software fixes. Customers in Canada should call IBM HelpPC at 800-5653344 for assistance or down-load information. The Canadian BBS phone numbers are: Montreal Toronto Vancouver Winnipeg 515-938-3022 905-316-4255 604-664-6464 204-934-2735
FRU Replacement Strategy
Before Replacing Parts Ensure that all software fixes are installed prior to replacing any FRUs listed in this manual. Use the following strategy to prevent unnecessary FRU replacement and service expense: · · If you are instructed to replace a FRU and that does not correct the problem, reinstall the original FRU before you continue. Some computers have both a processor board and a mainboard. If you are instructed to replace either the processor board or the mainboard, and the first board that you replaced does not correct the problem, reinstall the original board, and 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 faulty FRU.
·
© Copyright IBM Corp. 1998
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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 assurezvous 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 è stata effettuata la sostituzione di una FRU, accertarsi che tutte le viti, le molle e tune le altri parti di piccole dimensioni siano nella corretta posizione e non siano sparse all'interno dell'elaboratore. Verificare ciò scuotendo l'elaboratore e prestando attenzione ad eventuali rumori; eventuali parti o pezzetti metallici possono provocare cortocircuiti pericolosi. Antes de encender el sistema despues de sustituir una FRU, compruebe que todos los tornillos, muelles y demás piezas pequeñas se encuentran en su sitio y no se encuentran sueltas dentro del sistema. Compruébelo agitando el sistema y escuchando los posibles ruidos que provocarían. Las piezas metálicas pueden causar cortocircuitos eléctricos.
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Safety Notice 2 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 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 á l'eau. Ne la mettez pas en courtcircuit. Pour la mettre au rebut, conformez-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 enthalten geringe Mengen von Nickel. Sie durfen 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.
© Copyright IBM Corp. 1998
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Safety Notice 3 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'aftichage 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 apres le lavage. Die Leuchtstoffröhre im LCD~BiIdschirm enthält 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 anschließend ein Arzt aufgesucht werden. Nel caso che caso l'LCD si dovesse rompere ed ii liquido in esso contenuto entrasse in contatto con gli occhi o le mani, lavare immediatamente le parti interessate con acqua corrente per almeno 15 minuti; poi consultare un medico se i sintomi dovessero permanere. Si la LCD se rompe y el fluido de su interior entra en contacto con sus ojos o sus manos, lave inmediatamente las áreas afectadas con agua durante 15 minutos como mínimo. Obtenga atención medica si se presenta algún síntoma del fluido despues de lavarse.
Safety Notice 4 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 protegéant 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.
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Safety Notice 5 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 0 provocare ustioni al 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.
Safety Notice 6 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 clièntele, 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.
© Copyright IBM Corp. 1998
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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. Do not attempt to lift any 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.
· · · · ·
· ·
· ·
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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 exposed electrical circuits, observe the following precautions: Ensure that another person, familiar with the power-off controls, is near you.
-
Attention: Another person must be there to switch off the power, if necessary. Use only one hand when working with powered-on electrical equipment; keep the other hand in your pocket or behind your back. Attention: There must be a complete circuit to cause electrical shock. By observing the above rule, you may prevent a current from passing through your body. When using testers, set the controls correctly and use the approved probe leads and accessories for that tester. Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as metal floor strips and machine frames.
-
-
Observe the special safety precautions when you work with very high voltages; these instructions are in the safety sections of maintenance information. Use extreme care when measuring high voltages.
© Copyright IBM Corp. 1998
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· · · ·
·
·
Regularly inspect and maintain your electrical hand tools for safe operational condition. Do not use worn or broken tools and testers. Never assume that power has been disconnected from a circuit. First, check that it has been poweredoff. Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, nongrounded power extension cables, power surges, and missing safety grounds. Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is conductive; such touching can cause personal injury and machine damage. Do not service the following parts with the power on when they are removed from their normal operating places in a machine: Power supply units Pumps Blowers and fans Motor generators and similar units. (This practice ensures correct grounding of the units.)
·
If an electrical accident occurs: Use caution; do not become a victim yourself. Switch off power. Send another person to get medical aid while first aid is being administered.
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
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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. 2. 3.
Check exterior covers for damage (loose, broken, or sharp edges). Power-off the computer. Disconnect the power cord. 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. The power cord should be the appropriate type as specified in the parts listings. Insulation must not be frayed or worn.
b. c.
4. 5. 6. 7. 8.
Remove the cover. Check for any obvious non-IBM alterations. Use good judgment as to the safety of any non-IBM alterations. 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. Check for worn, frayed, or pinched cables. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with.
© Copyright IBM Corp. 1998
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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. 2.
Use product-specific ESD procedures when they exceed the requirements noted here. 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. Approved static straps protect the user from high-operating voltages (110V). 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.
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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 computer. 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 machine and FRU part number are correct 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 have nothing to do with a hardware problem, 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 log error and run the test again. Do not replace any FRUs if log errors do not appear. Be careful not to replace a nondefective FRU.
·
·
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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 degrees after the screw 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 touches the surface of the logic 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 Multiple 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.
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Attention Pushing the WorkPad z50's Power button will power on (or resume) the system, or put the system in suspend mode: there is no power-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 memory while these power sources are removed.
What to Do First:
__ __ __ __ __ 1 2 3 4 5
The service personnel must fill in the following information in the parts exchange form or parts return form that is attached to the returned FRU: Name and phone number of service personnel Date of service Date when the part failed Date of purchase Failure symptoms, error codes appearing on the monitor, and beep symptoms Procedure index and page number in which the failing FRU was detected Failing FRU name and part number Machine type, model number, and serial number Customer's name and address
__ 6 __ 7 __ 8 __ 9
Before checking problems with the computer, determine whether the damage is covered under the warranty by referring to the following: During the warranty period, the customer may be responsible for repair costs if the computer damage was caused by misuse, accident, modification, unsuitable physical or operating environment, or improper maintenance by the customer. The following list provides some common items that are not covered under warranty and some symptoms that may indicate that the system was subjected to stress beyond normal use:
The following is not covered under warranty: · · · · · · LCD panel cracked from the application of excessive force or from being dropped. Scratched (cosmetic) parts Cracked or broken plastic parts, broken latches, broken pins, or broken connectors caused by excessive force Damage caused by liquid spilled into the system Damage caused by the improper insertion of a PC Card or the installation of an incompatible card Fuses blown by attachment of a nonsupported device
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The following symptoms might 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 than the operating system will be erased. Any password that is set for testing purposes should be disabled before returning the WorkPad z50 to the customer.
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Product Overview
Refer to the following table for an overview of the system features of the WorkPad z50 Mobile Companion: Feature Processor Chipset Graphic/Video Controller OS/APP ROM Memory Storage Memory PC Card I/O Ports Description NEC VR4121 NEC VRC4171A ITE IT8181 20MB (32MB Japan) 16MB Upgradable to 48MB CompactFlash Type II socket One type III slot RJ-11 Modem port (US/Canada/ Japan models only) Infrared Serial port External display port Cradle connector External earphone jack External microphone jack Internal speaker Built-in microphone TrackPoint III 45watt type Only available for US/Canada/Japan models 16. 65watt Size AAA x 2 8.2" (inch) DSTN
Audio
Pointing Device AC Adapter Internal Modem Battery Pack Backup Battery LCD Display
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Checkout Guide
Use the following procedure as a guide for computer problems.
1. 2.
Obtain the failing symptoms in as much detail as possible. Verify the symptoms by attempting to re-create the failure by running the diagnostic test (refer to "Running the Diagnostics Test" on page 27) or by repeating the same operation. Note
To run the diagnostics test, refer to "Running the Diagnostics" on page 27. If the symptoms are intermittent and cannot be re-created (and therefore not verified), go to "Symptom-to-FRU Index" on page 21 and then go to "Intermittent Problems" on page 26.
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 "Refer To" column.
Symptoms (Verified)
Power failure: The power indicators (AC Adapter LED or Power 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. Cradle does not communicate properly. External monitor does not display. The diagnostic test detected an error and displayed an error code. 6
Refer To
"Power Systems Checkout" on page 9.
"Audio Checkout" on page 7. "Keyboard Checkout" on page 8. "Modem Checkout" on page 9. "ROM Card Checkout" on page 14. "TrackPoint Checkout" on page 15. "Cradle Checkout" on page 15. "External Monitor Self-Test" on page 15. "Running the Diagnostics Test" on page 27.
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Symptoms (Verified)
Other symptoms (such as LCD display problems). PC cards do not work. Brightness/contrast buttons do not work.
Refer To
"Symptom-to-FRU Index" on page 21. "PC Card Slots 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. 2. 3.
Play an audio file. If no sound is heard, go to the diagnostic menu (see "Running the Diagnostics Test" on page 27). Select Audio and run the diagnostic test. If the test detects an audio problem, do the following: Click Start, Programs, WorkPad, and then Rapid Access. Check that "Mute" is not enabled in the Rapid Access utility. Click the "Volume & Sounds" icon in the Control Panel, adjust the volume to mid position and click any sound: if no sound is heard, do the following one at a time: · 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. 2.
Press the microphone button and record and playback any sound. If no sound is heard, do the following one at a time: · Reseat the microphone cable · Replace the microphone cable · Replace the mainboard
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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. 2. 3. 4.
Go to the diagnostic menu (see "Running the Diagnostics Test" on page 27). Select Keyboard and run the diagnostic test. A layout of the keyboard appears on the screen. Check that when each key is pressed, the key's position on the keyboard layout on the screen changes to a blue square. Press OK to end the test.
If the tests detect a keyboard problem, do the following one at a time to correct the problem. Do not replace a nondefective FRU: · · · Reseat the keyboard cable. Replace the keyboard. Replace the mainboard.
Memory Checkout
The WorkPad z50 Mobile Companion is shipped with 16MB 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 the following to isolate memory problems:
1. 2. 3. 4. 5. 6.
Remove all power sources (AC power, battery pack, and backup battery). Remove any installed DRAM card from its slot (see page 18). Connect to a power source and turn on the WorkPad z50. If an error appears during POST, replace the mainboard. Remove all power sources (AC power, battery pack, and backup battery) and reinstall the DRAM card. Connect to a power source, then turn on the WorkPad z50. If an error appears during POST, replace the DRAM card.
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IBM WorkPad z50, Mobile Companion 8
Modem Checkout
If a modem problem occurs, do the following:
1. 2. 3. 4.
Open the Terminal program. Double click the "Make a New Session" icon to open the Session Properties window. Click "Configure...". In the Device Properties window check the "Manual Dial" box. Issue the ATA command. If there is no sound, replace 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. 2. 3.
Remove the battery pack. Connect the AC Adapter and lock the battery release lock. Check that power is supplied. Disconnect the AC Adapter and install the charged battery pack; then check that power is supplied by the battery pack.
If you suspect 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". External Power/Charge Status LED indicates the following status:
LED Amber Green Green AC Adapter Connected Connected Connected Battery Pack Li-ion (standard or highcapacity battery) Li-ion (standard or highcapacity battery) Dry cell battery is connected or no battery is connected -- Charge Status Not full Full --
Not lit
Not connected
--
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AC Adapter Checkout: You are here because the
WorkPad z50 fails only when the AC Adapter is used. · · If the power problem occurs only when the 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. Unplug the AC Adapter cable from the WorkPad z50 and measure the output voltage at the plug of the AC Adapter cable. See the following figure:
1.
2 1
Pin 1 2
Voltage (V dc) 19 V (+ 1.5 V, - 0 V) Ground a. If the voltage is correct, replace the mainboard. b. If the voltage is still incorrect, go to the next step. Unplug the AC Adapter cable from the ac power outlet and wait 5 minutes or longer to allow the overvoltage protection circuit or other protection circuits to be fully discharged and initialized. Plug the AC Adapter cable into the ac power outlet. Measure the output voltage of the AC Adapter. If the voltage is still not correct, replace the AC Adapter. An audible noise from the AC Adapter does not always indicate a defect.
2.
3. 4. 5.
Note:
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IBM WorkPad z50, Mobile Companion 10
Battery Pack Checkout: If the battery pack or the optional high-capacity battery have a problem, refer to the following: 1. 2.
Enter suspend mode by pressing the Power button. Remove the battery pack and check for any mechanical damage. Replace the battery pack if it is damaged. Note: Damage to the battery pack caused by the customer is not covered by the warranty.
3.
Remove the battery pack and measure the voltage between the battery terminals. See the following figure:
1 7
Terminal 1 7 Voltage (V dc) 11.1 V 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), replace the battery pack and the mainboard. If the voltage is correct, but you still suspect a problem with the battery pack, go to "Running the Diagnostics Test" on page 27.
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Checking Operational Charging: There is no difference in
battery charging time whether the system is fully operational 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 while the AC Adapter is connected to the system. The External Power/Charge Status LED will 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 increased from the initial voltage, then repeat the procedure with another discharged battery pack. If this brings the same result, then suspect a mainboard failure.
Optional Dry Cell Battery Checkout: If the optional Dry Cell Kit (dry cell battery pack) has a problem, refer to the following: 1. 2.
Enter suspend mode by pressing the Power button. Remove the dry cell battery pack and measure the voltage between the battery terminals. See the following figure:
7 1
Terminal 1 7 Voltage (V dc) 8.8 12.8 V 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 extremely hot, it must be replaced.
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IBM WorkPad z50, Mobile Companion 12
Backup Battery Checkout (Nonrechargeable)
If removing all power sources except for the backup battery results in the system being reset, suspect a problem with the backup batteries. Refer to the following:
1. 2.
· · ·
Enter suspend mode by pressing the Power button. Remove the AAA batteries and measure the voltage between the battery terminals. The voltage should be 1.11.6 V dc per 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. Make sure either the battery pack is installed or the AC Adapter is connected. If the backup batteries are removed and no other power source is available (AC Adapter or battery pack), the system is reset, and all the stored data is lost.
Note:
The Battery Calibration Application
The Battery Calibration application tests the battery to ensure that it charges to its full capacity. You must first connect the AC Adapter before you use the Battery Calibration application. Click Start, Programs, WorkPad. Click the Battery Calibration icon to open the "Battery Calibration" window:
Press the Start button to begin the program. You will see the following dialog window:
Note:
If the AC Adapter is not connected when you start the Battery Calibration application, you will see a dialog window prompting you to connect it before you continue.
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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 this dialog window. The Battery Calibration application will charge the Li-ion battery to its full capacity. When the battery reaches full capacity, the Battery Calibration application will allow the battery to fully discharge. When the battery is fully discharged, the application will charge the battery again. When the battery has been charged to 2% of its capacity, the Battery Calibration application will stop. Note: During the battery calibration process, the AC Adapter must be connected at all times. To reduce the time it takes to discharge the battery, increase the LCD panel brightness to the maximum level and turn off the automatic backlight control in the Control Panel. It takes up to 12 hours to calibrate the standard battery pack. The high-capacity battery pack needs to go through the calibration procedure twice.
ROM Card Checkout
If you suspect the ROM card has a problem, refer to the following:
1. 2. 3.
Remove all power sources (AC power, battery pack, and backup battery). Reinstall the ROM card. Connect to a power source. If the problem persists, replace the ROM card.
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IBM WorkPad z50, Mobile Companion 14
TrackPoint Checkout
The TrackPoint adjusts the pointer sensor automatically. During this process, the pointer moves on the screen automatically for a short time. This self-acting pointer movement can occur when a slight, steady pressure is applied to the TrackPoint pointer. You must readjust it if the temperature has exceeded its normal temperature range. This symptom does not indicate a hardware problem. No service actions are necessary if the pointer movement stops in a short period of time. If a click button problem or a pointing stick problem occurs, do the following:
1. 2. 3. 4. 5. 6.
Go to the diagnostic menu (see "Running the Diagnostics Test" on page 27). Select TrackPoint and run the diagnostics tests. Verify that the item is selected. Move to another item with the pointing stick. Press the pointing stick (press-to-select) and verify that the item is selected. Verify that both buttons work correctly.
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 nondefective FRU. · · · Reseat the TrackPoint cable. Replace the keyboard. Replace the mainboard.
Cradle Checkout
Use the following procedure to isolate a problem with the cradle. The cradle attaches to the system expansion connector at the bottom of the WorkPad z50.
1. 2. 3. 4. 5. 6.
Enter suspend mode. Remove the failing device from the cradle. Unplug the AC Adapter from the cradle, if attached. Remove the cradle from the WorkPad z50. Reconnect the failing device directly to the WorkPad z50. (If another device is already connected to the WorkPad z50, remove it first.) If the failing device works properly, replace the cradle.
External Monitor Self-Test
If a monitor problem occurs, use the following instructions to correct the problem:
1. 2. 3. 4.
Test the external monitor and cable on another system to make sure they are working correctly. Connect the monitor to the WorkPad z50. Go to the diagnostic menu (see "Running the Diagnostics Test" on page 27) and select Display. If the external monitor does not display correctly, change the mainboard. WorkPad z50 Mobile Companion 15
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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 back up all data and applications in the base memory. Caution: Before removing or inserting the ROM/DRAM card, all power sources (AC power, the main battery pack, and the backup batteries) must be removed. Follow these instructions when inserting the ROM/DRAM card: 1. 2. 3. 4. Place the WorkPad z50 into suspend mode and disconnect AC power. Turn the WorkPad z50 upside down. Remove the main battery and remove the backup batteries. 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. 6.
Locate the ROM/DRAM card Slot. Find the notch on the side of the card.
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WorkPad z50 Mobile Companion
17
7.
With the notched end of the card toward the right side of the socket, insert the card at an angle of approximately 20 degrees into the socket; press it in firmly as shown (1). Gently pivot the card until it snaps into place (2). Attention
To avoid damaging the ROM/DRAM card, do not touch its contact edge. 8. 9. Ensure that the ROM/DRAM card is securely inserted in the slot. 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 the backup batteries. 11. Turn the WorkPad z50 top side up. Connect the AC Adapter and cables; then turn on the WorkPad z50. Attention Handling a Screwdriver · · Use a screwdriver that fits the screw. Use the screwdriver perpendicular to the head of the screw.
Handle the screwdriver properly; otherwise, you might damage the screw.
Removing the ROM/DRAM Card
Note: Before removing the ROM/DRAM card, back up all data and applications in the base memory. 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. 2. 3. 4. Turn off the WorkPad z50. Disconnect AC power. Turn the WorkPad z50 upside down. Remove the main battery and remove the backup batteries.
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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. Using your fingers or a small screwdriver, press out the two latches on the sides of the card away from the slots. The ROM/DRAM card should pop out slightly.
6.
Removing the DRAM and ROM Cards
DRAM Card
ROM Card
Pull the tabs in the direction of the arrows to release the cards.
7. 8.
Gently pull out the card. Replace the ROM/DRAM card cover over the memory slot, aligning the back side of the cover first; then tighten the screw. Attach the main battery and insert the backup batteries.
9.
10. Turn the WorkPad z50 top side up. Connect the AC Adapter and cables; then turn on the WorkPad z50.
Brightness/Contrast Buttons Checkout
If you suspect a problem with the brightness/contrast buttons do the following actions one at a time to correct the problem. Do not replace a nondefective FRU: · · · Reseat the inverter cables and connectors to the mainboard and the LCD panel. Replace the inverter card Replace the mainboard
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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 operates in Full power mode when power 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 enters 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 management 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 application in the Control Panel occurs. Attention The system will not enter suspend mode after an idle time-out under the following conditions: The serial port is connected to another system running Windows CE services. The WorkPad z50 is connected to a network through the PCMCIA LAN card. The system will resume to full power mode under one of the following conditions: · · · · · · · · The Power button is pressed while in suspend mode. An application launching key is pressed. The LCD panel is opened. An internal fax/modem ring-in occurs. The Microphone button is pushed. 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 transmitting and receiving data.
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IBM WorkPad z50, Mobile Companion 20
Symptom-to-FRU Index
The symptom-to-FRU Index lists the symptoms and errors and the possible causes. The most likely cause is listed first. Note: Perform the FRU replacement or actions in the sequence shown in the "FRU/Action" columns. If a FRU replacement did not solve the problem, put the original part back in the WorkPad z50. 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 error codes show the errors detected in system operation. In the following error codes, X can be any number. If no codes are available, use narrative symptoms. If the symptom is not listed, go to "Undetermined Problems" on page 26. Note: For IBM devices not supported by diagnostic codes in WorkPad computers, see the manual for that device.
Numeric Error Codes
Symptom / Error
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 1. 2. 3. 202 DRAM test error (on board DRAM) 203 DRAM test error (DRAM module) Reinstall ROM card ROM card Mainboard Mainboard
FRU / Action in Sequence
Mainboard 1. 2. 3. Reinstall DRAM module DRAM module Mainboard
204 VRAM test error 3XX 301 Keyboard error 301 Keyboard error
Mainboard
1. 2. 3.
Reinstall keyboard Keyboard Mainboard
4XX
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401 LED board error
Symptom / Error
401 LED board error
FRU / Action in Sequence
1. 2. LED board Mainboard
5XX 501 Battery error 501 Battery error 1. 2. 6XX 601 Audio playback error 602 Audio recording error 601 Audio playback error 1. 2. 602 Audio recording error 1. 2. 7XX 701 Display error 701 Display error 1. 2. 8XX 801 Serial port test error 801 Serial port error 1. 2. 9XX 901 PC card/CF test error 901 PC card/CF test error 86XX 8601 Mouse test error 8601 Mouse test error Mainboard Mainboard Serial cable Mainboard LCD panel Mainboard Speaker Mainboard Microphone Mainboard Battery Mainboard
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IBM WorkPad z50, Mobile Companion 22
Function-Related Symptoms
Symptom / Error
The system does not suspend or resume when the LCD is closed or opened.
FRU / ACTION IN SEQUENCE
1. Go to "Suspend Mode" on page 20, and check that the WorkPad z50 can enter suspend mode. LCD panel Mainboard
2.
3.
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
The indicator incorrectly remains off or on, but system runs correctly. The external/power status LED indicator blinks from green to amber.
FRU / Action in Sequence
Mainboard
1. 2.
Check that a correct battery is installed. Battery pack Mainboard Battery pack Mainboard
3.
The battery indicator does not turn on when the battery is installed. 1.
2.
Infrared-Related Symptoms
Symptom / Error
Unable to communicate using the Infrared (IR) Port.
FRU / Action in Sequence
1. Make sure the setup for the IR is correct. Use the WorkPad z50 Configuration utility. Make sure there are no fluorescent lights near the WorkPad z50. The WorkPad z50 may receive optical noise from the fluorescent light. Run the advanced diagnostic test. If an error occurs, replace the parts shown by the FRU code.
2.
3.
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Keyboard- or TrackPoint-Related Symptoms
Symptom / Error
The keyboard (one or more keys) does not work.
FRU / Action in Sequence
1. On the Windows Taskbar, check that Caps Lock or Num Lock are not enabled. Reseat the keyboard cable on the mainboard. Keyboard Mainboard Check the "TrackPoint" settings in the Control Panel. Reseat the keyboard cable on the mainboard. Go to "TrackPoint Checkout" on page15. Keyboard Mainboard
2. 3. 4. The TrackPoint does not work. 1.
2. 3. 4. 5. The pointer moves automatically or does not work correctly.
See "TrackPoint Checkout" on page 15.
LCD-Related Symptoms
Symptom / Error
LCD backlight not working. LCD too dark. LCD brightness cannot be adjusted. LCD contrast cannot be adjusted.
FRU / Action in Sequence
1. Open the "Display Properties" window in the Control Panel. Check that the auto dim setting is not enabled under the "Backlight" tab. Reseat the LCD cable and connectors. LCD assembly Inverter assembly Mainboard Reseat the LCD cable and connectors. LCD assembly Inverter assembly Mainboard
2. 3. 4. 5.
LCD screen unreadable. Non-readable characters. Screen abnormal. Wrong color displayed.
1. 2. 3. 4.
LCD has extra horizontal or vertical lines displayed. LCD lid is loose.
LCD assembly 1. 2. Hinge screws Hinge group
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IBM WorkPad z50, Mobile Companion 24
Peripheral Device Related Symptoms
Symptom / Error
The external monitor does not work correctly.
FRU / Action in Sequence
1. Check that the external monitor is enabled in the Rapid Access utility. Check that the external monitor can display at 640x480 and 800x600, @ 75Hz refresh rate. Connect the external monitor to another PC. If the monitor works fine, replace the mainboard. If not, replace the external monitor. Run serial port wrap test. Device Mainboard Device cable
2.
3.
Serial port device problems.
1. 2. 3. 4.
Note: The serial port and the infrared port can not be used at the same time.
Power-Related Symptoms
Symptom / Error
System enters suspend during operation.
FRU / Action in Sequence
1. 2. 3. Go to "Power Systems Checkout" on page 9. Battery pack Mainboard Check the power outlet
4.
Other Symptoms
Symptom / Error
Errors occur only when the cradle is used. PC Card slot pin is damaged.
FRU / Action in Sequence
See "Cradle Checkout" on page 15. PC Card slots assembly.
Note: If you cannot find a symptom or an error in this list and the problem remains, see "Undetermined Problems".
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Intermittent Problems
Intermittent system hang problems can be caused by a variety of reasons that have nothing to do with a hardware defect, such as: cosmic radiation, electrostatic discharge, or software errors. FRU replacement should be considered only when a recurring problem exists. When analyzing the intermittent problem, do the following:
1. 2. 3.
Run the diagnostic test for the mainboard in loop mode. If no error is detected, do not replace any FRUs. If any error is detected, replace the FRU shown by the FRU code. Rerun the test to verify that no more errors exist.
Undetermined Problems
You are here because the diagnostic tests did not identify which adapter or device failed, installed devices are incorrect, a short circuit is suspected, or the system is inoperative. Follow these procedures to isolate the failing FRU (do not isolate nondefective FRUs). Verify that all attached devices are supported by the WorkPad 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. 2. 3.
4. 5. 6. 7.
Enter suspend mode. Visually check them for damage. If any problems are found, replace the FRU. Remove or disconnect all of the following devices: a. Non-IBM devices b. Devices attached to the cradle c. External devices d. Battery pack e. DRAM f. PC Cards g. Compact Flash Cards Turn on the WorkPad z50. Determine if the problem has changed. If the problem does not reoccur, reconnect the removed devices one at a time until you find the failing FRU. If the problem remains, replace the following FRUs one at a time. Do not replace a nondefective FRU. a. Mainboard b. LCD assembly
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IBM WorkPad z50, Mobile Companion 26
Running the Diagnostics
The following table lists the special tools used in the diagnostics: Tool Name Serial wrap connector PCMCIA wrap card CompactFlash wrap converter FRU P/N 05K2846 35G4703 05K2845
Use either the TrackPoint or the cursor move keys to interact with the tests. The Enter key works the same as selecting the OK icon to reply OK.
1.
Click Start, then Run. In the "Run" dialog window Open box, type "\Windows\ibmdiag.exe". Click OK. The basic diagnostic menu appears.
2. 3.
Start the Advanced Diagnostic test by pressing Ctrl+A on the basic diagnostic menu. The Serial and PC Card devices will appear on the diagnostic menu. 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 without any errors.
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 for the CompactFlash slot test. Refer to the previous section, "Running the Diagnostics" to run the tests.
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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 section provides information about the following: · · "Status Indicators and Control Buttons" "Application Launching Key Assignments" on page 29
Status Indicators and Control Buttons
The system status indicators show the current WorkPad z50 status in different colors (green and amber). The control buttons--1.Notification, 3.Microphone, and 5.Power --are shown in the illustration below.
Indicator 1. Notification
Color Amber
Meaning The system is receiving a transfer call. Push the Notification button to stop the transfer. The battery is fully charged or the rechargeable battery pack is absent (see "Power Systems Checkout" on page 9). Battery charging (see "Power Systems Checkout" on page 9)
5. External Power/Charge Status (this LED is on whenever the AC Adapter is connected)
Green
Amber
To record a message, push the Microphone 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
Application Launching Key Assignments
The applications keys are programmed to launch preset software applications. The following table shows the application keys and their corresponding functions: Key A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 Description Launch or switch to the Windows CE Inbox Launch Windows Explorer or switch to next Explorer Window Launch or switch to Calendar Launch or switch to Contacts Launch or switch to Tasks Launch Pocket Word or switch to next Pocket Word window Launch Pocket Excel or switch to next Pocket Excel window Launch Pocket PowerPoint or switch to next Pocket PowerPoint window Launch Pocket Access or switch to next Pocket Access window Launch or switch to Calculator Launch or switch to Voice Recorder Launch or switch to Rapid Access
To view the application keys and their corresponding functions, click on the Launching Keys icon in the Control Panel to bring up the "Launching Keys Properties" window.
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Removing and Replacing Defective FRUs
This section provides information on removing 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 are marked in numeric order, in square 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 replacement. When replacing a FRU, use the correct screw size as shown in the procedures. Safety Notice 1: Translation on page viii Before the WorkPad z50 is powered-on after FRU replacement, make sure all screws, springs, or other small part