Page 2 - Note
© Copyright IBM Corp. 1999 iii Note Bef ore using this inf ormation and the product it supports,be sure to read the general inf ormation under “Notices”on page 61. First Edition (March 1999) The following paragraph does not apply to the UnitedKingdom or any country where such provisions areinconsist...
Page 3 - About This Manual; Important
iv IBM W orkPad z50, Mobile Companion iv About This Manual This manual contains service and ref erence inf ormation f orthe W orkPad z50, Mobile Companion. Use this manualalong with the diagnostic software to troubleshoot problemseff ectively. This manual is divided into sections as f ollows: • The ...
Page 4 - Contents
© Copyright IBM Corp. 1999 v Contents Introduction ......................................................................... vii I MPORTANT S ERVICE I NFORMATION VII FRU Replacement Strategy ....................................................... vii S AFETY N OTICES (M ULTI - LINGUAL T RANSLATIONS ...
Page 6 - Introduction; Important Service Information
© Copyright IBM Corp. 1998 vii Introduction Important Service Information Important Software fixes are customer installable. Such fixes arelocated on the PC Company Bulletin Board Service(BBS). The direct line f or modem connection is 919-557-0001 or tieline 255-0001 (IBM internal phone number). Adv...
Page 7 - Safety Notice 1
viii IBM W orkPad z50, Mobile Companion viii Safety Notices (Multi-lingual Translations) In this manual, saf ety notices appear in English with a pagenumber ref erence to the appropriate multi-lingual, translatedsaf ety notice f ound in this section. The following saf ety notices are provided in Eng...
Page 8 - Safety Notice 2
© Copyright IBM Corp. 1998 ix Safety Notice 2 The battery pack contains small amounts of harmfulsubstances. Do not disassemble it, throw it into fire orwater, or short-circuit it. Dispose of the battery asrequired by local ordinances or regulations. Use only thebattery in the appropriate parts listi...
Page 9 - Safety Notice 3
x IBM W orkPad z50, Mobile Companion x Safety Notice 3 If the LCD breaks and the fluid from inside the LCD getsinto your eyes or on your hands, immediately wash theaff ected areas with water f or at least 15 minutes. Seekmedical care if any symptoms from the fluid are presentafter washing. Si le pan...
Page 10 - Safety Notice 5
© Copyright IBM Corp. 1998 xi Safety Notice 5 Though main batteries have low voltage, a shorted orgrounded battery can produce enough current to burncombustible materials or personnel. Bien que le voltage des batteries principales soit peuélevé, le court-circuit ou la mise à la masse d'une batteriep...
Page 11 - Do not attempt to lift any
xii IBM W orkPad z50, Mobile Companion xii Safety Information The following section contains the saf ety information thatyou need to be f amiliar with bef ore servicing an IBM mobilecomputer. General Safety Follow these rules to ensure general saf ety: • Observe good housekeeping in the area of them...
Page 12 - Electrical Safety
© Copyright IBM Corp. 1998 xiii Electrical Safety Observe the f ollowing rules when working on electricalequipment. Important Use only approved tools and test equipment. Some handtools have handles covered with a soft material that doesnot insulate you when working with live electrical currents. Man...
Page 13 - Safety Inspection Guide
xiv IBM W orkPad z50, Mobile Companion xiv • Regularly inspect and maintain your electrical handtools for saf e 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 powered- off. • Always l...
Page 15 - Notes; Grounding Requirements
xvi IBM W orkPad z50, Mobile Companion xvi Handling ElectrostaticDischarge-Sensitive Devices Any computer part containing transistors or integratedcircuits (Ics) should be considered sensitive to electrostaticdischarge (ESD). ESD damage can occur when there is adifference in charge between objects. ...
Page 16 - WorkPad z50 Mobile Companion
W orkPad z50 Mobile Companion 1 WorkPad z50 Mobile Companion (2608) Read This First Bef ore you go to the checkout guide, be sure to read thissection. Important • Only certified trained personnel should servicethe computer. • Read FRU service procedures bef ore replacingany FRUs. • Replace FRUs only...
Page 17 - Screw Tightening Information; Plastic to Plastic; 0 Degrees More; Logic card to Plastic; Plastic; Torque Driv er; How to Diagnose Multiple FRUs:
2 IBM W orkPad z50, Mobile Companion 2 Screw Tightening Information Loose screws can cause reliability problems. The IBMW orkPad z50 addresses this problem with nylon coatedscrews. Tighten screws as f ollows: Plastic to Plastic Turn an additional 90 degrees af ter the screw headtouches the surf ace ...
Page 18 - Attention; The following is not covered under warranty:
W orkPad z50 Mobile Companion 3 Attention Pushing the W orkPad z50’s Power button will power on(or resume) the system, or put the system in suspendmode: there is no power-off state. If the AC Adapter, battery pack, and backup battery areremoved, the system is reset and all the stored data islost. Th...
Page 20 - Product Overview; Feature
W orkPad z50 Mobile Companion 5 Product Overview Refer to the f ollowing table f or an overview of the systemfeatures of the W orkPad z50 Mobile Companion: Feature Description Processor NEC VR4121 Chipset NEC VRC4171A Graphic/VideoController ITE IT8181 OS/APP ROM 20MB (32MB Japan) Memory 16MB Upgrad...
Page 21 - Checkout Guide; Refer To
6 IBM W orkPad z50, Mobile Companion 6 Checkout Guide Use the f ollowing procedure as a guide f or computerproblems. 1. Obtain the f ailing symptoms in as much detail aspossible. 2. Verif y the symptoms by attempting to re-create thefailure by running the diagnostic test (ref er to“Running the Diagn...
Page 22 - Audio Checkout
W orkPad z50 Mobile Companion 7 Symptoms (Verified) Refer To Other symptoms (suchas LCD displayproblems). “Symptom-to-FRU Index” onpage 21. PC cards do not work. “PC Card Slots Test” onpage 27. Brightness/contrastbuttons do not work. “Brightness/Contrast ButtonsCheckout” on page 19. Audio Checkout S...
Page 24 - Modem Checkout; Power Systems Checkout
W orkPad z50 Mobile Companion 9 Modem Checkout If a modem problem occurs, do the f ollowing: 1. Open the Terminal program. Double click the “Makea New Session” icon to open the Session Propertieswindow. 2. Click “Configure…”. In the Device Propertieswindow check the “Manual Dial” box. 3. Issue the A...
Page 25 - Pin
10 IBM W orkPad z50, Mobile Companion 10 AC Adapter Checkout: You are here because the W orkPad z50 f ails only when the AC Adapter is used. • If the power problem occurs only when the cradle isused, replace the cradle. • If the power-on indicator f or the AC Adapter does notturn on, check the power...
Page 26 - Battery Pack Checkout:; Terminal
W orkPad z50 Mobile Companion 11 Battery Pack Checkout: If the battery pack or the optional high-capacity battery have a problem, ref er to the f ollowing: 1. Enter suspend mode by pressing the Power button. 2. Remove the battery pack and check f or anymechanical damage. Replace the battery pack if ...
Page 27 - Checking Operational Charging:; Optional Dry Cell Battery Checkout:
12 IBM W orkPad z50, Mobile Companion 12 Checking Operational Charging: There is no difference in battery charging time whether the system is fully operationalor not. T o check the battery charging, use a dischargedbattery pack or a battery pack that has less than 50% of totalpower remaining. Turn o...
Page 28 - The Battery Calibration Application; Battery Calibration
W orkPad z50 Mobile Companion 13 Backup Battery Checkout(Nonrechargeable) If removing all power sources except f or the backup batteryresults in the system being reset, suspect a problem with thebackup batteries. Ref er to the f ollowing: 1. Enter suspend mode by pressing the Power button. 2. Remove...
Page 29 - Press OK to close this dialog window.; ROM Card Checkout
14 IBM W orkPad z50, Mobile Companion 14 Press OK to close the message window, then click Start tobegin the calibration. You will see the f ollowing dialogwindow: Press OK to close this dialog window. The Battery Calibration application will charge the Li-ionbattery to its full capacity. W hen the b...
Page 32 - Installing the ROM/DRAM Card
W orkPad z50 Mobile Companion 17 Installing the ROM/DRAM Card This section describes how to install the ROM card or theoptional DRAM card to the W orkPad z50. Note: W hen you remove the ROM/DRAM card, you will loseall stored data. Bef ore you remove the ROM/DRAM card, besure to back up all data and ...
Page 33 - Removing the ROM/DRAM Card
18 IBM W orkPad z50, Mobile Companion 18 7. W ith the notched end of the card toward the right sideof the socket, insert the card at an angle ofapproximately 20 degrees into the socket; press it infirmly as shown (1). Gently pivot the card until it snapsinto place (2). Attention To avoid damaging th...
Page 34 - Brightness/Contrast Buttons Checkout
W orkPad z50 Mobile Companion 19 5. Unscrew the single (captive) screw that secures theROM/DRAM card compartment cover to the chassis.Remove the cover. 6. Using your fingers or a small screwdriver, press out thetwo latches on the sides of the card away from the slots.The ROM/DRAM card should pop out...
Page 36 - Numeric Error Codes; FRU / Action in Sequence
W orkPad z50 Mobile Companion 21 Symptom-to-FRU Index The symptom-to-FRU Index lists the symptoms and errorsand the possible causes. The most likely cause is listed first. Note: Perf orm the FRU replacement or actions in thesequence shown in the “FRU/Action” columns. Ifa FRU replacement did not solv...
Page 38 - Function-Related Symptoms; Indicator-Related Symptoms; Infrared-Related Symptoms
W orkPad z50 Mobile Companion 23 Function-Related Symptoms Symptom / Error FRU / A CTION IN S EQUENCE The system does notsuspend or resume when theLCD is closed or opened. 1. Go to “Suspend Mode”on page 20, and checkthat the WorkPad z50can enter suspendmode. 2. LCD panel 3. Mainboard The memory coun...
Page 40 - Peripheral Device Related Symptoms; Power-Related Symptoms; Other Symptoms
W orkPad z50 Mobile Companion 25 Peripheral Device Related Symptoms Symptom / Error FRU / Action in Sequence The external monitor doesnot work correctly. 1. Check that the externalmonitor is enabled in theRapid Access utility. 2. Check that the externalmonitor can display at640x480 and 800x600, @75H...
Page 41 - Intermittent Problems; If no error is detected, do not replace any FRUs.; Undetermined Problems
26 IBM W orkPad z50, Mobile Companion 26 Intermittent Problems Intermittent system hang problems can be caused by avariety of reasons that have nothing to do with a hardwaredef ect, such as: cosmic radiation, electrostatic discharge, orsoftware errors. FRU replacement should be consideredonly when a...
Page 42 - Running the Diagnostics; Tool Name; PC Card Slot Test
W orkPad z50 Mobile Companion 27 Running the Diagnostics The following table lists the special tools used in thediagnostics: Tool Name FRU P/N Serial wrap connector 05K2846 PCMCIA wrap card 35G4703 CompactFlash wrap converter 05K2845 Use either the TrackPoint or the cursor move keys to interactwith ...
Page 43 - Notification
28 IBM W orkPad z50, Mobile Companion 28 UUID A UUID (universal unique ID) is uniquely assigned to eachsystem board f or system management purposes. The UUIDis stored on the EEPROM on the board. Related Service Procedures This section provides inf ormation about the following: • “Status Indicators a...
Page 44 - Application Launching Key Assignments; Key
W orkPad z50 Mobile Companion 29 Application Launching Key Assignments The applications keys are programmed to launch presetsoftware applications. The following table shows theapplication keys and their corresponding functions: Key Description A1 Launch or switch to the W indows CE Inbox A2 Launch W...
Page 45 - Removing and Replacing Defective FRUs; Safety Notice 1: Translation on page viii
30 IBM W orkPad z50, Mobile Companion 30 Removing and Replacing Defective FRUs This section provides inf ormation on removing and replacingFRUs. • Do not damage any part. Only certified and trainedpersonnel should service the W orkPad z50 MobileCompanion. • The arrows in the “Removals and Replacemen...
Page 47 - Important Notice
32 IBM W orkPad z50, Mobile Companion 32 Important Notice The W orkPad z50 Mobile Companion uses special nylon-coated screws with the f ollowing characteristics: • They maintain tight connections. • They do not easily come loose, even with shock orvibration. But: • They need additional force to tigh...
Page 48 - Unplugging and Plugging Flexible Cables:
W orkPad z50 Mobile Companion 33 Unplugging and Plugging Flexible Cables: Two types of cable and connectors are used in the W orkPadz50. Some connectors have a clasp, which must beunlocked bef ore removing the cable. Unlock the connectorby pulling up the clasp with your fingernail or a small flat-ti...
Page 49 - Removal reference
34 IBM W orkPad z50, Mobile Companion 34 Removal reference The chart below shows the order f or removing FRUs. W hena FRU has been removed, f ollow the arrows to the FRU (orFRUs) that can be removed next. 1010 Backup Batteries 1020 ROM/DRAM Card 1030 Battery Pack 1040 Keyboard Assembly 1050 Bottom C...
Page 50 - Step
W orkPad z50 Mobile Companion 35 1010 Backup Batteries 1.Turn the W orkPad z50 upside down. Step Size (Quantity) Color Torque Length 2 Coin screwM2.5 (1) Black 3 kgcm 4.0 mm Note: You can loosen the captive screw in step 2, butcannot remove it from the backup battery cover.
Page 51 - DRAM Card
36 IBM W orkPad z50, Mobile Companion 36 1020 ROM/DRAM Card • Backup Batteries (1010) • Battery Pack (1030) Attention Remove all power sources from the W orkPad z50 bef orereplacing the ROM/DRAM card. 1.Turn the W orkPad z50 upside down. DRAM Card ROM Card Step Size (Quantity) Color Torque Length 2 ...
Page 60 - 090 Inverter Card and LCD Panel
W orkPad z50 Mobile Companion 45 1090 Inverter Card and LCD Panel • Backup Batteries (1010) • Battery Pack (1030) • Keyboard Assembly (1040) • Bottom Cover (1050) • LCD Bezel (1070)
Page 63 - 150 PC Card Slot Assembly
48 IBM W orkPad z50, Mobile Companion 48 1140 Audio Ports The ear jack and speaker out ports are all built into themainboard. If any of these devices has malfunctioned, youmust replace the mainboard. 1150 PC Card Slot Assembly • Backup Batteries (1010) • Battery Pack (1030) • Keyboard Assembly (1040...
Page 66 - 170 Hardware Button Board
W orkPad z50 Mobile Companion 51 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 tightenthe screw to the tor...
Page 71 - System Unit Parts Listing
56 IBM W orkPad z50, Mobile Companion 56 System Unit Parts Listing 1 2 3 4 5 6 7 89 10 11
Page 72 - System Unit FRU List
WorkPad z50 Mobile Companion (2608-1Ax) 57 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 2 K/B ASS’Y (GER...
Page 73 - LCD Unit Parts List
58 IBM WorkPad z50, Mobile Companion (2608-1Ax) LCD Unit Parts List No. FRU PART DESCRIPTION FRU ELEMENTS FRU P/N QTY CRU LCD BEZEL ASS’Y 05K5934 1 LCD BEZEL 1 LCD BUTTON 1 1 SCREW CAP 2 2 LCD MODULE ASS’Y 8.2" DSTN 05K9399 1 INVERTER ASS’Y 10L1216 1 INV. MODULE (AMB) 1 3 INVERTER MYLARW/COPPER ...
Page 74 - Tools
WorkPad z50 Mobile Companion (2608-1Ax) 59 Miscellaneous and Other Parts DESCRIPTION FRU ELEMENTS QTY FRU P/N CRU MISC PART GROUP 1 1 05K5940 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...
Page 75 - Power Cord
60 IBM W orkPad z50, Mobile Companion 60 Power Cord IBM power cords f or a specific country are usually availableonly in that country: For 2-pin power cords: IBMPowerCordPartNumber Used in These Countries CRU 13H5273 Japan √ For 3-pin power cords: IBMPowerCordPartNumber Used in These Countries CRU 7...
Page 77 - IBM
IBM Part Number: 37L2095 Printed in U.S.A. S37L-2ð95-ðð
