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.
Page 5
Bottom View ...55 ARTS ISTING 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 OTICES Trademarks ...61 IBM WorkPad z50, Mobile Companion vi...
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 800-565- 3344 for assistance or down-load information. The Canadian BBS phone numbers are:...
Compruébelo agitando el sistema y escuchando los posibles ruidos que provocarían. Las piezas metálicas pueden causar cortocircuitos eléctricos. viii IBM WorkPad z50, Mobile Companion viii...
Page 9
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. IBM WorkPad z50, Mobile Companion x...
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.
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.
Page 14
Insulation must not be frayed or worn. 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.
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. 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 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.
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.
Page 18
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.
Page 19
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. IBM WorkPad z50, Mobile Companion 4...
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 Audio Pointing Device AC Adapter Internal Modem Battery Pack Backup Battery LCD Display...
External monitor does not display. The diagnostic test detected an error and displayed an error code. IBM WorkPad z50, Mobile Companion 6 Refer To “Power Systems Checkout” on page 9. “Audio Checkout” on page 7. “Keyboard Checkout” on page 8.
Symptoms (Verified) Other symptoms (such as LCD display problems). PC cards do not work. Brightness/contrast buttons do not work. Audio Checkout Speaker Checkout: speaker do the following: Play an audio file. If no sound is heard, go to the diagnostic menu (see “Running the Diagnostics Test” on page 27).
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. IBM WorkPad z50, Mobile Companion 8...
Modem Checkout If a modem problem occurs, do the following: 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.
Page 25
If the voltage is still not correct, replace the AC Adapter. Note: An audible noise from the AC Adapter does not always indicate a defect. IBM WorkPad z50, Mobile Companion 10 You are here because the Voltage (V dc) 19 V (+ 1.5 V, - 0 V) Ground...
Page 26
Battery Pack Checkout: high-capacity battery have a problem, refer to the following: 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.
Page 27
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. IBM WorkPad z50, Mobile Companion 12 There is no difference in If the optional Dry Voltage (V dc) 8.8 –...
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: Enter suspend mode by pressing the Power button. Remove the AAA batteries and measure the voltage between the battery terminals.
If you suspect the ROM card has a problem, refer to the following: 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. 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.
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.
Follow these instructions when removing the ROM/DRAM card: Turn off the WorkPad z50. Disconnect AC power. Turn the WorkPad z50 upside down. Remove the main battery and remove the backup batteries. IBM WorkPad z50, Mobile Companion 18...
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 .
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. IBM WorkPad z50, Mobile Companion 20...
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...
Page 37
801 Serial port error 901 PC card/CF test error 901 PC card/CF test error 86XX 8601 Mouse test error 8601 Mouse test error IBM WorkPad z50, Mobile Companion 22 FRU / Action in Sequence LED board Mainboard Battery Mainboard Speaker...
Function-Related Symptoms Symptom / Error The system does not suspend or resume when the LCD is closed or opened. The memory count (size) appears different from actual size. The system hangs intermittently. Indicator-Related Symptoms Symptom / Error The indicator incorrectly remains off or on, but system runs correctly.
Screen abnormal. Wrong color displayed. LCD has extra horizontal or vertical lines displayed. LCD lid is loose. IBM WorkPad z50, Mobile Companion 24 FRU / Action in Sequence On the Windows Taskbar, check that Caps Lock or Num Lock are not enabled.
Peripheral Device Related Symptoms Symptom / Error The external monitor does not work correctly. Serial port device problems. Power-Related Symptoms Symptom / Error System enters suspend during operation. Other Symptoms Symptom / Error Errors occur only when the cradle is used. PC Card slot pin is damaged.
FRU. If the problem remains, replace the following FRUs one at a time. Do not replace a nondefective FRU. a. Mainboard b. LCD assembly 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 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.
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. IBM WorkPad z50, Mobile Companion 28 Color Meaning Amber The system is receiving a transfer call.
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: 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...
If the problem is considered a software problem stored on DRAM memory, approach the problem from that standpoint before removing all power sources. Attention: The mainboard is sensitive to, and can be damaged by, electrostatic discharge. IBM WorkPad z50, Mobile Companion 30...
Page 46
An electrostatic discharge (ESD) strap (P/N 6405959) must be used to establish personal grounding. WorkPad z50 Mobile Companion...
Use a torque screwdriver. Screw Information: The following types of screws are used in this machine. Use the correct screw in the Screw Kit (P/N 05K5941) when replacing any FRUs. Screw Screw IBM WorkPad z50, Mobile Companion 32 Type Color Head Flat Black M2.5...
Page 48
Unplugging and Plugging Flexible Cables: Two types of cable and connectors are used in the WorkPad z50. Some connectors have a clasp, which must be unlocked before removing the cable. Unlock the connector by pulling up the clasp with your fingernail or a small flat- tipped screwdriver.
1010 Backup Batteries 1.Turn the WorkPad z50 upside down. Step Size (Quantity) Coin screw M2.5 (1) Note: You can loosen the captive screw in step 2 , but cannot remove it from the backup battery cover. WorkPad z50 Mobile Companion Color Torque Black...
1. Turn the WorkPad z50 upside down. Step Size (Quantity) M2.5 (1) Note: You can loosen the captive screw in step 2 , but cannot remove it from the ROM/DRAM card cover. IBM WorkPad z50, Mobile Companion 36 DRAM Card ROM Card Color Torque Black...
1030 Battery Pack 1. 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. IBM WorkPad z50, Mobile Companion 38...
1040 Keyboard Assembly Backup Batteries (1010) Battery Pack (1030) Attention Remove all power sources from the WorkPad z50 before removing the keyboard assembly. 1. Turn the WorkPad z50 upside down. Step Size (Quantity) M2.5 (5) Note: Make sure you use the correct screw and tighten the screw to the torque specified.
1050 Bottom Cover Backup Batteries (1010) Battery Pack (1030) Keyboard Assembly (1040) IBM WorkPad z50, Mobile Companion 40...
Page 56
Attention! Attention Be careful when assembling the bottom cover and the battery shield not to pinch the cables. Step Size (Quantity) M2.5 (4) M2.0 (2) Hex (2) M2.5 (2) Note: Make sure you use the correct screw and tighten the screw to the torque specified. WorkPad z50 Mobile Companion Color Torque...
Keyboard Assembly (1040) Bottom Cover (1050) Step Size (Quantity) M2.0 (3) Note: Make sure you use the correct screw and tighten the screw to the torque specified. IBM WorkPad z50, Mobile Companion 42 Color Torque 3 kgcm Length 6.0 mm...
1070 LCD Bezel Attention Be careful when lifting the bezel cover loose. The plastic tabs that hold it securely to the LCD unit are easily damaged. Step Size (Quantity) M2.5 (2) Note: Make sure you use the correct screw and tighten the screw to the torque specified.
URN THE Remove the LCD unit. Step Size (Quantity) M2.5 (4) Note: Make sure you use the correct screw and tighten the screw to the torque specified. IBM WorkPad z50, Mobile Companion 44 AD Z OVER Color Black Torque Length 3 kgcm 4.0 mm...
1170 Hardware Button Board Backup Batteries (1010) Battery Pack (1030) Keyboard Assembly (1040) Bottom Cover (1050) Step Size (Quantity) M2.0 (1) Note: Make sure you use the correct screw and tighten the screw to the torque specified. WorkPad z50 Mobile Companion Color Torque 3 kgcm...
RJ-11 Assembly (1160) Hardware Button Board (1170) Step Size (Quantity) M2.5 (4) Note: Make sure you use the correct screw and tighten the screw to the torque specified. IBM WorkPad z50, Mobile Companion 52 Color Torque Black 3 kgcm Length 4.0 mm...
2. External earphone jack 3. Microphone jack 4. PC card eject button 5. PC card slot Right View 1. External monitor port 2. CompactFlash slot 3. CompactFlash eject button 4. Infrared data port 5. Serial port IBM WorkPad z50, Mobile Companion 54...
System Unit FRU List FRU PART DESCRIPTION POINTING STICK CAP K/B ASS’ Y (USA) K/B ASS’ Y (CAN-FRE) K/B ASS’ Y (FRE) K/B ASS’ Y (JAP) K/B ASS’ Y (UK) K/B ASS’ Y (GERMANY) TOP COVER ASS’ Y MAIN BOARD ASS’ Y MAIN BOARD ASS’...
LCD BEZEL ASS’ Y LCD MODULE ASS’ Y INVERTER ASS’ Y LCD COVER ASS’ Y HINGE GROUP FPC AND WIRE GROUP 58 IBM WorkPad z50, Mobile Companion (2608-1Ax) FRU ELEMENTS LCD BEZEL LCD BUTTON SCREW CAP 8.2" DSTN INV. MODULE (AMB)
Miscellaneous and Other Parts DESCRIPTION FRU ELEMENTS MISC PART GROUP 1 HOOK KNOB HOOK SPRING IR LENS DOCKING SHUTTER RUBBER FOOT COVER SWITCH/B ASS’ Y H/W BTN BOARD ASS’ Y CABLE ASS’ Y, MIC CABLE ASS’ Y, RJ-11 RJ-11 DOOR (EMEA ONLY) BATT SLOT BRACKET LABEL CAN HOMO, (US/CA/JA ONLY)
Power Cord IBM power cords for a specific country are usually available only in that country: For 2-pin power cords: Used in These Countries Power Cord Part Number 13H5273 Japan For 3-pin power cords: Used in These Countries Power Cord...
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 evaluation and verification of operation in conjunction with other products, except those expressly designated by IBM, are the responsibility of the user.