IBM Z50 About This Manual

iv IBM WorkPad z50, Mobile Companion iv

About This Manual

This manual contains service and refer ence information f or

the WorkPad z50, Mobile Companion. Use this manual

along with the diagn ostic software to t roubleshoot problems

effect ively.

This manual is divided into sections as follows:

• The Introduction s ection provides gen eral information,

and safety inform ation required to s ervice computers.

• The product-specif ic section includes s ervice,

reference, and product-s pecific parts inform ati on.

Important

This manual is intended for trained service personnel who

are familiar with W orkPad products.

Before servicing an IBM WorkPad prod uct, be sure to

review th e safety in formation under “S afety Noti ces” on

page viii and “Safety Inf or m ati on” on page xii.

Contents

Main First Edition (March 1999) About This Manual Contents Page Introduction Important Service In formation FRU Replacement Strategy Safety Notices (Multi-lingual Translations) Page Page Page Safety Information General Safety Electrical Safety exposed Never assume check with the power on Safety Inspection Guid e Page Handling Electrostatic Discharge-Sensitive Devices 1. Use product-spec ific ESD procedures when they 2. Make sure that the ESD protective devices you Grounding Requirements WorkPad z50 Mobile Comp ani on 1 WorkPad z50 Mobile Com panion (2608) Read This First Before you go to th e checkout guide, b e sure to read this section. Important Screw Tightening Information 90 Degrees More Plastic 180 Degrees More Plastic Logic Card Cradle Problems: What to Do First: Page Product Overview Checkout Guide 1. Obtain the failing symptoms in as much detail as 2. Verify the symptoms by attempting to re-create the 3. Use the following table with the verified symptom to Symptoms (Verified) Refer To Audio Checkout Speaker Checkout: If you suspect a prob lem with the 1. Play an audio file. If no sound is h eard, go to the Microphone Checkout: If you suspect a problem with the 1. Press the microp hone button and rec ord and Keyboard Checkout Memory Checkout Modem Checkout 1. Open the Terminal program. Double click the Make 2. Click Configure . In the Device Proper ti e s 3. Issue the ATA c ommand. 4. If there is no sound, replace the mainboard. Power Systems Checkout Page Battery Pack Checkout: 2. Remove the battery pack and check for any 3. Remove the battery pack and meas ure the voltage 4. If the voltage is l ess than 11.1 V dc, the battery pack Checking Operational Charging: Optional Dry Cell Battery Checkout: If the optional Dry 2. Remove the dry c ell battery pack and measure the 3. If the voltage is l ess than 8.8 V dc, t he dry cell batter y Backup Battery Checkout (Nonrechargeable) 2. Remove the AAA bat teries and measur e the voltage Battery Calibration The Battery Calibra tion Application twice. ROM Card Checkout 1. Remove all power source s (AC power, battery pack, 2. Reinstall the ROM card. 3. Connect to a power source. If the problem persists, TrackPoint Checkout Cradle Checkout External Monitor Self-T e st Page Installing the ROM/DR AM Card Removing the ROM/DRAM Card Removing the DRAM and ROM Cards DRAM Card ROM Card Brightness/Contrast Buttons Checkout Power Management Features Full Power Mode Suspend Mode Symptom-to-FRU Ind e x Numeric Error Codes 22 IBM W orkPad z50, Mobil e Companion 22 WorkPad z50 Mobile Comp ani on 23 Function-Related Symptoms 3. Indicator-Related Symptoms 3. 2. Keyboard- or TrackPoint-Related Symptoms LCD-Related Sympto ms Peripheral Device Re lated Symptoms Power-Related Symp to ms Other Symptoms Intermittent Prob lems 1. Run the diagnostic test for the mainb oard in loop Undetermined Problems 1. Enter suspend mode. 2. Visually check th em for damage. If any problems are 3. Remove or disconnect all of the following devices: Running the Diagnostics 1. Click Start, then Run. In th e "Run dialog window 2. Start the Advanced Diagnostic test by pressing 3. Click on a device to run the test. The test progress PC Card Slot Test UUID Related Service Procedures Power Microphone Notification Application Launching Key Assignments Removing and Replacing Defective FRUs Page Important Notice But: Page Removal reference Page 1020 ROM/DRAM Card Page Page 1040 Keyboard Assembly Page Attention! 1060 Mainboard 1070 LCD Bezel 1080 LCD Unit Page 1110 FPC Assembly Page Page Page Page 1170 Hardware Button Board 1180 Top Cover Locations Front Right View Page Page System Unit Parts Listing WorkPad z50 Mobile Companion (2608-1Ax) 57 System Unit FRU List 1 2 3 4 LCD Unit Parts List 1 2 3 4 Miscellaneous and Other Parts See the table of tools on page 26. Option Parts FRU List Other Parts CRU Power Cord IBM power cords for a specific country are usually available only in that country: For 2-pin power cords: For 3-pin power cords: Notices Trademarks