HP book XE2 manual Troubleshooting the Problem

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Troubleshooting

The suggestions in this section can help isolate and repair the cause of a problem. To ensure quality repair, HP recommends that you follow the basic troubleshooting steps shown in the illustration below.

Check the customer’s description of the problem and any supporting information.

Try to duplicate the customer’s problem.

Troubleshoot the problem using

-Diagnostic tools.

-Troubleshooting suggestions.

Verify the repair by testing the functionality of the complete unit .

Figure 3-1. Basic Troubleshooting Steps

Troubleshooting the Problem

Record pertinent information about the unit:

￿Model and serial number.

￿Operating system and version.

￿BIOS version.

￿Accessories and peripherals used. Analyze the problem:

Observe Symptoms. Using the customer’s information, try to duplicate the problem. Determine how the problem differs from proper behavior. Also, take note of the functions that do work properly.

Separate Problems. If there is more than one symptom, separate them into distinct problems.

3-2

Troubleshooting and Diagnostics

HP OmniBook XE2

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Contents Page Edition History Contents Figures TablesHP OmniBook XE2 Introduction Sources of OmniBook InformationSource Address or NumberOmniBook XE2 Features and Operation OmniBook Front ViewOmniBook Bottom View Turning the OmniBook On and Off OmniBook Status LightsActivating Power Modes Checking the Status of the OmniBook Status Lights LED PCAUsing Fn Hot Keys Resetting the OmniBookFn Hot Keys Hot KeySystem Resources System InterruptsSystem Memory 00000 9FFFF A0000 Bffff C0000 Cffff D0000 DbfffSystem Input/Output Addresses 100-3FF DMA ChannelsSpecifications OmniBook XE2 SpecificationsSoftware Security Features Environmental Limits Major ICs Replaceable Module Diagram Internal Design10. Functional Structure Docking portPage Removal Cross-Reference Torque kgfcm Torque lbfin Recommended Screw TorquesScrew Thread Size Required Equipment Removing the BatteryRemoval Procedure RAM Board Replacement Part Numbers Removing a RAM BoardDescription Product NumberReleasing the RAM Module Latches Reassembly Notes Hard Disk Drive Replacement Part Number Removing the Hard Disk DrivePart Number Exchange Part NumberReplacement Procedure Replacing Small PartsReplacing Small Parts User-Replaceable Part Feet RAM Module CoverHP Authorized Service Providers Only Removing the FanRemoving the Keyboard Removing the Keyboard Cover and ScrewsInstalling the Keyboard Reassembly Notes Removing the Display Assembly Removing the Display Assembly Reassembly NotesRemoving the LCD Module Removing the LCD Module Reassembly Notes Removing the Top Case Removing the Top Case10. Detaching the Bottom Case Removing the CPU and Motherboard Technology Code DD11. Removing the CPU and Motherboard Storing the Serial Number Electronically Installing a New Serial Number Label Removing Other Components Removing Display ComponentsRemoving Top Case Components Removing Bottom Case ComponentsModem PCA Motherboard RAM Board Removal Procedures LED PCAHP OmniBook XE2 Troubleshooting and Diagnostics Troubleshooting Troubleshooting the ProblemVerifying the Repair Suggestions for Troubleshooting Scope of Diagnostic ToolsPower-On DMI/TopTools Self-Test If installed Bios SetupStartup Troubleshooting SuggestionsSymptom Power/Battery Call Center SuggestionsRepair Center Likely Causes Repair Center CommentsFloppy drive Call Center Suggestions Touch padSerial/Parallel Miscellaneous Accessories Creating a Diagnostic Floppy Disk Diagnostic ToolsOmniBook Diagnostic Program Running the Diagnostic Test EnterOmniBook Diagnostic Error Codes Code Suggestions System TestsHard Disk Tests SMBus Tests Power-On Self-Test IR Tests FIR enabled, undockedPost Terminal-Error Beep Codes Post MessagesBeep Codes Post Description02B0 Diskette drive a error 02B1 Diskette drive B error Press F1 to resume, F2 to Setup, F3 for previous Message DescriptionInstalling the DMI Package Uninstalling the DMI PackageUsing the DMI Interface Desktop Management Interface DMIContents of the DMI Package Bios Setup Menus and Parameters Bios Setup UtilityRunning the Bios Setup Utility Power APM Menu Security MenuBoot Menu Exit MenuPage Exploded View Except Display Components Exploded View Display Components Exploded View Motherboard Components OmniBook XE Replaceable Parts HP Part Number HP Exchange Part NumberDescription Technology CodeLCD CVR, ADI 12 TFT LCD CVR, CPT 14 TFT DC/DD PCA, NO-MODEM Layer Accessory Replaceable Parts Cover, Label Protect Order FromQuanta Part Number Order From Quanta Description Part Number Order From Quanta Part Number Reference Quanta Part Number LCD BKT, CPT 14 TFT DC/DD/DE DOOR, RAMLCD CVR, CPT 14 TFT LCD Bezel Password Removal Policy Imperfections Not Allowed Hewlett-Packard Display Quality StatementOmniBook XE LCD Guidelines TFT Type of Imperfection Mechanical Imperfections OmniBook XE Technology Codes DetailsPart Number P F1753-90004