HP book XE2 manual Reassembly Notes, Storing the Serial Number Electronically

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Tilt the left of the modem PCA up to detach the connector on the bottom.

Lift the PCA out.

9.Remove the motherboard:

Using the Phillips screwdriver, remove the two brackets; the left bracket has two screws, and the right has three.

Using the Phillips screwdriver, remove the two screws in front (on either side of the battery connector), the one screw in front of the modem PCA, and the one screw on the right side.

Using the 5-mm hex driver, remove the standoff on the left side of the VGA connector.

Lift the motherboard at the rear and slide it out and upward from the bottom case.

Reassembly Notes

Note: Installing a New Motherboard

If any RAM boards are present, transfer them from the old motherboard to the new one:

Store the serial number electronically in the new motherboard—see the steps below.

When reinserting the motherboard, slip the battery connector under the front edge of the bottom case and drop in place.

When reinstalling the LED PCA, tilt the PCA toward the back to slip the audio jacks into their openings, and be sure that the connectors line up on the bottom.

When reinstalling the CPU module, press only on the two circles near the front edge.

When reinstalling the floppy disk drive, slip the cable into the cable connector and slide the connector closed.

When reinstalling the heatsink, be sure that the insulating material is intact.

Note: Installing a New Bottom Case

Install a new serial number label and overlay—see the steps below.

Storing the Serial Number Electronically

1.Exit Windows and boot to a DOS prompt.

￿For Windows 95 or Windows 98, press F8 during reboot and select Command Prompt Only.

￿For Windows NT, boot from a DOS boot floppy disk.

2.Run ESN.EXE from one of these sources:

￿On a factory software installation, change to the \Omnibook\Drivers\Hputils directory and type esn at the prompt.

￿Otherwise, copy \Omnibook\Drivers\Hputils\Esn.exe from the OmniBook XE2 Recovery CD, then run it on the OmniBook.

3.Store the serial number:

￿If you are prompted for the serial number, type the serial number shown on the bottom of the case.

￿If a serial number has already been stored, you must call an HP support center to change it.

HP OmniBook XE2

Removal and Replacement 2-19

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Contents Page Edition History Contents Tables FiguresHP OmniBook XE2 Address or Number IntroductionSources of OmniBook Information SourceOmniBook XE2 OmniBook Front View Features and OperationOmniBook Bottom View OmniBook Status Lights Turning the OmniBook On and OffActivating Power Modes Status Lights LED PCA Checking the Status of the OmniBookHot Key Using Fn Hot KeysResetting the OmniBook Fn Hot Keys00000 9FFFF A0000 Bffff C0000 Cffff D0000 Dbfff System ResourcesSystem Interrupts System MemoryDMA Channels System Input/Output Addresses 100-3FFOmniBook XE2 Specifications SpecificationsSoftware Security Features Environmental Limits Major ICs Internal Design Replaceable Module DiagramDocking port 10. Functional StructurePage Removal Cross-Reference Recommended Screw Torques Screw Thread SizeTorque kgfcm Torque lbfin Removing the Battery Removal ProcedureRequired Equipment Product Number RAM Board Replacement Part NumbersRemoving a RAM Board DescriptionReleasing the RAM Module Latches Reassembly Notes Exchange Part Number Hard Disk Drive Replacement Part NumberRemoving the Hard Disk Drive Part NumberPart Feet RAM Module Cover Replacement ProcedureReplacing Small Parts Replacing Small Parts User-ReplaceableRemoving the Fan HP Authorized Service Providers OnlyRemoving the Keyboard Cover and Screws Removing the KeyboardInstalling the Keyboard Reassembly Notes Removing the Display Assembly Reassembly Notes Removing the Display AssemblyRemoving the LCD Module Removing the LCD Module Reassembly Notes Removing the Top Case Removing the Top Case 10. Detaching the Bottom Case Technology Code DD Removing the CPU and Motherboard11. Removing the CPU and Motherboard Storing the Serial Number Electronically Installing a New Serial Number Label Removing Bottom Case Components Removing Other ComponentsRemoving Display Components Removing Top Case ComponentsLED PCA Modem PCA Motherboard RAM Board Removal ProceduresHP OmniBook XE2 Troubleshooting and Diagnostics Troubleshooting the Problem TroubleshootingVerifying the Repair Bios Setup Suggestions for TroubleshootingScope of Diagnostic Tools Power-On DMI/TopTools Self-Test If installedTroubleshooting Suggestions SymptomStartup Repair Center Comments Power/BatteryCall Center Suggestions Repair Center Likely CausesTouch pad Floppy drive Call Center SuggestionsSerial/Parallel Miscellaneous Accessories Diagnostic Tools OmniBook Diagnostic ProgramCreating a Diagnostic Floppy Disk Enter Running the Diagnostic TestCode Suggestions System Tests OmniBook Diagnostic Error CodesHard Disk Tests SMBus Tests IR Tests FIR enabled, undocked Power-On Self-TestPost Description Post Terminal-Error Beep CodesPost Messages Beep Codes02B0 Diskette drive a error 02B1 Diskette drive B error Message Description Press F1 to resume, F2 to Setup, F3 for previousDesktop Management Interface DMI Installing the DMI PackageUninstalling the DMI Package Using the DMI InterfaceContents of the DMI Package Bios Setup Utility Running the Bios Setup UtilityBios Setup Menus and Parameters Security Menu Power APM MenuExit Menu Boot MenuPage Exploded View Except Display Components Exploded View Display Components Exploded View Motherboard Components Technology Code OmniBook XE Replaceable Parts HP Part NumberHP Exchange Part Number DescriptionLCD CVR, ADI 12 TFT LCD CVR, CPT 14 TFT DC/DD PCA, NO-MODEM Layer Accessory Replaceable Parts Order From Cover, Label ProtectQuanta Part Number Order From Quanta Description Part Number Order From Quanta Part Number Reference LCD BKT, CPT 14 TFT DC/DD/DE DOOR, RAM Quanta Part NumberLCD CVR, CPT 14 TFT LCD Bezel Password Removal Policy Hewlett-Packard Display Quality Statement OmniBook XE LCD Guidelines TFTImperfections Not Allowed Type of Imperfection Mechanical Imperfections Details OmniBook XE Technology CodesPart Number P F1753-90004