HP Book 900 manual Removing the Keyboard, Reassembly Notes

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Reassembly Notes

For the 12-inch display, make sure the LCD module and flex cable have small foam pads present to ensure good connections:

Two pads on the back of the LCD module on the internal connections near the top-left and bottom-left corners. If a pad is missing, replace the LCD module.

çOne pad on the LCD flex cable behind the connector that plugs into the LCD module. If the pad is missing, replace the flex cable.

For the 13-inch display, make sure the power wire is return to its original position. Where the wire passes around the hinge cover opening, it tucks behind the LCD module.

Removing the Keyboard

(HP Authorized Service Providers Only)

Required Equipment

Small Phillips screwdriver.

Probe or tweezers.

Removal Procedure

1.Unplug the ac adapter, if present, and remove the battery.

2.Put your finger above the F8 key and slide the keyboard-screw cover to the left about 3 mm (1/8 inch)—then lift off the cover.

3.Remove the two screws holding the keyboard above the F1 and HOME keys. If your screwdriver has a fat shaft, protect or remove the right hinge cover.

4.Lift up the keyboard tab above the F1 key about 10 mm (1/2 inch). If necessary, free the snap at the center of the back edge near the F8 key.

5.Slide the keyboard toward the display about 5 mm (1/4 inch), then fold the keyboard forward onto the front of the top case.

Warning

Do not touch the heatsink until it has cooled. It could be hot if the computer was running recently.

6.Release the pointing stick flex cable from the motherboard.

7.Release the keyboard flex cable from the motherboard, then remove the keyboard.

2-12 Removal and Replacement

HP OmniBook 900

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Contents HP OmniBook Edition History Contents Figures TablesHP OmniBook Introduction Sources of OmniBook InformationSource Address or NumberOmniBook 900 Models Memory Display Product ComparisonsProcessor OmniBook Features and Operation OmniBook Front ViewActivating Power Modes Turning the OmniBook On and OffKeyboard Status Lights Motherboard Checking the Status of the OmniBookMain Status Lights Motherboard Using Fn Hot Keys Resetting the OmniBookFn Hot Keys Hot KeySystem Memory System ResourcesSystem Interrupts System Input/Output Addresses 100-3FF 10. DMA ChannelsSpecifications 11. OmniBook 900 SpecificationsOnline Reference Guide 12. OmniBook 900 Accessories 900B 900† 4150 2100/7100 Accessory Description OmniBook CompatibilityDocks Replaceable Module Diagram Internal Design13. Functional Structure Docking portRemoval and Replacement Removal Cross-ReferenceRequired Equipment Recommended Screw TorquesScrew Thread Size M1.4 Torque kgfcm Torque lbfinRemoving the Battery Removal ProcedureReassembly Notes Installing a Battery PanelRAM Board Replacement Part Numbers Removing a RAM BoardPart Number Exchange Part NumberExchange Information Hard Disk Drive Replacement Part NumbersRemoving the Hard Disk Drive Removing the Hard Disk Drive Creating a Hibernate Partition Replacement Procedure Replacing Small PartsReplacing Small Parts User-Replaceable Cover, keyboard screw Door, hard disk FootRemoving the LCD Module Display Component CompatibilityRemoving the LCD Module Removing the Keyboard Removing the Keyboard Reassembly Notes Removing the CPU Module Removing the CPU Module Reassembly Notes Removing the Display Assembly Removing the Display Assembly Reassembly Notes Removing the Top Case 10. Removing the Top Case Reassembly Notes Removing the Motherboard or Bottom Case 11. Removing the Motherboard Reassembly Notes Installing a New Serial Number Label Removing the Bios IC 13. Example of Serial Number Label14. Removing the Bios IC Reassembly Notes Removing Other Components Cable, display power Case, display Hinge Latch, display LCD module Removal ProceduresRemoving Display Components Component Bezel, display Cable, display flexRemoving Top Case Components 10. Removing Bottom Case ComponentsSupport, hinge left Removal Procedures Component HeatsinkComponent Support, hinge right Removal Procedures Troubleshooting and Diagnostics Troubleshooting Troubleshooting the ProblemVerifying the Repair Suggestions for Troubleshooting Scope of Diagnostic ToolsStartup Troubleshooting SuggestionsSymptom Power/Battery Call Center SuggestionsRepair Center Likely Causes Repair Center CommentsWhite display Erratic display Symptom Keyboard Pointing stick Call Center SuggestionsSerial/Parallel AC adapter MiscellaneousAccessories Creating a Diagnostic Floppy Disk Diagnostic ToolsOmniBook Diagnostic Program Running the Diagnostic Test Serial number Audio deviceOmniBook Diagnostic Error Codes Code Suggestions System TestsHard Disk Tests Video Tests Acpi Tests Post Messages Power-On Self-TestPost Terminal-Error Beep Codes System battery is dead Replace and run Setup Message DescriptionEntering Setup Sycard PCCtest 450 CardBus Card Optional Lower slot PCT450 -b69 -0Installing the DMI Package Uninstalling the DMI PackageUsing the DMI Interface Desktop Management Interface DMIContents of the DMI Package Bios Setup Utility Running the Bios Setup UtilityBios Setup Menus and Parameters Main Menu DefaultSystem Devices Menu Default Security Menu DefaultPower Menu Boot Menu DefaultOB 900B On OB 900† Off Exit MenuReplaceable Parts Exploded View OmniBook Replaceable Parts IC, Bios Exchange User Part Number ReplExchange Part Number User Repl OmniBook 900B 900† Display Components Assembly-Component Breakdown Accessory Replaceable PartsReplaceable Parts HP OmniBook Description User OmniBook Repl 900B 900† Part Number ReferencePart Number Exchange Yes HP OmniBook Replaceable Parts Replaceable Parts HP OmniBook Part Number Exchange Description User OmniBook Repl B 900†Page Password Removal Policy Reference InformationHewlett-Packard Display Quality Statement Reference Information HP OmniBookOmniBook 900 LCD Guidelines TFT Type of ImperfectionElectrical Imperfections Mechanical ImperfectionsReference Information HP OmniBook Obsolete New Description Part Number Obsolete Repair PartsObsolete Parts Page Page Part Number F1770-90001