HP 18XL381 manual To replace the system board, reverse these procedures

Page 120

Presario 1800/1800T Series

Models: XL280, XL380, XL381,

and XL390

20.Make sure that the PC card eject button is pushed inward 1, and then lift up the front of the system board and pull it forward to remove it from the chassis 2.

Important: Before replacing the system board, remove all remaining cables.

To replace the system board, reverse these procedures.

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1800 SERIES

REMOVAL & REPLACEMENT 51

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Contents Welcome to the Maintenance & Service Guide MSG Using this Guide Before You Begin Preface Serial Number Product Description Battery Features XL381 XL390 DisplayProcessor Hard DriveFront of Unit # Description # Description# Description DescriptionModel XL3xx Front Bezel Components Left-Side Components Right-Side Components Underneath the Unit Rear Connectors Optional QuikDock Specifications Specification MetricSystem Interrupts Hardware System FunctionAddress System Function Shipping Configuration System I/O AddressesPresario 1800/1800T Series Memory Address System Function System Expansion Total Memory Board Memory MemorySpecificationValue DisplaySpecification 10.0 GB 12.0 GB Specification 15.0 GB 20.0 GB 32.0 GBSpecification AHr Li-ion SpecificationPin Signal Pin AssignmentsTV-Out Composite Video Connector Modem Connector Game Port Connector QuikDock Connector Battery and Power Management Standby Mode Hibernation Mode Off Mode Automatic IndicatorsActivation ManualPower Scheme Always On AC Power Battery PowerPortable Home Laptop Office Desk Default Alarm Settings Setting Low Battery Critical BatteryRebooting After a Lockup Increasing Battery Pack Operating Time Conditioning a Battery Pack Li-ion Enhanced Charge Time Battery PackTroubleshooting Preliminary Steps Clearing the Power-On Password Post Error Messages System Board Failure Probable Cause Recommended ActionSystem Options Not Set Probable Cause XX000YZZ 201-Memory Error Probable Cause Keyboard Error Recommended ActionKeyboard or System Unit Error Probable Cause Diskette Controller Error Probable CausePrimary Hard Drive 0 Failure Probable Cause Hard Drive Controller Probable CauseCheckup Test View System Information Inspect Diagnostic Error Codes Processor Test Error Codes Error Code Description Recommended ActionMemory Test Error Codes Keyboard Test Error Codes Serial Test Error Codes Hard Drive Test Error Codes Description Recommended Action Video Test Error Codes Presario 1800/1800T Series Audio Test Error Codes Presario 1800/1800T Series Troubleshooting without Diagnostics Before Replacing PartsSolving Minor Problems Audio SolutionsBattery Pack/Gauge Solutions Audio Problem Probable Cause SolutionReplace the battery pack Replace the RTC battery Presario 1800/1800T Series CD and DVD Drive Solutions Diskette Drive SolutionsCD or DVD Drive Problem Probable Cause Solutions Diskette Drive Problem Probable Cause SolutionsDisplay Solutions Display Problem Probable Cause SolutionsUsing Fn+F7 or Fn+F8 Replace the display assembly Replace the system board Backlight brightness cannot be adjusted with Fn+F7 or Fn+F8 Hard Drive Solutions Hardware Installation SolutionsHard Drive Problem Probable Cause Solutions Hardware Installation Problem Probable Cause SolutionsKeyboard/Numeric Keypad Solutions Memory SolutionsKeyboard/Numeric Keypad Problem Probable Cause Solutions Memory Problem Probable Cause SolutionsPC Card Solutions PC Card Problem Probable Cause SolutionsPC Card sound effects PC card modem or fax card does not work Power Solutions Power Problem Probable Cause SolutionsPrinter Solutions Printer Problem Probable Cause SolutionsTouchPad/Pointing Device Solutions TouchPad/Pointing Device Problem Probable Cause SolutionsContacting Compaq Support Shipping PreparationRemoval & Replacement Required Tools ZIF Connector Cables Hard Drive Ribbon Cable Diskette Drive Ribbon Cable Keyboard Ribbon CableCD/DVD Ribbon Cable Diskette Drive Ribbon Cable CD/DVD Ribbon Cable Keyboard Ribbon CableSpeaker Assembly Cable CD/DVD Ribbon Cable Speaker Assembly Cable Keyboard Ribbon CablePreparing the Notebook for Disassembly Removal Procedures QuikDockBattery Pack Palmrest Cover with TouchPad Presario 1800/1800T Series Presario 1800/1800T Series Keyboard Button Board Cover Presario 1800/1800T Series Presario 1800/1800T Series Presario 1800/1800T Series Internet Switch Board Presario 1800/1800T Series Heat Sink Heatspreader Modem Hard Drive Disconnect the hard drive data cablePresario 1800/1800T Series Presario 1800/1800T Series LCD DisqPlay Module Processor Presario 1800/1800T Series CD, CD-RW, or DVD Drive Presario 1800/1800T Series Presario 1800/1800T Series Display Panel Assembly Presario 1800/1800T Series Presario 1800/1800T Series Upper CPU Cover Fan Assembly Presario 1800/1800T Series Real Time Clock RTC Battery Presario 1800/1800T Series Diskette Drive Presario 1800/1800T Series Voltage Converter Board Speaker Assembly Presario 1800/1800T Series System Board Presario 1800/1800T Series Presario 1800/1800T Series Presario 1800/1800T Series To replace the system board, reverse these procedures Memory Module Presario 1800/1800T Series Parts Catalog Spare Part ItemsBoards Display Assembly Spare Part ItemMass-Storage Devices Miscellaneous Cable Kit Miscellaneous Plastics Kit Miscellaneous Parts Part Numbers & Availability Alphabetical Spares Listing Disqplay Module, See LCD Indicator Module SO Dimm 171815-001 All 170835-004 All US platforms 191298-003
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