HP Pro 4300 manual Power Switch Assembly

Page 96

Power Switch Assembly

The power switch assembly is located on the bottom corner of the inside of the front bezel. You must remove the front bezel from the computer to remove the power switch assembly from the bezel.

Figure 6-72Power switch assembly location

To remove the power switch assembly:

1.Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 33).

2.Remove the center access panel (see Hinge Cover Panel on page 34).

3.Remove the memory access panel (see Memory Access Panel on page 36).

4.Remove the drive access panel (see Drive Access Panel on page 38).

5.Remove the stand (see Stand on page 61).

6.Remove the optical drive (see Optical Drive on page 40).

7.Remove the top panel (see Top Panel on page 58).

8.Remove the rear cover (see Rear Cover on page 62).

9.Remove the front bezel (see Front Bezel on page 84.

10.Pull the two tabs (1) toward the bottom of the bezel, and then rotate the assembly up and off the bezel (2).

11.Pull the light pipe out of its slot (3).

Power Switch Assembly 89

Image 96
Contents Maintenance & Service Guide Maintenance & Service Guide About This Book IiiTable of contents Sata Data Cable Smart ATA Drives Hard Drive Capacities 100 103105 110All-in One Models 152 ViiiProduct Features OverviewPage Front Components 1Front ComponentsComponent Side Components 2Side ComponentsRear Components 3Rear ComponentsAdjusting Tilt 5Adjusting Tilt Product FeaturesActivating and Customizing the Software Activating and customizing the software in WindowsActivating the Windows operating system Downloading Windows 7 updates Installing or upgrading device driversCustomizing the monitor display Downloading Windows 8 updates Click Settings Change PC SettingsComputer Setup F10 Utility Computer Setup F10 UtilitiesUsing Computer Setup F10 Utilities Computer Setup F10 Utilities1Computer Setup F10 Utility Computer Setup-File Computer Setup F10 Utility2Computer Setup-File Computer Setup-Storage 3Computer Setup-StorageSata Defaults OptionDescriptionRemovable Media Boot Storage Options ESATA PortSata Emulation Max eSATA SpeedBoot Order Shortcut to Temporarily Override Boot OrderDPS Self-Test Computer Setup-Security 4Computer Setup-SecurityNetwork Boot Master Boot RecordSlot Security System IDsSystem Security Secure Boot ConfigurationDriveLock Security Computer Setup-Power 5Computer Setup-PowerComputer Setup-Advanced 6Computer Setup-Advanced for advanced usersOption Heading Power-On Options Bios Power-On Onboard DevicesBus Options Device OptionsRecovering the Configuration Settings VGA ConfigurationAMT Configuration Serial ATA Sata Drive Guidelines and Features Serial ATA Hard Drive CharacteristicsSata Hard Drives Sata Hard Drive CablesSmart ATA Drives Hard Drive CapacitiesRoutine Care and Disassembly Preparation Electrostatic Discharge Information Generating StaticPreventing Electrostatic Damage to Equipment Relative Humidity Event 55% 40% 10%Personal Grounding Methods and Equipment Grounding the Work AreaRecommended Materials and Equipment Static Shielding Protection LevelsOperating Guidelines General Cleaning Safety Precautions Cleaning the Computer CaseCleaning the Keyboard Routine CareService Considerations Cleaning the MonitorCleaning the Mouse Tools and Software RequirementsCables and Connectors Lithium Coin Cell BatteryHard Drives Removal and Replacement Procedures All-in One AIO Chassis Preparing to Disassemble the ComputerHinge Cover Panel Page Memory Access Panel Page Drive Access Panel Page Optical Drive Page Hard Drive 16Removing the hard drive mounting screws Hard Drive Slide the hard drive out of the cage Memory 1Identifying Sodimm locations Location System Board Label ChannelPage Page Replacing the Battery Lift the battery out of its holder 26Removing and replacing a coin cell battery Type Heat Sink Cover Lift the cover from the computer Heat Sink Thermal Module Page Processor Remove the heat sink see Heat Sink Thermal Module onPage Top Panel Webcam Module Page Stand Rear Cover Fan 44 Fan screws Converter Board CMI Sidekey Board Disconnect the cable from the sidekey board System Board Shield 52System board shield location System Board ShieldPage Wlan Module Page Speakers Page Stand bracket Page System Board Updating Smbios Information Press F10 to enter Computer Setup Setup Field Name Comment LabelSystem Board Hard Drive and Optical Drive Cables and Connectors Page Display Cable Page Front Bezel Lift the main system bracket assembly off the front bezel Display PanelPage Page Samsung Power Switch Assembly Page Troubleshooting Without Diagnostics Safety and Comfort Before You Call for Technical SupportHelpful Hints Page Solving General Problems Troubleshooting Without Diagnostics1Solving General Problems Computer date and time display is incorrect Cause SolutionSolving General Problems There is no sound or sound volume is too low Cause SolutionCannot remove computer cover or access panel Cause Poor performance Cause SolutionAll apps icon Under Windows System, click RunCause Solution Solving Power Problems 2Solving Power ProblemsPower supply shuts down intermittently Cause Solution Solving Power Problems Solving Hard Drive Problems 3Solving Hard Drive ProblemsSolving Hard Drive Problems Computer seems to be locked up Cause Solution Solving Media Card Reader Problems Solving Media Card Reader Problems4Solving Media Card Reader Problems Can not write to the media card CauseComputer’s software is used to safely eject the card Solving Display Problems Solving Display Problems5Solving Display Problems Dim characters Cause Solution Image is not centered Cause Solution No Connection, Check Signal Cable displays on screen CauseSelect ImageControl/ Horizontal Position or Vertical Out of Range displays on screen Cause Certain typed symbols do not appear correct Cause Solving Audio Problems 6Solving Audio ProblemsSolving Audio Problems Sound from headphones is not clear or muffled CauseThere is no sound or sound volume is too low Cause Line-in jack is not functioning properly CauseSolving Printer Problems 7Solving Printer ProblemsPrinter will not print Cause Solution Printer will not turn on Cause SolutionSolving Printer Problems Printer prints garbled information Cause SolutionSolving Keyboard and Mouse Problems 8Solving Keyboard ProblemsSolving Keyboard and Mouse Problems 9Solving Mouse ProblemsSolving Hardware Installation Problems 10Solving Hardware Installation ProblemsControl Panel , and then select Device Manager Security USB SecuritySolving Hardware Installation Problems Computer will not start Cause SolutionSolving Network Problems 11Solving Network ProblemsSolving Network Problems Network status link light never flashes Cause SolutionManager Diagnostics reports a failure Cause Solving Memory Problems 12Solving Memory Problems Out of memory error Cause SolutionMemory count during Post is wrong Cause Solution Insufficient memory error during operation Cause SolutionSolving Processor Problems Solving CD-ROM and DVD ProblemsSolving Processor Problems 13Solving Processor ProblemsSecurity Network Boot Movie will not play in the DVD drive Cause SolutionSolving USB Flash Drive Problems Cannot eject compact disc tray-load unit Cause15Solving USB Flash Drive Problems USB flash drive not found identified Cause SolutionSystem will not boot from USB flash drive Cause Solution Solving Front Panel Component Problems Solving Internet Access ProblemsSolving Front Panel Component Problems Ports are set to Enabled in Security USB SecuritySelect Start Control Panel Click Internet OptionsSolving Software Problems Solving Software ProblemsTroubleshooting Without Diagnostics Contacting Customer Support HP PC Hardware Diagnostics Why run HP PC Hardware DiagnosticsHow to access and run HP PC Hardware Diagnostics Downloading HP PC Hardware Diagnostics to a USB device Backup and Recovery Restoring and recovering in WindowsSystem Restore System RecoverySystem Recovery when Windows is responding Backup and RecoverySystem Recovery when Windows is not responding Creating recovery media Using recovery media Backup and recovery in Windows Backing up your informationPerforming a system recovery Backup and recovery in Windows 8Follow the on-screen instructions Using f11 recovery tools Post Error Messages Post Error Messages Post Numeric Codes and Text Messages1Numeric Codes and Text Messages Control panel message Description Recommended actionInterpreting Post Diagnostic Front Panel LEDs 2Diagnostic Front Panel LEDs and Audible CodesActivity Blink Possible Cause Recommended Action Password Security and Resetting CmosEstablishing a Setup or Power-on Password Establishing a Setup or Power-on PasswordResetting the Setup and Power-on Password Resetting Cmos Power Cord Set Requirements Japanese Power Cord RequirementsGeneral Requirements Country-Specific Requirements Country Accrediting AgencySpecifications Appendix B SpecificationsTable B-1Specifications All-in One ModelsPower Supply Max Operating PowerAll-in One Models Index CmosSata
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