Compaq 305 specifications Troubleshooting Without Diagnostics, Usb

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Presario 305 Model

Before You Begin

 

Specifications

 

Parts Catalog

 

 

 

 

 

 

 

 

 

 

Removal Sequence

 

Troubleshooting

 

Battery Operations

 

 

 

 

 

 

 

 

 

Index

Product Description

 

Pin Assignments

 

 

 

 

 

 

Troubleshooting Without Diagnostics

This section provides information about how to identify and correct some common hardware, memory, and software problems. It also explains several types of common messages that may be displayed on the screen. The following pages contain troubleshooting information on these

topics:

Audio

Power

Hard drive

Memory

Diskette/Diskette drive

Keyboard/Numeric keypad

Battery/Battery gauge

Printer

Hardware Installation

PC Card

Display

USB

CD or DVD drive

Touch Pad

Modem

Since symptoms can appear to be similar, carefully match the symptoms of the computer malfunction against the problem description in the Troubleshooting tables to avoid a misdiagnosis.

WARNING: To avoid a potential shock hazard during troubleshooting procedures, disconnect all power sources before removing the keyboard cover or the display bezel.

Before Replacing Parts

When troubleshooting a problem, check the following items for possible solutions before replacing parts:

Verify that cables are connected properly to the suspected defective parts.

Verify that all required device drivers are installed.

Verify that all printer drivers have been installed for each application.

Obtaining Update Information with Info Messenger

Compaq Info Messenger allows you to set a customized search of the Compaq Web site. By registering for this utility, you can stay up to date with software and hardware information specific to your system.

To access Compaq Info Messenger, go to www.compaq.com and select Info Messenger.

To register, follow the instructions on the Info Messenger page. When your registration is complete, you can

implement your customized search whenever you prefer from the Info Messenger page.

set Info Messenger to send you the information by email as it becomes available.

Info Messenger will also inform you if there are updates to the system ROM for your computer.

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Contents Before You Begin IndexMaintenance and Service Guide Symbols PrefaceProduct Description Models and Features Models and FeaturesUpper Unit Components Upper Unit ComponentsFront Components Front ComponentsLeft Side Components Left Side ComponentsRight Side Components Right Side ComponentsBottom of Unit Bottom UnitRear Connectors Rear ConnectorsMulti-media Expansion Base Multi- media Expansion UnitPower Management for Windows Power Management SettingsRemoving the Battery Pack Battery PackBack to step Removing the Multi-media Expansion unit Multi-media Expansion UnitSerial Number Location Serial Number LocationPreparing for Disassembly Preparing for DisassemblyGenerating Static Removal and Replacement ProceduresRelative Humidity Event 10% 40% 55% Removal Sequence Tool and Software Requirements Cables and Connectors Plastic PartsZIF Connectors Display Panel Cable Location Inverter Cable Location Audio Cable Location Touchpad Cable Location Fan Cable Location Light Board Cable Location Speaker Cable Location Battery Cable Location Removing the Hard Drive Hard DriveTo replace the hard drive, reverse the removal procedures Removing the Modem Card Modem CardRemoving the Modem Card Removing the RTC Battery RTC BatteryRemoving the Keyboard KeyboardZIF connector Removing the Memory Board Memory BoardRemoving the Switch Cover Switch CoverPosition the computer so the front faces forward Removing the Display Panel Display PanelTo replace display panel, reverse the removal procedures Removing the Deck DeckRemove seven screws T8 from the underside of the unit Insertion Force Connector Back to step Removing the Voltage Converter Board Voltage Converter BoardBack to step Removing the Modem Connector Board Modem Connector BoardRemoving the PC Card PC CardRemoving the PC Card Assembly PC Card AssemblyRemoving the System Board System BoardBefore You Begin Specifications Back to step Troubleshooting Use AC power when running POST, Computer Preliminary StepsPower-On Self Test Post Running PostClearing the Power-on Password Compaq Diagnostics Computer SetupComputer Checkup Test View System Information Inspect Contacting Compaq Support Shipping PreparationDiagnostic Error Codes ProceduresDiagnostic Error Codes Troubleshooting Without Diagnostics USBProblem Solving Minor ProblemsProbable Cause Display Problems Global Settings tab, the enable Problem Cause SolutionsInfrared Problems Battery Pack Operating Time Connector Pin Assignments Connector Pin SignalIllustrated Parts Catalog System Components System Unit Description Part NumberExternal Cables Miscellaneous Plastics Kit Description PartScrew Kit Miscellaneous Parts DescriptionDocumentation and Software Suffix MonthSpecifications Physical and EnvironmentalSystem I/O Address Diskette Drive