Compaq 305 specifications Preliminary Steps, Use AC power when running POST, Computer

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Presario 305 Model

Before You Begin

 

Specifications

 

Parts Catalog

 

 

 

 

 

 

 

 

 

 

Removal Sequence

 

Troubleshooting

 

Battery Operations

 

 

 

 

 

 

 

 

 

Index

Product Description

 

Pin Assignments

 

 

 

 

 

 

Preliminary Steps

Use AC power when running POST, Computer

IMPORTANT: Setup, or Computer Checkup. A low battery condition could initiate Hibernation and interrupt

the test.

Before running POST, complete the following steps:

1.If a power-on password has been established, type the password and press Enter. If the password is not known, clear the password.

2.Ensure the hard drive is installed in the computer.

3.Ensure that the battery pack is installed in the computer and the power cord is connected to the computer and plugged into an external AC power source.

4.Turn on the computer.

5.Run Computer Setup.

6.Turn off the computer and its external devices.

7.Disconnect any external devices that you do not want to test. If you want to use the printer to log error messages, leave it connected to the computer.

If the problem only occurs when an external device is connected to the

IMPORTANT: computer, the problem may be related to the external device or its cable. Verify this by running POST with and without the external device connected.

8.Use Compaq Utilities and loopback plugs in the serial and parallel connectors if you plan to test these ports.

When the preliminary steps are completed, you are ready to run POST.

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Contents Index Before You BeginMaintenance and Service Guide Preface SymbolsProduct 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 Unit Bottom of UnitRear Connectors Rear ConnectorsMulti- media Expansion Unit Multi-media Expansion BasePower Management Settings Power Management for WindowsBattery Pack Removing the Battery PackBack to step Multi-media Expansion Unit Removing the Multi-media Expansion unitSerial Number Location Serial Number LocationPreparing for Disassembly Preparing for DisassemblyRemoval and Replacement Procedures Generating StaticRelative Humidity Event 10% 40% 55% Removal Sequence Tool and Software Requirements Plastic Parts Cables and ConnectorsZIF 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 Hard Drive Removing the Hard DriveTo replace the hard drive, reverse the removal procedures Modem Card Removing the Modem CardRemoving the Modem Card RTC Battery Removing the RTC BatteryKeyboard Removing the KeyboardZIF connector Memory Board Removing the Memory BoardSwitch Cover Removing the Switch CoverPosition the computer so the front faces forward Display Panel Removing the Display PanelTo replace display panel, reverse the removal procedures Deck Removing the DeckRemove seven screws T8 from the underside of the unit Insertion Force Connector Back to step Voltage Converter Board Removing the Voltage Converter BoardBack to step Modem Connector Board Removing the Modem Connector BoardPC Card Removing the PC CardPC Card Assembly Removing the PC Card AssemblySystem Board Removing the System Board Before You Begin Specifications Back to step Troubleshooting Preliminary Steps Use AC power when running POST, ComputerRunning Post Power-On Self Test PostClearing the Power-on Password Computer Setup Compaq DiagnosticsComputer Checkup Test View System Information InspectShipping Preparation Contacting Compaq SupportProcedures Diagnostic Error CodesDiagnostic Error Codes USB Troubleshooting Without DiagnosticsSolving Minor Problems ProblemProbable Cause Display Problems Problem Cause Solutions Global Settings tab, the enableInfrared Problems Battery Pack Operating Time Connector Pin Signal Connector Pin AssignmentsIllustrated Parts Catalog System Components Description Part Number System UnitExternal Cables Description Part Miscellaneous Plastics KitScrew Kit Description Miscellaneous PartsSuffix Month Documentation and SoftwarePhysical and Environmental SpecificationsSystem I/O Address Diskette Drive