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Compaq AMC20493-KT5 If the battery does not charge, If the notebook has a short operating time

Models: AMC20493-KT5

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If the battery does not charge

Troubleshooting and Maintenance

Troubleshooting Your Notebook

If the battery does not charge

•Make sure the AC adapter is fully plugged into the power source and the notebook, and that the light on the adapter is on.

•If you’re using a power strip, remove the AC adapter from the power strip and plug it directly into a wall outlet.

•Make sure the battery is fully installed and locked in place.

•Make sure you’re using only the AC adapter included with your notebook (or other approved adapter that meets the power requirements of the notebook). Do not use a 60-watt, 3.16-amp adapter.

•Move the notebook away from any nearby heat source. Unplug the AC adapter and allow the battery to cool down. If the battery gets too hot, it will not charge properly.

•If available, try another battery and AC adapter.

If the notebook has a short operating time

•Conserve power using any of the suggestions listed in the “Batteries and Power Management” chapter in this guide.

•If you are running an application that has an automatic save feature (such as

MS Word), disable this feature or increase the specified save time to reduce hard disk access.

•If the operating time has gradually become shorter and the battery is more than a year or two old, you may need to replace the battery.

•Heavy modem use can impact battery-operating time.

•PC card use can impact battery-operating time.

•Test and recondition the battery every three months.

If the Time Remaining for the battery is not correct

The Time Remaining is an estimate, not a precise value, and is based on the rate at which the notebook is using power at the moment. This value therefore depends on your current task and assumes that you will continue using power at the same rate until the battery runs out. So, if you check the Time Remaining while the notebook is performing a task requiring a good deal of power (such as reading from a CD or DVD), the value will probably show less time remaining than you really have, since you will probably later switch to tasks that require less power.

Reference Guide 77

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Compaq AMC20493-KT5 manual If the battery does not charge, If the notebook has a short operating time

Contents

Compaq Notebook Series Reference GuideReference Guide Second Edition March Part Number Important Safety Information cord that meets the requirements of ACA Technical Standard TS008Software Product License Agreement iv Reference GuideOWNERSHIP. Customer agrees that he/she does not have any title or ownership of the software, other than ownership of the physical media. Customer acknowledges and agrees that the software is copyrighted and protected under the copyright laws vi Reference Guide Contents Getting Started with Your NotebookBasic Operation Batteries and Power Management Modem and Network ConnectionsAdd-On Devices Troubleshooting and Maintenance Reference Informationx Reference Guide IndexGetting Started with Your Notebook Reference GuideIdentifying Parts of the Notebook Front panel and right panel componentsIdentifying Parts of the Notebook Getting Started with Your Notebook Identifying Parts of the NotebookReference Guide Left panel and back panel components 4 Reference GuideGetting Started with Your Notebook Identifying Parts of the NotebookGetting Started with Your Notebook Identifying Parts of the NotebookReference Guide PC Card and CardBus slot and buttonsBottom panel components 6 Reference GuideReset button Battery latch1 Hard drive 2 Battery latch 3 Mini PCI cover no user parts inside 4 RAM memory cover 5 Docking port select models only 6 Reset buttonGetting Started with Your Notebook Identifying Parts of the Notebook1 Power mode 3 Battery statusStatus lights 2 Hard drive activityIdentifying Parts of the Notebook 1 Caps Lock On Caps Lock is activeSetting Up Your Notebook Step 1 Insert the batterySetting Up Your Notebook Step 2 Connect AC power Setting Up Your NotebookStep 3 Connect a phone line Setting Up Your NotebookStep 5 Set up Windows Step 4 Turn on the notebookSetting Up Your Notebook Basic Operation Reference GuideDefault power settings Operating Your NotebookOperating Your Notebook To reset the notebook To change the boot deviceOperating Your Notebook 3 TouchPad on-off button and indicator light To use the TouchPadOperating Your Notebook To use the function hot keys Basic OperationOperating Your Notebook Reference GuideTo use the One-Touch buttons To program a One-Touch buttonOperating Your Notebook To use the Windows and Applications keys To use the ALT GR keyOperating Your Notebook Using CDs or DVDs Using CDs or DVDsTo insert or remove a CD or DVD could stop responding and you could lose dataTo play DVD movies To create or copy CDsUsing CDs or DVDs To set up password protection Securing Your NotebookTo lock your notebook Securing Your NotebookTo attach a security cable To protect against virusesSecuring Your Notebook When you enable the hard drive lock, the current BIOS user password you match the drive password, you can change the notebook and drivepassword. If you forget the password, you cannot recover your data To lock the hard driveTaking Care of Your Notebook To protect your hard driveTo maintain your notebook Taking Care of Your NotebookTo safeguard your data To clean your notebookTo extend the life of the display Taking Care of Your NotebookBatteries and Power Management Reference GuideManaging Power Consumption How the notebook manages power automaticallyManaging Power Consumption information that was not saved will be lostChanging timeout settings and creating power schemes unsaved data if the notebook battery runs down completelyManaging Power Consumption Using Battery Power To check battery statusUsing Battery Power From the battery status lightTo respond to a low-battery warning To recharge the batteryTo get the most from your batteries Using Battery PowerUsing Battery Power Unplug the AC adapter when the notebook is not in useModem and Network Connections Reference GuideUsing the Modem Using the Modemyour telephone line type prior to connecting your phone line To change your modem settings Special restrictions in certain countriesUsing the Modem Connecting to a Local Area Network LAN Connecting to a Local Area Network LANMaking Wireless Network Connections select models only Making Wireless Network Connections select models onlyConnecting to an existing wireless network To prepare for connectionsCreating a New Notebook-to-Notebook Network Ad Hoc Making Wireless Network Connections select models onlyTo turn wireless communication on and off purchase a license before using the wireless functionthe individual wireless functions Turning on communication and making a connectionTurning off communication and ending a connection Making Wireless Network Connections select models onlyMaking Wireless Bluetooth Connections select models only To turn Bluetooth communication on and offMaking Wireless Bluetooth Connections select models only authorization before turning on your notebook wireless networkingTo prepare for Bluetooth connections Turning off Bluetooth communicationMaking Wireless Bluetooth Connections select models only To send or receive files using Bluetooth Sharing files with another Bluetooth device FTPSending Outlook data to another Bluetooth device OPP Making Wireless Bluetooth Connections select models onlyAdd-On Devices Reference GuideConnecting External Devices Connecting PC CardsConnecting External Devices To insert or remove a PC CardRemoving a PC Card Connecting External DevicesTo connect an audio device audio recorderof these jacks may damage the notebook audio ports on your notebookConnecting an external monitor Adjusting monitor resolution and other settingsTo use an external monitor Connecting External DevicesUsing dual display mode To connect an IEEE 1394 device select models onlyConnecting External Devices Using the infrared port To connect an infrared device select models onlyPrinting to an infrared printer Transferring files through an infrared connectionTo use a port replicator select models only Connecting External DevicesTo dock to the port replicator corresponding port on the port replicator is ignoredConnecting External Devices To undock from the port replicator 56 Reference GuideConnecting External Devices Add-On DevicesInstalling Additional RAM Memory To install a RAM expansion moduleInstalling Additional RAM Memory back of the notebookInstalling Additional RAM Memory 5. Replace the cover 6. Insert the batteryTo remove a RAM expansion module of the notebookInstalling Additional RAM Memory 60 Reference Guide Installing Additional RAM Memory5. Pull the board out of the connector 6. Replace the cover 7. Insert the batteryReplacing the Hard Drive To replace the hard driveReplacing the Hard Drive To replace the hard drive holder Replacing the Hard DriveTo prepare a new hard drive Replacing the Hard DriveTroubleshooting and Maintenance Reference GuideTroubleshooting Your Notebook Audio problemsTroubleshooting Your Notebook If no sound is audibleCD-ROM and DVD problems If you can’t boot from a CD or DVDIf you get a Region Code error when playing a DVD movie If you hear a loud high-pitched whine feedback from the speakersDisplay problems If a DVD movie doesn’t fill the screenIf the notebook can’t find Wordpad.exe after inserting a CD If the notebook is on, but the screen is blankHard drive problems Heat problemsIf the notebook hard drive doesn’t spin If the hard disk makes a buzzing or whining noiseInfrared problems Keyboard and pointing device problemsIf you have problems with infrared communications If the pointer is difficult to controlLocal area network LAN problems If a PS/2 scroll mouse doesn’t workIf the built-in network adapter doesn’t connect to the LAN If you can’t browse the Network Neighborhood or My Network PlacesMemory problems Modem problemsIf a message says you are out of memory If memory doesn’t increase after adding RAMIf the modem doesn’t dial or no dial tone is detected If the modem dials incorrectlyIf the modem dials but doesn’t connect If the modem isn’t detectedIf the modem causes an ERROR message If the modem dials but you can’t hear itIf the modem connects, but transferred data is bad If the modem doesn’t faxPC Card PCMCIA problems Performance problemsIf the notebook doesn’t recognize a PC Card If a network PC card stops communicating properlyPower and battery problems If the notebook stops respondingIf the notebook turns off immediately after it turns on If the notebook keeps beepingIf the battery does not charge If the Time Remaining for the battery is not correctIf the notebook has a short operating time Troubleshooting Your NotebookPrinting problems If the notebook doesn’t enter Standby mode as expectedIf the notebook doesn’t enter Hibernation as expected If a serial or parallel printer doesn’t printSerial, parallel, and USB problems If a serial mouse doesn’t workIf a serial modem does not work properly If the serial or parallel port is not workingStartup problems If the notebook doesn’t respond when you turn it onIf the notebook won’t boot from battery power If the notebook will not boot from the diskette driveWireless problems If you have problems with wireless 802.11 communicationIf you cannot connect to a particular notebook on the network Troubleshooting Your NotebookIf your notebook cannot detect any Bluetooth devices If your notebook cannot detect a certain Bluetooth deviceIf you can connect, but the network is slow Troubleshooting Your NotebookConfiguring the Notebook To run the BIOS Setup utilityConfiguring the Notebook 84 Reference Guide Troubleshooting and MaintenanceConfiguring the Notebook SettingBoot Menu Troubleshooting and MaintenanceConfiguring the Notebook SettingTo change video memory settings using BIOS Setup utility Configuring the NotebookReinstalling and Updating Software To replace a damaged QuickRestore System Recovery CDReinstalling and Updating Software Reference Information Reference GuideConexant AT Commands Advanced Users Only Modem Reference InformationModem Reference Conexant Modem Reference InformationConexant AT Commands Advanced Users Only CommandReference Information Modem Reference Information92 Reference Guide Conexant AT Commands Advanced Users OnlyCommand Reference InformationConexant AT Commands Advanced Users Only CommandReference Information Modem Reference InformationECC Commands FAX Class94 Reference Guide Conexant AT Commands Advanced Users OnlyVoice Commands Conexant AT Commands Advanced Users OnlyCommand AT* CommandsModem Reference Information S-Registers Conexant Selected Result Codes Conexant96 Reference Guide DefaultSafety Information Power cordsSafety Information Battery safety Laser safetySafety Information LED safety Mercury safetySafety Information Exposure to radio frequency radiation Safety InformationRegulatory Information U.S.ARegulatory Information Connections to Peripheral DevicesApplicable certification jack USOC = RJ11C. A plug and jack used to connect this equipment to the premises wiring and telephone network must comply with the applicable FCC Part 68 rules and requirements adopted by the ACTA. A compliant telephone cord and modular plug is provided with this product. It is designed to be connected to a compatible modular jack that is also compliant. See installation instructions for details Regulatory InformationCanada Declaration of Conformity U.S.ARegulatory Information European Union Regulatory InformationRegulatory Information Italy Indoor or outdoor use in a public area requires a user licenseJapan Japan Telecommunications Approval106 Reference Guide Reference InformationNew Zealand PTC200 2.11.1 6 & 7 Compliance Testing Functional testsReference Information Regulatory InformationRussia InternationalRegulatory Information Safety Reference InformationRegulatory Information Reference GuideIndex 110 Reference GuideQuickRestore System Recovery Reference Guide112 Reference Guide