Manuals / HP / Computer Equipment / Laptop

HP 2503EA CD-ROM and DVD problems, If you can’t boot from a CD or DVD, If a DVD plays erratically

Models: 2521EU 2530AI 2104EA 2102FD 2111EU 2508EU 2505EU 2164EA 2565EA 2561AH 2539AI 2523EU 2526AH 2538AI 2156AE 2126EU 2100 (Intel) 2120EU 2123EA 2116EU 2118EU 2509AT 2511EU 2168EA 2161AD 2175US 2181AF

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If you hear a loud high-pitched whine (feedback) from the speakers

Troubleshooting and Maintenance

Troubleshooting Your Notebook

If you hear a loud high-pitched whine (feedback) from the speakers

•In the Volume Control, try reducing the Master volume by double-clicking the speaker icon in the taskbar.

•In Volume Control, select Options > Properties, and select the microphone option for the playback settings. Then in Volume Control, make sure the microphone is muted.

CD-ROM and DVD problems

If you can’t boot from a CD or DVD

•Make sure the CD or DVD is bootable, such as the QuickRestore System Recovery CD.

•Make sure the CD-ROM/DVD drive is selected as the boot device. See the “Basic Operation” chapter in this guide to change the boot sequence.

•Restart the notebook. Select Start > Turn Off Computer > Restart.

If a DVD plays erratically

•Dirt or smudges can cause a disc to skip. Clean the disc with a soft cloth. If the disc is badly scratched, it will probably have to be replaced.

•If you’re playing the DVD on battery power, try changing the power scheme.

If you get a Region Code error when playing a DVD movie

DVDs can have regional codes embedded in the disc data. These codes prevent DVD movies from being played outside the region of the world in which they are sold. If you get a Region Code error, you are trying to play a DVD intended for a different region.

If the notebook cannot read a CD or DVD

•For a single-sided CD or DVD, make sure the disc is placed in the drive with the label facing up.

•Clean the disc.

•Wait 5 to 10 seconds after closing the tray to give the notebook time to recognize the disc.

Reference Guide 67

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HP 2503EA, 2186AF, 2182US, 2182AT CD-ROM and DVD problems, If you hear a loud high-pitched whine feedback from the speakers

Contents

Compaq Notebook Series Reference Guide Reference Number 2100/2500/N1050v Part Number Compaq Notebook Series Reference Guide First Edition Decembernotebook must be connected to the Telecommunication Network through a Important Safety Informationline cord that meets the requirements of ACA Technical Standard TS008 iv Reference Guide Software Product License AgreementOWNERSHIP. 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 Getting Started with Your Notebook ContentsBasic Operation Troubleshooting and Maintenance Batteries and Power ManagementModem and Network Connections Add-On DevicesIndex Reference InformationReference Guide Getting Started with Your NotebookSeries 2100 and N1050v Identifying Parts of the NotebookIdentifying Parts of the Notebook Identifying Parts of the Notebook Getting Started with Your NotebookReference Guide 13 AC adapter jack 14 Universal serial bus ports USBReset button 4 Reference GuideBattery latch Getting Started with Your NotebookGetting Started with Your Notebook SeriesIdentifying Parts of the Notebook Reference GuideGetting Started with Your Notebook 6 Reference GuideIdentifying Parts of the Notebook 31 Reset button 26 Hard disk drive 27 Battery latchGetting Started with Your Notebook Identifying Parts of the Notebook3 Battery status 1 Power modeStatus Lights 2 Hard disk drive activity1 Caps Lock On Caps Lock is active Identifying Parts of the NotebookStep 1 Insert the battery Setting Up Your NotebookSetting Up Your Notebook Setting Up Your Notebook Step 2 Connect AC powerSetting Up Your Notebook Step 3 Connect a phone lineStep 4 Turn on the notebook Step 5 Set up WindowsSetting Up Your Notebook HintReference Guide Basic OperationOperating Your Notebook Default power settingsOperating Your Notebook To change the boot device To reset the notebookOperating Your Notebook Operating Your Notebook To use the TouchPadBasic Operation To use the function hot keysOperating Your Notebook Reference GuideTo program a One-Touch button To use the One-Touch buttonsOperating Your Notebook To use the ALT GR key To use the Windows and Applications keysOperating 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 create or copy CDs To play DVD moviesUsing CDs or DVDs Securing Your Notebook To set up password protectionTo lock your notebook Securing Your NotebookTo protect against viruses To attach a security cableSecuring Your Notebook To lock the hard disk drive When you enable hard disk drive lock, the current BIOS user passwordhard disk drive Securing Your NotebookTo protect your hard disk drive Taking Care of Your NotebookTo maintain your notebook Taking Care of Your NotebookTo clean your notebook To safeguard your dataTo extend the life of the display Taking Care of Your NotebookReference Guide Batteries and Power ManagementHow the notebook manages power automatically Managing Power ConsumptionManaging Power Consumption information that was not saved will be lostunsaved data if the notebook battery runs down completely Changing timeout settings and creating power schemesManaging Power Consumption To check battery status Using Battery PowerTo respond to a low-battery warning Using Battery PowerTo get the most from your batteries To recharge the batteryUsing Battery Power Unplug the AC adapter when the notebook is not in use Using Battery PowerReference Guide Modem and Network ConnectionsUsing the Modem Using the Modemtelephone line type prior to connecting your phone line Special restrictions in certain countries To change your modem settingsUsing 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 connectionsMaking Wireless Network Connections select models only Creating a New Notebook-to-Notebook Network Ad Hocpurchase a license before using the wireless function To turn wireless communication on and offthe individual wireless functions Turning on communication and making a connectionMaking Wireless Network Connections select models only Turning off communication and ending a connectionTo turn Bluetooth communication on and off Making Wireless Bluetooth Connections select models onlyMaking Wireless Bluetooth Connections select models only authorization before turning on your notebook wireless networkingTurning off Bluetooth communication To prepare for Bluetooth connectionsMaking Wireless Bluetooth Connections select models only Sharing files with another Bluetooth device FTP To send or receive files using BluetoothSending Outlook data to another Bluetooth device OPP Making Wireless Bluetooth Connections select models onlyReference Guide Add-On DevicesConnecting PC Cards Connecting External DevicesConnecting External Devices To insert or remove a PC CardConnecting External Devices Removing a PC Cardaudio recorder To connect an audio deviceof these jacks may damage the notebook replicatorSwitching the display to the external monitor Connecting an external monitorAdjusting monitor resolution and other settings To use an external monitorTo connect an IEEE 1394 device select models only Using dual display modeConnecting External Devices To connect an infrared device select models only Using the infrared portNote select models only Printing to an infrared printerConnecting External Devices To use a port replicator select models onlyConnecting External Devices To dock to the port replicator56 Reference Guide To undock from the port replicatorConnecting External Devices Add-On DevicesTo install a RAM expansion module Installing Additional RAM MemoryInstalling Additional RAM Memory back of the notebook5. Replace the cover 6. Insert the battery Installing Additional RAM Memoryof the notebook To remove a RAM expansion moduleInstalling Additional RAM Memory Installing Additional RAM Memory 60 Reference Guide5. Pull the board out of the connector 6. Replace the cover 7. Insert the batteryTo replace the hard disk drive Replacing the Hard Disk DriveReplacing the Hard Disk Drive Replacing the Hard Disk Drive To replace the hard disk drive holderReplacing the Hard Disk Drive To prepare a new hard disk driveReference Guide Troubleshooting and MaintenanceAudio problems Troubleshooting Your NotebookTroubleshooting Your Notebook If no sound is audibleIf you can’t boot from a CD or DVD CD-ROM and DVD problemsIf you get a Region Code error when playing a DVD movie If you hear a loud high-pitched whine feedback from the speakersIf a DVD movie doesn’t fill the screen Display problemsIf a DVD doesn’t play with two displays If the notebook can’t find Wordpad.exe after inserting a CDIf an external display does not work Hard disk drive problemsIf the notebook hard drive doesn’t spin If the hard disk makes a buzzing or whining noiseInfrared problems Heat problemsIf you have problems with infrared communications If the notebook gets abnormally hotIf the pointer is difficult to control Keyboard and pointing device problemsIf the TouchPad doesn’t work If the TouchPad moves the pointer or cursor while you typeIf the built-in network adapter doesn’t connect to the LAN Local area network LAN problemsIf you can’t browse the Network Neighborhood or My Network Places If you can’t log in to Netware serversModem problems Memory problemsIf a message says you are out of memory If memory doesn’t increase after adding RAMIf the modem dials incorrectly If the modem doesn’t dial or no dial tone is detectedIf the modem dials but doesn’t connect If the modem isn’t detectedIf the modem dials but you can’t hear it If the modem causes an ERROR messageIf the modem connects, but transferred data is bad If the modem doesn’t faxPerformance problems PC Card PCMCIA problemsIf the notebook doesn’t recognize a PC Card If a network PC card stops communicating properlyIf the notebook stops responding Power and battery problemsIf the notebook turns off immediately after it turns on If the notebook keeps beepingIf the Time Remaining for the battery is not correct If the battery doesn’t chargeIf the notebook has a short operating time Troubleshooting Your NotebookIf the notebook doesn’t enter Standby mode as expected Printing problemsIf the notebook doesn’t enter Hibernation as expected If a serial or parallel printer doesn’t printIf a serial mouse doesn’t work Serial, parallel, and USB problemsIf a serial modem doesn’t work properly If the serial or parallel port is not workingIf the notebook doesn’t respond when you turn it on Startup problemsIf the notebook won’t boot from battery power If the notebook won’t boot from the floppy disk driveIf you have problems with wireless 802.11 communication Wireless problemsIf the notebook takes a long time to resume after being suspended Troubleshooting Your NotebookIf your notebook cannot detect a certain Bluetooth device If your notebook cannot detect any Bluetooth devicesIf you cannot connect to a particular notebook on the network If you can connect, but the network is slowTo run the BIOS Setup utility Configuring the NotebookConfiguring the Notebook System Devices Menu Main MenuTroubleshooting and Maintenance Configuring the NotebookSecurity Menu Boot MenuExit Menu 86 Reference GuideConfiguring the Notebook To change video memory settings using BIOS Setup utilityTo replace a damaged QuickRestore System Recovery CD Reinstalling and Updating SoftwareReinstalling and Updating Software Reference Guide Reference InformationModem Reference Information Conexant AT Commands Advanced Users OnlyModem Reference Conexant Modem Reference InformationCommand Conexant AT Commands Advanced Users OnlyReference Information Modem Reference InformationConexant AT Commands Advanced Users Only 92 Reference GuideCommand Reference InformationCommand Conexant AT Commands Advanced Users OnlyReference Information Modem Reference InformationFAX Class ECC Commands94 Reference Guide Conexant AT Commands Advanced Users OnlyConexant AT Commands Advanced Users Only Voice CommandsCommand AT* CommandsSelected Result Codes Conexant Modem Reference Information S-Registers Conexant96 Reference Guide DefaultPower Cords Safety InformationSafety Information Laser Safety Battery SafetySafety Information Mercury Safety LED SafetySafety Information Safety Information Exposure to Radio Frequency RadiationU.S.A Regulatory InformationRegulatory Information Connections to Peripheral DevicesRegulatory Information Applicable 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 detailsDeclaration of Conformity U.S.A CanadaRegulatory Information Regulatory Information European UnionItaly Indoor or outdoor use in a public area requires a user license Regulatory InformationJapan Telecommunications Approval JapanRegulatory Information PTC200 2.11.1 6 & 7 Compliance Testing Functional tests New ZealandReference Information Regulatory InformationInternational RussiaRegulatory Information Reference Information SafetyRegulatory Information Reference GuideReference Guide IndexReference Guide QuickRestore System Recovery112 Reference Guide