HP HEWLET VECTRA VA 6/XXX manual If Your PC Has an Audio Problem

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3 Troubleshooting Your PC

If Your PC Has an Audio Problem

No Sound When

Running Any

Applications

No Output from the 8- bit or 16-bit Digitized Sounds

If Your PC Has an Audio Problem

First, check that the output volume is not set to zero. Use the volume control on the front panel. Make sure the headphones are not connected directly to the CD-ROM drive (see the connection information in chapter 1).

Remember also that plugging the headphones into the front panel cuts out sound to the internal speaker and to external speakers connected to the audio Stereo Out jack.

When your PC starts up, the integrated audio interface may have no IRQ or DMA settings. These settings are initialized by software upon startup. Your system files may not have the necessary entries. Run the Setup program to configure the IRQ and DMA settings.

Absence of sound can also be caused by a hardware conflict. Hardware conflicts occur when two or more peripheral devices compete for the same signal lines or channels. Conflicts between your audio interface and another peripheral device might be due to the settings of the I/O addresses, IRQ channel, or DMA channel. To resolve the conflict, change the settings either of the audio interface or of any other ISA accessory in your system.

This might be due to the DMA channel selected. If you hear no output from both the 8-bit and 16-bit digitized sounds, this might be due to an interrupt conflict. Use the HP Setup program or your operating system’s audio control software to change the audio interface’s DMA channel or IRQ setting.

The Volume is Too Low The computer has two output jacks, Stereo Out on the rear of the computer and a headphones jack on the front panel, which provide the same output signal. This is a low-distortion output that cannot drive (without amplification) low-impedance devices such as speakers. If you plug devices with a low-impedance (less than 32 ohms) into the Stereo Out jack or the headphones jack, the volume will be low.

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Contents User’s Guide Page User’s Guide Who this Manual is For Important Safety InformationImportant Ergonomic Information Page Contents Installing an OverDrive Processor Installing MemoryInstalling Mass Storage Devices Installing Accessory BoardsHP Summary Screen and Setup Program If Your PC Has a Software ProblemHewlett-Packard Information Services Setting Up and Using Your PC Try to move it without help When you receive your PC, unpack all the componentsAccessories Unpacking Your PCConnecting the Mouse, Keyboard, Display and Printer Damage your hearing Connecting Audio AccessoriesDown before connecting headphones or speakers Volume control in that positionPC is as class 1 laser product Connecting the Power CablesConnectors are shaped to go in one way only To grounded outletsStarting Your PC Starting and Stopping Your PCStopping Your PC Setting an Administrator Password Setting PasswordsAction Setting a User PasswordPassword, on Then pressAdditional Information and Help Using Power ManagementSetting Up and Using Your PC Additional Information and Help How to Install Accessories In Your PC Accessory part numbers Accessories You Can InstallBefore switching it on again Removing and Replacing the Cover Replacing the Cover after Installing AccessoriesRemoving the Cover Removing the Air Flow Guide Main Memory Modules Installing MemoryStatic electricity can damage electronic components How to Install Accessories In Your PC Installing Memory Upgrading the MGA Millennium Board Memory Switch Use Switch Block to Installing Mass Storage Devices Drives Hard disk driveConfiguration Connections to Data Cables You install additional devicesInstalling an Additional Hard Disk Drive Install any other accessories, before replacing the cover Connectors to use Not attempt to make any adjustment of the laser unitConnectors are shaped to go in one way only. See Internal Connectors on page 20 for more information about whichTo Install a Drive Configuring Accessory Boards with Plug and Play Installing Accessory BoardsConfiguring non-Plug and Play ISA Accessory Boards Installing the Board Secure the board Installing an OverDrive Processor Processor processor Troubleshooting Your PC HP Summary Screen Solving ProblemsIf Your PC Does Not Start Properly Display is Blank and There Are No Error MessagesAction Reference Check all internal cables If you are Unable to Change any Values in SetupIf a Post Error Message is Displayed Clear the configuration Clearing the PC’s Configuration MemoryEnsure that the keyboard is correctly connected If Your PC Has a Hardware ProblemIf Your Keyboard Does Not Work Display Does Not Work ProperlyIf Nothing is Displayed on the Screen If Your Printer Does Not Work If Your Mouse Does Not WorkEnsure that the mouse is correctly connected If the Hard Disk Does Not Work If the Flexible Disk Drive Does Not WorkNot Work If the CD-ROM Drive Has a ProblemCD-ROM Drive is Idle If an Accessory Board Does Not WorkIf You Have Forgotten Your Password If Your PC Has a Software ProblemIf the Date and Time are Incorrect If Your Application Software Does Not WorkIf Your PC Has an Audio Problem Humming Noise From most local stores Changing the BatteryTroubleshooting Your PC Changing the Battery System Board Switches Technical Information Needed for TroubleshootingBus Switch1 180 MHz 200 MHz Off Power ConsumptionHDD Accessories All measurements are in watts rmsIRQs, DMAs, and I/O Addresses Used by Your PC HP Summary Screen HP Summary Screen and Setup ProgramVA/6xxx Copyright 1995 Hewlett-Packard GZ.xx.xx Using the HP Setup ProgramI n Settings and exit the Setup programTroubleshooting Your PC HP Summary Screen and Setup Program Troubleshooting Your PC HP Summary Screen and Setup Program Hewlett Packard Support and Information Services Introduction Service Means of AccessHP SupportPack Your HP Authorized ResellerRegion Phone Number Fax Number HP Support Assistant CD-ROMHP Forum on CompuServe Hewlett-Packard Information ServicesAt the CompuServe ! prompt, type GO HP HP Forum on America Online World-Wide Web URL HP BBS LibraryHP World Wide Web Site Country Number Baud RateCountry/Region Access MethodHP FAXback on Demand-HP First HP Audio Tips USA only HP Automated Support DirectoryEurope Ordering Drivers and Bios on DisketteAustralia Asia Pacific HP Support Services Number is +1 970 Hewlett-Packard Telephone SupportCountry Language Local Number Number Method of Payment Charge Type Lifeline Telephone SupportHP Network Phone-in Support Service NPS Covered Time Available From SummaryAsia Hewlett-Packard Marketing HeadquartersPage Glossary Glossary Index URL Regulatory Information and Warranty Regulatory Information FCC for USA only Noise Declaration for Germany HP Hardware Warranty Customer Responsibilities HP Software Product License Agreement HP Software Product Limited Warranty Your HP Vectra PC Physical Characteristics HP Help Setup HP User’s GuideTroubleshooting and Support HP Help Reference