Lenovo S710 manual No audio in Windows, Sound comes from one external speaker only

Page 42

•“No audio in DOS applications or games” on page 36

No audio in Windows

Symptom: No audio in Windows

Actions:

•If you are using powered external speakers that have an On/Off control, verify that the On/Off control is set to the On position and the speaker power cable is connected to a properly grounded, functional ac electrical outlet.

•If your external speakers have a volume control, verify that the volume control is not set too low.

•Double-click the speaker icon in the Windows notification area. A master volume-control window opens. Verify that the Mute settings are not checked and none of the volume settings is set too low.

•Some models have a front audio panel you can use to adjust volume. If you have a front audio panel, verify that the volume is not set too low.

•Verify that your external speakers (and headphones, if used) are connected to the correct audio connector on the computer. Most speaker cables are color-coded to match the connector.

Note: When external-speaker or headphone cables are attached to the audio connector, the internal speaker, if present, is disabled. In most cases, if an audio adapter is installed in one of the expansion slots, the audio function built into the system board is disabled; use the audio jacks on the adapter.

•Make sure that the program you are running is designed for use in the Microsoft Windows operating system. If the program is designed to run in DOS, the program does not use the Windows sound feature and must be configured to use SoundBlaster Pro or SoundBlaster emulation.

•Verify that the audio device drivers are correctly installed. See Microsoft Windows help system for more information.

If these actions do not correct the problem, and you need technical assistance, see “Lenovo Support Web site” on page 29.

An audio disc or AutoPlay-enabled disc does not automatically play when it is inserted into a drive

Symptom: An audio disc or AutoPlay-enabled disc does not automatically play when it is inserted into a drive

Action: See “CD problems” on page 37.

Sound comes from one external speaker only

Symptom: Sound comes from one external speaker only.

Actions:

•Ensure that the speaker cable is inserted completely into the connector on the computer.

•Make sure the cable that attaches the left speaker to the right speaker is securely connected.

•Double-click the speaker icon in the Windows notification area. A master volume-control window opens. Verify that the Balance settings are set correctly.

If these actions do not correct the problem, you might have a failing speaker. Have the speaker serviced. If you need technical assistance, see “Lenovo Support Web site” on page 29.

No audio in DOS applications or games

Symptom: No audio in DOS applications or games

36Lenovo S710 All-In-OneHardware Maintenance Manual

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Contents Lenovo S710 All-In-One Hardware Maintenance Manual Page Lenovo S710 All-In-One Hardware Maintenance Manual First Edition August Copyright Lenovo Contents Appendix A. Notices Important Safety Information About this manualLenovo S710 All-In-OneHardware Maintenance Manual Safety information General safetyElectrical safety Lenovo S710 All-In-OneHardware Maintenance Manual Safety inspection guide Handling electrostatic discharge-sensitive devicesSafety notices multi-lingual translations Grounding requirementsTo Connect To Disconnect ≥18 kg 37 lbs ≥32 kg 70.5 lbs ≥55 kg 121.2 lbs Safety information Perigo Cuidado Para Conectar Para DesconectarPerigo Safety information Lenovo S710 All-In-OneHardware Maintenance Manual Safety information Connexion Déconnexion ≥18 kg 37 lbs ≥32 kg 70.5 lbs ≥55 kg 121.2 lbs Vorsicht Achtung Arbeitsschutzrichtlinien beim Anheben der Maschine beachtenLenovo S710 All-In-OneHardware Maintenance Manual Safety information Pericolo Per collegarsi Per scollegarsiPrestare attenzione nel sollevare lapparecchiatura Lenovo S710 All-In-OneHardware Maintenance Manual Peligro No debe Adopte procedimientos seguros al levantar el equipo Lenovo S710 All-In-OneHardware Maintenance Manual Specifications General informationLenovo Support Web site Lenovo S710 All-In-OneHardware Maintenance Manual Problem determination tips General CheckoutLenovo S710 All-In-OneHardware Maintenance Manual Troubleshooting and diagnostics Basic troubleshootingSymptom Action Accessing Control Panel on the Windows 8 operating system Troubleshooting procedureClick Settings Click Control Panel Troubleshooting Audio problemsNo audio in Windows Sound comes from one external speaker onlyNo audio in DOS applications or games CD problems CD or DVD does not workDVD movie will not play DVD problemsBlack screen instead of DVD video No audio or intermittent audio while playing DVD movieInvalid disc or no disc found message Intermittent problemsKeyboard, mouse, or pointing device problems All or some keys on the keyboard do not workFingerprint reader does not work Mouse or pointing device does not workPointer on the screen does not move smoothly with the mouse Click Hardware and Sound Click Devices and PrintersMonitor problems Wireless keyboard does not workWrong characters appear on the screen Image appears to be flickering Image is discoloredYour computer cannot connect to the network Networking problemsEthernet problems Click Start Control Panel Click Hardware and SoundWireless LAN problem Wake on LAN feature is not workingAdapter stops working for no apparent reason Bluetooth problems Option problemsWireless WAN problem Sound does not come from the Bluetooth headphoneAn option that previously worked does not work now Performance and lockup problemsAn option that was just installed does not work Insufficient free hard disk drive spaceClick Disk Cleanup Click Clean up system files Click Disk CleanupClick Programs Click Turn Windows features on or off Programs and Features area, click the Clean up buttonClick Defragment Now, then click Continue Printer problemsSerial port problems Click OptimizeSoftware problems Software does not work as expectedUSB problems Viewing and changing settings Using the Setup Utility programStarting the Setup Utility program Using passwordsSetting, changing, and deleting a password Power-On PasswordAdministrator Password Enabling or disabling a deviceSelecting a startup device Selecting a temporary startup deviceSelecting or changing the startup device sequence Exiting the Setup Utility program Power Supply Problems Symptom-to-FRU IndexHard disk drive boot error Beep symptomsShort and 1 long beeps Dram memory error Post error codesBeep Symptom FRU/Action Error code Post Error Message Description/ActionMiscellaneous error conditions Message/Symptom FRU/ActionDisplay/Monitor First device network Second device hard diskUndetermined problems Lenovo S710 All-In-OneHardware Maintenance Manual Front connector, control, and indicator locations LocationsRear connector locations Locating major FRUs and CRUs Locating major FRUs and CRUs Number FRU description Self-service CRU Optional-service CRU Looking up FRU informationLocations of the parts and connectors on the system board Locating parts on the system boardRemoving and reinstalling the system stand hinge cover Replacing FRUsRemoving and reinstalling the system stand Removing the system stand hinge coverRemoving the system stand Lenovo S710 All-In-OneHardware Maintenance Manual Removing and reinstalling the Vesa mount bracket Removing the computer coverReplacing the hard disk drive Removing the Vesa mount bracketRemoving the hard disk drive Replacing the optical drive Removing the hard disk drive from the bracketRemoving the optical drive Removing and reinstalling the system board shield Connecting the cable and installing the screwReplacing the microprocessor fan Removing the system board shieldReplacing the heat sink assembly Removing the microprocessor fanSafety, Warranty, and Setup Guide, go to Replacing the microprocessor Opening the retainer to access the microprocessor Removing the microprocessor Replacing the battery Removing the batteryInstalling a new battery Replacing the inverterInstalling or replacing a memory module Removing the screws that secure the inverterRemoving a memory module Replacing the internal speakers Removing the internal speakersReplacing the integrated camera Removing the integrated cameraReplacing the system board Lenovo S710 All-In-OneHardware Maintenance Manual Replacing the LCD panel Disconnect the LCD panel cable from the system board Removing the four screws that secure the LCD panel Replacing the Wi-Fi card Reconnect the LCD panel cable to the system boardRemoving the screw that secures the Wi-Fi card Completing the parts replacement Replacing the USB keyboard or mouseInstalling the computer cover Lenovo S710 All-In-OneHardware Maintenance Manual FRU lists-S710 CRU IDWD XL1000S WD10EZEX-08RKKA0 1TB HDD-LH PIB65F/TAHOE Rear IO-1 China DIP +BKT Foot Holder Pcak W/RUBBER Additional Service Information Updating flashing the Bios from your operating system Recovering from a POST/BIOS update failure Power managementClick Downloads and drivers Automatic configuration and power interface Acpi Bios Automatic Power-on featuresAppendix A. Notices 107Television output notice European conformance CE mark TrademarksIndex 109POST/BIOS update failure
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