Sony PCG-SR27K service manual Check the volume setting in the audio mixer

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My CD-ROM drive is not playing my CD properly. Make sure the label of the disc is facing up.
If the disc requires software, make sure the software is installed according to the manufacturer’s instructions.
A dirty or damaged disc may cause the notebook to stop responding while it tries to read the disc. If necessary, restart the notebook, remove the disc, and then check it for dirt or damage.
If you are using an optional DVD Rom Drive, and can see video but not hear audio, check all of the following:
Check that your DVD-ROM drive does not have the mute setting enabled.
Click Update in the System Properties window.
Verify that Delete From All Settings is selected and press OK.
Click Delete. The Confirmation window will appear.
Double click Disk Drive and confirm that GENERIC NEC FLOPPY DISK is shown.
The System Properties dialog box appears. Click the Device Manager tab.
Double-click Floppy Disk Controller, then click Standard Floppy Disk Controller.
Click Start, point to Settings, point to Control panel, then click System.
My (optional) floppy disk drive icon doesn’t appear even though it is connected.
Verify that the floppy disk is properly inserted into the floppy disk drive.
Troubleshooting Drives, PC Cards, and Peripheral Devices
Troubleshooting Drives, PC Cards, and Peripheral Devices
My (optional) floppy disk drive can not write to a floppy disk.
If the floppy disk is write-protected, disable the write-protect feature or use a floppy disk that is not write-protected.

Check the volume setting in the audio mixer.

If you are using external speakers, check the volume settings, then check the connections between your external speakers and the notebook.

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Contents PCG-SR27/SR27K Service and Inspection Precautions Table of Contents Chapter Removal Removal HDD Frame Assy, DC Fan, Cooling CNX-107 Board Display Assy LCD Section Made by TS Chapter Self Diagnostics PCG-SR Series Block Diagram Chapter Frame Harness Diagram Chapter Exploded Views and Parts List Main Section 57 K LCD Section Made by TS Vaio Notebook Quick Start Contents Index TroubleshootingWelcome FeaturesDocuments Unpacking Your NotebookSoftware CDs Other Recovery CDsErgonomic Guidelines Setting Up Your Notebook Handling Your Notebook Handling the LCD Screen Cleaning Your NotebookOn Moisture Condensation Power Indicator Microphone Battery Indicator LCD Screen Locating Controls and ConnectorsKeyboard Battery Connector Right Using the AC Adapter Connecting a Power SourceBattery Lock Lever Battery Release Lever To Insert the Battery Pack Using Battery PowerMeaning To Charge the Battery PackSingle blink Double blinkAC Adapter To Remove the Battery PackBattery Pack Hardware TemperatureConnecting a Power Source Starting Your Notebook Power SwitchRegistering Your Notebook If you are unable to shut down your notebook Shutting Down Your NotebookStandby Mode Normal ModeTo activate Standby mode To return to normal modeTo activate Hibernate mode Hibernate ModePower Saving Modes Vaio Notebook Quick Start Overview About the Software on Your NotebookArcSoft PhotoPrinter 2000 Pro Windows Me only Media Bar DVD Player OpenMG Jukebox Vaio Support Agent Using Your Recovery CDs Application, Driver, and System Recovery CDsUsing the Application Recovery CDs To use the Application Recovery CDs Using the Driver Recovery CDsTo Use the Driver Recovery CDs To repair software applications using Vaio Support AgentTo use the System Recovery CDs Using the System Recovery CDsIf your notebook does not start from the Recovery CD Recovering Microsoft WordSoftware Support Information CompuServe 2000 CompuServe Interactive Services, IncAmerica Online America Online, Inc Netscape Communicator Netscape Communications CorpPhotoPrinter 2000 Pro ArcSoft, Inc Sony Service CenterQuicken 2001 BasicIntuit Inc Real Jukebox Real NetworksVaio Notebook Quick Start Vaio Support Agent Vaio Notebook User GuideSony PC Support Sony Fax-on-Demand Calling Sony Customer SupportVaio Support Agent Using the Quick Fix WizardVaio Support Agent Common Solutions dialog box 1st level Using Common SolutionsCommon Solutions dialog box 2nd level Using Support Central Support Central Registration Support Central Current Issues About Automatic Updates Update Notification Vaio Support Agent Properties Vaio Notebook Quick Start My notebook does not start Troubleshooting Your NotebookMy notebook starts, but my system doesn’t start properly My notebook stops responding or does not shut down Power Management setting is not responding Want to change the video resolution of my display Troubleshooting the LCD ScreenSound of my notebook’s fan is too loud My LCD screen is blankPointer does not move while using the touchpad or mouse Troubleshooting the Mouse and TouchpadMy mouse does not work My touchpad does not work properlyCheck the volume setting in the audio mixer My optical drive tray does not open My PC card does not work Troubleshooting SoftwareMy software program stops responding or crashes Can not use the DVgate softwareMy modem does not work Troubleshooting the ModemMy modem connection is slow My speakers have no sound Troubleshooting AudioMy microphone does not work Cannot print Troubleshooting the PrinterIndex Vaio Notebook Quick Start Index Page Vaio Notebook Update Notice Page PCG-SR33 List of PCG-SR Series As of July PCG-SR33K List of PCG-SR Series As of October List of PCG-SR Series As of June Revision History