Dell Latitude E5440 User's Guide Page 70
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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2. If your scanner is listed, Windows recognizes the scanner.
Re-install the scanner driver – See the scanner documentation for instructions.
Sound and Speaker Problems
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in
the Safety and Regulatory Information documents.
NOTE: If you need technical assistance for your speaker, contact the speaker’s manufacturer.
No sound from integrated speakers
Adjust the Windows volume control - Double-click the speaker icon in the lower-right corner of your
screen. Ensure that the volume is turned up and that the sound is not muted. Adjust the volume, bass, or
treble controls to eliminate distortion.
Re-install the sound (audio) driver.
No sound from external speakers
Tasks Description
Ensure that the subwoofers and speakers are
turned on
See the Setup diagram supplied by the speaker’s
manufacturer. If your speakers have volume
controls, adjust the volume, bass, or treble to
eliminate the distortion.
Adjust the Windows volume control Click or double-click the speaker icon at the
lower-right corner of your screen. Ensure that the
volume is turned up and the sound is not muted.
Disconnect the headphones from the headphone
connector
Sound from the speakers is automatically disabled
when the headphone is connected to the
computer’s front-panel headphone connector.
Test the electrical outlet Ensure that the electrical outlet is working by
testing it with another device, such as a lamp.
Eliminate possible interference Turn off nearby fans, fluorescent lights, or halogen
lamps to check for interference.
Re-install the audio driver Ensure you have the latest audio driver for your
operating system.
Run the diagnostics
NOTE: The volume control in some MP3 players overrides the Windows volume setting. If you have
been listening to MP3 songs, ensure that you did not turn the player volume down or off.
No sound from headphones
Check the headphone cable connection - Ensure that the headphone cable is inserted into the
headphone connector.
70
- Dell Desktop and Notebooks 1
- User's Guide 1
- Notes, Cautions, and Warnings 2
- Contents 3
- Introduction 9
- Selecting the Product 10
- Choosing the Product 10
- Quick Start Guide 13
- Product Information 14
- My Dell Support Center 14
- Using The Battery 16
- Conserving Battery Power 17
- Storing a Battery 17
- Checking the Battery Charge 17
- Using the Display 19
- Windows 7 20
- Windows 8 20
- Overview 20
- Playing Multimedia 22
- Connecting to a Network 23
- Area Network (WLAN) 24
- Connecting to a WLAN 25
- Connect to a Device 27
- Using An External Monitor 28
- Setting Up Your Printer 29
- Wireless Printing 29
- Drives and Ports 31
- 5.1 Audio 32
- 7.1 Audio 32
- Network Connectors 33
- IEEE 1394 33
- Power Management Modes 35
- Keyboard and Touchpad 37
- Changing the Trackstick Cap 38
- Security 39
- Passwords 40
- Using a Hard-Drive Password 41
- Trusted Platform Module (TPM) 42
- Identifying Drivers 44
- Reinstalling Drivers 45
- My Dell Downloads 47
- Smart Settings 49
- Dell Digital Delivery 50
- Windows Live Essentials 2011 51
- Dell Webcam Manager 52
- PC's) 53
- System Setup 54
- Updating the BIOS 55
- System and Setup Password 56
- Disabling a System Password 57
- Troubleshooting Your Computer 58
- Scan the computer for Spyware 59
- Error Messages 60
- Lockups and Software Problems 65
- A solid blue screen appears 66
- Other software problems 66
- Network Problems 67
- Power Problems 67
- Docking Power Considerations 68
- Printer Problems 69
- Scanner Problems 69
- Sound and Speaker Problems 70
- Touchpad or Mouse Problems 71
- Video and Display Problems 71
- Self-Help Options 74
- Contacting Dell 74
- Microsoft Knowledge Base 74
- Table 4. Windows Keywords 75
- AutoTech Service 77
- Dell Connect / GoToAssit 78
- Problems With Your Order 78
- Before You Call 79
- Travel Tips 80
- Pro Support 81
- Cleaning Your Computer 82
- Cleaning an Optical Mouse 83
- Optical Disk 83
- Traveling With Your Computer 84
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