If the symptom your computer is experiencing occurred immediately after you installed a new hardware option or new software, do the following before referring to the troubleshooting information:

1.Remove the new hardware option or software. If you must remove the computer cover to remove a hardware option, make sure you review and follow the electrical safety information provided with your computer. For your safety, do not operate the computer with the cover removed.

2.Run the diagnostic program to ensure your computer is operating correctly.

3.Reinstall the new hardware option or software following the manufacturer's instructions.

Select the problem your computer is experiencing from the following list:

“Audio problems” on page 123

“CD problems” on page 124

“DVD problems” on page 125

“Intermittent problems” on page 127

“Keyboard, mouse, or pointing device problems” on page 127

“Monitor problems” on page 129

“Networking problems” on page 130

“Option problems” on page 133

“Performance and lockup problems” on page 134

“Printer problems” on page 136

“Serial port problems” on page 136

“Software problems” on page 137

“USB problems” on page 138

Audio problems

Select your symptom from the following list:

“No audio in Windows” on page 123

“An audio disc or AutoPlay-enabled disc does not automatically play when it is inserted into a drive” on page 124

“Sound comes from one external speaker only” on page 124

“No audio in DOS applications or games” on page 124

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.

Chapter 10. Troubleshooting and diagnostics 123

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Lenovo 10AB000KUS manual Audio problems, No audio in Windows

10AB000KUS specifications

The Lenovo 10AB000KUS is a versatile all-in-one desktop computer designed for both productivity and entertainment. Known for its sleek design and powerful performance, this device caters to a wide range of users, from students to professionals seeking a reliable system for everyday tasks.

At its core, the 10AB000KUS is powered by the latest Intel processors, offering an optimized balance of speed and efficiency. This system includes ample RAM, which ensures smooth multitasking capabilities, allowing users to run multiple applications simultaneously without any lag. The inclusion of solid-state drive (SSD) storage significantly enhances the performance by providing faster boot times and quicker access to files and applications.

One of the key features of the Lenovo 10AB000KUS is its stunning display. The device boasts a high-definition screen that delivers vibrant colors and sharp images, making it ideal for media consumption, gaming, or professional work that requires precise visual details. The narrow bezels further contribute to a modern aesthetic while maximizing the viewing area.

In terms of connectivity, the Lenovo 10AB000KUS is equipped with a variety of ports, including USB Type-C, HDMI, and traditional USB-A ports, allowing users to connect a range of peripherals seamlessly. It also supports Wi-Fi and Bluetooth technology, enabling wireless connections to the internet and other devices, which is essential for contemporary work and home setups.

Another notable feature is the integrated webcam and microphone, making video conferencing easy and efficient, particularly important in today’s remote working environment. Lenovo's commitment to user experience is exemplified by their advanced security features, including a privacy shutter for the webcam, ensuring user privacy remains a priority.

The Lenovo 10AB000KUS is also designed with sustainability in mind. Its energy-efficient components and construction methods reflect Lenovo's initiative to reduce environmental impact, making it a responsible choice for eco-conscious consumers.

In summary, the Lenovo 10AB000KUS combines power, style, and functionality into a single device. With its robust performance, high-quality display, comprehensive connectivity options, and thoughtful design, it stands out in the competitive all-in-one desktop market, meeting the diverse needs of users in both work and play settings. This makes it an excellent choice for anyone looking to invest in a dependable and stylish desktop computer solution.