Contents

About this manual
Chapter 1. Read this first: Important safety information
- General safety
- Electrical safety
- Safety inspection guide
- Handling electrostatic discharge-sensitive devices
- Grounding requirements
- Safety notices
Chapter 2. Environment and electrical input
Chapter 3. General Checkout
Chapter 4. Using the Setup Utility program
- Starting the Setup Utility program
- Enabling or disabling a device
- Enabling or disabling the Automatic Power On features
- Using BIOS passwords
  - Setup Utility program password types
  - Password considerations
  - Setting, changing, and deleting a password
- Selecting a startup device
  - Changing the startup device sequence permanently
  - Selecting a temporary startup device
- Exiting the Setup Utility program
Chapter 5. Symptom-to-FRU Index
- Hard disk drive boot error
- Power Supply Problems
- POST error codes
- Undetermined problems
Chapter 6. Hardware locations
- Overview
- Major FRUs and CRUs
- Parts on the system boards
Chapter 7. Installing or replacing hardware
- Handling static-sensitive devices
- Installing or replacing hardware
  - Removing the computer stand base
  - Removing the rear cover
  - Replacing the speakers
  - Replacing the hard disk drive
  - Replacing the optical drive
  - Replacing the middle frame
  - Replacing the fan
  - Replacing the system board frame
  - Replacing the hard disk drive cable
  - Replacing the heat sinks
  - Replacing the Wi-Fi card
  - Replacing the antennas
  - Replacing the memory module
  - Replacing the coin-cell battery
  - Replacing the M.2 solid-state drive
  - Replacing the microprocessor (for selected models)
  - Replacing the system board
  - Replacing the power switch board
  - Replacing the camera module
  - Replacing the mount bracket and optical drive cable
  - Completing the parts replacement
Chapter 8. Additional Service Information
Trademarks

Lenovo IdeaCentre A340-22AST Hardware Maintenance Manual

Lenovo IdeaCentre A340-22AST Computer manual cover

Pages 57

Year 2019

Language(s)

of 57

Hardware Maintenance Manual

57 pages

User Guide

53 pages

Lenovo IdeaCentre A340-22AST Computer Specification

The Lenovo IdeaCentre A340-22AST is an all-in-one desktop computer designed for both productivity and entertainment. It features a sleek and compact design with a 21.5-inch Full HD display, providing vibrant visuals and an immersive viewing experience. Powered by an AMD A9 processor, the A340-22AST delivers sufficient performance for everyday tasks such as web browsing, document editing, and media consumption. The integrated AMD Radeon R5 graphics ensure smooth video playback and casual gaming capabilities.

This model comes equipped with 4GB of DDR4 RAM, which supports basic multitasking needs, and a 1TB HDD, offering ample storage space for files, applications, and media. Connectivity options include multiple USB ports, HDMI output, and a 3-in-1 card reader, facilitating easy connection to peripherals and external displays. Additionally, it includes built-in Wi-Fi and Bluetooth support for seamless wireless networking and peripheral connectivity.

The A340-22AST is designed with an adjustable stand to enhance ergonomic comfort and optimize viewing angles. It also features a webcam with a privacy shutter, providing security and peace of mind when the camera is not in use. The computer runs on Windows 10 Home, offering a familiar and user-friendly interface with access to a wide range of applications and services.

In summary, the Lenovo IdeaCentre A340-22AST is a versatile all-in-one desktop that balances performance, storage, and connectivity within a compact design, making it suitable for home or small office use. It offers a reliable computing solution for users seeking a space-saving device that does not compromise on essential functionalities.

Lenovo IdeaCentre A340-22AST Computer F.A.Q.

How do I connect my Lenovo IdeaCentre A340-22AST to a Wi-Fi network?

To connect to a Wi-Fi network, click on the network icon in the taskbar, select the desired network from the list, and enter the password if prompted.

What should I do if my Lenovo IdeaCentre A340-22AST won't turn on?

First, ensure the power cable is securely connected. Check for any power indicator lights. If the issue persists, try a different power outlet or reset the power supply.

How can I perform a factory reset on my Lenovo IdeaCentre A340-22AST?

To perform a factory reset, go to Settings > Update & Security > Recovery. Select "Get started" under Reset this PC and follow the prompts to complete the process.

Why is my Lenovo IdeaCentre A340-22AST running slow, and how can I fix it?

Check for unnecessary startup programs and disable them via Task Manager. Ensure your system is up-to-date and perform a disk cleanup to remove temporary files.

How do I upgrade the RAM on my Lenovo IdeaCentre A340-22AST?

To upgrade RAM, turn off the computer, disconnect all cables, and remove the back panel. Insert the new RAM module into the slot, ensuring it's securely in place, then reassemble the computer.

What ports are available on the Lenovo IdeaCentre A340-22AST?

The Lenovo IdeaCentre A340-22AST includes USB 3.1 ports, HDMI-out, an Ethernet port, and audio jacks for headphones and a microphone.

How do I update drivers on my Lenovo IdeaCentre A340-22AST?

Visit the Lenovo Support website, navigate to the Drivers & Software section, and enter your product details. Download and install the latest drivers for your device.

What can I do if the screen on my Lenovo IdeaCentre A340-22AST is flickering?

Check the display settings and ensure the refresh rate is set correctly. Update the graphics driver and verify that all cables are securely connected.

How can I clean the screen of my Lenovo IdeaCentre A340-22AST safely?

Turn off the computer and use a microfiber cloth slightly dampened with water or a screen cleaner. Gently wipe the screen in a circular motion to avoid scratches.

How do I adjust the display settings on my Lenovo IdeaCentre A340-22AST?

Right-click on the desktop and select Display settings. From here, you can adjust resolution, orientation, and scale to suit your preferences.