dynabook TECRA A40-G User Manual

Connecting the AC adaptor
Attach the AC adaptor when you want to charge the battery or operate from
AC power. The battery pack must be charged before you can operate from
battery power.
The AC adaptor can automatically adjust to any voltage ranging from 100
volts to 240 volts and to a frequency of either 50 hertz or 60 hertz, enabling
you to use this computer in almost any country/region. The adaptor
converts AC power to DC power and reduces the voltage supplied to this
computer.
Always use the AC adaptor that was included with your computer, or
use AC adaptors specified by Dynabook to avoid any risk of fire or
other damage to the computer. Use of an incompatible AC adaptor
might cause fire or damage to the computer possibly resulting in
serious injury. Dynabook assumes no liability for any damage caused
by use of an incompatible adaptor.
Never plug the AC adaptor into a power source that does not
correspond to both the voltage range and the frequency specified on
the regulatory label of the unit. Failure to do so might result in a fire or
electric shock, possibly resulting in serious injury.
Always use or purchase power cables that comply with the legal
voltage and frequency specifications and requirements in the country
of use. Failure to do so might result in a fire or electric shock, possibly
resulting in serious injury.
The supplied power cord conforms to safety rules and regulations in
the region the computer is bought and should not be used outside this
region. For use in other regions, buy power cords that conform to
safety rules and regulations in the particular region.
Do not use a 3-pin to 2-pin conversion plug.
When you connect the AC adaptor to the computer, always follow the
steps in the exact order as described in this User’s Manual. As a
general safety precaution, avoid touching any metal parts.
Never place your computer or AC adaptor on a wooden surface,
furniture, or any other surface that might be marred by exposure to
heat since the computer base and the surface of the AC adaptor
increase in temperature during normal use.
Always place your computer or AC adaptor on a flat and hard surface
that is resistant to heat damage.
Refer to the enclosed Instruction Manual for Safety and Comfort for
detailed precautions and handling instructions.
Depending on the model you purchased, the following AC adaptor might be
provided.
DC IN 19V jack connection type
USB Type-C™ port connection type
User's Manual
2-3

dynabook TECRA A40-G Specifications

General

Operating System	Windows 10 Pro
RAM	Up to 32GB DDR4
Storage	256GB SSD
Display	14" Full HD (1920 x 1080)
Graphics	Intel UHD Graphics
Dimensions	19.9 mm
Ports	HDMI
Wireless	Wi-Fi 6 (802.11ax), Bluetooth 5.0

Summary

Chapter 1 Legal, Regulatory, and Safety

Regulatory Information

Provides essential compliance details and potential variations for regulatory requirements.

General Precautions

Outlines important safety measures to prevent injury and computer damage during operation.

Safety Icons

Explains the meaning of various safety icons used throughout the manual to convey hazard information.

Chapter 2 Getting Started

Equipment checklist

Lists all hardware and documentation items included with the computer for user verification.

Using your computer for the first time

Guides users through initial setup and safe usage, emphasizing ergonomic considerations.

System Recovery

Explains how to create recovery media and restore the system in case of issues.

Chapter 3 The Grand Tour

Left side

Identifies and describes ports and features located on the left side of the computer.

Right side

Identifies and describes ports and features located on the right side of the computer.

Internal Hardware Components

Details the internal hardware components of the computer, such as CPU and storage drive.

Power Condition Descriptions

Explains the meaning of different indicator lights related to power and battery status.

Chapter 4 Operating Basics

Using the Touch Screen

Describes basic touch gestures like tap, press and hold, pinch, rotate, and slide for screen interaction.

Using the Touch Pad

Explains various touch pad gestures including taps, scrolls, and multi-finger inputs for navigation.

The Keyboard

Details keyboard layout, special keys, and function key combinations for computer operation.

Using the Fingerprint Sensor

Guides on enrolling and using the fingerprint sensor for secure and convenient sign-in.

Battery

Covers battery types, usage, charging methods, and handling precautions for optimal performance.

Chapter 5 Utilities and Advanced Usage

dynabook Settings

A configuration tool for managing BIOS, power, keyboard, boot options, and system passwords.

eco Utility

Helps control computer power consumption and manage power saving features.

System Password

Allows setting user and supervisor passwords for computer access restriction.

dynabook Maintenance Utility

Utility to erase internal storage drive, delete partitions, and overwrite sectors.

Chapter 6 Troubleshooting

Problem-solving process

Provides guidelines for diagnosing and resolving computer issues effectively, emphasizing observation and documentation.

If something goes wrong

Offers solutions for common issues like unresponsive keyboard, frozen programs, or failure to start.

Hardware and system checklist

A checklist to identify potential problems related to computer hardware components and peripherals.

Technical support

Information on how to obtain additional assistance for unresolved hardware-related problems.

Chapter 7 Appendix

Specifications

Summarizes the technical specifications of the computer, including physical dimensions and environmental requirements.

AC Power Cord and Connectors

Details the requirements for AC power cords and connectors, including wire size and current rating.

Information for Wireless Devices

Covers wireless technology interoperability, security, and health considerations for Wi-Fi and Bluetooth.

Accessibility

Details Windows 10 accessibility features to customize the user experience for various needs.