Lenovo Yoga C740 Series User Guide
Read this first Before using this documentation and the product it supports, ensure that you read and understand the following: • Appendix A “Important safety information” on page 39 • Safety and Warranty Guide • Setup Guide First Edition (August 2019) © Copyright Lenovo 2019. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS35F-05925.
Contents About this documentation . . . . . . . . iii Chapter 1. Meet your computer . . . . . 1 Front . . . . . . . . . . . . . Base . . . . . . . . . . . . . Left . . . . . . . . . . . . . Right . . . . . . . . . . . . . Bottom . . . . . . . . . . . . Features and specifications . . . . Statement on USB transfer rate . Operating environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 4 8 10 12 13 13 Chapter 2.
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About this documentation • Illustrations in this documentation might look different from your product. • Depending on the model, some optional accessories, features, and software programs might not be available on your computer. • Depending on the version of operating systems, some user interface instructions might not be applicable to your computer. • Documentation content is subject to change without notice.
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Chapter 1. Meet your computer Front 1. Microphones Capture or record sound and voice. 2. Camera Take pictures or record videos by clicking Camera from the Start menu. Note: If you use other apps that support photographing, video chatting, and video conference, the camera starts automatically when you enable the camera-required feature from the app. 3. Camera cover slider Move the slider to cover or uncover the camera lens. Note: The camera cover helps you better protect your privacy. 4.
Base C740-14IML 1. Speakers Produce sound. 2. Keyboard Enter characters and interact with programs. Note: The keyboard also includes hotkeys and function keys for changing settings and performing tasks quickly. 3. Fingerprint reader Enroll and read your fingerprint for user authentication. 4. Touchpad Perform finger touch and all the functions of a traditional mouse. Note: The touchpad also supports multi-touch function.
C740-15IML 1. Keyboard Enter characters and interact with programs. Note: The keyboard also includes hotkeys and function keys for changing settings and performing tasks quickly. 2. Numeric keypad To enable or disable the numeric keypad, press the Num Lock key. Note: If the Num Lock light is on, the numeric keypad is in use. 3. Fingerprint reader Enroll and read your fingerprint for user authentication. 4. Touchpad Perform finger touch and all the functions of a traditional mouse.
Left C740-14IML 1. Power connector / USB Type-CTM connector (USB 3.1 Gen 1) • Connect to ac power with the included power cord and ac power adapter. • When not connected with the ac power adapter, it acts as a USB Type-C connector. For more information about this connector, see USB Type-C connector (USB 3.1 Gen 1). Note: An appropriate USB Type-C cable is required for connecting external devices. 2. Charging status indicator Indicate whether the computer is connected to ac power.
3. USB Type-C connector (USB 3.1 Gen 1) • Charge your computer. • Charge USB Type-C compatible devices with the output voltage and current of 5 V and 3 A. • Transfer data at USB 3.1 speed, up to 5 Gbps. • Connect to an external display: – USB Type-C to VGA: Maximum 1900 x 1200 pixels, 60 Hz – USB Type-C to DP: Maximum 3840 x 2160 pixels, 60 Hz – USB Type-C to HDMI: Maximum 3840 x 2160 pixels, 60 Hz • Supply power to another computer using P-to-P (Peer to Peer) 2.0 charging function. See “Use P-to-P 2.
C740-15IML 1. Power connector / USB Type-C connector (USB 3.1 Gen 1) • Connect to ac power with the included power cord and ac power adapter. • When not connected with the ac power adapter, it acts as a USB Type-C connector. For more information about this connector, see USB Type-C connector (USB 3.1 Gen 1). Note: An appropriate USB Type-C cable is required for connecting external devices. 2. Charging status indicator Indicate whether the computer is connected to ac power.
3. USB Type-C connector (USB 3.1 Gen 1) • Charge your computer. • Charge USB Type-C compatible devices with the output voltage and current of 5 V and 3 A. • Transfer data at USB 3.1 speed, up to 5 Gbps. • Connect to an external display: – USB Type-C to VGA: Maximum 1900 x 1200 pixels, 60 Hz – USB Type-C to DP: Maximum 3840 x 2160 pixels, 60 Hz – USB Type-C to HDMI: Maximum 3840 x 2160 pixels, 60 Hz • Supply power to another computer using P-to-P (Peer to Peer) 2.0 charging function. See “Use P-to-P 2.
Right C740-14IML 1. Always On USB Type-A connector (USB 3.1 Gen 1) • Connect USB-compatible devices, such as a USB keyboard, USB mouse, USB storage device, or USB printer. • Charge external devices when the computer is turned off, in sleep or hibernation mode. Note: The always-on function can be turned on or off in one or more of the following software: Lenovo Vantage Lenovo PC Manager UEFI/BIOS Setup utility 2.
C740-15IML 1. USB Type-A connector (USB 3.1 Gen 1) 2. Always On USB Type-A connector (USB 3.1 Gen 1) Connect USB-compatible devices, such as a USB keyboard, USB mouse, USB storage device, or USB printer. • Connect USB-compatible devices, such as a USB keyboard, USB mouse, USB storage device, or USB printer. • Charge external devices when the computer is turned off, in sleep or hibernation mode.
Bottom C740-14IML 1. Novo button When the computer is off, press this button to start the System Recovery or the BIOS setup utility, or to enter the boot menu. 2. Ventilation slots Dissipate heat.
C740-15IML 1. Novo button When the computer is off, press this button to start the System Recovery or the BIOS setup utility, or to enter the boot menu. 2. Ventilation slots Dissipate heat. 3. Speakers Produce sound. Chapter 1.
Features and specifications Dimensions C740-14IML • Width: 321.8 mm (12.67 inches) • Depth: 214.6 mm (8.44 inches) • Thickness: – Front: 14.9 mm (0.58 inches) – Rear: 16.9 mm (0.67 inches) C740-15IML • Width: 357.8 mm (14.08 inches) • Depth: 235.35 mm (9.27 inches) • Thickness: – Front: 16.02 mm (0.63 inches) – Rear: 18.25 mm (0.72 inches) ac power adapter 100 V to 240 V ac, 50 Hz to 60 Hz Battery pack C740-14IML • 51 Wh • 4 cells C740-15IML • 60.
Connectors and slots • Audio connector C740-14IML • Always On USB Type-A connector (USB 3.1 Gen 1) • Two USB Type-C connectors (USB 3.1 Gen 1) C740-15IML • Two USB Type-A connectors (USB 3.1 Gen 1) (including one Always On USB) • Two USB Type-C connectors (USB 3.1 Gen 1) Wireless features • Bluetooth • Wireless LAN Others • Camera • Microphones • Stereo speakers • Novo button * for selected models Note: The battery capacity is the typical or average capacity as measured in a specific test environment.
Note: When you charge the battery, its temperature must be no lower than 10°C (50°F).
Chapter 2. Get started with your computer Get started with Windows 10 Learn the basics of Windows 10 and start working with it right away. For more information about Windows 10, see the Windows help information. Windows account You must create at least one account to use the Windows operating system. It can be either a local account or a Microsoft account. Local accounts A local account is created on a particular Windows-enabled device and it can only be used on that device.
Note: By default, you are prompted to add Microsoft accounts. If you don’t know the person’s Microsoft account, select I don’t have this person’s sign-in information. Follow on-screen instructions to create a Microsoft account for the person. Alternatively, select Add a user without a Microsoft account to create a local account for the person. Enroll your fingerprint If your computer includes a fingerprint reader, you can enroll your fingerprint for Windows sign-in. Step 1.
Windows user interface 1. Account Change account settings, lock the computer, or sign out from the current account. 2. Documents Open the Documents folder, a default folder to save your received files. 3. Pictures Open the Pictures folder, a default folder to save your received pictures. 4. Settings Launch Settings. 5. Power Shut down, restart, or put the computer into sleep mode. 6. Start button Open the Start menu. 7.
Launch an app • Open the Start menu and select the app you want to launch. • Use Windows Search. Lenovo Vantage and Lenovo PC Manager Lenovo Vantage and Lenovo PC Manager is software developed by Lenovo. Using the software, you can: • View product information • View warranty and support information • Run hardware scan and diagnose problems • Change hardware settings • Update Windows, drivers, and UEFI/BIOS Lenovo Vantage or PC Manager may be pre-installed on your computer.
Interact with your computer YOGA modes The display panel can be opened to any angle, up to 360 degrees. The orientation of the contents of your display changes automatically when you rotate the display to a different angle. To prevent automatic orientation, you can turn on the Rotation lock located in the action center. Attention: • Do not open the display with too much force, as this can damage the panel or hinges.
Notebook mode Suitable for tasks that require a keyboard and mouse (such as creating documents, writing emails, and more). Stand mode Suitable for tasks that require little or no touch (such as viewing photos or playing videos). Tent mode Suitable for tasks that require limited interaction with the touch screen (such as displaying graphs or PowerPoint presentations). Tablet mode Suitable for tasks that require frequently touching the screen (such as surfing the web, playing games, and more).
Tap once • From the Start menu: Open an app or item. • From the desktop: Select an app or item. • In an open app: Perform an action such as Copy, Save, and Delete, depending on the app. Tap twice quickly Open an app or item from the desktop. Tap and hold Open a shortcut menu. Slide Scroll through items, such as lists, pages, and photos. Drag an item to the location you want Move an object. Chapter 2.
Move two fingers closer together Zoom out. Move two fingers farther apart Zoom in. Swipe in from the right edge Open the action center to see your notifications and quick actions. Swipe in from the left edge View all your open windows in task view. • Swipe downwards shortly from the top edge (for full-screened app or when your computer is in the tablet mode) Show a hidden title bar. • Swipe in from the top edge to the bottom edge (when your computer is in the tablet mode) Close the current app.
Lenovo Digital Pen Selected models are equipped with Lenovo Digital Pen. The pen is not waterproof. Keep the pen away from water and excessive moisture. To purchase Lenovo Digital Pen, go to https:// www.lenovo.com/accessories. Install the AAAA battery Lenovo Digital Pen uses AAAA battery. The AAAA battery is provided in some countries or regions. Use Lenovo Digital Pen 1 Top button 2 Bottom button You can perform the following operations with the Lenovo Digital Pen: Chapter 2.
Tap once Click or make a selection. Tap twice quickly Open an app or item from the desktop. Tap and hold Right-click Hold the Top button 1 and tap the screen Right-click. Hold the Bottom button 2 and tap the screen Erase ink in supported applications. Pen settings You can change the pen related settings in Lenovo Pen Settings. Step 1. In Windows 10 search box, type Lenovo Pen Settings. Step 2. Enter Lenovo Pen Settings window and change.
Keyboard hotkeys Some keys on the keyboard are printed with icons. These keys are called hotkeys and can be pressed alone or in combination with the Fn key to access certain Windows functions or settings quickly. The functions of hotkeys are symbolized by the icons printed on them. Hotkey Function Mutes/Unmutes sound. Decreases system volume. Increases system volume. Enables/Disables the integrated microphone. Reloads Web pages or refreshes the screen. Enables/Disables the touchpad.
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Chapter 3. Explore your computer Manage power Use the information in this section to achieve the best balance between performance and power efficiency. Check the battery status The battery status icon or is in the Windows notification area. You can check the battery status, view the current power plan, and access battery settings quickly. Click the battery status icon to display the percentage of battery power remaining and change the power mode. A warning message is displayed when the battery is low.
• The remaining battery power of computer A is at least 30% and is 3% higher than that of computer B. Once the remaining power of computer A is lower than 30%, it stops supplying power to computer B. To check the battery status, see “Check the battery status” on page 27. Check the battery temperature You can check the battery temperature in Lenovo Vantage or Lenovo PC manager. Step 1. Open Lenovo Vantage. Step 2. Click Hardware Settings ➙ Power. Step 3.
Open the UEFI/BIOS setup utility Step 1. Turn on or restart the computer. Step 2. When the Lenovo logo appears on the screen, press F2 repeatedly. Note: For computers with hotkey mode enabled, press Fn + F2. Change startup sequence You may need to change startup sequence to allow the computer to start from another device or a network location. Step 1. Open the UEFI/BIOS setup utility. Step 2. Navigate to the Boot menu. Step 3.
Password type Pre-requisite Usage Administrator password No You must enter it to start the setup utility. User password The administrator password must be set. You can use the user password to start the setup utility. Master hard disk password No You must enter it to start the operating system. User hard disk password The master hard disk password must be set. You can use the user hard disk password to start the operating system.
Set user password You must set the administrator password before you can set the user password. The administrator of the setup utility might need to set a user password for use by others. Step 1. Open the UEFI/BIOS setup utility using the administrator password. Step 2. Select Security ➙ Set User Password and press Enter. Step 3. Enter a password string that contains only letters and numbers and then press Enter. The user password must be different from the administrator password. Step 4.
To change or remove master password, select Change Master Password and press Enter. Note: If you remove the master hard disk password, the user hard disk password is also removed. To change user password, select Change User Password and press Enter. Note: The user hard disk password cannot be removed separately. Step 4. Select Exit ➙ Exit Saving Changes. Reset or restore Windows This section introduces the recovery options of Windows 10. Ensure that you read and follow the on-screen recovery instructions.
Step 2. Select the System Protection tab and then select Create. Note: System protection must be turned on for the system drive (typically with drive letter C) before you can create restore points. Select a drive and then select Configure to turn on or disable system protection. Restore from a system restore point Step 1. In Windows 10 search box, enter Recovery and select the matched result. Step 2. Select Open System Restore ➙ Next. Step 3. Select a restore point and then select Next ➙ Finish.
Note: For computers without a USB Type-A connector, you may need to purchase and use an adapter (USB Type-C to Type-A) to use a recovery drive. Step 2. On the Choose an option screen, select Troubleshoot. Step 3. Choose a recovery option. Select Advanced Options ➙ System Restore to restore your computer to a system restore point. Or select Recover from a drive to reset your computer.
Chapter 4. Help and support Frequently asked questions How do I open the Control Panel? • Open the Start menu and select Windows System ➙ Control Panel. • Use Windows Search. How should I turn off my computer? Open the Start menu and select Power ➙ Shut down. How do I partition my storage drive? Refer to https://support.lenovo.com/solutions/ht503851 What should I do if my computer stops responding. Press and hold the power button until the computer turns off. Then restart the computer. 1.
Resources How to access? Lenovo Support Web site with the latest support information of the following: • Drivers and software • Diagnostic solutions Visit https://support.lenovo.com • Product and service warranty • Product and parts details • Knowledge base and frequently asked questions • Open the Start menu and select Get Help or Tips. Windows help information • Use Windows Search or the Cortana® personal assistant. • Microsoft support Web site: https:// support.microsoft.
Call Lenovo If you have tried to correct the problem yourself and still need help, you can call Lenovo Customer Support Center. Before you contact Lenovo Record product information and problem details before you contact Lenovo.
For the terms and conditions of the Lenovo Limited Warranty that apply to your Lenovo hardware product, see “Warranty information” in the Safety and Warranty Guide that comes with your computer. Purchase additional services During and after the warranty period, you can purchase additional services from Lenovo at https:// www.lenovo.com/services. Service availability and service name might vary by country or region.
Appendix A. Important safety information Safety notices This information can help you safely use your computer. Follow and retain all information included with your computer. The information in this document does not alter the terms of your purchase agreement or the Limited Warranty. For more information, see "Warranty Information" in the Safety and Warranty Guide that comes with your computer. Customer safety is important. Our products are developed to be safe and effective.
Protect yourself from the heat generated by the ac power adapter. When the ac power adapter is connected to an electrical outlet and your computer, it generates heat. Extended contact with your body, even through clothing, may cause a skin burn. • Do not place the ac power adapter in contact with any part of your body while it is in use. • Never use it to warm your body. • Do not wrap the cords around the ac power adapter while in use. Prevent your computer from getting wet.
Handle your computer gently. Do not drop, bump, scratch, twist, hit, vibrate, push, or place heavy objects on your computer, display, or external devices. Carry your computer carefully. • Use a quality carrying case that provides adequate cushioning and protection. • Do not pack your computer in a tightly packed suitcase or bag. • Before putting your computer in a carrying case, make sure that it is off, in sleep mode, or in hibernation mode.
• Power cords, plugs, power adapters, extension cords, surge protectors, or power supplies that are cracked, broken, or damaged. • Signs of overheating, smoke, sparks, or fire. • Damage to a battery (such as cracks, dents, or creases), discharge from a battery, or a buildup of foreign substances on the battery. • A cracking, hissing, or popping sound, or strong odor that comes from the product.
When replacing CRUs, be cautious of sharp edges or corners that might cause injury. If you suffer an injury, seek medical care immediately. Power cords and power adapters DANGER Use only the power cords and power adapters supplied by the product manufacturer. The power cords shall be safety approved. For Germany, it shall be H03VV-F, 3G, 0.75 mm2, or better. For other countries, the suitable types shall be used accordingly. Never wrap a power cord around a power adapter or other object.
Plugs and outlets DANGER If a receptacle (power outlet) that you intend to use with your computer equipment appears to be damaged or corroded, do not use the outlet until it is replaced by a qualified electrician. Do not bend or modify the plug. If the plug is damaged, contact the manufacturer to obtain a replacement.
General battery notice DANGER Batteries supplied by Lenovo for use with your product have been tested for compatibility and should only be replaced with approved parts. A battery other than the one specified by Lenovo, or a disassembled or modified battery is not covered by the warranty. Battery abuse or mishandling can cause overheat, liquid leakage, or an explosion. To avoid possible injury, do the following: • Do not open, dissemble, or service any battery. • Do not crush or puncture the battery.
The Lenovo-authorized repair facilities or technicians recycle Lenovo batteries according to local laws and regulations. When replacing the lithium coin-cell battery, use only the same type or equivalent type that is recommended by the manufacturer. The battery contains lithium and can explode if not properly used, handled, or disposed of. Swallowing the lithium coin-cell battery will cause chocking or severe internal burns in just two hours and might even result in death.
Heat and product ventilation DANGER Computers, ac power adapters, and many accessories can generate heat when turned on and when batteries are charging. Notebook computers can generate a significant amount of heat due to their compact size. Always follow these basic precautions: • When your computer is turned on or the battery is charging, the base, the palm rest, and some other parts may become hot.
Electrical current safety information DANGER Electric current from power, telephone, and communication cables is hazardous. To avoid a shock hazard: • Do not use your computer during a lightning storm. • Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm. • Connect all power cords to a properly wired and grounded electrical outlet. • Connect properly wired outlets to any equipment that will be attached to this product.
Liquid crystal display (LCD) notice CAUTION: The liquid crystal display (LCD) is made of glass, and rough handling or dropping the computer can cause the LCD to break. If the LCD breaks and the internal fluid gets into your eyes or on your hands, immediately wash the affected areas with water for at least 15 minutes; if any symptoms are present after washing, get medical care.
Glass parts notice CAUTION: Some parts of your product may be made of glass. This glass could break if the product is dropped on a hard surface or receives a substantial impact. If glass breaks, do not touch or attempt to remove it. Stop using your product until the glass is replaced by trained service personnel. Static electricity prevention Static electricity, although harmless to you, can seriously damage computer components and options. Improper handling of static-sensitive parts can damage the part.
Appendix B. Accessibility and ergonomic information This chapter provides information about accessibility and ergonomics. Accessibility information Lenovo is committed to providing users who have hearing, vision, and mobility limitations with greater access to information and technology. This section provides information about the ways these users can get the most out of their computer experience. You also can get the most up-to-date accessibility information from the following Web site: https://www.
keyboard with all the standard keys. You can select keys using the mouse or another pointing device, or you can tap to select the keys if your computer supports multi-touch screen. • High Contrast High Contrast is a feature that heightens the color contrast of some text and images on your screen. As a result, those items are more distinct and easier to identify. • Personalized keyboard Adjust keyboard settings to make your keyboard easier to use.
– Change the size of all the items on your screen. 1. Right-click a blank area on the desktop and then click Display settings ➙ Display. 2. Change the item size by following the on-screen instructions. For some applications, your configuration might not take effect until you sign out and then sign in again. – Change the size of the items on a Web page. Press and hold Ctrl, and then press the plus-sign key (+) to enlarge or the minus-sign key (–) to reduce the text size.
Display: Position the display to maintain a comfortable viewing distance of 510 mm to 760 mm (20 inches to 30 inches). Avoid glare or reflections on the display from overhead lighting or outside sources of light. Keep the display screen clean and set the brightness to levels that enable you to see the screen clearly. Press the brightness control keys to adjust display brightness. Head position: Keep your head and neck in a comfortable and neutral (vertical, or upright) position.
Appendix C. Compliance information This appendix provides the various compliance statements for Lenovo products. Radio frequency compliance statements Computer models equipped with wireless communications comply with the radio frequency and safety standards of any country or region in which it has been approved for wireless use. Besides this document, ensure that you read the Regulatory Notice for your country or region before using the wireless devices contained in your computer.
C740-14IML C740-15IML Brazil Este equipamento não tem direito à proteção contra interferência prejudicial e não pode causar interferência em sistemas devidamente autorizados. This equipment is not protected against harmful interference and may not cause interference with duly authorized systems.
Singapore Korea 무선설비 전파 혼신 (사용주파수 2400∼2483.5 , 5725∼5825 무선제품해당) 해당 무선설비가 전파혼신 가능성이 있으므로 인명안전과 관련된 서비스는 할 수 없음 SAR 정보 본 장치는 전파 노출에 대한 가이드라인을 충족합니다. 본 장치는 무선 송수신기 입니다. 본 장치는 국제 가이드라인으로 권장되는 전파 노출에 대한 제한을 초과하지 않도록 설계되었습니다. 장치 액세서리 및 최신 부품을 사용할 경우 SAR 값이 달라질 수 있 습니다. SAR 값은 국가 보고 및 테스트 요구 사항과 네트워크 대역에 따라 다를 수 있습니다. 본 장치 는 사람의 신체에서 20mm 이상의 거리에서 사용할 수 있습니다. Environmental information by countries and regions This section provides environmental, recycling, and RoHS information about Lenovo products.
Users of electrical and electronic equipment (EEE) with the WEEE marking must not dispose of end of life EEE as unsorted municipal waste, but use the collection framework available to them for the return, recycle, and recovery of WEEE and to minimize any potential effects of EEE on the environment and human health due to the presence of hazardous substances. Lenovo electrical and electronic equipment (EEE) may contain parts and components, which at end-of-life might qualify as hazardous waste.
Disposing of a disused battery from Lenovo notebook computers Your Lenovo notebook computer has a lithium ion battery or a nickel metal hydride battery. If you are a company employee who uses a Lenovo notebook computer and need to dispose of a battery, contact the proper person in Lenovo sales, service, or marketing, and follow that person's instructions. You also can refer to the instructions at: https://www.lenovo.
and accumulators on the environment and human health due to the potential presence of hazardous substances. Before placing electrical and electronic equipment (EEE) in the waste collection stream or in waste collection facilities, the end user of equipment containing batteries and/or accumulators must remove those batteries and accumulators for separate collection.
https://www.lenovo.com/ecodeclaration European Union RoHS This Lenovo product, with included parts (cables, cords, and so on) meets the requirements of Directive 2011/65/EU on the restriction of the use of certain hazardous substances in electrical and electronic equipment ("RoHS recast" or "RoHS 2"). For more information about Lenovo worldwide compliance on RoHS, go to: https://www.lenovo.
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Taiwan RoHS Electromagnetic emission notices Federal Communications Commission (FCC) Supplier’s Declaration of Conformity The following information refers to Lenovo Yoga C740-14IML and Lenovo Yoga C740-15IML, machine types 81TC and 81TD. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful Appendix C.
interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
Um dieses sicherzustellen, sind die Geräte wie in den Handbüchern beschrieben zu installieren und zu betreiben. Des Weiteren dürfen auch nur von der Lenovo empfohlene Kabel angeschlossen werden. Lenovo übernimmt keine Verantwortung für die Einhaltung der Schutzanforderungen, wenn das Produkt ohne Zustimmung der Lenovo verändert bzw. wenn Erweiterungskomponenten von Fremdherstellern ohne Empfehlung der Lenovo gesteckt/eingebaut werden.
注意事項： • 使用30分鐘請休息10分鐘。 • 未滿2歲幼兒不看螢幕，2歲以上每天看螢幕不要超過1小時。 Supplemental information for the Eurasian Union Назначение персональный компьютер для личного и служебного использования, для передачи данных, с поддержкой различных профилей подключения (Wi-Fi, Bluetooth и пр.).
By using ENERGY STAR compliant products and taking advantage of the power management features of your computer, you reduce the consumption of electricity. Reduced electrical consumption contributes to potential financial savings, a cleaner environment, and the reduction of greenhouse gas emissions. For more information about ENERGY STAR, go to https://www.energystar.gov Lenovo encourages you to make efficient use of energy an integral part of your day-to-day operations.
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Appendix D. Notices and trademarks Notices Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult your local Lenovo representative for information on the products and services currently available in your area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that Lenovo product, program, or service may be used.
Any performance data contained herein was determined in a controlled environment. Therefore, the result obtained in other operating environments may vary significantly. Some measurements may have been made on development-level systems and there is no guarantee that these measurements will be the same on generally available systems. Furthermore, some measurements may have been estimated through extrapolation. Actual results may vary.
