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Chapter 6. Troubleshooting, diagnostics, and recovery

This chapter provides solutions to resolve computer problems. Use the basic procedure as a starting point
for resolving computer problems.

Basic procedure for resolving computer problems

Prerequisite

Before you start, read Appendix A “Important safety information” on page 53 and print the following
instructions.

1. Check that:

a. The cables for all connected devices are connected correctly and securely.

b. All components have been reassembled correctly.

c. All connected devices that require ac power are connected to properly grounded and working

electrical outlets.

d. All connected devices are enabled in UEFI BIOS.

2. Use an antivirus program (if any) to see if the computer has been infected by a virus. If the program

detects a virus, remove the virus.

3. See Chapter 6 “Troubleshooting, diagnostics, and recovery” on page 29 to resolve the problem you are

experiencing, run the diagnostic program, and recover your operating system.

4. If the problem persists, contact Lenovo. See Chapter 8 “Help and support” on page 49.

Troubleshooting

Use the troubleshooting information to find solutions to problems that have definite symptoms.

Содержание V50a-22IMB

Страница 1: ...Lenovo V50a 22IMB Lenovo V50a 24IMB User Guide ...

Страница 2: ...t safety information on page 53 Safety and Warranty Guide Setup Guide Fourth Edition June 2021 Copyright Lenovo 2020 2021 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 GS 35F 05925 ...

Страница 3: ...orage drive data 21 Use the cover presence switch 21 Use Intel BIOS guard 22 Use Smart USB Protection 22 Chapter 5 UEFI BIOS 23 What is UEFI BIOS 23 Enter the BIOS menu 23 Navigate in the BIOS interface 23 Change the display language of UEFI BIOS 23 Change the display mode of UEFI BIOS 24 Set the system date and time 24 Change the startup sequence 24 Enable or disable the configuration change dete...

Страница 4: ...ive 47 Chapter 8 Help and support 49 Self help resources 49 Call Lenovo 50 Before you contact Lenovo 50 Lenovo Customer Support Center 50 Purchase additional services 51 Appendix A Important safety information 53 Appendix B Accessibility and ergonomic information 67 Appendix C Compliance and TCO Certified information 69 Appendix D Notices and trademarks 81 ii Lenovo V50a 22IMB Lenovo V50a 24IMB Us...

Страница 5: ...ght not be applicable to your computer Documentation content is subject to change without notice Lenovo makes constant improvements on the documentation of your computer including this User Guide To get the latest documentation go to https pcsupport lenovo com Microsoft makes periodic feature changes to the Windows operating system through Windows Update As a result some information in this docume...

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Страница 7: ... Camera from the Start menu 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 5 Multi touch screen Enable you to use your computer with simple touch gestures See Use the multi touch screen for selected models on page 11 6 Optical drive eject button Eject the optical drive tra...

Страница 8: ... Connect a headset or headphones to your computer 11 SD card slot Supported cards Secure Digital SD card Secure Digital eXtended Capacity SDXC UHS 1 card Secure Digital High Capacity SDHC UHS 1 card Note Your computer does not support the content protection for recordable media CPRM feature for the SD card See Use a media card for selected models on page 16 12 USB 3 2 connector Gen 1 Connect USB c...

Страница 9: ...a high performance monitor 6 USB 2 0 connector Connect USB compatible devices such as a USB keyboard USB mouse USB storage device or USB printer 7 USB C 3 2 Gen 1 connector Charge USB C compatible devices with the output voltage and current of 5 V and 3 A Transfer data at USB 3 2 speed up to 5 Gbps Connect to USB C accessories to help expand your computer functionality To purchase USB C accessorie...

Страница 10: ... voltage sensing power supply 120 watt automatic voltage sensing power supply Electrical input Input voltage From 100 V ac to 240 V ac Input frequency 50 60 Hz Microprocessor To view the microprocessor information of your computer right click the Start button and then click System Memory Up to two double data rate 4 DDR4 small outline dual in line memory modules SODIMMs Storage device 2 5 inch for...

Страница 11: ...s Internal speaker Expansion SD card reader Memory slots M 2 solid state drive slot Optical drive bay Storage drive bay Network features Bluetooth Ethernet LAN Wireless LAN for selected models For detailed specifications of your computer go to https psref lenovo com Statement on USB transfer rate Depending on many factors such as the processing capability of the host and peripheral devices file at...

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Страница 13: ...elected models Note For information about installing the computer stand refer to the setup guide that comes with your computer Type 1 Tilt the screen forward and back Turn the screen to the left and right Type 2 Tilt the screen forward and back Copyright Lenovo 2020 2021 7 ...

Страница 14: ...me you are prompted to create a Windows user account This first account you created is of the Administrator type With an Administrator account you can create additional user accounts or change account types by doing the following 1 Open the Start menu and select Settings Accounts Family other users 2 Follow the on screen instructions Microsoft account You can also log in to the Windows operating s...

Страница 15: ... Open the Start menu 7 Windows Search Type what you are looking for in the search box and get search results from your computer and the Web 8 Task View Display all opened apps and switch among them 9 Windows notification area Display notifications and status of some features 10 Battery status icon Display power status and change battery or power settings When your computer is not connected to ac p...

Страница 16: ...ed according to local regulations 1 Click the network icon in the Windows notification area A list of available wireless networks is displayed 2 Select a network available for connection Provide required information if needed Use the Vantage app The preinstalled Vantage app is a customized one stop solution to help you maintain your computer with automated updates and fixes configure hardware sett...

Страница 17: ...t to open its settings window Then follow the on screen instructions Open the Start menu Click Settings System Display Then turn on or turn off the Night light switch Note Selected Lenovo computers are low blue light certified These computers are tested with night light turned on and color temperature set to the default value of 48 Use the multi touch screen for selected models If your computer di...

Страница 18: ... a shortcut menu Slide Scroll through items such as lists pages and photos Drag an item to the location you want Move an object Move two fingers closer together Zoom out 12 Lenovo V50a 22IMB Lenovo V50a 24IMB User Guide ...

Страница 19: ... 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 Chapter 2 Get started with your computer 13 ...

Страница 20: ...Use audio To enhance the audio experience connect speakers headphones or a headset to the audio connector Adjust the volume 1 Click the volume icon in the Windows notification area on the taskbar 2 Follow the on screen instructions to adjust the volume Click the speaker icon to mute the audio Change the sound settings 1 Go to Control Panel and view by category 2 Click Hardware and Sound Sound 3 Ch...

Страница 21: ...waken the computer from Sleep mode press any key on your keyboard To reset the power plan to achieve the best balance between performance and power saving 1 Go to Control Panel and view by large icons or small icons 2 Click Power Options and then choose or customize a power plan of your preference Transfer data Quickly share your files using the built in Bluetooth technology among devices with the...

Страница 22: ...in an emergency Record a disc 1 Insert a recordable disc into the optical drive that supports recording 2 Do one of the following Open the Start menu and then click Settings Devices AutoPlay Select or turn on Use AutoPlay for all media and devices Open Windows Media Player Double click the ISO file 3 Follow the on screen instructions Use a media card for selected models If your computer has a SD c...

Страница 23: ...sories and upgrades to help expand the capabilities of your computer Options include memory modules storage devices network cards power adapters keyboards mice and more To shop at Lenovo go to https www lenovo com accessories Chapter 3 Explore your computer 17 ...

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Страница 25: ...sington style cable lock Use passwords Password types You can set the following passwords in UEFI Unified Extensible Firmware Interface BIOS Basic Input Output System to prevent unauthorized access to your computer However you are not prompted to enter any UEFI BIOS password when your computer resumes from sleep mode Power on password When a power on password is set you are prompted to enter a val...

Страница 26: ...displayed press F1 or Fn F1 2 Select Security 3 Depending on the password type select Set Supervisor Password Set Power On Password Set System Management Password or Hard Disk Password and press Enter 4 Follow the on screen instructions to set change or remove a password 5 Press F10 or Fn F10 to save the changes and exit You should record your passwords and store them in a safe place If you forget...

Страница 27: ...eration Select Yes and press Enter The erasing process begins Note During the erasing process the power button and the keyboard are disabled 6 After the erasing process is completed a message is displayed prompting you to reset the system Select Continue Note Depending on the storage drive capacity the erasing process will take half an hour to three hours 7 After the resetting process is completed...

Страница 28: ... the Smart USB Protection function to one of the following modes Disabled default setting You can use the USB storage devices without limitation Read Only You cannot copy data from the computer to the USB storage devices However you can access or modify data on the USB storage devices No Access You cannot access the USB storage devices from the computer To configure the Smart USB Protection functi...

Страница 29: ...stem configurations that are protected by passwords Navigate in the BIOS interface Attention The default configurations are already optimized for you in boldface Improper change of the configurations might cause unexpected results Depending on your keyboard you can navigate in the BIOS interface by pressing the following keys or combinations of Fn and the following keys F1 or Fn F1 Display the Gen...

Страница 30: ...er is on or turn on the computer Then insert the disc into the optical drive If the storage device is an external device other than a disc connect the storage device to the computer 2 Restart the computer When the logo screen is displayed press F1 or Fn F1 3 Select Startup and then follow the on screen instructions to change the startup sequence 4 Press F10 or Fn F10 to save the changes and exit S...

Страница 31: ...en the logo screen is displayed press F1 or Fn F1 2 Select Power Automatic Power On and press Enter 3 Select the feature as desired and press Enter 4 Enable or disable the feature as desired 5 Press F10 or Fn F10 to save the changes and exit Enable or disable the smart power on feature Ensure that the keyboard is connected to a USB connector supporting the smart power on feature With the smart pow...

Страница 32: ...d thermal performance of your computer by changing the ITS performance mode Three choices are available Best Performance default setting The computer works at the best system performance with normal acoustic level Best Experience The computer works at the best experience with balanced noise and better performance Full Speed All fans in the computer will run at full speed To change the ITS performa...

Страница 33: ...S Recover from a BIOS update failure 1 Remove all media from the drives and turn off all connected devices 2 Insert the BIOS update disc into the optical drive and then turn off the computer 3 Disconnect all power cords from electrical outlets 4 Reconnect the power cords for the computer and the monitor to electrical outlets 5 Press and hold the power button for about 20 seconds 6 Release the powe...

Страница 34: ...sconnect all power cords from electrical outlets 8 Reinstall all the parts that have been removed Then reconnect the power cords for the computer and the monitor to electrical outlets 9 Turn on the computer and the monitor When the logo screen is displayed press F1 or Fn F1 10 To prevent data loss ensure that BIOS settings are restored to an earlier point For BIOS configurations see Chapter 5 UEFI...

Страница 35: ...tly c All connected devices that require ac power are connected to properly grounded and working electrical outlets d All connected devices are enabled in UEFI BIOS 2 Use an antivirus program if any to see if the computer has been infected by a virus If the program detects a virus remove the virus 3 See Chapter 6 Troubleshooting diagnostics and recovery on page 29 to resolve the problem you are ex...

Страница 36: ...orrect storage drive or fails to start up Ensure that all storage drive signal cables and power cables are connected correctly Ensure that the storage drive the computer starts up from is listed as the first startup device in UEFI BIOS In rare cases the storage drive with the operating system might get corrupted or damaged In such cases you might need to replace the storage drive If the computer i...

Страница 37: ...roblem Move fluorescent desk lighting or any equipment that produces magnetic fields farther away from the screen If the problem persists turn off the computer Then adjust the placement of the computer and other devices so that they are at least 305 mm 12 inches apart Turn on the computer Reset the refresh rate 1 Right click a blank area on the desktop 2 Click Display settings On the Display tab c...

Страница 38: ...lots the audio function built into the system board is disabled Therefore you must use the audio connectors on the audio adapter Ensure that the program you are running is designed for use in the Microsoft Windows operating system If the program is designed to run in DOS the program does not use the Windows sound feature The program must be configured to use SoundBlaster Pro or SoundBlaster emulat...

Страница 39: ... might degrade performance cause data loss or result in lost connections When a Gigabit Ethernet model computer is used at a speed of 1000 Mbps the Ethernet LAN connection fails or errors occur Connect the network cable to the Ethernet connector using Category 5 wiring and a 100 BASE T hub switch not 100 BASE X The Wake On LAN WOL feature does not work Enable the Wake On LAN feature in UEFI BIOS T...

Страница 40: ...nd then click Enable device 4 Expand Network adapters to display all network devices Right click each Bluetooth device and then click Enable device Turn on the Bluetooth radio 1 Open the Start menu 2 Click Settings Devices Bluetooth other devices 3 Turn on the Bluetooth switch to enable the Bluetooth feature Update or reinstall the Bluetooth driver Sound does not come from the Bluetooth headset or...

Страница 41: ... menu 2 Click Windows System File Explorer This PC 3 Right click your C drive and then click Properties 4 Check the amount of free space and then click Disk Cleanup 5 A list of unnecessary file categories is displayed Select the category you want to delete and then click OK Disable some Windows features or remove some unnecessary programs 1 Go to Control Panel and view by large icons or small icon...

Страница 42: ...maged Try inserting another disc that you know works If you have multiple CD or DVD drives installed or a combination of CD and DVD drives try inserting the disc into the other drive In some cases only one of the drives is connected to the audio subsystem A bootable recovery medium such as the Product Recovery CD cannot be used to start your computer Ensure that the CD or DVD drive is set as the t...

Страница 43: ...evice for more information Disconnect and reconnect the USB connector to reset the USB device Ensure that the Smart USB Protection function is disabled in UEFI BIOS Software problems Problem Solution Some programs do not work as expected 1 Check whether the problem is caused by a program a Ensure that the software is compatible with the computer Refer to the information supplied with the software ...

Страница 44: ...ll icons 2 Click Recovery Open System Restore Then follow the on screen instructions Restore your files from a backup Note If you use the File History tool to restore your files from a backup ensure that you backed up your data earlier with the tool 1 Go to Control Panel and view by large icons or small icons 2 Click File History Restore personal files Then follow the on screen instructions Reset ...

Страница 45: ...e prepared USB drive to the computer 4 Type recovery in the search box Then click Create a recovery drive 5 Click Yes in the User Account Control window to allow the Recovery Media Creator program to start 6 In the Recovery Drive window follow the on screen instructions to create a recovery USB drive Use the recovery USB drive If your computer cannot be started go to Chapter 8 Help and support on ...

Страница 46: ...ssary drivers and software From Windows Update Note The device drivers provided by Windows Update might not be tested by Lenovo It is recommended that you get device drivers from Lenovo 1 Open the Start menu 2 Click Settings Update Security Windows Update 3 Follow the on screen instructions 40 Lenovo V50a 22IMB Lenovo V50a 24IMB User Guide ...

Страница 47: ...e from Lenovo at any time upon request You might be required to return the defective part that is replaced by the CRU When return is required 1 return instructions a prepaid shipping label and a container will be included with the replacement CRU and 2 you might be charged for the replacement CRU if Lenovo does not receive the defective CRU within thirty 30 days of your receipt of the replacement ...

Страница 48: ...ter from ac power and all connected cables 3 Place a soft clean towel or cloth on the desk or surface Hold the sides of your computer and gently lay it down so that the screen is against the surface and the computer cover is facing up 4 Replace the computer stand 42 Lenovo V50a 22IMB Lenovo V50a 24IMB User Guide ...

Страница 49: ...ter and wait several minutes until the computer is cool Replacement procedure 1 Turn off the computer and remove all connected devices and cables 2 Unlock any locking device that secures the computer cover 3 Place a soft clean towel or cloth on the desk or surface Hold the sides of your computer and gently lay it down so that the screen is against the surface and the computer cover is facing up 4 ...

Страница 50: ...ttom side of the computer cover from the hooks in direction as shown Note Do not use a metal screwdriver or any other hard tools as they might damage the computer cover or the LCD panel c With one hand holding down the LCD panel by its edge the other hand pulls the computer cover up with fingertips to gradually release the rest three sides of the computer cover from the hooks in sequence as shown ...

Страница 51: ... installing the computer cover turn it over to adjust the rear cover releaser as shown e Install the computer cover f Move the computer cover screw cap back to the original position Chapter 7 CRU replacement 45 ...

Страница 52: ...ation on page 53 and print the following instructions Replacement procedure 1 Remove the computer stand See Computer stand on page 41 2 Remove the computer cover See Computer cover on page 43 3 Disconnect the internal speaker cable from the system board 4 Replace the internal speakers 5 Connect the new internal speaker cable to the system board 6 Reinstall the removed parts Then reconnect the ac p...

Страница 53: ...ng the internal storage drive make a backup copy of all the data that you want to keep Do not touch the contact edge of the internal storage drive Otherwise the internal storage drive might get damaged Do not apply pressure to the internal storage drive Do not make the internal storage drive subject to physical shocks or vibration Put the internal storage drive on a soft material such as cloth to ...

Страница 54: ...the storage drive cable to the 2 5 inch storage drive 6 Reinstall all removed parts Then reconnect the ac power adapter and all disconnected cables to the computer 48 Lenovo V50a 22IMB Lenovo V50a 24IMB User Guide ...

Страница 55: ... Vantage in the search box Product documentation Safety and Warranty Guide Setup Guide This User Guide Regulatory Notice Go to https pcsupport lenovo com Then follow the on screen instructions to filter out the documentation you want Lenovo Support Web site with the latest support information of the following Drivers and software Diagnostic solutions Product and service warranty Product and parts ...

Страница 56: ...duced If so how 2 Record the system information Product name Machine type and serial number The following illustration shows where to find the machine type and serial number of your computer Lenovo Customer Support Center During the warranty period you can call Lenovo Customer Support Center for help Telephone numbers For a list of the Lenovo Support phone numbers for your country or region go to ...

Страница 57: ...to your hardware available Services not covered Replacement or use of parts not manufactured for or by Lenovo or nonwarranted parts Identification of software problem sources Configuration of UEFI BIOS as part of an installation or upgrade Changes modifications or upgrades to device drivers Installation and maintenance of network operating systems NOS Installation and maintenance of programs For t...

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Страница 59: ...rnal battery that provides power to the system clock even when the computer is unplugged so the battery safety information applies to all computer products Conditions that require immediate action Products can become damaged due to misuse or neglect Some product damage is serious enough that the product should not be used again until it has been inspected and if necessary repaired by an authorized...

Страница 60: ...ote Some computer parts can be upgraded or replaced by the customer Upgrades typically are referred to as options Replacement parts approved for customer installation are referred to as Customer Replaceable Units or CRUs Lenovo provides documentation with instructions when it is appropriate for customers to install options or replace CRUs You must closely follow all instructions when installing or...

Страница 61: ...tubs toilets or on floors that are cleaned with liquid cleansers Liquids can cause a short circuit particularly if the power cord or power adapter has been stressed by misuse Liquids also can cause gradual corrosion of power cord terminals and or the connector terminals on a power adapter which can eventually result in overheating Ensure that all power cord connectors are securely and completely p...

Страница 62: ...her countries the suitable types must be used accordingly For units intended to be operated in Denmark Use a cord set with a grounding type attachment plug The cord set should have the appropriate safety approvals for the country in which the equipment will be installed For units intended to be operated in Norway Sweden Finland Use a cord set with a two prong attachment plug The cord set should ha...

Страница 63: ...Consult an electrician for more information if you have questions about power loads and branch circuit ratings Be sure that the power outlet you are using is properly wired easily accessible and located close to the equipment Do not fully extend power cords in a way that will stress the cords Be sure that the power outlet provides the correct voltage and current for the product you are installing ...

Страница 64: ...he body seek medical care immediately Do not Throw or immerse into water Heat to more than 100 C 212 F Repair or disassemble Leave in an extremely low air pressure environment Leave in an extremely high temperature environment Crush puncture cut or incinerate Dispose of the battery as required by local ordinances or regulations The following statement applies to users in the state of California U ...

Страница 65: ...er Keep the cover closed whenever the computer is plugged in Regularly inspect the outside of the computer for dust accumulation Remove dust from vents and any perforations in the bezel More frequent cleanings might be required for computers in dusty or high traffic areas Do not restrict or block any ventilation openings Do not store or operate your computer inside furniture as this might increase...

Страница 66: ...n connected to the computer DANGER During electrical storms do not perform any replacement and do not connect the telephone cable to or disconnect it from the telephone outlet on the wall Laser safety information CAUTION When laser products such as CD ROMs DVD drives fiber optic devices or transmitters are installed note the following Do not remove the covers Removing the covers of the laser produ...

Страница 67: ...our computer has both a headphone connector and an audio line out connector always use the headphone connector for earphones headphones or a headset However the headphone connector does not support the microphone of the headset If your computer has both a headset connector and an audio line out connector always use the headset connector for earphones headphones or a headset Excessive sound pressur...

Страница 68: ... bags can be dangerous Keep plastic bags away from babies and children to avoid danger of suffocation 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...

Страница 69: ... tips on how to minimize visual fatigue please go to https www lenovo com us en safecomp to visit Minimizing Visual Fatigue Tip over hazard prevention notice The computer may cause harm to children if it is not located in an appropriate place Follow the tips below to protect children from harm caused by the computer tipping over Place the computers or monitors on sturdy furniture with a low base o...

Страница 70: ...ing and install the part without setting it down When this is not possible place the static protective packaging on a smooth level surface and place the part on it Do not place the part on the computer cover or other metal surface Operating environment Maximum altitude without pressurization Operating From 15 2 m 50 ft to 3048 m 10 000 ft Storage From 15 2 m 50 ft to 10 668 m 35 000 ft Temperature...

Страница 71: ...or any other actions that might have taken place A log book can help you or a Lenovo technician determine the cause of a problem Back up your data on the storage drive regularly You can restore the storage drive from a backup Create a recovery medium as early as possible You can use the recovery medium to recover your operating system even if Windows fails to start up Get the most up to date opera...

Страница 72: ...e keys you can use a camera blower with a brush or use cool air from a hair dryer Clean the computer screen Scratches oil dust chemicals and ultraviolet light can affect the performance of your computer screen Use a dry soft lint free cloth to wipe the screen gently If you see a scratchlike mark on your screen it might be a stain Wipe or dust the stain gently with a soft dry cloth If the stain rem...

Страница 73: ...unding light sources active seating and the placement of your computer hardware can help you improve your performance and achieve greater comfort This example shows someone in a conventional setting Even when not in such a setting you can follow many of these tips Develop good habits and they will serve you well General posture Make minor modifications in your working posture to deter the onset of...

Страница 74: ...ght support for your arms Keep your forearms wrists and hands in a relaxed and neutral horizontal position Type with a soft touch without pounding the keys Leg position Keep your thighs parallel to the floor and your feet flat on the floor or on a footrest 68 Lenovo V50a 22IMB Lenovo V50a 24IMB User Guide ...

Страница 75: ...that apply to EU Council Radio Equipment Directive 2014 53 EU on the approximation of the laws of the Member States as well as the UK Radio Equipment Regulations SI 2017 No 1206 relating to radio equipment The full text of the system EU declaration of conformity is available at https www lenovo com us en compliance eu doc The full text of the system UK declaration of conformity is available at htt...

Страница 76: ... 따라 다를 수 있습니다 본 장치 는 사람의 신체에서 20mm 이상의 거리에서 사용할 수 있습니다 Environmental information of countries and regions This section provides environmental recycling and RoHS information about Lenovo products Recycling and environmental information Lenovo encourages owners of information technology IT equipment to responsibly recycle their equipment when it is no longer needed Lenovo offers a variety of program...

Страница 77: ...fy as hazardous waste EEE and waste electrical and electronic equipment WEEE can be delivered free of charge to the place of sale or any distributor that sells electrical and electronic equipment of the same nature and function as the used EEE or WEEE Before placing electrical and electronic equipment EEE in the waste collection stream or in waste collection facilities the end user of equipment co...

Страница 78: ...that contain heavy metals or other environmental sensitive substances To properly dispose of disused components such as a printed circuit board or drive use the methods described above for collecting and recycling a disused computer or monitor Dispose of disused lithium batteries from Lenovo computers A button shaped lithium battery is installed inside your Lenovo computer to provide power to the ...

Страница 79: ...vo product with included parts cables cords and so on meets the requirements of EU Directive 2011 65 EU as amended by Directive 2015 863 EU and UK SI 2012 No 3032 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 com rohs communication Turki...

Страница 80: ...Mainland China RoHS 74 Lenovo V50a 22IMB Lenovo V50a 24IMB User Guide ...

Страница 81: ...gnetic emission notices Federal Communications Commission FCC Supplier s Declaration of Conformity The following information refers to below products and machine types Appendix C Compliance and TCO Certified information 75 ...

Страница 82: ...ipment Unauthorized changes or modifications could void the user s authority to operate the equipment This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Responsible Party Lenovo United...

Страница 83: ...r Lenovo gesteckt eingebaut werden Zulassungsbescheinigung laut dem Deutschen Gesetz über die elektromagnetische Verträglichkeit von Betriebsmitteln EMVG vom 20 Juli 2007 früher Gesetz über die elektromagnetische Verträglichkeit von Geräten bzw der EU Richtlinie 2014 30 EU der EU Richtlinie 2014 53 EU Artikel 3 1b für Geräte der Klasse B Dieses Gerät ist berechtigt in Übereinstimmung mit dem Deuts...

Страница 84: ...iance tco Export classification notice This product is subject to the United States Export Administration Regulations EAR and has an Export Classification Control Number ECCN of 5A992 c It can be re exported except to any of the embargoed countries in the EAR E1 country list Lenovo product service information for Taiwan Taiwan precautionary vision statement 警語使用過度恐傷害視力注意事項使用30分鐘請休息10分鐘未滿2歲幼兒不看...

Страница 85: ...fixed to the product the product packaging or displayed electronically on the E label screen or the power settings interface 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 green...

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Страница 87: ... to improve and or modify the products and software programs described in the manuals included with your computer and the content of the manual at any time without additional notice The software interface and function and hardware configuration described in the manuals included with your computer might not match exactly the actual configuration of the computer that you purchase For the configurati...

Страница 88: ... notice For the latest information or any questions or comments contact or visit the Lenovo Web site https pcsupport lenovo com Trademarks LENOVO and LENOVO logo are trademarks of Lenovo Intel and Optane are trademarks of Intel Corporation or its subsidiaries in the U S and or other countries Microsoft Windows Direct3D and Cortana are trademarks of the Microsoft group of companies VESA is a tradem...

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