Lenovo B590, 59366616, B490 manual Liquid crystal display LCD notice, Using headphones or earphones

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DANGER

Some laser products contain an embedded Class 3A or Class 3B laser diode. Note the following:

Laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam.

Liquid crystal display (LCD) notice

CAUTION:

For products with mercury-containing fluorescent lamps (for example, non-LED)

•The fluorescent lamp in the liquid crystal display contains mercury; dispose of according to local, state, or federal laws.

•The 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.

Using headphones or earphones

CAUTION:

Excessive sound pressure from earphones and headphones can cause hearing loss. Adjustment of the equalizer to maximum increases the earphone and headphone output voltage and the sound pressure level. Therefore, to protect your hearing, adjust the equalizer to an appropriate level.

Excessive use of headphones or earphones for a long period of time at high volume can be dangerous if the output of the headphone or earphone connectors do not comply with specifications of EN 50332-2. The headphone output connector of your computer complies with EN 50332-2 Sub clause 7. This specification limits the computer’s maximum wide band true RMS output voltage to 150 mV. To help protect against hearing loss, ensure that the headphones or earphones you use also comply with EN 50332-2 (Clause 7 limits) for a wide band characteristic voltage of 75 mV. Using headphones that do not comply with EN 50332-2 can be dangerous due to excessive sound pressure levels.

If your Lenovo computer came with headphones or earphones in the package, as a set, the combination of the headphones or earphones and the computer already complies with the specifications of EN 50332-1. If different headphones or earphones are used, ensure that they comply with EN 50332-1 (Clause 6.5 Limitation Values). Using headphones that do not comply with EN 50332-1 can be dangerous due to excessive sound pressure levels.

Additional safety information

DANGER

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

© Copyright Lenovo 2012

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Contents Lenovo B490 and B590 User GuideSafety, Warranty, and Setup Guide Regulatory Notice Contents Appendix D. Notices Protect yourself from the heat that your computer generates Read this firstPrevent your computer from getting wet Protect the cables from being damagedProtect your computer and data when moving it Important safety informationConditions that require immediate action Handle your computer gentlyService and upgrades Safety guidelinesExtension cords and related devices Power cords and power adaptersPlugs and outlets General battery notice Power supply statementExternal devices Lithium coin cell battery notice Rechargeable battery noticeHeat and product ventilation Laser compliance statement Electrical current safety informationAdditional safety information Using headphones or earphonesLiquid crystal display LCD notice Xii User Guide Top view Getting to know your computerLeft-side view Right-side view Front view Bottom view Status indicatorsNumeric Lock indicator Caps Lock indicatorDevice access status indicator Power and battery status indicator FeaturesSpecifications Frequently asked questions Using your computerConnecting to power Tips on using your computerConfiguring the operating system Putting the computer into sleep mode or shutting it downChecking the battery status Using the ac power adapter and the battery packCharging the battery Using the ac power adapterMaximizing the battery life Connecting the ac power adapterHandling the battery Using the keyboard Using the touch padNumeric keypad B490 Using the recovery buttonB590 Volume controls Fn + Left/Right arrow Launching the camera and audio settings Fn+EscAdjusting display brightness level Fn + Up/Down arrow Power conservation Fn+F1Using the media card reader Connecting to external devicesUsing the Nvidia Optimus Graphics feature Using USB connectorsSwitching the Graphics Processing Unit Inserting a flash media cardWired connection Connecting to the networkHardware connection CableWireless connection Software configurationConnecting to the network User Guide You and your computer Accessibility and comfortErgonomic information What if you are traveling? Security Using passwordsAttaching a mechanical lock User Guide Solving recovery problems on the Windows 7 operating system Recovery overviewRefreshing your computer settings Recovery overview User Guide Replacing devices Replacing the batteryStatic electricity prevention Replacing the backup battery Replacing devices Replacing the hard disk drive Prerequisites for the procedureReplacing a memory module User Guide Replacing devices Removing the optical drive Replacing devices User Guide General tips for preventing problems Preventing problemsTaking care of your computer Be careful about where and how you workBe gentle with your computer Carry your computer properlyClean the cover of your computer Take care in setting passwordsHandle storage media and drives properly Data protectionCleaning your computer display Cleaning your computer keyboardRegistering your computer Be sure not to modify your computerTroubleshooting Troubleshooting computer problemsBattery and power problems Battery problemsAn ac power adapter problem Computer screen problemsStartup problem Sleep and hibernation problemsHard disk drive problems Problems with drives and other storage devicesPassword problem OneKey Recovery Pro program problemsOptical drive problems Other problems Sound problemYour computer does not respond Computer does not start from a device you wantUser Guide Wireless interoperability Wireless related informationAppendix A. Regulatory information Usage environment and your health Energy Star model informationElectronic emission notices Export classification noticeIndustry Canada Class B emission compliance statement Appendix A. Regulatory information User Guide China Weee statement Important Weee Information Appendix B. Weee and recycling statementsJapan recycling statements Disposing of Lenovo computer components Recycling information for BrazilBattery recycling information for the European Union User Guide Ukraine RoHS China RoHS Turkish RoHSIndia RoHS Appendix D. Notices Trademarks Index User Guide Page Part Number 1P P/N
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B490, B590, 59366616 specifications

Lenovo's B-series laptops, including the B490, B590, and B59366616, are designed to meet the needs of business professionals who seek a balance between performance, affordability, and portability. These laptops are characterized by their solid build quality, robust features, and user-friendly design, making them ideal for everyday office tasks or on-the-go productivity.

The Lenovo B490 is equipped with a 14-inch display that delivers sharp visuals, making it suitable for presentations and document editing. It offers a variety of processor options, ranging from Intel Core i3 to Core i5, enabling users to select the level of performance that best suits their requirements. The B490 comes with 4GB or 8GB of RAM, which can be upgraded for enhanced multitasking capabilities. Additionally, it offers various storage options, including traditional hard drives and solid-state drives, providing flexibility in terms of speed and storage capacity.

On the other hand, the Lenovo B590 features a larger 15.6-inch display, making it a great choice for users who prefer a bigger screen for their workflow. Like the B490, it also supports a range of Intel processors and offers ample options for RAM and storage. The keyboard is designed for comfortable typing, which is essential for extended work sessions. Advanced technologies, such as Dolby Advanced Audio, ensure an enhanced audio experience, making it suitable for webinars, video conferences, and multimedia consumption.

Both models feature Lenovo's Enhanced Experience software that optimizes boot times and provides a range of tools for system maintenance and management. They also come with various connectivity options, including USB 3.0 ports, HDMI, and Ethernet, allowing users to connect to multiple devices with ease.

Security is another cornerstone of these laptops. Features like Lenovo’s OneKey Rescue System assist in data recovery, while the option for fingerprint readers adds an additional layer of security for sensitive business information.

Overall, the Lenovo B490, B590, and B59366616 offer a reliable and efficient computing solution for professionals. Their combination of performance, affordability, and essential features makes them favorable options for those looking to enhance productivity without breaking the bank. Whether in the office or on the move, these laptops are tailored to meet the diverse needs of business users.
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