Cleaning your computer

It is a good practice to clean your computer periodically to protect the surfaces and ensure trouble-free operation.

CAUTION:

Be sure to turn off the computer and monitor power switches before cleaning the computer and monitor screen.

Computer

Use only mild cleaning solutions and a damp cloth to clean the painted surfaces of the computer.

Keyboard

To clean your computer keyboard, do the following:

1.Apply some isopropyl rubbing alcohol to a soft, dust-free cloth.

2.Wipe each keytop surface with the cloth. Wipe the keys one by one; if you wipe several keys at a time, the cloth may hook onto an adjacent key and possibly damage it. Make sure that no liquid drips onto or between the keys.

3.To remove any crumbs or dust from beneath the keys, you can use a camera blower with a brush or cool air from a hair dryer.

Note: Avoid spraying cleaner directly onto the display or the keyboard.

Optical mouse

This section provides instructions on how to clean an optical mouse.

An optical mouse uses a light-emitting diode (LED) and an optical sensor to navigate the pointer. If the pointer on the screen does not move smoothly with the optical mouse, you might need to clean the mouse.

To clean an optical mouse, do the following:

1.Turn off your computer.

2.Disconnect the mouse cable from the computer.

3.Turn the mouse upside down to check the lens.

a.If there is a smudge on the lens, gently clean the area with a plain cotton-tipped swab.

b.If there is debris in the lens, gently blow the debris away from the area.

4.Check the surface on which you are using the mouse. If you have a very intricate picture or pattern beneath the mouse, it may be difficult for the digital signal processor (DSP) to determine changes in the mouse position.

5.Reconnect the mouse cable to the computer.

6.Turn your computer back on.

Display screen

Dust buildup compounds problems associated with glare. Remember to clean your monitor screen periodically. See “Cleaning a flat-panel monitor surface” on page 87 or “Cleaning a glass-screen surface” on page 88.

Cleaning a flat-panel monitor surface

If you have a flat-panel computer display that has a flexible film surface, do the following to clean the special surface. Wipe it gently with a soft, dry cloth, or blow on the screen to remove grit and other loose particles. Then moisten a cloth with LCD cleaner and wipe the screen surface.

Chapter 9. Preventing problems

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Lenovo 3496, 3493DFU manual Cleaning your computer, Computer, Keyboard, Optical mouse, Display screen
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3493, 3496, 3493DFU specifications

The Lenovo 3493DFU, 3496, and 3493 are part of Lenovo's series of durable and reliable laptops designed for both personal and professional use. These models are particularly notable for their robust build quality, processing power, and array of features that cater to different user needs.

The Lenovo 3493DFU is equipped with an AMD processor, which provides efficient performance for multitasking and everyday computing tasks. It features a 15.6-inch HD display that offers vibrant colors and decent viewing angles. This model is designed with portability in mind, weighing around 5.6 pounds, making it easy to carry for users on the go. The Lenovo 3493DFU also includes a full-sized keyboard that enhances typing comfort and precision, ideal for long hours of work or study.

Meanwhile, the Lenovo 3496 is known for its impressive storage capabilities. With options for a solid-state drive (SSD) or a larger hard disk drive (HDD), users can choose the best fit according to their storage needs. The 3496 also features the latest USB ports, including USB 3.0, enabling faster data transfer and connection to a variety of peripherals. Its integrated graphics cater well to casual gamers and multimedia enthusiasts, ensuring a smooth experience with movies and videos.

On the other hand, the Lenovo 3493 is tailored more towards business users who require a reliable laptop for everyday tasks. It boasts an efficient Intel processor that balances power and battery life. The battery life is one of its standout features, allowing for extended use without requiring frequent recharging. This model also includes robust security features, such as a fingerprint reader and TPM (Trusted Platform Module), which enhance data protection and privacy.

All three models feature Lenovo’s innovative technologies, such as Lenovo Vantage, which simplifies system updates, device management, and access to support. These laptops are also outfitted with a range of connectivity options, including HDMI and RJ-45, which facilitate seamless connections to external displays and networks.

In summary, the Lenovo 3493DFU, 3496, and 3493 are versatile laptops that cater to various user requirements, whether for personal use, casual gaming, or professional tasks. With their strong performance, reliable build quality, and cutting-edge features, they represent great choices in Lenovo's laptop lineup.
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