Lenovo A50, M50e Series manual Appendix B. Cleaning the mouse, Cleaning an optical mouse

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Appendix B. Cleaning the mouse

This appendix provides instructions on how to clean your mouse. The procedure will be different depending on which type of mouse you have.

Cleaning an optical mouse

If you experience some problems with your optical mouse, check the following:

1.Turn the mouse over and look carefully at the lens area.

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

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

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

Cleaning a mouse with a ball

If the pointer on the screen does not move smoothly with the mouse, you might need to clean the mouse.

Note: The following illustration might be slightly different from your mouse.

1 Retainer ring 2 Ball

3 Plastic rollers 4 Ball cage

To clean a mouse with a ball:

1.Turn off your computer.

2.Turn the mouse over, with the top side down, and look carefully at the bottom. Twist the retainer ring1to the unlocked position to remove the ball.

© Copyright IBM Corp. 2004

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Contents ThinkCentre Page ThinkCentre Page Contents Appendix C. Manual modem Conditions that require immediate action Important safety informationGeneral safety guidelines ServicePower cords and power adapters Extension cords and related devices Plugs and outletsBatteries Heat and product ventilation CD and DVD drive safetyTo connect To disconnect Additional safety informationLithium battery notice Modem safety informationConnexion Déconnexion Consignes de sécurité relatives au modem Laser compliance statementXii User Guide Information resources OverviewIdentifying your computer Types 8149, 8177, FeaturesVideo subsystem Operating systems preinstalled varies by model type Specifications Available options Tools requiredHandling static-sensitive devices Locating the connectors on the front of your computer Installing external optionsLocating the connectors on the rear of your computer Obtaining device drivers Connector DescriptionRemoving the cover Identifying parts on the system board Locating componentsInstalling memory What to do next Installing adaptersWhat to do next Drive specifications Installing internal drivesInstalling a drive User Guide Connecting the first CD drive or DVD drive Connecting a serial ATA hard disk drive Installing security featuresRope clip Identifying security locksUser Guide Changing the battery Integrated cable lock Password protectionErasing a lost or forgotten password clearing Cmos Replacing the cover and connecting the cables User Guide Types 8126, 8174, 8175, Power supply with manual voltage selection switch Operating systems certified or tested for compatibility3 Height 398 mm 15.67 Width 180 mm 7.08 Depth 402 mm 15.82 Available options Installing external options Locating the connectors on the front of your computer Locating the connectors on the rear of your computer Obtaining device drivers Removing the cover Locating components Installing memory What to do next Installing adapters Secure the adapter with the screw as shown Drive specifications Installing a drive Connecting the first CD drive or DVD drive Installing security features 1 Rope clip 2 Integrated cable lock 3 Padlock loop Types 8126, 8174, 8175, and 8176 Integrated cable lock Password protection Erasing a lost or forgotten password clearing Cmos Replacing the cover and connecting the cables Types 8126, 8174, 8175, and 8176 User Guide Types 8084, 8085, 8147, 8148, Internal drives Operating systems certified or tested for compatibility5 Height 413 mm 16.25 Width 191 mm 7.5 Depth 406 mm 16 Available options Installing external options Locating the connectors on the front of your computer Locating the connectors on the rear of your computer Obtaining device drivers Removing the cover Locating components Installing memory Installing adapters What to do next Installing internal drives Installing a drive Types 8084, 8085, 8147, 8148, and 8179 Connecting the first CD drive or DVD drive Installing security features Identifying security locks Types 8084, 8085, 8147, 8148, and 8179 Integrated cable lock Password protection Erasing a lost or forgotten password clearing Cmos Replacing the cover and connecting the cables Types 8084, 8085, 8147, 8148, and 8179 User Guide Using the IBM Setup Utility program Selecting a startup device Administrator passwordSetting, changing, and deleting a password Using Security Profile by DeviceAdvanced settings Selecting a temporary startup deviceChanging the startup sequence User Guide System programs Updating flashing Bios from a disketteUpdating flashing Bios from your operating system Appendix A. Updating system programsRecovering from a POST/BIOS update failure Appendix B. Cleaning the mouse Cleaning an optical mouseCleaning a mouse with a ball User Guide Basic AT commands Appendix C. Manual modem commandsInternal speaker on until carrier detected Low speaker volumeSet Pulse dial as default Set Tone Dial as defaultExtended AT commands MNP/V.42/V.42bis/V.44 commands Fax Class 2 commands Fax Class 1 commandsVoice commands Appendix C. Manual modem commands User Guide CRU parts list Appendix D. Customer replaceable unit CRU parts listUser Guide Appendix E. Notices Trademarks Television output noticeDrives IndexReplacing the cover Page Part Number 19R0764

A50, M50e Series specifications

The Lenovo A50 and M50e series represent a significant advancement in the realm of technology and innovation, catering primarily to businesses and professionals seeking reliable performance and efficiency. These desktop PCs are designed to meet the demanding needs of today's fast-paced environments, combining power, flexibility, and user-friendly features.

One of the standout characteristics of the A50 and M50e series is their compact design, which allows for easy integration into various workspaces. Their space-saving architecture makes them ideal for office settings, where space can be a premium. Despite their small footprint, these systems pack a considerable punch in terms of performance.

In terms of processing power, the A50 and M50e series are equipped with the latest Intel processors. These processors ensure seamless multitasking, enabling users to run multiple applications smoothly without experiencing lag. This capability is particularly beneficial for professionals who rely on resource-intensive software for tasks such as graphic design, data analysis, and video editing.

Storage options in the A50 and M50e series are equally impressive. Users can choose from a variety of configurations, including traditional hard disk drives (HDD) and solid-state drives (SSD). The SSD option allows for faster boot times and quicker access to files, significantly enhancing overall productivity.

Another notable feature is the systems’ support for advanced graphics. The A50 and M50e series can be equipped with dedicated graphics cards, making them suitable for creative professionals and gamers who require high-quality visuals and performance. Moreover, the series offers multiple output ports, providing flexibility for connecting various peripherals and multiple monitors.

The Lenovo A50 and M50e series also prioritize connectivity and collaboration. They come with a range of USB ports, HDMI outputs, and networking options, allowing users to easily connect to the internet and peripheral devices. This ensures that teams can work together efficiently, sharing information and resources with ease.

Furthermore, Lenovo emphasizes energy efficiency in the design of the A50 and M50e series. These systems come with features that help reduce power consumption, which not only lowers operating costs but also aligns with sustainable practices that many organizations are striving to implement.

In conclusion, the Lenovo A50 and M50e series are robust desktop solutions that offer reliability, performance, and flexibility for various professional environments. Their compact design, powerful processing capabilities, advanced graphics support, and emphasis on connectivity make them an ideal choice for businesses aiming to enhance productivity and collaboration.
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