Lenovo 7390, 7397, 7392, 7391, 7398, 7396 manual Troubleshooting and diagnostics

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7.Look for a build up of dirt on the plastic rollers 3 inside the ball cage. This build up usually appears as a stripe running across the middle of the rollers.

8.If the rollers are dirty, clean them by using a cotton swab soaked in isopropyl (rubbing) alcohol. Turn the rollers with your finger and continue swabbing them until all the dirt is removed. Be sure the rollers are still centered in their channels after you clean them.

9.Remove any fibers from the swab that might be remaining on the rollers.

10.Replace the ball and the retainer ring. Twist the retainer ring to the locked position.

11.Reconnect the mouse cable to the computer.

12.Turn your computer back on.

Chapter 7. Troubleshooting and diagnostics 53

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Contents User Guide Lenovo 3000 J Series Page Lenovo 3000 J Series Page Contents Index Appendix A. Manual modem Commands Conditions that require immediate action Important safety informationService and upgrades General safety guidelinesStatic electricity prevention Power cords and power adaptersViii User Guide Plugs and outlets Voltage-selection switchExtension cords and related devices Heat and product ventilation External devicesBatteries Operating environment To connect To disconnect Electrical current safety informationLithium battery notice Laser compliance statement Modem safety informationAdditional safety information Power supply statementData safety Cleaning and maintenanceIntroduction Xvi User Guide Glare and lighting Arranging your workspaceComfort Electrical outlets and cable lengths Air circulationConnecting your computer Setting up your computerUser Guide Setting up your computer User Guide 1394 Completing important tasks Turning on powerFinishing the software installation Shutting down the computer Installing other operating systemsUpdating your operating system Updating your antivirus softwareUser Guide Features Installing optionsMemory Input/output features Available options Environment SpecificationsDimensions WeightHandling static-sensitive devices Supported operating positionsTools required Installing external options Locating connectors on the rear of your computer Obtaining device drivers Connector DescriptionRemoving the cover Locating components Accessing system board components Installing options Identifying parts on the system board Installing options Installing memory What to do next Installing PCI adaptersInstalling security features Padlock Password protectionChanging the battery Erasing a lost or forgotten password clearing Cmos Replacing the cover and connecting the cables User Guide Creating and using the Product Recovery disc Recovering softwarePerforming backup and recovery operations Using the Rescue and Recovery workspace Creating and using rescue media To create rescue media, do the following Creating and using a Recovery Repair disketteRecovering or installing device drivers Solving recovery problems Setting a rescue device in the startup sequenceUser Guide Using passwords Using the Setup UtilityStarting the Setup Utility program Viewing and changing settingsUsing Security Profile by Device User PasswordAdministrator Password Setting, changing, and deleting a passwordChanging the startup device sequence Selecting a startup deviceSelecting a temporary startup device Exiting from the Setup Utility program Advanced settingsUpdating system programs Using system programsUpdating flashing Bios from a diskette User Guide Symptom Action Troubleshooting and diagnosticsBasic troubleshooting Diagnostic programs PC-Doctor for DOS PC-Doctor for WindowsCreating diagnostic diskettes Optical mouse Cleaning the mousePC-Doctor for Windows PE Non-optical mouse Troubleshooting and diagnostics User Guide Lenovo Care Getting information, help, and serviceInformation resources Online Books folderSafety and warranty Access HelpCalling for service Help and serviceUsing the documentation and diagnostic programs Purchasing additional services Using other servicesBasic AT commands Appendix A. 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 A. Manual modem commands User Guide Appendix B. Notices Trademarks Television output noticeIndex 14, 24, 25 Page Part Number
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7390, 7396, 7398, 7391, 7392 specifications

Lenovo has consistently been at the forefront of innovation in the technology space, and its range of products identified by the model numbers 7392, 7396, 7398, 7391, and 7397 is no exception. These devices exemplify the company's commitment to delivering cutting-edge features, technological advancements, and user-centric designs.

The Lenovo 7392 series is designed with a robust performance architecture that caters to both business and personal use cases. Equipped with the latest Intel processors, these devices exhibit exceptional multitasking capabilities, ensuring a smooth user experience even when running resource-intensive applications. The 7392 stands out with its high-resolution displays, which offer vivid colors and sharp images, making it ideal for entertainment, design work, and professional presentations.

Next, the Lenovo 7396 enhances user connectivity with a variety of ports, including USB-C, USB 3.0, and HDMI. This versatility allows users to connect a plethora of peripherals, from external monitors to storage devices. Moreover, the device incorporates advanced wireless technologies such as Wi-Fi 6 and Bluetooth 5.0 for faster data transfer and improved connectivity, catering to the needs of users in a rapidly evolving digital landscape.

The Lenovo 7398 model showcases exceptional battery life, providing users with the freedom to work or play without the constant need to recharge. This is further complemented by rapid charging technology, which allows users to gain hours of usage from just a short time plugged in. Such features make it an excellent choice for professionals on the go.

The Lenovo 7391 is particularly noteworthy for its integrated security features. Equipped with a fingerprint reader and optional face recognition, this model ensures that user data remains secure while offering quick and convenient access. This focus on security is particularly appealing to enterprises and individuals who prioritize privacy and data protection.

Lastly, the Lenovo 7397 highlights premium build quality and design. With a sleek aesthetic, lightweight chassis, and durable materials, this model not only looks good but is built to withstand daily wear and tear. The backlit keyboard and touchpad support enhance the usability, allowing users to work comfortably in low-light environments.

In summary, the Lenovo 7392, 7396, 7398, 7391, and 7397 offer a diverse array of features, including powerful performance, robust connectivity options, impressive battery life, enhanced security, and premium design. Together, these models cater to various user needs, solidifying Lenovo's reputation as a leader in innovative technology solutions.
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