Lenovo R50 manual UltraNav problems

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Solving computer problems

2.Remove the external numeric keypad or the mouse.

3.Turn on the computer and try using the keyboard again.

If the keyboard problem is resolved, carefully reconnect the external numeric keypad, external keyboard, or mouse, making sure that you have seated the connectors properly.

If keys on the keyboard still do not work, have the computer serviced.

Problem:

A number appears when you type a letter.

Solution

The numeric lock function is on. To disable it, press and hold Shift; then press NumLk.

Problem:

All or some of the keys on the external numeric keypad do not work.

Solution:

Make sure that the external numeric keypad is correctly connected to the computer.

Problem

Some or all of the keys on the external PS/2 keyboard do not work.

Solution

If you are using the ThinkPad Dock II, the ThinkPad Mini Dock, or the ThinkPad Port Replicator II, make sure that the keyboard cable is correctly connected to the keyboard connector.

If the connection is correct, disconnect the cable and make sure that the built-in keyboard operates properly. If the built-in keyboard works, there is a problem with the external keyboard. Try using a different external keyboard.

UltraNav problems

Problem:

The pointer drifts when the computer is turned on or after it resumes normal operation.

Solution:

The pointer might drift when you are not using the TrackPoint during normal operation. This is a normal characteristic of the TrackPoint and is not a defect. Pointer drifting might occur for several seconds under the following conditions:

vWhen the computer is turned on.

vWhen the computer resumes normal operation.

vWhen the TrackPoint is pressed for a long time.

vWhen the temperature changes.

20ThinkPad® R50 Series Service and Troubleshooting Guide

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Contents ThinkPad R50 Series Service and Troubleshooting Guide Page ThinkPad R50 Series Service and Troubleshooting Guide Page Contents Iv ThinkPad R50 Series Service and Troubleshooting Guide Important safety information Conditions that require immediate actionGeneral safety guidelines ServicePower cords and power adapters Extension cords and related devices Plugs and outletsBatteries Heat and product ventilation CD and DVD drive safety Additional safety informationTo Connect Xii ThinkPad R50 Series Service and Troubleshooting Guide Important safety information Laser compliance statement Important safety information Xvi ThinkPad R50 Series Service and Troubleshooting Guide Important notice for users Important regulatory notice for usersInformation about hard disk capacity Xviii ThinkPad R50 Series Service and Troubleshooting Guide Finding information with Access IBM XixXx ThinkPad R50 Series Service and Troubleshooting Guide Overview of your new ThinkPad computer Your ThinkPad at a glance Front viewRear view Features Features Specifications Be gentle with your computer Important tips Be careful about where and how you workCaring for your ThinkPad computer Carry your computer properlyTake care in setting passwords Handle storage media and drives properlyOther important tips Cleaning the cover of your computer Cleaning your computer keyboardCleaning your computer display Care for the fingerprint readerCaring for your ThinkPad computer Solving computer problems Error messages Diagnosing problemsTroubleshooting Click PC-DoctorSolving computer problems Solving computer problems Solving computer problems Select Security -IBM Predesktop Area -Access IBM Predesktop Errors without messages ProblemSolution My screen goes blank while the computer is on Password problem Power switch problemKeyboard problems UltraNav problems Standby or hibernation problems If these items are correct, have the computer serviced Select Timer Wake with Battery Operation by pressing Enter Computer screen problems Click Power ManagementBattery problems Click AdvancedHard disk drive problems Startup problem Fingerprint authentication problems Other problems Solution Problem Starting Bios Setup Utility Starting Bios Setup Utility Recovering pre-installed softwareRecovering pre-installed software Upgrading the hard disk driveUpgrading the hard disk drive Handling a hard disk driveUpgrading the hard disk drive Replacing the battery Replacing the battery Replacing the battery Getting help and service Getting help and service Getting help on the Web Calling the Customer Support CenterFRU Getting help around the world Appendix A. Wireless related information Wireless interoperabilityUsage environment and your health Authorized Operation Within the United States and Canada Enabling Extended Channel Mode ThinkPad R50 Series Service and Troubleshooting Guide What this Warranty Covers Appendix B. Warranty informationLenovo Statement of Limited Warranty Part 1 General TermsWhat this Warranty Does not Cover How to Obtain Warranty ServiceWhat Lenovo Will Do to Correct Problems Exchange of a Machine or Part Your Additional ResponsibilitiesLimitation of Liability Governing LawPart 2 Country-unique Terms Peru MexicoParaguay UruguayCambodia and Laos United StatesAsia Pacific Australia CAMBODIA, INDONESIA, and LaosIndia NEW Zealand JapanMalaysia PEOPLE’S Republic of China PRCSingapore EUROPE, Middle EAST, Africa EmeaGoverning Law Arbitration The following is added under this heading European Union EU ConsumersThinkPad R50 Series Service and Troubleshooting Guide Following Terms Apply to the Country Specified Austria EgyptFrance Germany HungaryIreland Items for Which Lenovo is Not Liable SlovakiaUnited Kingdom Part 3 Warranty Information Warranty PeriodTypes Types Types of Warranty Service Customer Replaceable Unit ″CRU″ ServiceCustomer Carry-In or Mail-In Service On-site ServiceCourier or Depot Service CRU and On-site ServiceWorldwide telephone list Country or Region Telephone Number Country or Region Telephone Number Guarantee supplement for Mexico ThinkPad R50 Series Service and Troubleshooting Guide Appendix C. Customer Replacement Units CRUs Customer replaceable units CRUsThinkPad R50 Series Service and Troubleshooting Guide Appendix D. Notices Television output notice Electronic emissions noticesIndustry Canada Class B emission compliance statement European Union EMC Directive conformance statementDisposing of a disused lithium battery Handling a disused ThinkPad battery packEnvironmental notices for Japan IBM Lotus Software Offer U. S. Or Canada Latin American CountriesEuropean Countries Trademarks Asia Pacific CountriesThinkPad R50 Series Service and Troubleshooting Guide Index ThinkPad R50 Series Service and Troubleshooting Guide Page Part Number 39T2400

R50 specifications

The Lenovo R50, a part of Lenovo's essential ThinkPad series, was introduced as a reliable and robust laptop designed primarily for business users and professionals. This model showcases Lenovo’s commitment to quality, performance, and ergonomics, making it a popular choice among corporate users and students alike.

One of the main features of the Lenovo R50 is its durable design. It sports a sturdy chassis that meets military-grade specifications for durability, protecting it from unexpected shocks and drops. The ThinkPad series is well-known for its spill-resistant keyboards, a feature that enhances the R50’s practical usability in dynamic work environments.

Performance-wise, the R50 is typically powered by Intel’s Pentium or early-core processors, providing sufficient power for everyday tasks such as word processing, spreadsheet management, and browsing. The device can come equipped with various memory configurations, often available with up to 2GB of RAM and either conventional hard drives or early solid-state drives, facilitating quicker system performance and improved access times.

The Lenovo R50 also emphasizes connectivity and expansion. It features multiple USB ports, a serial port, and a PC Card slot for adding functionalities. Ethernet and modem ports ensure reliable wired connections, while Wi-Fi capabilities enhance mobility.

Display quality is another appealing aspect of the R50, featuring a 15-inch screen that offers a native resolution typically of 1024x768 or higher, yielding a decent visual experience for document editing and presentations. The anti-glare coating assists in maintaining visibility under varying light conditions, an important factor for users working outdoors or in bright office spaces.

Another significant characteristic of the R50 is its renowned keyboard. Lenovo’s ThinkPad keyboards are legendary for their tactile feedback and comfort, which significantly enhances the typing experience. The keyboard also includes a TrackPoint, allowing for precise cursor control without needing to shift hands from the keyboard.

In terms of software, the Lenovo R50 usually runs on Windows operating systems, providing users with a familiar interface and access to a vast array of applications suitable for business and personal use.

Overall, the Lenovo R50 stands out for its blend of durability, performance, and user-centric features, making it a trustworthy companion for anyone seeking a reliable laptop to manage their daily tasks efficiently.
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