Lenovo 628323U manual Battery and power problems, Battery problems, Power problems

Page 62

•Problem: When you connect a headphone to your computer while playing sound, a speaker does not produce sound.

Solution: Once the headphone is attached, the streaming is automatically redirected to it. If you want to listen to sound from the speakers again, be sure to set those speakers as the default device. For details, refer to the help information system for Realtek HD Audio.

Battery and power problems

This topic contains instructions on troubleshooting battery and power problems.

Battery problems

•Problem: The battery pack cannot be fully charged in the standard charge time when the computer is powered off.

Solution: The battery pack might be over-discharged. Do the following:

1.Turn off the computer.

2.Ensure that the over-discharged battery pack is in the computer.

3.Connect the ac power adapter to the computer and let it charge.

If a quick charger is available, use it to charge the over-discharged battery pack.

If the battery pack cannot be fully charged in 24 hours, use a new battery pack.

•Problem: Your computer shuts down before the battery status indicator shows empty, or your computer operates after the battery status indicator shows empty.

Solution: Discharge and recharge the battery pack.

•Problem: The operating time for a fully charged battery pack is short.

Solution: Discharge and recharge the battery pack. If your battery operating time is still short, use a new battery pack.

•Problem: The computer does not operate with a fully charged battery pack.

Solution: The surge protector in the battery pack might be active. Turn off the computer for one minute to reset the protector; then turn on the computer again.

•Problem: The battery pack cannot be charged.

Solution: You cannot charge the battery when it is too hot. If the battery feels hot, remove it from the computer and allow it to cool to room temperature. After it cools, reinstall it and recharge the battery. If it still cannot be charged, have it serviced.

This system supports only batteries specially designed for this specific system and manufactured by Lenovo or an authorized builder. The system does not support unauthorized batteries or batteries designed for other systems. If an unauthorized battery or a battery designed for another system is installed, the system will not charge.

Attention: Lenovo has no responsibility for the performance or safety of unauthorized batteries, and provides no warranties for failures or damage arising out of their use.

Power problems

Print these instructions now and keep it with your computer for reference later.

48User Guide

Page 61 Page 63
Image 62
Page 61 Page 63
Contents User Guide Safety, Warranty, and Setup Guide Regulatory Notice Contents Appendix B. Weee and recycling Statements Prevent your computer from getting wet Read this firstProtect yourself from the heat that your computer generates Protect the cables from being damagedHandle your computer gently Important safety informationConditions that require immediate action Carry your computer carefullySafety guidelines Service and upgradesPower cords and power adapters Extension cords and related devicesExternal devices Power supply statementPlugs and outlets General battery notice Rechargeable battery noticeElectrical current safety information Heat and product ventilationUsing headphones or earphones Liquid crystal display LCD noticeAdditional safety information Xii User Guide Front view Locating computer controls, connectors, and indicatorsProduct overview CameraRight-side view System status indicatorPower button MicrophoneAc power connector USB 2.0 connectorPower status indicator Media card reader slotEthernet connector VGA connectorUSB 3.0 connectors Left-side viewBottom view Status indicatorsSystem status indicators User Guide Locating important product information Wireless status indicatorPower status indicator Machine type and model labelFCC ID and IC Certification number label Features SpecificationsBattery life Power source ac power adapterBattery pack Operating environmentHow can I use the battery power more effectively? Using your computerFrequently asked questions Registering your computerHow do I attach or replace a device? Special keysHow do I give presentations or attach an external monitor? Using the UltraNav pointing device Using the TrackPoint pointing deviceCustomizing the touch pad Using the touch padChanging the cap Using the ac power adapter Power managementChecking the battery status Connecting the ac power adapterPower-saving modes Charging the batteryMaximizing the battery life Handling the batteryUsing your computer Go to Settings Internet connection Wi-Fi network Connecting to a wireless LANEstablishing wireless LAN connections Wireless LAN connection statusConnecting an external monitor Connecting a projector or an external monitorTips for using the wireless LAN feature Attaching an external monitorUsing a flash media card Using audio featuresUsing the camera Inserting a flash media card Removing a flash media cardUser Guide Ergonomic information Accessibility and comfortYou and your computer Accessibility information ComfortTravel tips Travel accessoriesTraveling with your computer Assistive technologiesUser Guide Static electricity prevention Replacing the batteryReplacing devices User Guide Before you start, print these instructions User Guide Replacing devices Replacing a memory module Replacing devices Replacing the keyboard Replacing devices Installing the keyboard Replacing devices User Guide Replacing devices User Guide Taking care of your computer Troubleshooting computer problemsBe careful about where and how you work Be gentle with your computerCleaning the cover of your computer Cleaning your computer display Computer stops respondingEthernet problems Memory module problemsNetworking problems Spills on the keyboardAn UltraNav pointing device problem Wireless LAN problemProblems with the keyboard and other pointing devices SolutionComputer screen problems Keyboard problemsProblems with the display and multimedia devices External monitor problems Audio problemsPower problems Battery and power problemsBattery problems Power button problem Sleep problemsUser Guide Before you contact Lenovo Getting help and serviceGetting support Telephone numbers Lenovo Support Web siteCalling Lenovo Purchasing additional services Finding ThinkPad optionsUser Guide Wireless interoperability Wireless related informationLocation of the UltraConnect wireless antennas Appendix A. Regulatory informationElectronic emission notices Locating wireless regulatory noticesExport classification notice Federal Communications Commission Declaration of ConformityAppendix A. Regulatory information User Guide Appendix B. Weee and recycling statements Important Weee informationUser Guide Power plan Energy Saver settings when plugged into ac power Appendix C. Energy Star model informationUser Guide Appendix D. Notices Trademarks Page Part Number Printed 1P P/N
Top Page Image Contents