My screen goes blank while the computer is on | Lenovo 3000 G230

Lenovo G230 UG V1.0_en.book Page 49 Monday, July 28, 2008 7:29 PM

Chapter 4. Troubleshooting

When I turn on the computer, only a white cursor appears on a blank screen.

Restore backed-up files to your Windows environment or the entire contents of your hard disk to the original factory contents using OneKey Recovery. If you still see only the cursor on the screen, have the computer serviced.

My screen goes blank while the computer is on.

Your screen saver or power management may be enabled. Do one of the following to exit from the screen saver or to resume from sleep or hibernation mode:

Touch the touch pad.

Press any key.

Press the Power button.

49

Image 57

Lenovo 3000 G230 manual My screen goes blank while the computer is on

Contents

Lenovo 3000 G230 Lenovo G230 UG V1.0 coveren2-3 If your product is not working correctly Energy Star model information Page Explanation of Hard Disk Capacity Page Contents 130 Contents Safety, Use,Appendix A. Lenovo Limited Appendix B. Customer Top View Getting to Know Your Computer System status indicators Power buttonGetting to Know Your Computer Computer display Left-side View Fan louvers Wireless device switch AC power adapter jack Right-side ViewSecurity keyhole Speakers Front View Bottom View Battery latch spring loaded Getting to Know Your Computer Battery latch manual ƒ Wlan cards compartment Using Your Computer „ Putting Your Computer to Sleep„ Shutting Down Your Computer Using Your Computer Using the Touch Pad „ Numeric Keypad Using the Keyboard „ Function Key Combinations Fn + PrtSc/SysRq System request Special Keys and Buttons „ Function buttonsTouch inductive panel ~ „ OneKey Rescue System button Using the Optical Drive „ Playing CDs/DVDs Disc Media„ Copying files to CDs/DVDs Discs Specific model only Using Memory Cards Using the Integrated Camera „ Inserting a Memory Card„ Removing a Memory Card „ Using LAN Port Using the Internet „ Using wireless LAN „ Using Modem Port Specific model only „ Attaching a Mechanical Lock Optional Securing Your Computer „ Using Passwords To Set a Supervisor Password Select Set Supervisor Password, and press the Enter key Using Your Computer To set a User Password Using Your Computer Changing or Removing the User Password To Set a Hard Disk Password Using Your Computer Hard Disk Passwords Changing or Removing the HDD Passwords Using Your Computer Installing Device Drivers „ Your Computer Batteries Using the Battery and AC Adapter „ Using the AC Adapter „ Checking Battery Status Using Your Computer „ Handling the Battery „ Charging the Battery Using Your Computer Connecting a Universal Serial Bus USB Device Using External Devices Using External Devices Connecting a PC Card Device „ Removing a PCI Express card „ Inserting a PCI Express card „ Connecting a VGA monitor Connecting an External Display Connecting a Headphone and Audio Device Connecting an External Microphone Specific model only „ Enabling Bluetooth communications Frequently Asked Questions Troubleshooting How can I contact the Customer Support Center? Troubleshooting Troubleshooting „ Display ProblemsWhen I turn on the computer, nothing appears on the screen My screen goes blank while the computer is on „ Keyboard Problems „ a Password ProblemForgot my password Number appears when you enter a letter Computer enters sleep mode unexpectedly „ Sleep or Hibernation Problems Screen is blank „ Computer Screen Problems Click the Advanced Settings button Troubleshooting Screen is unreadable or distorted Troubleshooting Incorrect characters appear on the screen „ Sound Problems „ Battery ProblemsOperating time for a fully charged battery is short „ a Startup Problem „ a Hard Disk Drive ProblemBattery does not charge Hard disk drive does not work „ Other Problems Your computer does not respondComputer does not start from a device you want Getting Help and Service Getting Help and Service Getting Help on the Web Getting Help and Service Getting Help and Service Getting Help and Service Getting Help Around the World Important Safety Information Safety, Use, and Care Information „ Conditions That Require Immediate Action Safety, Use, and Care Information „ Safety Guidelines „ Service and Upgrades „ Power Cords and Power Adapters Safety, Use, and Care Information „ Plugs and Outlets „ Extension Cords and Related Devices „ Power Supply Statement „ Lithium Coin Cell Battery Notice „ Heat and Product Ventilation Safety, Use, and Care Information „ CD and DVD Drive Safety „ Electrical Current Safety Information Safety, Use, and Care Information „ Laser Compliance Statement Safety, Use, and Care Information „ Liquid Crystal Display LCD Notice Caring Your Computer „ Be Careful about Where and How You Work Safety, Use, and Care Information Safety, Use, and Care Information „ Be Gentle with Your Computer „ Carry Your Computer Properly„ For outdoor use „ Handle Storage Media and Drives Properly „ Data Safety „ Other Important Tips „ Take Care in Setting Passwords „ Cleaning the Cover of Your Computer „ Cleaning Your Computer Keyboard „ Cleaning Your Computer Display Accessibility and Comfort „ Ergonomic Information Safety, Use, and Care Information Maintenance „ What If You are Traveling?„ Questions about Vision? „ General Tips for Maintenance Safety, Use, and Care Information Safety, Use, and Care Information „ What this Warranty Covers Appendix A. Lenovo Limited Warranty „ How to Obtain Warranty Service „ What Your Service Provider Will Do to Correct ProblemsAppendix A. Lenovo Limited Warranty „ Replacement of a Product or Part „ Use of Personal Information „ Your Additional Responsibilities „ What this Warranty Does not Cover 100 „ Limitation of Liability 101 „ Dispute Resolution „ Other Rights „ European Economic Area EEA102 103 Warranty Information „ Types of Warranty Service Customer Replaceable Unit CRU Service104 Courier or Depot Service On-site ServiceCustomer Carry-In or Mail-In Service 105 Product Exchange Service Warranty Service Telephone Numbers106 SMS 107 108 109 Appendix B. Customer Replaceable Units CRUs Specifications Appendix C. SpecificationsBattery pack 110 111 Appendix D. Notices Appendix D. Notices 112 „ Export classification notice „ Television output notice113 Wireless related information „ Wireless Interoperability114 115 „ Usage Environment and Your Health 116 Electronic Emissions Notices „ Federal Communications Commission FCC Statement117 „ Industry Canada Class B Emission Compliance Statement „ Avis de conformité à la réglementation d’Industrie Canada118 119 „ German Class B Compliance Statement 120 „ European Union Compliance Statement Class B Compliance 121 „ Japanese Vcci Class B Statement „ Japan Compliance Statement for Power line Harmonics „ Korea Class B122 Weee and Recycling Statements „ General Recycling Statement123 124 EU Weee Statements 125 Japan Recycling Statements 126 „ Disposing of a Lenovo Computer Components 127 128 129 Trademarks 130 Index 131 Problems Index 132