Troubleshooting, „ Display Problems | Lenovo 3000 G230 instruction

Lenovo G230 UG V1.0_en.book Page 48 Monday, July 28, 2008 7:29 PM

Chapter 4. Troubleshooting

Troubleshooting ----------------------------------------------------------------------------

If you do not find your problem here, see Chapter 2. The following section only outlines simpler solutions, which may negate the need to refer to the more comprehensive information in Chapter 2.

Display Problems

When I turn on the computer, nothing appears on the screen.

Note:

If you are using an external monitor, see “Computer Screen Problems” on page 52.

If a user password is set, enter the correct password and press Enter.

If the user password prompt does not appear, the brightness level might be set to minimum brightness. Adjust the brightness level by pressing Fn + .

If the screen still remains blank, make sure that:

-The battery is installed correctly.

-The AC adapter is connected to the computer and the power cord is plugged into a working electrical outlet.

-The computer power is on. (Press the Power button again for confirmation.)

If these items are properly set, and the screen remains blank, have the computer serviced.

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Lenovo 3000 G230 manual Troubleshooting, „ Display Problems, When I turn on the computer, nothing appears on the screen

Contents

Lenovo 3000 G230 If your product is not working correctly Lenovo G230 UG V1.0 coveren2-3 Energy Star model information Page Explanation of Hard Disk Capacity Page Contents Contents Safety, Use, 130Appendix A. Lenovo Limited Appendix B. Customer Getting to Know Your Computer Top View Power button System status indicatorsGetting to Know Your Computer Computer display Left-side View Wireless device switch Fan louvers Security keyhole AC power adapter jackRight-side View Front View Speakers Bottom View Getting to Know Your Computer Battery latch manual Battery latch spring loaded ƒ Wlan cards compartment „ Shutting Down Your Computer Using Your Computer„ Putting Your Computer to Sleep Using Your Computer Using the Touch Pad Using the Keyboard „ Numeric Keypad „ Function Key Combinations Fn + PrtSc/SysRq System request Touch inductive panel ~ Special Keys and Buttons„ Function buttons „ OneKey Rescue System button „ Copying files to CDs/DVDs Discs Specific model only Using the Optical Drive„ Playing CDs/DVDs Disc Media Using Memory Cards „ Removing a Memory Card Using the Integrated Camera„ Inserting a Memory Card Using the Internet „ Using LAN Port „ Using wireless LAN „ Using Modem Port Specific model only Securing Your Computer „ Attaching a Mechanical Lock Optional „ 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 Using Your Computer Hard Disk Passwords To Set a Hard Disk Password Changing or Removing the HDD Passwords Using Your Computer Installing Device Drivers Using the Battery and AC Adapter „ Your Computer Batteries „ Checking Battery Status „ Using the AC Adapter Using Your Computer „ Charging the Battery „ Handling the Battery Using Your Computer Using External Devices Connecting a Universal Serial Bus USB Device Connecting a PC Card Device Using External Devices „ Inserting a PCI Express card „ Removing a PCI Express card Connecting an External Display „ Connecting a VGA monitor Connecting a Headphone and Audio Device Connecting an External Microphone „ Enabling Bluetooth communications Specific model only Troubleshooting Frequently Asked Questions Troubleshooting How can I contact the Customer Support Center? When I turn on the computer, nothing appears on the screen Troubleshooting„ Display Problems My screen goes blank while the computer is on „ a Password Problem „ Keyboard ProblemsForgot my password Number appears when you enter a letter „ Sleep or Hibernation Problems Computer enters sleep mode unexpectedly „ Computer Screen Problems Screen is blank Troubleshooting Screen is unreadable or distorted Click the Advanced Settings button Troubleshooting Incorrect characters appear on the screen Operating time for a fully charged battery is short „ Sound Problems„ Battery Problems „ a Hard Disk Drive Problem „ a Startup ProblemBattery does not charge Hard disk drive does not work Computer does not start from a device you want „ Other ProblemsYour computer does not respond Getting Help and Service Getting Help and Service Getting Help and Service Getting Help on the Web Getting Help and Service Getting Help and Service Getting Help Around the World Safety, Use, and Care Information Important Safety Information Safety, Use, and Care Information „ Conditions That Require Immediate Action „ Safety Guidelines „ Service and Upgrades „ Power Cords and Power Adapters Safety, Use, and Care Information „ Extension Cords and Related Devices „ Plugs and Outlets „ 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 „ Be Careful about Where and How You Work Caring Your Computer Safety, Use, and Care Information Safety, Use, and Care Information „ For outdoor use „ Be Gentle with Your Computer„ Carry Your Computer Properly „ Data Safety „ Handle Storage Media and Drives Properly „ Take Care in Setting Passwords „ Other Important Tips „ Cleaning the Cover of Your Computer „ Cleaning Your Computer Keyboard Accessibility and Comfort „ Cleaning Your Computer Display „ Ergonomic Information Safety, Use, and Care Information „ Questions about Vision? Maintenance„ What If You are Traveling? „ General Tips for Maintenance Safety, Use, and Care Information Safety, Use, and Care Information Appendix A. Lenovo Limited Warranty „ What this Warranty Covers Appendix A. Lenovo Limited Warranty „ How to Obtain Warranty Service„ What Your Service Provider Will Do to Correct Problems „ Replacement of a Product or Part „ Your Additional Responsibilities „ Use of Personal Information „ What this Warranty Does not Cover „ Limitation of Liability 100 „ Dispute Resolution 101 102 „ Other Rights„ European Economic Area EEA Warranty Information 103 104 „ Types of Warranty ServiceCustomer Replaceable Unit CRU Service On-site Service Courier or Depot ServiceCustomer Carry-In or Mail-In Service 105 106 Product Exchange ServiceWarranty Service Telephone Numbers 107 SMS 108 Appendix B. Customer Replaceable Units CRUs 109 Appendix C. Specifications SpecificationsBattery pack 110 Appendix D. Notices 111 112 Appendix D. Notices 113 „ Export classification notice„ Television output notice 114 Wireless related information„ Wireless Interoperability „ Usage Environment and Your Health 115 116 117 Electronic Emissions Notices„ Federal Communications Commission FCC Statement 118 „ Industry Canada Class B Emission Compliance Statement„ Avis de conformité à la réglementation d’Industrie Canada „ German Class B Compliance Statement 119 „ European Union Compliance Statement Class B Compliance 120 „ Japanese Vcci Class B Statement 121 122 „ Japan Compliance Statement for Power line Harmonics„ Korea Class B 123 Weee and Recycling Statements„ General Recycling Statement EU Weee Statements 124 Japan Recycling Statements 125 „ Disposing of a Lenovo Computer Components 126 127 128 Trademarks 129 Index 130 Problems 131 132 Index