„ Computer Screen Problems, Screen is blank | Lenovo 3000 G230

Lenovo G230 UG V1.0_en.book Page 52 Monday, July 28, 2008 7:29 PM

Chapter 4. Troubleshooting

If the sleep indicator is on, your computer is in sleep mode. Connect the AC adapter to the computer, then press any key or the Power button.

If the sleep indicator is off, your computer is in sleep/hibernation mode or power-off state. Connect the AC adapter to the computer; then press the Power button to resume operation.

If the system still does not return from sleep mode, your system has stopped responding, and you cannot turn off the computer; reset the computer (unsaved data may be lost) To reset the computer, press and hold the Power button for 4 seconds or more. If the computer is still not reset, remove the AC adapter and the battery.

Computer Screen Problems

The screen is blank.

Do the following:

If you are using the AC adapter, or using the battery, and the battery

status indicator is on (is blue), press Fn + to make the screen brighter.

If the Power indicator is in blinking blue, press any key or the Power button to resume from the sleep mode.

If you still have the problem, do the Solution in the following problem “The screen is unreadable or distorted.”

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Lenovo 3000 G230 manual „ Computer Screen Problems, Screen is blank

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 AC power adapter jack Right-side ViewSecurity keyhole Front View Speakers Bottom View Getting to Know Your Computer Battery latch manual Battery latch spring loaded ƒ Wlan cards compartment Using Your Computer „ Putting Your Computer to Sleep„ Shutting Down Your Computer Using Your Computer Using the Touch Pad Using the Keyboard „ Numeric Keypad „ 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 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? Troubleshooting „ Display ProblemsWhen I turn on the computer, nothing appears on the screen 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 „ Sound Problems „ Battery ProblemsOperating time for a fully charged battery is short „ a Hard Disk Drive Problem „ a Startup 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 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 „ Be Gentle with Your Computer „ Carry Your Computer Properly„ For outdoor use „ 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 Maintenance „ What If You are Traveling?„ Questions about Vision? „ General Tips for Maintenance Safety, Use, and Care Information Safety, Use, and Care Information Appendix A. Lenovo Limited Warranty „ What this Warranty Covers „ How to Obtain Warranty Service „ What Your Service Provider Will Do to Correct ProblemsAppendix A. Lenovo Limited Warranty „ 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 „ Other Rights „ European Economic Area EEA102 Warranty Information 103 „ Types of Warranty Service Customer Replaceable Unit CRU Service104 On-site Service Courier or Depot ServiceCustomer Carry-In or Mail-In Service 105 Product Exchange Service Warranty Service Telephone Numbers106 107 SMS 108 Appendix B. Customer Replaceable Units CRUs 109 Appendix C. Specifications SpecificationsBattery pack 110 Appendix D. Notices 111 112 Appendix D. Notices „ Export classification notice „ Television output notice113 Wireless related information „ Wireless Interoperability114 „ Usage Environment and Your Health 115 116 Electronic Emissions Notices „ Federal Communications Commission FCC Statement117 „ Industry Canada Class B Emission Compliance Statement „ Avis de conformité à la réglementation d’Industrie Canada118 „ German Class B Compliance Statement 119 „ European Union Compliance Statement Class B Compliance 120 „ Japanese Vcci Class B Statement 121 „ Japan Compliance Statement for Power line Harmonics „ Korea Class B122 Weee and Recycling Statements „ General Recycling Statement123 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