Lenovo ThinkPad T420si (English) User Guide - Page 5
Appendix B. WEEE and recycling, Appendix D. Restriction of Hazardous
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Cleaning the cover of your computer . . . . 178 Chapter 10. Troubleshooting computer problems 181 Diagnosing problems 181 Troubleshooting 182 Computer stops responding 182 Spills on the keyboard 183 Error messages 183 Errors without messages 185 Beep errors 186 Memory problems 187 Networking 187 Keyboard and other pointing devices . . . . 191 Display and multimedia devices 193 Fingerprint reader problems 202 Battery and power 203 Drives and other storage devices . . . . . 206 Software problems 208 Ports and connectors 209 Universal Serial Bus problems 209 A docking station or port replicator problem 209 Chapter 11. Getting support . . . . 211 Before you contact Lenovo 211 Register your computer 211 Download system updates 211 Record information 211 Getting help and service 212 Using diagnostic programs 212 Lenovo Support Web site 212 Calling Lenovo 212 Purchasing additional services 213 Appendix A. Regulatory information 215 Wireless related information 215 Location of the UltraConnect wireless antennas 216 Locating wireless regulatory notices . . . . 217 Export classification notice 218 Electronic emission notices 218 Federal Communications Commission Declaration of Conformity 218 Industry Canada Class B emission compliance statement 218 European Union - Compliance to the Electromagnetic Compatibility Directive . . . 218 German Class B compliance statement . . . 219 Korea Class B compliance statement . . . . 219 Japanese VCCI Class B statement . . . . . 220 Japan compliance statement for products which connect to the power mains with rated current less than or equal to 20 A per phase 220 Lenovo product service information for Taiwan 220 Appendix B. WEEE and recycling statements 221 Important WEEE Information 221 Japan recycling statements 221 Battery recycling information for Brazil . . . . . 222 Battery recycling information for Taiwan . . . . . 222 Battery recycling information for European Union 223 Battery recycling information for United States and Canada 223 Appendix C. Notices 225 Trademarks 226 Appendix D. Restriction of Hazardous Substances Directive (RoHS) . . . . 227 China RoHS 227 Turkish RoHS 227 Ukraine RoHS 227 India RoHS 228 © Copyright Lenovo 2012 iii