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User Guide
ThinkP ad L420, L421, and L520
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Not es: Befor e using this information and the pr oduct it suppor ts, be sur e t o r ead the following: • Safety and W arr anty Guide • ThinkP ad Regulat or y Notice • “Impor tant safety information” on page vi • Appendix C “Notices” on page 201 The Safety and W arr anty Guide and the Regulat or y Notice have been uploaded on the W eb sit e. T o r efer t o them, go t o http://w w w .lenovo.com/suppor t , and then click User Guides & Manuals . Thir d Edition (May 2012) © Copyright L enovo 2012. L
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Contents Read this first . . . . . . . . . . . . . . v V olume and mut e butt ons . . . . . . . . 30 Impor tant safety information . . . . . . . . . . vi W indows k ey and Application k ey . . . . . 31 Conditions that r equir e immediat e action . . vii Using the Ultr aNav pointing device . . . . . . . 32 Safety guidelines . . . . . . . . . . . . vii Using the T r ackP oint pointing device . . . . 33 Using the t ouch pad . . . . . . . . . . . 34 Chapt er 1. P r oduct Over view . . . . . . 1 Beha
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P asswor ds and sleep (standby) mode . . . . 68 A ttaching a ThinkP ad por t r eplicat or or docking station . . . . . . . . . . . . . 125 Using P assphr ase . . . . . . . . . . . 68 Detaching a ThinkP ad por t r eplicat or or P ower -on passwor d . . . . . . . . . . . 70 docking station . . . . . . . . . . . . . 127 Har d disk passwor ds . . . . . . . . . . 71 Security featur e . . . . . . . . . . . . 128 Super visor passwor d . . . . . . . . . . 73 Using the syst em lock k ey . . . . . . . . 1
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Err or messages and beep err ors . . . . . . 159 Eur opean Union - Compliance t o the Electr omagnetic Compatibility Dir ective . . . 194 Err ors without messages . . . . . . . . . 161 German Class B compliance stat ement . . . 194 Memor y pr oblems . . . . . . . . . . . 162 K or ea Class B compliance stat ement . . . . 195 Networking . . . . . . . . . . . . . . 163 Japan VCCI Class B compliance stat ement . . 195 K eyboar d and other pointing devices . . . . 167 Japan compliance stat ement for
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iv User Guide
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Read this first Be sur e t o follow the impor tant tips given her e t o continue t o get the most use and enjoyment out of your comput er . F ailur e t o do so might lead t o discomfor t or injur y, or cause your comput er t o fail. When your comput er is turned on or the batt er y is char ging, the base, the palm r est, and some other par ts may become hot. The t emper atur e they r each depends on the amount of syst em activity and the level of char ge in the batt er y . Ext ended contact with
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P r ot ect your comput er and data when moving it. Befor e moving a comput er equipped with a har d disk drive, do one of the following, and mak e sur e that the “power switch” on page 9 is off or is blinking: • T urn it off. • P r ess Fn+F4 t o put it in sleep (standby) mode • P r ess Fn+F12 t o put it in hibernation mode. This will help t o pr event damage t o the comput er , and possible loss of data. Handle your comput er gently . • Do not dr op, bump, scr atch, twist, hit, vibr at e, push,
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Conditions that r equir e immediat e action P r oducts can become damaged due t o misuse or neglect. Some pr oduct damage is serious enough that the pr oduct should not be used again until it has been inspect ed and, if necessar y, r epair ed by an authoriz ed ser vicer . As with any electr onic device, pay close att ention t o the pr oduct when it is turned on. On ver y r ar e occasions, you might notice an odor or see a puff of smok e or sparks vent fr om your pr oduct. Or you might hear sound
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cust omers t o install options or r eplace CRUs. Y ou must closely follow all instructions when installing or r eplacing par ts. The Off stat e of a power indicat or does not necessarily mean that voltage levels inside a pr oduct ar e z er o. Befor e you r emove the covers fr om a pr oduct equipped with a power cor d, always mak e sur e that the power is turned off and that the pr oduct is unplugged fr om any power sour ce. F or mor e information on CRUs, r efer t o the Replacing devices for thi
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Do not use any power adapt er that shows corr osion at the A C input pins or shows signs of overheating (such as deformed plastic) at the A C input or anywher e on the power adapt er . Do not use any power cor ds wher e the electrical contacts on either end show signs of corr osion or overheating or wher e the power cor d appears t o have been damaged in any way . Ext ension cor ds and r elat ed devices Ensur e that e xt ension cor ds, sur ge pr ot ect ors, unint erruptible power supplies, and p
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Hazar dous voltage, curr ent, and ener gy levels ar e pr esent inside any component that has this label attached. Ther e ar e no ser viceable par ts inside these components. If you suspect a pr oblem with one of these par ts, contact a ser vice t echnician. Ext ernal devices C A UTION: Do not connect or disconnect any e xt ernal device cables other than Universal Serial Bus (USB) and 1394 cables while the comput er power is on; other wise, you might damage your comput er . T o avoid possible dam
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Rechar geable batt er y notice D ANGER Do not att empt t o disassemble or modify the batt er y pack. A tt empting t o do so can cause an e xplosion, or liquid leakage fr om the batt er y pack. A batt er y pack other than the one specified by L enovo, or a disassembled or modified batt er y pack is not cover ed by the warr anty . If the r echar geable batt er y pack is incorr ectly r eplaced, ther e is danger of an e xplosion. The batt er y pack contains a small amount of harmful substances. T o
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Heat and pr oduct ventilation D ANGER Comput ers, ac power adapt ers, and many accessories can gener at e heat when turned on and when batt eries ar e char ging. Not ebook comput ers can gener at e a significant amount of heat due t o their compact siz e. Always follow these basic pr ecautions: • When your comput er is turned on or the batt er y is char ging, the base, the palm r est, and some other par ts may become hot. A void k eeping your hands, your lap, or any other par t of your body in c
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• Air flow t emper atur es int o the comput er should not e x ceed 35°C (95°F). Electrical curr ent safety information D ANGER Electric curr ent fr om power , t elephone, and communication cables is hazar dous. T o avoid a shock hazar d: • Do not use your comput er during a lightning st orm. • Do not connect or disconnect any cables or per form installation, maint enance, or r econfigur ation of this pr oduct during an electrical st orm. • Connect all power cor ds t o a pr operly wir ed and gr o
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• Use of contr ols or adjustments or per formance of pr ocedur es other than those specified her ein might r esult in hazar dous r adiation e xposur e. D ANGER Some laser pr oducts contain an embedded Class 3A or Class 3B laser diode. Not e the following. Laser r adiation when open. Do not star e int o the beam, do not view dir ectly with optical instruments, and avoid dir ect e xposur e t o the beam. Liquid cr ystal display notice C A UTION: F or pr oducts with mer cur y-containing fluor escent
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D ANGER Do not connect phone line while using tablet mode. Notice for users in the U .S.A. Many PC pr oducts and accessories contain cor ds, cables or wir es, such as power cor ds or cor ds t o connect the accessor y t o a PC. If this pr oduct has such a cor d, cable or wir e, then the following warning applies: W ARNING Handling the cor d on this pr oduct or cor ds associat ed with accessories sold with this pr oduct will e xpose you t o lead, a chemical known t o the S tat e of C alifornia t o
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xvi User Guide
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Chapt er 1. P r oduct Over view This chapt er pr ovides information about the locations of connect ors, locating impor tant pr oduct information, comput er featur es, specifications, oper ating envir onment, and pr einstalled softwar e pr ogr ams. This chapt er contains the following t opics: • “L ocating comput er contr ols, connect ors, featur es, and indicat ors” on page 1 • “L ocating impor tant pr oduct information” on page 11 • “F eatur es” on page 13 • “Specifications” on page 14 • “Oper
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F r ont view Figur e 1. ThinkP ad L420 and L520 fr ont view 2 P ower switch 1 Comput er display 3 Built-in st er eo speak ers 4 T r ackP oint pointing stick 5 T r ackP oint butt ons 6 Built-in st er eo speak ers 7 Ultr aConnect wir eless ant ennas (left) 8 Int egr at ed camer a 9 Built-in micr ophone 10 Ultr aConnect wir eless ant ennas (right) 11 ThinkV antage butt on 12 S yst em-status indicat ors 13 Fingerprint r eader 14 P ower -status indicat ors 15 Bluet ooth ant enna 16 PCI Expr ess Mini
