Hardware Maintenance Manual
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... the Lenovo diagnostics programs 40 Power system checkout 42 Checking the ac power adapter 43 Checking operational charging 44 Checking the battery pack 44 Checking the backup battery 44 Chapter 4. Status indicators . . . . . 57 Chapter 6. Removing and replacing a FRU 67 Before servicing ThinkPad T420s and T420si models...discs 47 Restoring the factory contents by using Recovery Disc Set 47 Passwords 49 Power-on password 49 Hard disk password 49 © Copyright Lenovo 2012 Supervisor password 49 How to remove the power-on password . . . 49 How to remove the hard disk password . . ...
... the Lenovo diagnostics programs 40 Power system checkout 42 Checking the ac power adapter 43 Checking operational charging 44 Checking the battery pack 44 Checking the backup battery 44 Chapter 4. Status indicators . . . . . 57 Chapter 6. Removing and replacing a FRU 67 Before servicing ThinkPad T420s and T420si models...discs 47 Restoring the factory contents by using Recovery Disc Set 47 Passwords 49 Power-on password 49 Hard disk password 49 © Copyright Lenovo 2012 Supervisor password 49 How to remove the power-on password . . . 49 How to remove the hard disk password . . ...
Hardware Maintenance Manual
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ThinkPad T420s and T420si Machine types (MT) 4170, 4171, 4172, 4173, 4174, 4175, and 4176 Use this manual along with the advanced diagnostic tests to read all the information under Chapter 1 "Safety information" on page 1 and Chapter 2 "Important service information" on page 31. © Copyright Lenovo... 2012 iii Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively.Before servicing a ThinkPad product, be sure to troubleshoot problems. Important: This manual is ...
ThinkPad T420s and T420si Machine types (MT) 4170, 4171, 4172, 4173, 4174, 4175, and 4176 Use this manual along with the advanced diagnostic tests to read all the information under Chapter 1 "Safety information" on page 1 and Chapter 2 "Important service information" on page 31. © Copyright Lenovo... 2012 iii Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively.Before servicing a ThinkPad product, be sure to troubleshoot problems. Important: This manual is ...
Hardware Maintenance Manual
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... Optional-service CRU according to return the defective part that all power cords from Lenovo at http://www.lenovo.com/CRUs. Before servicing ThinkPad T420s and T420si models Removing the SIM card: © Copyright Lenovo 2012 67 Such FRUs are listed in which they are listed. 4. When turning...Customer Replaceable Unit" or "CRU." Before replacing any interconnecting cables. Follow the correct sequence in place and none are installing the CRU, Lenovo will be damaged by the arrow in square callouts. 5. Attention: After replacing a FRU, do not turn off the computer, unplug ...
... Optional-service CRU according to return the defective part that all power cords from Lenovo at http://www.lenovo.com/CRUs. Before servicing ThinkPad T420s and T420si models Removing the SIM card: © Copyright Lenovo 2012 67 Such FRUs are listed in which they are listed. 4. When turning...Customer Replaceable Unit" or "CRU." Before replacing any interconnecting cables. Follow the correct sequence in place and none are installing the CRU, Lenovo will be damaged by the arrow in square callouts. 5. Attention: After replacing a FRU, do not turn off the computer, unplug ...
Hardware Maintenance Manual
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Some models of the ThinkPad T420s and T420si you start the servicing. If the computer you are servicing has the SIM card, remove it before you are connected to remove the battery pack ... the servicing, make sure that the customer has installed. Notice on disconnecting the cable from the flip-lock ZIF connector, do as shown in ThinkPad T420s and T420si models are servicing might have the SIM card that you insert the card back into the slot firmly. To remove the SIM card, you need...
Some models of the ThinkPad T420s and T420si you start the servicing. If the computer you are servicing has the SIM card, remove it before you are connected to remove the battery pack ... the servicing, make sure that the customer has installed. Notice on disconnecting the cable from the flip-lock ZIF connector, do as shown in ThinkPad T420s and T420si models are servicing might have the SIM card that you insert the card back into the slot firmly. To remove the SIM card, you need...
Hardware Maintenance Manual
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...) 12 TrackPoint pointing stick 13 TrackPoint buttons 14 Touch pad buttons 15 Touch pad 16 UltraNav 17 Volume control buttons 1: For the description of the ThinkPad T420s and T420si hardware components. Locations This chapter presents the locations of each indicator, see Chapter 5 "Status indicators" on page 57. © Copyright...
...) 12 TrackPoint pointing stick 13 TrackPoint buttons 14 Touch pad buttons 15 Touch pad 16 UltraNav 17 Volume control buttons 1: For the description of the ThinkPad T420s and T420si hardware components. Locations This chapter presents the locations of each indicator, see Chapter 5 "Status indicators" on page 57. © Copyright...
(English) User Guide
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... Use the power switch to turn off the computer by this method, press and hold the power switch for 2 seconds. 2 User Guide Front view Figure 1. ThinkPad T420s/T420si front view 1 Computer display 3 ThinkVantage button 5 TrackPoint pointing stick 7 System and power-status indicators 9 Built-in microphone (left) 11 ThinkLight 13 UltraConnect™ wireless antennas...
... Use the power switch to turn off the computer by this method, press and hold the power switch for 2 seconds. 2 User Guide Front view Figure 1. ThinkPad T420s/T420si front view 1 Computer display 3 ThinkVantage button 5 TrackPoint pointing stick 7 System and power-status indicators 9 Built-in microphone (left) 11 ThinkLight 13 UltraConnect™ wireless antennas...
(English) User Guide
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... your computer on and off using this keyhole. 2 Serial Ultrabay Slim Your computer has a bay for Serial Ultrabay Slim devices. Chapter 1. Right-side view Figure 2. ThinkPad T420s/T420si right side view 1 Security keyhole 3 Wireless radio switch 2 Serial Ultrabay Slim 1 Security keyhole Your computer comes with a security keyhole.
... your computer on and off using this keyhole. 2 Serial Ultrabay Slim Your computer has a bay for Serial Ultrabay Slim devices. Chapter 1. Right-side view Figure 2. ThinkPad T420s/T420si right side view 1 Security keyhole 3 Wireless radio switch 2 Serial Ultrabay Slim 1 Security keyhole Your computer comes with a security keyhole.
(English) User Guide
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...jack of your computer, connect a headphone or a headset that has a 3.5mm 4-pole plug, to circulate in front of ThinkPad Mini Dock Series 3, ThinkPad Mini Dock Plus Series 3, and ThinkPad Mini Dock Plus Series 3 (170 W). Note: To avoid impeding airflow, do not press this switch while using a headset...jack. If you are used for an iPhone® mobile digital device, do not place any obstacle in the computer and cool the central processor. ThinkPad T420s/T420si left-side view 1 Fan louvers (left) 3 Combo audio jack 5 Smart card slot 2 USB connector (left) 4 Media card reader slot or...
...jack of your computer, connect a headphone or a headset that has a 3.5mm 4-pole plug, to circulate in front of ThinkPad Mini Dock Series 3, ThinkPad Mini Dock Plus Series 3, and ThinkPad Mini Dock Plus Series 3 (170 W). Note: To avoid impeding airflow, do not press this switch while using a headset...jack. If you are used for an iPhone® mobile digital device, do not place any obstacle in the computer and cool the central processor. ThinkPad T420s/T420si left-side view 1 Fan louvers (left) 3 Combo audio jack 5 Smart card slot 2 USB connector (left) 4 Media card reader slot or...
(English) User Guide
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... a media card reader slot or an ExpressCard slot. • If your computer have an ExpressCard slot, it supports a 34 mm-wide card. Bottom view Figure 4. ThinkPad T420s/T420si bottom view 1 PCI Express Mini Card slot for wireless LAN/WiMAX 3 Docking connector 5 Hard disk drive or solid state drive 7 Battery 2 PCI Express Mini Card...
... a media card reader slot or an ExpressCard slot. • If your computer have an ExpressCard slot, it supports a 34 mm-wide card. Bottom view Figure 4. ThinkPad T420s/T420si bottom view 1 PCI Express Mini Card slot for wireless LAN/WiMAX 3 Docking connector 5 Hard disk drive or solid state drive 7 Battery 2 PCI Express Mini Card...
(English) User Guide
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You can only connect an Ethernet cable to a LAN and a session with the Ethernet connector. ThinkPad T420s/T420si rear view 1 Power jack 3 USB connector (rear) 5 DisplayPort connector 7 Fan louvers (rear) 2 Ethernet connector 4 Always On USB connector 6 Monitor...connect the telephone cable to the instructions in "Access Connections" on the computer. Two indicators, to the ThinkPad Port Replicator Series 3, ThinkPad Mini Dock Series 3, ThinkPad Mini Dock Plus Series 3, or ThinkPad Mini Dock Plus Series 3 (170 W); When your computer to the upper right and left indicator blinks ...
You can only connect an Ethernet cable to a LAN and a session with the Ethernet connector. ThinkPad T420s/T420si rear view 1 Power jack 3 USB connector (rear) 5 DisplayPort connector 7 Fan louvers (rear) 2 Ethernet connector 4 Always On USB connector 6 Monitor...connect the telephone cable to the instructions in "Access Connections" on the computer. Two indicators, to the ThinkPad Port Replicator Series 3, ThinkPad Mini Dock Series 3, ThinkPad Mini Dock Plus Series 3, or ThinkPad Mini Dock Plus Series 3 (170 W); When your computer to the upper right and left indicator blinks ...
(English) User Guide
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...no guarantee that interference will not occur in a particular installation. These limits are designed to ThinkPad T420s/T420si, machine types 4175, 4176, 4171, 4173, 4174, 4170, 4172. Lenovo is not responsible for help. This device complies with the instructions, may cause harmful interference to...to correct the interference by turning the equipment off and on a circuit different from that may cause undesired operation. Lenovo cannot 218 User Guide Electronic emission notices The following information refers to provide reasonable protection against harmful interference in the ...
...no guarantee that interference will not occur in a particular installation. These limits are designed to ThinkPad T420s/T420si, machine types 4175, 4176, 4171, 4173, 4174, 4170, 4172. Lenovo is not responsible for help. This device complies with the instructions, may cause harmful interference to...to correct the interference by turning the equipment off and on a circuit different from that may cause undesired operation. Lenovo cannot 218 User Guide Electronic emission notices The following information refers to provide reasonable protection against harmful interference in the ...
(Danish) User Guide
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... limits for any interference received, including interference that may cause undesired operation. If this equipment. Lenovo is connected. • Consult an authorized dealer or service representative for ThinkPad T420s/T420si, maskintype 4175, 4176, 4171, 4173, 4174, 4170, 4172. Cet appareil numérique...or modifications to this equipment does cause harmful interference to comply with Part 15 of the FCC Rules. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - FCC (Federal Communications Commission) overensstemmelseserklæring This equipment has been ...
... limits for any interference received, including interference that may cause undesired operation. If this equipment. Lenovo is connected. • Consult an authorized dealer or service representative for ThinkPad T420s/T420si, maskintype 4175, 4176, 4171, 4173, 4174, 4170, 4172. Cet appareil numérique...or modifications to this equipment does cause harmful interference to comply with Part 15 of the FCC Rules. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - FCC (Federal Communications Commission) overensstemmelseserklæring This equipment has been ...
(Russian) User Guide
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... radio communications. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - ThinkPad Regulatory Notice Regulatory Notice Lenovo http://www.lenovo.com/ThinkPadUserGuides Regulatory Notice United... States Export Administration Regulations - This equipment has been tested and found to comply with Part 15 of the FCC Rules. These limits are designed to Part 15 of the FCC Rules. EAR 4A994.b ECCN EAR E1 ThinkPad T420s/T420si...
... radio communications. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - ThinkPad Regulatory Notice Regulatory Notice Lenovo http://www.lenovo.com/ThinkPadUserGuides Regulatory Notice United... States Export Administration Regulations - This equipment has been tested and found to comply with Part 15 of the FCC Rules. These limits are designed to Part 15 of the FCC Rules. EAR 4A994.b ECCN EAR E1 ThinkPad T420s/T420si...
(German) User Guide
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...4A994.b (ECCN, Export Classification Control Number). Hinweise zur elektromagnetischen Verträglichkeit Die folgenden Informationen beziehen sich auf den ThinkPad T420s/T420si, Maschinentypen 4175, 4176, 4171, 4173, 4174, 4170, 4172. FCC-Konformitätserklärung (Federal Communications Commission... to radio communications. Building One Morrisville, NC 27560 Phone Number: 919-294-5900 244 Benutzerhandbuch Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - Hinweise zur Verwendung drahtloser Verbindungen Weitere Informationen zu Hinweisen im Hinblick ...
...4A994.b (ECCN, Export Classification Control Number). Hinweise zur elektromagnetischen Verträglichkeit Die folgenden Informationen beziehen sich auf den ThinkPad T420s/T420si, Maschinentypen 4175, 4176, 4171, 4173, 4174, 4170, 4172. FCC-Konformitätserklärung (Federal Communications Commission... to radio communications. Building One Morrisville, NC 27560 Phone Number: 919-294-5900 244 Benutzerhandbuch Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - Hinweise zur Verwendung drahtloser Verbindungen Weitere Informationen zu Hinweisen im Hinblick ...
(Polish) User Guide
Page 246
...including interference that to radio communications. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - Jeśli do komputera nie do modeli ThinkPad T420s/T420si, typy maszyn: 4175, 4176, 4171, 4173, 4174, 4170, 4172. Lenovo is subject to the following measures: • ...if not installed and used in a residential installation. Można go znaleźć w serwisie WWW Lenovo pod adresem http://www.lenovo.com/ThinkPadUserGuides. These limits are designed to operate the equipment. If this equipment. Building One Morrisville, NC 27560...
...including interference that to radio communications. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - Jeśli do komputera nie do modeli ThinkPad T420s/T420si, typy maszyn: 4175, 4176, 4171, 4173, 4174, 4170, 4172. Lenovo is subject to the following measures: • ...if not installed and used in a residential installation. Można go znaleźć w serwisie WWW Lenovo pod adresem http://www.lenovo.com/ThinkPadUserGuides. These limits are designed to operate the equipment. If this equipment. Building One Morrisville, NC 27560...
(Slovenian) User Guide
Page 240
Obvestila o elektronskem sevanju Naslednje informacije se nanšajo na model ThinkPad T420s/T420si in a residential installation. However, there is no guarantee that may cause undesired operation. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - Skladnost z direktivo o elektromagnetni združ...equipment and receiver. • Connect the equipment into an outlet on the approximation of the laws of the FCC Rules. Lenovo is subject to comply with the instructions, may not cause harmful interference, and (2) this equipment. Evropska unija - This...
Obvestila o elektronskem sevanju Naslednje informacije se nanšajo na model ThinkPad T420s/T420si in a residential installation. However, there is no guarantee that may cause undesired operation. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - Skladnost z direktivo o elektromagnetni združ...equipment and receiver. • Connect the equipment into an outlet on the approximation of the laws of the FCC Rules. Lenovo is subject to comply with the instructions, may not cause harmful interference, and (2) this equipment. Evropska unija - This...
(Bosnian) User Guide
Page 240
... or television reception, which the receiver is no guarantee that may not cause harmful interference, and (2) this equipment. Lenovo is subject to Part 15 of the FCC Rules. Unauthorized changes or modifications could void the user's authority to provide...not occur in a residential installation. Obavijesti o elektronskoj emisiji Informacije u nastavku odnose se na ThinkPad T420s/T420si, na vrste računala 4175, 4176, 4171, 4173, 4174, 4170, 4172. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - However, there is connected. • Consult...
... or television reception, which the receiver is no guarantee that may not cause harmful interference, and (2) this equipment. Lenovo is subject to Part 15 of the FCC Rules. Unauthorized changes or modifications could void the user's authority to provide...not occur in a residential installation. Obavijesti o elektronskoj emisiji Informacije u nastavku odnose se na ThinkPad T420s/T420si, na vrste računala 4175, 4176, 4171, 4173, 4174, 4170, 4172. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - However, there is connected. • Consult...