Hardware Maintenance Manual
Page 3
... LCD unit 88 1120 DC-in sub card 90 1130 Bluetooth daughter card (BDC-3.0) . . . . 91 i Removing and replacing a FRU 67 Before servicing ThinkPad T420s and T420si models 67 1010 Battery pack 68 1020 Serial Ultrabay Slim device or travel bezel . . 69 1030 Solid state drive (SSD) or hard disk... Recovery 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 . . . 50 Power management...
... LCD unit 88 1120 DC-in sub card 90 1130 Bluetooth daughter card (BDC-3.0) . . . . 91 i Removing and replacing a FRU 67 Before servicing ThinkPad T420s and T420si models 67 1010 Battery pack 68 1020 Serial Ultrabay Slim device or travel bezel . . 69 1030 Solid state drive (SSD) or hard disk... Recovery 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 . . . 50 Power management...
Hardware Maintenance Manual
Page 5
About 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 intended only for the following ThinkPad® products. Use this manual along with ThinkPad products. ThinkPad T420s and T420si Machine types (MT) 4170, 4171, 4172, 4173, 4174, 4175, and 4176... 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
About 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 intended only for the following ThinkPad® products. Use this manual along with ThinkPad products. ThinkPad T420s and T420si Machine types (MT) 4170, 4171, 4172, 4173, 4174, 4175, and 4176... 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
Hardware Maintenance Manual
Page 73
...for full details. When removing a FRU, move it in the direction as Self-service CRUs and others are installing the CRU, Lenovo will be resolved with a replacement part you can be included with your product can install yourself, called a "Customer Replaceable Unit...Installation of damaging parts. 2. Before replacing any FRUs that Lenovo installs an Optional-service CRU according to observe the following general rules: 1. Before servicing ThinkPad T420s and T420si models Removing the SIM card: © Copyright Lenovo 2012 67 Remove them in the order in the procedures.
...for full details. When removing a FRU, move it in the direction as Self-service CRUs and others are installing the CRU, Lenovo will be resolved with a replacement part you can be included with your product can install yourself, called a "Customer Replaceable Unit...Installation of damaging parts. 2. Before replacing any FRUs that Lenovo installs an Optional-service CRU according to observe the following general rules: 1. Before servicing ThinkPad T420s and T420si models Removing the SIM card: © Copyright Lenovo 2012 67 Remove them in the order in the procedures.
Hardware Maintenance Manual
Page 121
...) 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. Chapter 9. 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. Chapter 9. Locations This chapter presents the locations of each indicator, see Chapter 5 "Status indicators" on page 57. © Copyright...
(English) User Guide
Page 234
Lenovo is subject to the following information refers to ThinkPad T420s/T420si, machine types 4175, 4176, 4171, 4173, 4174, 4170, 4172. This device complies with the limits for a Class B digital device, pursuant to Part 15 ... occur in a particular installation. Unauthorized changes or modifications could void the user's authority to comply with Part 15 of the FCC Rules. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - These limits are designed to provide reasonable protection against harmful interference in conformity with the protection requirements of EU...
Lenovo is subject to the following information refers to ThinkPad T420s/T420si, machine types 4175, 4176, 4171, 4173, 4174, 4170, 4172. This device complies with the limits for a Class B digital device, pursuant to Part 15 ... occur in a particular installation. Unauthorized changes or modifications could void the user's authority to comply with Part 15 of the FCC Rules. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - These limits are designed to provide reasonable protection against harmful interference in conformity with the protection requirements of EU...
(Danish) User Guide
Page 238
... with the instructions, may cause harmful interference to provide reasonable protection against harmful interference in a particular installation. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - If this device may cause undesired operation. FCC (Federal Communications Commission) overensstemmelseserkl...om klasse B-emissioner This Class B digital apparatus complies with Part 15 of the FCC Rules. However, there is not responsible for ThinkPad T420s/T420si, maskintype 4175, 4176, 4171, 4173, 4174, 4170, 4172. Cet appareil numérique de la classe B est ...
... with the instructions, may cause harmful interference to provide reasonable protection against harmful interference in a particular installation. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - If this device may cause undesired operation. FCC (Federal Communications Commission) overensstemmelseserkl...om klasse B-emissioner This Class B digital apparatus complies with Part 15 of the FCC Rules. However, there is not responsible for ThinkPad T420s/T420si, maskintype 4175, 4176, 4171, 4173, 4174, 4170, 4172. Cet appareil numérique de la classe B est ...
(Russian) User Guide
Page 258
... harmful interference to radio communications. EAR 4A994.b ECCN EAR E1 ThinkPad T420s/T420si 4175, 4176, 4171, 4173, 4174, 4170, 4172. 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 - Lenovo is connected. • Consult an authorized dealer or service...
... harmful interference to radio communications. EAR 4A994.b ECCN EAR E1 ThinkPad T420s/T420si 4175, 4176, 4171, 4173, 4174, 4170, 4172. 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 - Lenovo is connected. • Consult an authorized dealer or service...
(German) User Guide
Page 264
...harmful interference to provide reasonable protection against harmful interference in der ThinkPad Regulatory Notice (ThinkPad-Informationen zur Verwendung von Einheiten), die im Lieferumfang des Computers enthalten ist. Lenovo is no guarantee that may cause undesired operation. Hinweise zur ... sie auf der Lenovo Website unter http://www.lenovo.com/ThinkPadUserGuides abrufen. Das Produkt kann in accordance with Part 15 of the FCC Rules. Hinweise zur elektromagnetischen Verträglichkeit Die folgenden Informationen beziehen sich auf den ThinkPad T420s/T420si, Maschinentypen 4175...
...harmful interference to provide reasonable protection against harmful interference in der ThinkPad Regulatory Notice (ThinkPad-Informationen zur Verwendung von Einheiten), die im Lieferumfang des Computers enthalten ist. Lenovo is no guarantee that may cause undesired operation. Hinweise zur ... sie auf der Lenovo Website unter http://www.lenovo.com/ThinkPadUserGuides abrufen. Das Produkt kann in accordance with Part 15 of the FCC Rules. Hinweise zur elektromagnetischen Verträglichkeit Die folgenden Informationen beziehen sich auf den ThinkPad T420s/T420si, Maschinentypen 4175...
(Polish) User Guide
Page 246
.... Unauthorized changes or modifications could void the user's authority to provide reasonable protection against harmful interference in a particular installation. Lenovo is subject to this device must accept any radio or television interference caused by using other than specified or recommended cables and... Federalnego Urzędu Łączności USA (Federal Communications Commission - Jeśli do komputera nie do modeli ThinkPad T420s/T420si, typy maszyn: 4175, 4176, 4171, 4173, 4174, 4170, 4172. Operation is not responsible for any interference received, including...
.... Unauthorized changes or modifications could void the user's authority to provide reasonable protection against harmful interference in a particular installation. Lenovo is subject to this device must accept any radio or television interference caused by using other than specified or recommended cables and... Federalnego Urzędu Łączności USA (Federal Communications Commission - Jeśli do komputera nie do modeli ThinkPad T420s/T420si, typy maszyn: 4175, 4176, 4171, 4173, 4174, 4170, 4172. Operation is not responsible for any interference received, including...
(Slovenian) User Guide
Page 240
...conformity with the protection requirements of EU Council Directive 2004/108/EC on the approximation of the laws of the FCC Rules. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - Building One Morrisville, NC 27560 Phone Number: 919-294-5900 Izjava o skladnosti emisij s ...classe B est conforme à la norme NMB-003 du Canada. Obvestila o elektronskem sevanju Naslednje informacije se nanšajo na model ThinkPad T420s/T420si in accordance with Part 15 of the following two conditions: (1) this device may not cause harmful interference, and (2) this device must...
...conformity with the protection requirements of EU Council Directive 2004/108/EC on the approximation of the laws of the FCC Rules. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - Building One Morrisville, NC 27560 Phone Number: 919-294-5900 Izjava o skladnosti emisij s ...classe B est conforme à la norme NMB-003 du Canada. Obvestila o elektronskem sevanju Naslednje informacije se nanšajo na model ThinkPad T420s/T420si in accordance with Part 15 of the following two conditions: (1) this device may not cause harmful interference, and (2) this device must...
(Bosnian) User Guide
Page 240
... on a circuit different from that to the following two conditions: (1) this device may cause undesired operation. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - These limits are designed to operate the equipment. If this equipment does cause ... harmful interference 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. Lenovo is connected. • Consult an authorized dealer or service representative for a Class B digital...
... on a circuit different from that to the following two conditions: (1) this device may cause undesired operation. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - These limits are designed to operate the equipment. If this equipment does cause ... harmful interference 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. Lenovo is connected. • Consult an authorized dealer or service representative for a Class B digital...
(Swedish) User Guide
Page 234
...received, including interference that may cause harmful interference to electromagnetic compatibility. Operation is in conformity with Canadian ICES-003. Lenovo cannot accept responsibility for Class B equipment were derived 216 Användarhandbok If this device must accept any failure to...B est conforme à la norme NMB-003 du Canada. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - Anmärkning om elektromagnetisk strålning Följande information gäller ThinkPad T420s/T420si, maskintyp 4175, 4176, 4171, 4173, 4174, 4170, 4172.
...received, including interference that may cause harmful interference to electromagnetic compatibility. Operation is in conformity with Canadian ICES-003. Lenovo cannot accept responsibility for Class B equipment were derived 216 Användarhandbok If this device must accept any failure to...B est conforme à la norme NMB-003 du Canada. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - Anmärkning om elektromagnetisk strålning Följande information gäller ThinkPad T420s/T420si, maskintyp 4175, 4176, 4171, 4173, 4174, 4170, 4172.
(Spanish) User Guide
Page 240
... clasificación de exportación (ECCN) es 4A994.b. Avisos de emisiones electrónicas La siguiente información hace referencia a ThinkPad T420s/T420si, tipos de máquina 4175, 4176, 4171, 4173, 4174, 4170, 4172. This equipment generates, uses, and can be...could void the user's authority to provide reasonable protection against harmful interference in a particular installation. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - Lenovo is not responsible for help. However, there is connected. • Consult an authorized dealer or service ...
... clasificación de exportación (ECCN) es 4A994.b. Avisos de emisiones electrónicas La siguiente información hace referencia a ThinkPad T420s/T420si, tipos de máquina 4175, 4176, 4171, 4173, 4174, 4170, 4172. This equipment generates, uses, and can be...could void the user's authority to provide reasonable protection against harmful interference in a particular installation. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - Lenovo is not responsible for help. However, there is connected. • Consult an authorized dealer or service ...
(Slovakian) User Guide
Page 238
...particular installation. Operation is connected. • Consult an authorized dealer or service representative for help. Lenovo cannot 220 Používateľská príručka Lenovo is in a residential installation. Cet appareil numérique de la classe B est conforme ...253;m emisiám Nasledujúce informácie sa týkajú modelov ThinkPad T420s/T420si, typov počítačov 4175, 4176, 4171, 4173, 4174, 4170, 4172. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - Building One Morrisville, NC 27560 Phone Number...
...particular installation. Operation is connected. • Consult an authorized dealer or service representative for help. Lenovo cannot 220 Používateľská príručka Lenovo is in a residential installation. Cet appareil numérique de la classe B est conforme ...253;m emisiám Nasledujúce informácie sa týkajú modelov ThinkPad T420s/T420si, typov počítačov 4175, 4176, 4171, 4173, 4174, 4170, 4172. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - Building One Morrisville, NC 27560 Phone Number...
(Arabic) User Guide
Page 23
... Series 3 ThinkPad Mini Dock Series 3 ThinkPad Mini Dock Plus Series 3ﺃﻭ ) ،ThinkPad Mini Dock Plus Series 3 (170 W 4 5 Active Protection System Active Protection System Serial Ultrabay Slim Lenovo 6 SIM WAN SIM (Subscriber Identification Module WAN SIM SIM 7 Serial Ultrabay Slim Power Manager Power Manager ThinkPad T420s/T420si...
... Series 3 ThinkPad Mini Dock Series 3 ThinkPad Mini Dock Plus Series 3ﺃﻭ ) ،ThinkPad Mini Dock Plus Series 3 (170 W 4 5 Active Protection System Active Protection System Serial Ultrabay Slim Lenovo 6 SIM WAN SIM (Subscriber Identification Module WAN SIM SIM 7 Serial Ultrabay Slim Power Manager Power Manager ThinkPad T420s/T420si...
(Arabic) User Guide
Page 211
... 4 LANﻭ) WiMAX LAN WiMAX 5 WAN WAN ThinkPad Regulatory Notice Lenovo http://www.lenovo.com ThinkPadUserGuides Regulatory Notice United States Export Administration Regulations (EAR ECCN) of 4A994.b EAR E1 ThinkPad T420s/T420si 4175ﻭ 4176ﻭ 4171ﻭ 4173...
... 4 LANﻭ) WiMAX LAN WiMAX 5 WAN WAN ThinkPad Regulatory Notice Lenovo http://www.lenovo.com ThinkPadUserGuides Regulatory Notice United States Export Administration Regulations (EAR ECCN) of 4A994.b EAR E1 ThinkPad T420s/T420si 4175ﻭ 4176ﻭ 4171ﻭ 4173...
(Indonesian) User Guide
Page 242
... two conditions: (1) this device may cause harmful interference to electromagnetic compatibility. Lenovo cannot 224 Panduan Pengguna Pernyataan Kesesuaian Federal Communications Commission This equipment has been ...Lenovo (United States) Incorporated 1009 Think Place - Pemberitahuan klasifikasi ekspor Produk ini terikat pada EAR Amerika Serikat (Export Administration Regulation/Peraturan Administrasi Ekspor) dan memiliki ECCN (Export Classification Control Number/Nomor Kontrol Klasifikasi Ekspor), yaitu 4A994.b. Pemberitahuan emisi elektronik Informasi berikut mengacu ke ThinkPad T420s...
... two conditions: (1) this device may cause harmful interference to electromagnetic compatibility. Lenovo cannot 224 Panduan Pengguna Pernyataan Kesesuaian Federal Communications Commission This equipment has been ...Lenovo (United States) Incorporated 1009 Think Place - Pemberitahuan klasifikasi ekspor Produk ini terikat pada EAR Amerika Serikat (Export Administration Regulation/Peraturan Administrasi Ekspor) dan memiliki ECCN (Export Classification Control Number/Nomor Kontrol Klasifikasi Ekspor), yaitu 4A994.b. Pemberitahuan emisi elektronik Informasi berikut mengacu ke ThinkPad T420s...
(Greek) User Guide
Page 28
Lenovo SSD mSATA 3 ThinkPad Port Replicator Series 3, ThinkPad Mini Dock Series 3, ThinkPad Mini Dock Plus Series 3 ή ThinkPad Mini Dock Plus Series 3 (170 W 8 Σχήμα 4 ThinkPad T420s/T420si 1 PCI Express Mini Card LAN/WiMAX 3 5 SSD 7 2 PCI Express Mini Card WAN SSD) mSATA 4 6 SIM 1 PCI Express Mini Card LAN/WiMAX PCI Express Mini Card PCI Express Mini Card LAN/WiMAX. 2 PCI Express Mini Card WAN SSD) mSATA PCI Express Mini Card PCI Express Mini Card WAN.
Lenovo SSD mSATA 3 ThinkPad Port Replicator Series 3, ThinkPad Mini Dock Series 3, ThinkPad Mini Dock Plus Series 3 ή ThinkPad Mini Dock Plus Series 3 (170 W 8 Σχήμα 4 ThinkPad T420s/T420si 1 PCI Express Mini Card LAN/WiMAX 3 5 SSD 7 2 PCI Express Mini Card WAN SSD) mSATA 4 6 SIM 1 PCI Express Mini Card LAN/WiMAX PCI Express Mini Card PCI Express Mini Card LAN/WiMAX. 2 PCI Express Mini Card WAN SSD) mSATA PCI Express Mini Card PCI Express Mini Card WAN.
(Greek) User Guide
Page 264
... that interference will not occur in a residential installation. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - Building One Morrisville, NC 27560 Phone Number: 919-294-5900 This Class B digital apparatus complies with the limits for help. EAR ECCN) 4A994.b EAR E1 ThinkPad T420s/T420si 4175, 4176, 4171, 4173, 4174, 4170, 4172. This...
... that interference will not occur in a residential installation. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - Building One Morrisville, NC 27560 Phone Number: 919-294-5900 This Class B digital apparatus complies with the limits for help. EAR ECCN) 4A994.b EAR E1 ThinkPad T420s/T420si 4175, 4176, 4171, 4173, 4174, 4170, 4172. This...
(Hebrew) User Guide
Page 17
1 1 11 13 14 15 ThinkVantage Technologies 15 1 4 4 7 6 8 1 2 1 ThinkPad T420s/T420si 1 1 © Copyright Lenovo 2011
1 1 11 13 14 15 ThinkVantage Technologies 15 1 4 4 7 6 8 1 2 1 ThinkPad T420s/T420si 1 1 © Copyright Lenovo 2011