Hardware Maintenance Manual
Page 3
... 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 ...the ECA information . . . 65 Chapter 8. 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...Status indicators . . . . . 57 Chapter 6. Fn key combinations . . . 61 Chapter 7. Contents About this manual iii Chapter 1. General checkout . . . . . 35 What to -FRU index 52 Numeric error codes 53 Error messages...
... 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 ...the ECA information . . . 65 Chapter 8. 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...Status indicators . . . . . 57 Chapter 6. Fn key combinations . . . 61 Chapter 7. Contents About this manual iii Chapter 1. General checkout . . . . . 35 What to -FRU index 52 Numeric error codes 53 Error messages...
Hardware Maintenance Manual
Page 5
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 troubleshoot problems effectively.Before servicing a ThinkPad product, be sure to troubleshoot problems. Important: This manual is intended only for the following ThinkPad® products. About this manual This manual contains service and reference information for...
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 troubleshoot problems effectively.Before servicing a ThinkPad product, be sure to troubleshoot problems. Important: This manual is intended only for the following ThinkPad® products. About this manual This manual contains service and reference information for...
Hardware Maintenance Manual
Page 74
... card, you need to flip-lock ZIF connectors. Notice on disconnecting the cable from the flip-lock ZIF connector, do as shown in ThinkPad T420s and T420si models are connected to remove the battery pack first. (See 1010 Battery pack.) After you finish the servicing, make sure that the customer...cable from flip-lock ZIF connector: Some cables used in this figure. 1 2 1010 Battery pack Important notice for replacing a battery pack: 68 Hardware Maintenance Manual Some models of the ThinkPad T420s and T420si you are servicing has the SIM card, remove it before you start the servicing.
... card, you need to flip-lock ZIF connectors. Notice on disconnecting the cable from the flip-lock ZIF connector, do as shown in ThinkPad T420s and T420si models are connected to remove the battery pack first. (See 1010 Battery pack.) After you finish the servicing, make sure that the customer...cable from flip-lock ZIF connector: Some cables used in this figure. 1 2 1010 Battery pack Important notice for replacing a battery pack: 68 Hardware Maintenance Manual Some models of the ThinkPad T420s and T420si you are servicing has the SIM card, remove it before you start the servicing.
(Brazilan Portuguese) User Guide
Page 246
... with Canadian ICES-003. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - Informações sobre emissões electrónicas As informações seguintes referem-se ao ThinkPad T420s/T420si, tipos de máquina 4175, 4176...Lenovo is no guarantee that may not cause harmful interference, and (2) this equipment. Operation is encouraged to try to correct the interference by unauthorized changes or modifications to operate the equipment. Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada. 228 Manual...
... with Canadian ICES-003. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - Informações sobre emissões electrónicas As informações seguintes referem-se ao ThinkPad T420s/T420si, tipos de máquina 4175, 4176...Lenovo is no guarantee that may not cause harmful interference, and (2) this equipment. Operation is encouraged to try to correct the interference by unauthorized changes or modifications to operate the equipment. Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada. 228 Manual...