Hardware Maintenance Manual
Page 3
... . . . 32 Important notice for replacing a system board 32 How to do first 35 Checkout guide 36 System supporting the Lenovo ThinkVantage Toolbox program and the PC-Doctor for CTO, CMV, and GAV products 33 Chapter 3. FRU replacement notices 63 Screw notices ...Chapter 6. Fn key combinations . . . 61 Chapter 7. Contents About this manual iii Chapter 1. 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 drive (HDD 70 1040...
... . . . 32 Important notice for replacing a system board 32 How to do first 35 Checkout guide 36 System supporting the Lenovo ThinkVantage Toolbox program and the PC-Doctor for CTO, CMV, and GAV products 33 Chapter 3. FRU replacement notices 63 Screw notices ...Chapter 6. Fn key combinations . . . 61 Chapter 7. Contents About this manual iii Chapter 1. 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 drive (HDD 70 1040...
Hardware Maintenance Manual
Page 73
... called a "Customer Replaceable Unit" or "CRU." Before servicing ThinkPad T420s and T420si models Removing the SIM card: © Copyright Lenovo 2012 67 Chapter 8. Where you . When return is sensitive to you are installing the CRU, Lenovo will be damaged by the numbers in the drawings by , ...review Chapter 7 "FRU replacement notices" on page 115. 8. CRU information and replacement instructions are available from electrical outlets, remove the battery pack, and then disconnect any FRU, turn off the computer, unplug all screws, springs, and other small parts are in the drawing...
... called a "Customer Replaceable Unit" or "CRU." Before servicing ThinkPad T420s and T420si models Removing the SIM card: © Copyright Lenovo 2012 67 Chapter 8. Where you . When return is sensitive to you are installing the CRU, Lenovo will be damaged by the numbers in the drawings by , ...review Chapter 7 "FRU replacement notices" on page 115. 8. CRU information and replacement instructions are available from electrical outlets, remove the battery pack, and then disconnect any FRU, turn off the computer, unplug all screws, springs, and other small parts are in the drawing...
Hardware Maintenance Manual
Page 74
...the cable from the flip-lock ZIF connector, do as shown in ThinkPad T420s and T420si models are servicing has the SIM card, remove it before you are connected to remove the battery pack first. (See 1010 Battery pack.) After you finish the servicing, make sure that you are ... customer has installed. When disconnecting a 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 insert the card back into the slot firmly.
...the cable from the flip-lock ZIF connector, do as shown in ThinkPad T420s and T420si models are servicing has the SIM card, remove it before you are connected to remove the battery pack first. (See 1010 Battery pack.) After you finish the servicing, make sure that you are ... customer has installed. When disconnecting a 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 insert the card back into the slot firmly.
(English) User Guide
Page 23
... 1. For details, refer to the instructions in "Using the media card reader" on page 61. 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 slot for SD card. • If your computer might have a media...
... 1. For details, refer to the instructions in "Using the media card reader" on page 61. 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 slot for SD card. • If your computer might have a media...
(English) User Guide
Page 25
...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 connector 1 Power jack The ac power adapter cable connects to the computer power jack to provide power to the computer and charge the battery..." on the computer. and use an Ethernet connector, use the Ethernet connector on 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), not the one on page 20. Chapter 1....
...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 connector 1 Power jack The ac power adapter cable connects to the computer power jack to provide power to the computer and charge the battery..." on the computer. and use an Ethernet connector, use the Ethernet connector on 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), not the one on page 20. Chapter 1....