Lenovo ThinkPad T420 Support Question
Lenovo ThinkPad T420 Support Question
Find answers below for this question about Lenovo ThinkPad T420.Need a Lenovo ThinkPad T420 manual? We have 38 online manuals for this item!
Question posted by Kenthiva on December 27th, 2013
How To Remove A T420 Keyboard Sticky Key
The person who posted this question about this Lenovo product did not include a detailed explanation. Please use the "Request More Information" button to the right if more details would help you to answer this question.
Current Answers
Related Lenovo ThinkPad T420 Manual Pages
Hardware Maintenance Manual - Page 3
... 6. Removing and replacing a FRU 65
Before servicing ThinkPad T420 and T420i . . . 66 1010 Battery pack 67 1020 ExpressCard blank bezel 68 1030 Serial Ultrabay Enhanced device or travel bezel 69 1040 Hard disk drive (HDD) and solid state drive (SSD 70 1050 DIMM slot cover 73 1060 DIMM (in the slot under the keyboard...
Hardware Maintenance Manual - Page 34
...a nonsupported device • Forgotten computer password (making the computer unusable) • Sticky keys caused by the customer. Before checking problems with multiple labels • Damaged or... by spilling a liquid onto the keyboard • Use of an incorrect ac power adapter on laptop products
The following are not covered under...ThinkPad T420 and T420i Hardware Maintenance Manual
Hardware Maintenance Manual - Page 36
... be sensed.
30 ThinkPad T420 and T420i Hardware Maintenance Manual Press ENTER to select ATAPI CDx (x: 0, 1, ...) and then press Enter. 7. Press cursor keys to select. If ... Disks • Diskette Drives • Other Devices • Communication • Wireless LAN
• Keyboard • Video • Internal Speaker • Mouse • Diskette • System Load •...
Hardware Maintenance Manual - Page 47
...(one to two hours to start the recovery process.
The ThinkPad Setup program opens. Related service information
This chapter presents following ...new drive. Chapter 4. Press and hold down the F1 key, and then turn on the computer. c. This disc ...replaced because of DVDs to restore the computer to keep onto removable media or a network drive before you can use an external...
Hardware Maintenance Manual - Page 50
...New Password
field blank, and press Enter twice. 8. Both user HDP and master HDP will have been removed.
44 ThinkPad T420 and T420i Hardware Maintenance Manual When the POP icon is the letter of the hard disk drive. Select Hard... Press F10. 9. Select Yes in the Enter Current Password field. 2. When the ThinkPad logo comes up window opens. 6. Select Security, using the cursor directional...
Hardware Maintenance Manual - Page 52
...cause the computer to the docking station, do any operation with the keyboard, the TrackPoint, the hard disk drive, the parallel connector, or ...on , the computer returns from the hard disk drive.
46 ThinkPad T420 and T420i Hardware Maintenance Manual • The system is restored ...system. Pressing Fn+F4 keys. If you do any of the following: • Press the Fn+F12 keys. • If you...
Hardware Maintenance Manual - Page 80
...installing: Insert the notched end of the computer. If you install a DIMM in only one under the keyboard. 1060 DIMM (in the slot on the underside of the computer)
For access, remove these FRUs in order: • "1010 Battery pack" on page 67 • "1050 DIMM ... Make sure that it is firmly fixed in the slot and does not move easily.
74 ThinkPad T420 and T420i Hardware Maintenance Manual
Hardware Maintenance Manual - Page 98
... DIMM slot cover" on page 73 • "1080 Keyboard" on page 77 • "1120 Keyboard bezel assembly, FPC cable, and Bluethooth daughter card" on page 87 Removal steps of SmartCard
1 1
Step 1
Screw (quantity) M2 × 3 mm, wafer-head, nylon-coated (2)
3
Color Black
Torque
0.181 Nm (1.85 kgfcm)
2
92 ThinkPad T420 and T420i Hardware Maintenance Manual
Hardware Maintenance Manual - Page 100
... • "1120 Keyboard bezel assembly, FPC cable, and Bluethooth daughter card" on page 87
Removal steps of modem daughter card (MDC)
1 1
2
Step 1
Screw (quantity) M2 × 3 mm, wafer-head, nylon-coated (2)
Color Black
When installing: Make sure that the connector is attached firmly.
Torque
0.181 Nm (1.85 kgfcm)
94 ThinkPad T420 and T420i Hardware...
Hardware Maintenance Manual - Page 112
...WAN" on page 75 • "1080 Keyboard" on page 77 • "1110 PCI Express Mini Card for wireless LAN" on page 85 • "1120 Keyboard bezel assembly, FPC cable, and Bluethooth ...101
Removal steps of base cover assembly and DC-in connector cable
1
1
1 1
1
Step 1
Screw (quantity) M2 × 8 mm, wafer-head, nylon-coated (5)
Color Black
Torque
0.181 Nm (1.85 kgfcm)
106 ThinkPad T420 and ...
Hardware Maintenance Manual - Page 116
...on page 75 • "1080 Keyboard" on page 77 • "1110 PCI Express Mini Card for wireless LAN" on page 85 • "1120 Keyboard bezel assembly, FPC cable, and ...DC-in connector cable" on page 106
Removal steps of magnesium structure frame
1
2 2
3 3
5
Step 2
Screw (quantity) M2 × 5 mm, wafer-head, nylon-coated (2)
110 ThinkPad T420 and T420i Hardware Maintenance Manual
4 4
Color...
(English) User Guide - Page 34
... see the system properties of your computer, click Start, right-click Computer (in microphones (on some models) Keyboard • 89-key, 90-key, or 94-key • UltraNav (TrackPoint and multi-touch touch pad) • Fn key function • ThinkVantage button • Volume control buttons
16 User Guide External digital monitor: Up to 2536-by...
(English) User Guide - Page 45
...them with your computer hard disk or solid state drive.
Using your computer and start the ThinkPad Setup. You also can help when necessary. • "Installing a new operating system" on... ThinkVantage button. The Rescue and Recovery screen opens.
Numeric keypad
The keyboard has keys that serve as a 10-key numeric keypad.
Chapter 2.
Note: Depending on the date when your computer...
(English) User Guide - Page 137
.... DANGER Electric current from the computer. To avoid shock hazard, disconnect the cables before you start the following : 1. Removing the keyboard To remove the keyboard, do not connect the cable to the computer. Turn off the computer;
Remove the battery. Loosen the screw on page 111. 4. Prerequisites for
a few minutes, till the inside of the...
(English) User Guide - Page 144
... edges of the socket at an angle of about 20 degrees; then press it in only one .
Note: If you are installing. 4. Remove the keyboard. For information how to remove the keyboard, refer to reveal the memory slot. With the notched end of the SO-DIMM toward the contact edge side of the SO...
(English) User Guide - Page 145
...ThinkPad models have it repaired. Notes: • You can also replace the mSATA solid state drive with a new one which can cause damage and permanent loss of the computer cools, before you need to have an mSATA solid state drive. Incorrect handling can be moved easily. 10. Remove the battery.
Reinstall the keyboard... the F1 key. For more
information about how to remove the battery,...
(English) User Guide - Page 149
For more information about how to remove the keyboard, refer to disconnect the cables from the card. 4. If a tool for removing connectors is included, disconnect the cables by picking up (2).
If no such tool is included in the package with your fingers and gently unplugging them.
6. ...
(English) User Guide - Page 152
... on page 111. 4. Turn the computer over . 3. Turn off the computer; Remove the keyboard. If you start the following procedures. 2. For more information about how to reinstall ... sure to attach the gray cable to "Replacing the keyboard" on page 111. 13. For more information about how to remove the keyboard, refer to "Replacing the keyboard" on the card, and the black cable to "...
(English) User Guide - Page 186
... locked, and you cannot remove your computer. Attach a mechanical lock to the ThinkPad Port Replicator Series 3 as follows:
Using the system lock key
The system lock key has two positions, unlocked and locked. When the key is in the locked position, the eject button of the ThinkPad Mini Dock Series 3, the ThinkPad Mini Dock Plus Series 3, or...
(English) User Guide - Page 195
..., press Esc repeatedly until you want is shown as of the time of the ThinkPad Setup menu is highlighted, press Enter. A submenu is displayed, press the F1 key. Move the cursor to the option you want to the computer, remove any diskette from the submenu. 7. Notes:
Chapter 8. If the diskette drive is connected...
Similar Questions
Lenovo Thinkpad T420 User Guide
i am using lenovo thinkpad T420 laptop computer but at the moment the computer is not working when i...
i am using lenovo thinkpad T420 laptop computer but at the moment the computer is not working when i...
(Posted by fitsakassa 10 years ago)
