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 gilldoug24 on November 21st, 2015
Dvd Player
My DVD player is not working on my laptop T420. Need help fixing it.
Current Answers
Answer #1: Posted by TommyKervz on November 21st, 2015 2:47 PM
TommyKervz
Member since:
January 10th, 2013 Points: 17,776,813
Member since:
January 10th, 2013 Points: 17,776,813
See the troubleshooting guide here: https://support.lenovo.com/za/en/documents/migr-4yrpz7
Related Lenovo ThinkPad T420 Manual Pages
ThinkPad Gobi Mobile Broadband Wireless WAN (L420, L421, L520, T420s, T420si, T430s, T430si) - Page 2
ThinkPad® Mobile Broadband (T420s, T420si, T430s, and T430si)
1
2
3
4
5
AUX(Blue)
7
6
MAIN(Red)
8
http://www.lenovo.com/support/wireless
© Lenovo 2012. ThinkPad is a registered trademark of Lenovo.
0 A3 3 6 2 6
ThinkPad Gobi Mobile Broadband Wireless WAN (T420, T420i, T430, T430i, T520, T520i, T530, T530i, W520, W530) - Page 1
ThinkPad® Mobile Broadband (T420, T420i, T430, and T430i)
1
2
3
4
5
6
MAIN(Red)
AUX(Blue)
7
8
http://www.lenovo.com/support/wireless
(English) BIOS Setup using Windows Management Instrumentation Deployment Guide - Page 10
... Common interface for different products
Supported computers
BIOS setup through WMI is supported on the following ThinkPad products only: • R400, R500, T400, T500, W500, X200, X200s, X200 ...8226; W700, W700ds, W701 • T400s • X201, X201s, T410, T410s, T510, W510 • T420, T420i, T420s, T420si, T520, T520i, W520, X220, X220i, X220 Tablet, X220i Tablet • X1 • T430,...
Hardware Maintenance Manual - Page 1
ThinkPad T420 and T420i Hardware Maintenance Manual
Hardware Maintenance Manual - Page 3
... 23 Strategy for replacing a hard disk drive . . . 23 Important notice for CTO, CMV, and GAV products 25
Chapter 3. 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...
Hardware Maintenance Manual - Page 4
Locations 129
Front view 129 Rear view 131 Bottom view 132
Chapter 10. Notices 175
Electronic emissions notices 176 Trademarks 177
ii ThinkPad T420 and T420i Hardware Maintenance Manual Parts list 133
Overall 134 LCD FRUs 155 Keyboard 160 Miscellaneous parts 162 Information about ac power adapters 164 Power ...
Hardware Maintenance Manual - Page 5
ThinkPad T420 and T420i Machine Type 4177, 4178, 4179, 4180, 4236, 4237, and 4238
Use this manual along with ThinkPad products. About this manual along with the advanced diagnostic tests to troubleshoot problems.
Important: This manual is intended only for the following ThinkPad® products.
Before servicing a ThinkPad product, be sure to troubleshoot problems effectively. Use...
Hardware Maintenance Manual - Page 6
iv ThinkPad T420 and T420i Hardware Maintenance Manual
Hardware Maintenance Manual - Page 8
...working with powered-on when they are removed from grounds such as metal floor strips and machine frames. By observing the above This practice ensures correct grounding of the units.
• If an electrical accident occurs:
2 ThinkPad T420...of mat to listed above rule, you need to work alone under hazardous conditions or near you when working with the power on electrical equipment; ...
Hardware Maintenance Manual - Page 34
..., latches, pins, or connectors that have been subjected to excessive force,
or dropped.
28 ThinkPad T420 and T420i Hardware Maintenance Manual
Date on the display, and beep symptoms 6. Failing FRU name...and serial number 9. Name and phone number of an incorrect ac power adapter on laptop products
The following symptoms might indicate damage caused by nonwarranted activities: • Missing...
Hardware Maintenance Manual - Page 48
... DVD drive. 3. After you have completed the Windows setup, you might experience periods when no action is required by an unauthorized person. Passwords
As many as three passwords may be needed ... and Drivers Recovery Disc when prompted and then click OK to the system user.
42 ThinkPad T420 and T420i Hardware Maintenance Manual
When the recovery process is complete, the Set Up Windows...
Hardware Maintenance Manual - Page 64
... Screen Magnifier function.
58 ThinkPad T420 and T420i Hardware Maintenance Manual If an external monitor is attached, computer output is displayed in the Control Panel or use the Power Manager. This function does not work while a DVD movie or a video clip is to change the brightness level temporarily. Each user needs to normal operation, press...
Hardware Maintenance Manual - Page 172
...-Windows XP Professional recovery DVDs Language
French German Italian Japanese Simplified Chinese ...DVDs
Note: The Windows Vista recovery DVDs are available only for models with Windows XP Professional preinstalled from the factory, but has either a Windows 7 or Windows Vista COA affixed to the system, that model is eligible only for India) US English
P/N
04T3729 04T3730
CRU ID
*
166 ThinkPad T420...
Hardware Maintenance Manual - Page 174
Parts list-Windows 7 Professional (64 bit) recovery DVDs Language
Arabic with English Brazilian Portuguese Czech with English C&L Nordics (Danish, Finnish... 04T3746 04T3766 04T3767 04T3768 04T3747 04T3748 04T3749 04T3750 04T3751 04T3753 04T3754 04T3755 04T3756 04T3757 04T3758 04T3759
CRU ID
*
168 ThinkPad T420 and T420i Hardware Maintenance Manual QYx, R2x, R3x, R4x, R8x, R9x, RAx, RBx, RCx, RDx, ...
Hardware Maintenance Manual - Page 176
... with English
04T3785 04T3786 04T3789 04T3808 04T3809 04T3810 04T3790 04T3791
CRU ID
*
170 ThinkPad T420 and T420i Hardware Maintenance Manual Parts list-Windows 7 Home Basic (64 bit) recovery DVDs Language
Simplified Chinese
P/N 04T3784
CRU ID
*
Windows 7 Home Premium (32 bit) DVDs
Windows 7 Home Premium (32 bit) is preinstalled as the operating system in the...
Hardware Maintenance Manual - Page 178
Parts list-Windows 7 Ultimate (64 bit) recovery DVDs Language
US English
P/N 04T3769
CRU ID
*
172 ThinkPad T420 and T420i Hardware Maintenance Manual • 4238-CTO Table 27.
(English) User Guide - Page 252
...ThinkPad notebooks come with the latest support information such as the following services are available via Web download (connection charges may apply) or via disc.
Lenovo Support Web site
Technical support information is available on the World Wide Web. This section contains information about where to go to fix... on page 234. If you need help files. Microsoft Service Packs are ...
(Traditional Chinese) User Guide - Page 226
... Pack 是 Windows Web http://www.microsoft.com。Lenovo Microsoft Windows Service Pack 210
Readme
ThinkPad
Lenovo
Lenovo
http://www.lenovo.com/support
Downloads & Drivers Flash BIOS Warranty Technical Support Need Help ThinkVantage ThinkVantage Lenovo Forums（Lenovo User Guides & Manuals
聯絡 Lenovo
Lenovo Lenovo
Lenovo 或...
(Japanese) User Guide - Page 262
... S/N)
Lenovo Lenovo Lenovo および Lenovo ThinkPad
ThinkPad ThinkPad README Lenovo
Windows Microsoft http://www.microsoft.com 245
README
ThinkPad
Lenovo
Lenovo Web サイト
http://www.lenovo.com/support
Downloads & Drivers BIOS
Warranty Technical Support Need
Help ThinkVantage: ThinkVantage
Lenovo Forums (Lenovo...
(Hebrew) User Guide - Page 210
... .http://www.microsoft.com Service Packs Microsoft Windows Lenovo 194
README
ThinkPad
Lenovo
Lenovo
http://www.lenovo.com/support
Downloads & Drivers flash BIOS
• ) Warranty Technical Support Need Help
• :ThinkVantage ThinkVantage Lenovo Forums Lenovo
• ) User...
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