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Hardware Maintenance Manual - ThinkPad L420, L421, L520
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Hardware Maintenance Manual
l420_l421_l520_hmm_en_0a60342_07.pdf
13.42 MB
October 201327 Jan 2014
This file contains the Hardware Maintenance Manual (HMM), October 2013 Edition.

This HMM contains information regarding hardware installation and removal; diagnostics and troubleshooting; hardware interfaces; and service (FRU) part numbers.

Supported ThinkPad systems:
- L420, L421, L520

Released on October 2013

Note:
- The Recovery DVD (RDVD) information found in Hardware Maintenance Manual (HMM) is not updated as regularly as the RDVD service part document.
- For the latest RDVD part numbers, please refer to your systems' RDVD service part document instead.
Additional information

Having trouble downloading a PDF file?

For links to updated service parts information, visit the service parts list index.

Get Acrobat Reader To view PDF files you must have the latest version of Adobe Acrobat installed on your system.


If you are unable to find what you are looking for, please do try the following options:
1. Lenovo Assisted Search
2. Product usage and general troubleshooting tips
3. Lenovo Support Forum
4. Technical Support Call Centre

Country Availability
AvailableWorldwide
Document ID : UM006634
Legacy Document ID : MIGR-75480
Last Updated : 28 Jan 2014
Copyright © Lenovo 2013, all rights reserved
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