Hardware Maintenance Manual
Lenovo B575e
Note: Before using this information and the product it supports, be sure to read the general information under Appendix A 'Notices' on page 93.
Fourth Edition (December 2012)
© Copyright Lenovo 2012.
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services Administration 'GSA' contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-35F-05925.
Contents
| About this manual. . . . . . . . . . . iii | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chapter 1. Safety information. . . . . . 1 | ||||||||||||||||
| General safety . | . | . | . | . | . | . | . | . | . | . | . | . . | . | . | 1 | |
| Electrical safety | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 |
| Safety inspection | guide | . | . | . | . | . | . | . | . | . | . | . | . | 3 | ||
| Handling devices that are sensitive to electrostatic | ||||||||||||||||
| discharge. . . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 3 |
| Grounding requirements | . | . | . | . | . | . | . | . | . | . | . | . | 4 | |||
| Safety notices (multilingual translations) . . . . . . 4 | ||||||||||||||||
| Laser compliance translations) . . | . | statement . | . | . | . | . | . | (multilingual . | . | . | . | . | . | . | 19 | |
| Chapter 2. Important service | ||||||||||||||||
| information . . . . . . . . . . . . . . 27 | ||||||||||||||||
| Important notice for replacing a system | ||||||||||||||||
| board . . . . . . . . . . . . . . . . 28 | ||||||||||||||||
| Important information about replacing RoHS | ||||||||||||||||
| compliant FRUs . . . . . . . . . . . . . . 28 | ||||||||||||||||
| Chapter 3. General checkout . . . . . 29 | ||||||||||||||||
| Checking operational charging . . . . . . Checking the battery pack . . . . . . . . 31 Chapter 4. Related service | ||||||||||||||||
| . | . | . | ||||||||||||||
| Recovering the | . | . | . | . | 31 | |||||||||||
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| information . . . . . . . . . 33 computer settings . . . 33 Passwords . . . . . . . . . . . . . . 33 Power-on password. . . . . . . . . . . 34 Supervisor password . . . . . . . . . . 34 | ||||||||||||||||
| Power management . . . . . . . . . . . . 34 | ||||||||||||||||
| Screen blank mode . . . . . . . . . . . 34 | ||||||||||||||||
| Sleep mode . . . . . . . . . . . . . . 34 | ||||||||||||||||
| Hibernation mode . . . . . . . . . . . 35 | ||||||||||||||||
| . . | Chapter5.Lenovo Specifications . | . | . | . | B575e | . | . | . . | . . | . . | . . | . . | . . | . . | 37 37 |
Table Caption: This table appears to be a table of contents or index for a technical manual, listing chapter titles, sub-sections, and their corresponding page numbers.
Screw notices .
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41
Table Caption: This table is a table of contents or index, listing chapters and sub-sections with corresponding page numbers, predominantly focusing on the removal and replacement of Field Replaceable Units (FRUs) for a device. It also includes sections on locations and parts lists.
About this manual
This manual provides service and reference information for the following Lenovo ® products.
| Machine | Machine type (MT) |
|---|---|
| Lenovo B575e | 3685, 20189 |
Table Caption: This table lists a Lenovo B575e machine and its corresponding machine types, which are 3685 and 20189.
Use this manual to troubleshoot problems.
The manual is divided into the following sections:
- The common sections provide general information, guidelines, and safety information required for servicing computers.
- The product-specific sections include service, reference, and product-specific parts information.
Important:
- This manual is intended only for trained service technicians who are familiar with Lenovo products. Use this manual to troubleshoot problems
