Lenovo B575E Important service information, Strategy for replacing FRUs, Before replacing parts

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Chapter 2. Important service information

This chapter presents the following important service information that applies to all machine types supported by this manual:

•“Strategy for replacing FRUs” on page 27

–“Strategy for replacing a hard disk drive” on page 28

–“Important notice for replacing a system board” on page 28

•“Important information about replacing RoHS compliant FRUs” on page 28

Important: BIOS and device driver fixes are customer-installable. The BIOS and device drivers are available at http://www.lenovo.com/support.

Strategy for replacing FRUs

Before replacing parts:

Make sure that all software fixes, drivers, and BIOS downloads are installed before replacing any FRUs listed in this manual.

After a system board is replaced, ensure that the latest BIOS is installed to the system board before completing the service action.

To download software fixes, drivers, and BIOS, do the following:

1.Go to http://www.lenovo.com/support.

2.Click Download Drivers & Software. The Web site offers three options to begin your search:

•Search by product number

•Search through the product auto-detect function

•Search by product category

3.Follow the directions on the screen and install the necessary software.

Notes: If you need to improve the computer performance, you also could download and install the latest BIOS utility from the Support Web site.

•Do not try to update the BIOS settings for any computer unless you have been trained and certified. An untrained person runs the risk of damaging the computer.

•Before installing the latest utility, make sure that the battery is fully charged and an ac power adapter is connected.

•Do not turn off or put your computer into sleep or hibernation until the update has been completed. Otherwise, the system board might be damaged.

Use the following strategy to prevent unnecessary expense for replacing and servicing FRUs:

•If you are instructed to replace a FRU but the replacement does not correct the problem, reinstall the original FRU before you continue.

•Some computers have both a processor board and a system board. If you are instructed to replace either the processor board or the system board, and replacing one of them does not correct the problem, reinstall that board, and then replace the other one.

© Copyright Lenovo 2012

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Contents Lenovo B575e Hardware Maintenance ManualFirst Edition July Copyright Lenovo Contents Ii Hardware Maintenance Manual About this manual Iv Hardware Maintenance Manual General safety Safety informationElectrical safety Safety inspection guide Grounding requirements Safety notices multilingual translationsSafety information Hardware Maintenance Manual Safety information Perigo Perigo Vorsicht Vorsicht Vorsicht Safety information Hardware Maintenance Manual Safety information Hardware Maintenance Manual Safety information Hardware Maintenance Manual Laser compliance statement multilingual translations Hardware Maintenance Manual Safety information Hardware Maintenance Manual Safety information Hardware Maintenance Manual Safety information Hardware Maintenance Manual Important service information Before replacing partsStrategy for replacing FRUs Important notice for replacing a system board Strategy for replacing a hard disk driveImportant information about replacing RoHS compliant FRUs For products shipped after JuneFollowing are not covered under warranty General checkoutWhat to do first Checking the ac power adapter Power system checkoutChecking operational charging Checking the battery packHardware Maintenance Manual Recovering the computer settings Related service informationPasswords Power-on passwordScreen blank mode Power managementSleep mode Hibernation modeRelated service information Hardware Maintenance Manual Specifications Indicator Meaning Status indicatorsKey combination Description Fn key combinationsHardware Maintenance Manual Screw notices FRU replacement noticesPlastic to plastic Logic card to plasticHardware Maintenance Manual Removing and replacing a FRU Battery packRemoval steps of bottom slot cover Bottom slot coverHard disk drive Removal steps of hard disk drive assemblyOptical drive Removal steps of hard disk drive bracketRemoval steps of the optical drive Memory modules Removal steps of memory modules PCI Express Mini Card for wireless LANRemoval steps of PCI Express Mini Card for wireless LAN Backup battery Keyboard Removal steps of keyboard Keyboard will open up slightly Keyboard bezel Remove screws That secure the keyboard bezel Removal steps of keyboard bezelM2 × 5 mm, flat-head, nylon-coated Black Kgfcm Removing and replacing a FRU LED board and power board Removal steps of power boardRemoval steps of LED board Microphone assembly Removal steps of microphone assembly1120 I/O board and RJ45 Ethernet board Removal steps of I/O board Remove the I/O board Removal steps of RJ45 Ethernet board Important notices for handling the system board System board assemblyRemoval steps of system board LCD unit Removal steps of LCD unit When installingThermal fan assembly Removal steps of thermal fan assembly Speaker assembly DC-in sub card and base cover Removal steps of speaker assemblyRemoval steps of DC-in sub card Applying labels to the base cover LCD front bezelRemoval steps of LCD front bezel Integrated camera LCD panel, LCD cable, and hingesRemoval steps of integrated camera Removal steps of LCD panel and hinges Antenna assembly Removal steps of antenna assemblyRemoval steps of LCD cable Removing and replacing a FRU Hardware Maintenance Manual Front view LocationsLenovo B575e bottom view Bottom viewParts list FRU Overall FRU no OverallLA57 HDD Door Assy LCD FRUs FRU Parts list Keyboard Sunrex Parts list Keyboard Chicony Ac power adapters Power cordsMiscellaneous parts Country or region FRU no Parts list 3-pin power cords Volex Country or region FRU no Hardware Maintenance Manual Appendix A. Notices Trademarks Electronic emissions noticesPage Part Number 1P P/N

B575E specifications

The Lenovo B575E is a reliable and cost-effective laptop designed primarily for business users and students who need a dependable device for everyday tasks. It brings a solid mix of performance, portability, and essential features that cater to the needs of individuals on a budget.

At its core, the B575E is powered by AMD's E-series processors, which provide adequate performance for handling basic computing tasks like web browsing, document editing, and multimedia consumption. This entry-level configuration is perfect for users who do not require intensive graphics capabilities or high-end processing power.

One of the standout features of the Lenovo B575E is its 15.6-inch display. The screen boasts a resolution of 1366 x 768 pixels, which while standard, offers decent clarity and brightness for everyday usage. The anti-glare technology reduces reflections and allows users to work comfortably in various lighting conditions.

In terms of memory, the B575E typically comes with 4 GB of RAM, which is expandable for users who require additional multitasking capabilities. With a standard hard drive capacity, users can choose models with up to 500 GB of storage, providing sufficient space for documents, applications, and media files.

The design of the B575E is pragmatic and functional, featuring a sturdy casing that can withstand regular use. Weighing around 5.5 pounds, it is portable enough for users who need to carry their laptops to meetings or classes.

Connectivity options are user-friendly, as the laptop includes USB 2.0 and USB 3.0 ports, HDMI output, and an SD card reader, enabling users to connect various peripherals and external displays easily. The built-in webcam and microphone support video conferencing, a feature that has become increasingly important in today’s remote work and education environments.

The battery life of the Lenovo B575E is commendable, providing several hours of productivity on a single charge, which is essential for users who are frequently on the move.

Overall, the Lenovo B575E stands out as a practical choice for budget-conscious consumers looking for a functional laptop that meets the basic demands of everyday computing without sacrificing performance. With its reliable construction, satisfactory specifications, and essential features, it remains a competitive option in the entry-level laptop market.
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