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Lenovo B575 Support Question

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Question posted by sodejo on July 28th, 2014

Lenovo B575 1450a5u Will Not Start

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Answer #1: Posted by freginold on May 31st, 2020 5:59 AM
freginold

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December 20th, 2011

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Generally, when a laptop battery won't charge, it's because of one of the following reasons:
  • The battery won't hold a charge
  • The charger won't charge the battery

Either one could be the culprit -- both are common issues with laptops -- so it's up to you which one you want to try replacing. Generally, replacement chargers are cheaper than replacement batteries, so unless you have a reason to think it's the battery, replacing the charger is a good place to start.

Related Lenovo B575 Manual Pages

Lenovo B575 Setup Poster V1.0 - Page 1

... adapter Power cord* Optical disk(s) (Select models only) Manuals - Please login to secure your computer. * For more details on -screen instructions P/N:148500091 Printed in China Lenovo B575 Setup Poster V1.0 Read the safety notices and important tips in the APP folder under the D driver. User Guide - Installation discs for services such as...
Lenovo B575 Limited Warranty and Product Specific Notices V1.0 - Page 10

...radio communications. Product specific notices Electronic emissions notices The following information refers to Lenovo B575, machine type 20119, 1450. „ Federal Communications Commission (FCC) ... against harmful interference in accordance with the instructions, may cause undesired operation. Lenovo is connected. • Consult an authorized dealer or service representative for a...
Lenovo B575 User Guide V1.0 - Page 1

Lenovo B575 User Guide V1.0 Read the safety notices and important tips in the included manuals before using your computer.
Hardware Maintenance Manual - Page 3

... discs 23 Passwords 24 Power-on password 24 Supervisor password 24 Power management 25 Screen blank mode 25 Sleep (standby) mode 25 Hibernation mode 26 Lenovo B575 27 Specifications 27 Status indicators 29 Fn key combinations 31 FRU replacement notices 32 Screw notices 32 Removing and replacing an FRU 33 1010 Battery...
Hardware Maintenance Manual - Page 4

... for servicing computers. • The product-specific section includes service, reference, and product-specific parts information. Important: This manual is divided into the following Lenovo product: Lenovo B575 Use this manual to troubleshoot problems effectively. iv Use this manual to read all the information under "Safety information" on page 1 and "Important service information...
Hardware Maintenance Manual - Page 6

...soldering, cutting wire, attaching springs, using solvents, or working in your leg muscles; Lenovo B575 Hardware Maintenance Manual General safety Follow these rules below to ensure general safety: •...be hazardous to the customer, or that makes the machine unsafe. • Before you start the machine, make sure that other service representatives and the customer are not in a hazardous...
Hardware Maintenance Manual - Page 8

.... • Do not service the following parts with the reflective surface of a plastic dental mirror. Send the victim to get medical aid. 4 Blowers and fans - Lenovo B575 Hardware Maintenance Manual • Always look carefully for possible hazards in a machine: - The surface is conductive; Caution: do not become a victim yourself. - Examples of the...
Hardware Maintenance Manual - Page 10

... ESD damage is a difference in protective packages until they exceed the requirements noted here. 2. ESD damage can use an ESD common ground or reference point. Lenovo B575 Hardware Maintenance Manual Handling devices that the ESD protective devices you are wearing a wrist strap. • Use the black side of a grounded work mat to...
Hardware Maintenance Manual - Page 18

... exposure to the requirements of the Department of Health and Human Services 21 Code of Federal Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. Lenovo B575 Hardware Maintenance Manual Laser compliance statement Some models of Lenovo computer are equipped from the factory with an optical storage device such as options.
Hardware Maintenance Manual - Page 20

..., and BIOS downloads are installed before completing the service action. After a system board is loaded to http://consumersupport.lenovo.com/. 2. Enter a serial number or select a product or use Lenovo smart downloading. 3. Lenovo B575 Hardware Maintenance Manual Important service information This chapter presents the following important service information: • "Strategy for replacing...
Hardware Maintenance Manual - Page 22

... June 2006 are RoHS compliant, the replacement part must be RoHS compliant. Lenovo B575 Hardware Maintenance Manual Important information about replacing RoHS compliant FRUs RoHS, The Restriction...compliant FRUs have RoHS compliant parts. RoHS requirements must also be implemented on Lenovo products placed on the market before June 2006 Products marketed after the RoHS ...
Hardware Maintenance Manual - Page 24

...• If the spindle of servicer 2. Machine type, model number, and serial number 8. Lenovo B575 Hardware Maintenance Manual What to do first When you do return an FRU, you must include...or the installation of an incompatible card • Improper disk insertion or use . Date on laptop products The following are not covered under warranty: • LCD panel cracked from the application ...
Hardware Maintenance Manual - Page 25

... battery charges properly during operation, go to "Checking operational charging". See the following : • Replace the system board. • If the problem continues, go to "Lenovo B575" on , check the power cord of the AC adapter for the AC adapter pin No. 2 may differ from the one of the AC adapter cable.
Hardware Maintenance Manual - Page 26

...5 6(-) 7(-) 2(+) 1(+) 1 +0 to the next section. Checking the battery pack Battery charging does not start until the Power Meter shows that less than +11.0 V DC, measure the resistance between battery terminals 1...indicator or icon does not light on , replace the system board. Lenovo B575 Hardware Maintenance Manual Perform operational charging. Reinstall the battery pack. To ...
Hardware Maintenance Manual - Page 27

... burning the backup image to save application files and the initial backed up , just enter Lenovo OneKey Rescue System and run Restore to a previous backup status. Make sure to back up...: • "Restoring the factory contents by using OneKey Recovery Restore of factory default The Lenovo B575 computers come with pre-installed OneKey Rescue System. For details of OneKey Rescue System, see the...
Hardware Maintenance Manual - Page 28

If any Lenovo computer: the poweron password (POP) and the supervisor password (SVP). The password must be entered ...is installed, the password prompt does not appear when the operating system is entered. The computer does not start until the password is booted. Lenovo B575 Hardware Maintenance Manual When you use the recovery discs to boot your computer, the system will enter the...
Hardware Maintenance Manual - Page 30

To cause the computer to go into hibernation mode, perform that action: - Lenovo B575 Hardware Maintenance Manual Hibernation mode In hibernation mode, the following actions as the event that causes the system to enter hibernation mode, follow the steps ...
Hardware Maintenance Manual - Page 31

...USB 2.0 ports ( including one combo with E-sata) • 6-in-1 card reader (SD/SDHC/MMC/MS/MS-pro/xD) 27 Lenovo B575 Lenovo B575 This chapter presents the following product-specific service references and product-specific parts information: • "Specifications" on page 27 • "... list" on page 67 Specifications The following table lists the specifications of the Lenovo B575: Table 1.
Hardware Maintenance Manual - Page 32

...Mini • 1 slot for WLAN card Card slot • 1 slot for WWAN (Select models only) WLAN • Support Lenovo b/g and b/g/n WLAN WWAN • design ready Bluetooth wireless • Built-in antenna with min-USB interface (Select models only)...8226; Win 7 Starter/Home Basic/Premium/Professional operating system • Free DOS 28 Lenovo B575 Hardware Maintenance Manual Table 1.
Hardware Maintenance Manual - Page 35

...+ F11: Skip to the next track. Fn + F12: Skip to the previous track. Lenovo B575 Fn key combinations The following table shows the function of each combination of Windows Media Player.... sound volume. 31 Fn + F2: Turn on /off the integrated camera. Fn + F9: Start/Pause playback of the LCD screen. Fn + / : Increase/Decrease display brightness. Table 4. Fn key combinations ...

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