Lenovo B575 Support Question
Lenovo B575 Support Question
Find answers below for this question about Lenovo B575.Need a Lenovo B575 manual? We have 4 online manuals for this item!
Question posted by hung1ha on August 30th, 2014
Lenovo B575 Screen Wont Turn On
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Related Lenovo B575 Manual Pages
Lenovo B575 Setup Poster V1.0 - Page 1
... of your computer.
Lenovo, Lenovo logo and OneKey are not listed. 2 If any item is not supplied with Windows preinstalled computers.
P/N:148500091 Printed in China
Lenovo B575
Setup Poster V1.0
Read...be used to restore the system to secure your computer.
* For more details on -screen instructions If the computer fails to boot up due to a system malfunction, the recovery...
Lenovo B575 Limited Warranty and Product Specific Notices V1.0 - Page 10
... two conditions: (1) this device must be determined by turning the equipment off and on a circuit different from Lenovo authorized dealers. Telephone: (919) 294-5900
10 These... radio communications. Product specific notices
Electronic emissions notices
The following information refers to Lenovo B575, machine type 20119, 1450.
„ Federal Communications Commission (FCC) Statement
...
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
... of factory default 23 Using recovery 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...
Hardware Maintenance Manual - Page 4
... information, guidelines, and safety
information required for trained servicers who are familiar with Lenovo products. Use this manual to read all the information under "Safety information" on page 1 and "Important service information" on page 16.
Important: This manual is divided into the following Lenovo product:
Lenovo B575 Use this manual to troubleshoot problems effectively.
Hardware Maintenance Manual - Page 6
... are fastened or rolled up with the nonconductive clip, about 8 centimeters (3 inches) from all safety shields, guards, labels, and ground wires. Replace any heavy object:
1. Lenovo B575 Hardware Maintenance Manual
General safety
Follow these rules below to ensure general safety: • Observe a good housekeeping in the area where the machines are put...
Hardware Maintenance Manual - Page 8
... safety grounds.
• Do not touch live electrical circuits with the reflective surface of the units.)
• If an electrical accident occurs: - Power supply units - Lenovo B575 Hardware Maintenance Manual
• Always look carefully for possible hazards in a machine: - Pumps - Send the victim to get medical aid.
4 Examples of these hazards are...
Hardware Maintenance Manual - Page 10
Lenovo B575 Hardware Maintenance Manual
Handling devices that are all at the same charge.
The mat is especially useful when handling ESD-sensitive devices. • Select a grounding ...
Hardware Maintenance Manual - Page 18
... for Class 1 laser products. Werden Steuer- Such devices are also sold separately as a CD-ROM drive or a DVD-ROM drive. 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.
El uso de controles o ajustes o la ejecuci...
Hardware Maintenance Manual - Page 20
...ensure that all software fixes, drivers, and BIOS downloads are posted on the screen and install the necessary software.
16 To download software fixes, drivers, and ...and download. 4. 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...
Hardware Maintenance Manual - Page 24
...noisy, it : 1. The following is covered under the warranty by the customer. Date on laptop products
The following symptoms might indicate damage caused by nonwarranted activities: • Missing parts might ...latches, pins, or connectors that have been subjected
to excessive force, or dropped.
20 Lenovo B575 Hardware Maintenance Manual
What to do first
When you do return an FRU, you must ...
Hardware Maintenance Manual - Page 25
...Turn off the computer. 2. To check the AC adapter, follow the steps below : 1. Remove the battery pack. 3. Disconnect the AC adapter and install the charged battery pack. 7. See the
following : • Replace the system board. • If the problem continues, go to "Lenovo B575... a defect. If the voltage is supplied when you turn on page 27. Make sure that the battery pack supplies...
Hardware Maintenance Manual - Page 26
... the Power Meter icon in the icon tray of the Windows® taskbar and wait for a while.
Turn off , replace the battery pack. See the following figure:
Terminal Voltage (V DC)
3 4 5 6(-)...3. If the charge indicator or icon is correct, replace the system board.
22 Lenovo B575 Hardware Maintenance Manual
Perform operational charging. This protects the battery pack from being overcharged or...
Hardware Maintenance Manual - Page 28
...must be entered before an operating system can be made available to the servicer, there is turned on by an unauthorized person. Note: The recovery process might take up to complete the ... it appears on the screen whenever the computer is no service procedure to reset the password.
The computer does not start until the password is booted. Lenovo B575 Hardware Maintenance Manual
When ...
Hardware Maintenance Manual - Page 30
Also, the computer goes into hibernation mode, perform that action: - Lenovo B575 Hardware Maintenance Manual
Hibernation mode
In hibernation mode, the following conditions: •... time. • If the timer conditions are stored on the hard disk. • The system is turned on the hard disk drive is read, and system status is restored from hibernation mode and resumes operation. ...
Hardware Maintenance Manual - Page 33
...drive. When this indicator is on , do not put the computer into standby mode or
turn off the computer.
Sudden physical shock could cause drive errors.
29 To enable or disable ... the keyboard is enabled. To enable or disable the numeric keypad,
press the Num Lock key. Lenovo B575
Status indicators
The system status indicators below show the computer status:
45 6
1 23
Table 2. Status...
Hardware Maintenance Manual - Page 34
... on battery power with the remaining power between 20% and 80% of it is also turned off and the radio of its capacity. White: The remaining power of the battery is more...switched off , or the wireless LAN radio is turned on and connected to AP. Flashing white:
The wireless LAN radio is turned on and data is enabled. Lenovo B575 Hardware Maintenance Manual
d Power on e Battery
status...
Hardware Maintenance Manual - Page 35
... /off the backlight of Fn with a function key.
Fn + F2:
Turn on/off ).
Fn + / :
Increase/Decrease display brightness. Fn + F9:
Start/Pause playback of Windows Media Player.
Lenovo B575
Fn key combinations
The following table shows the function of each combination of the LCD screen. Fn + F3:
Open the interface for display resolution settings.
Hardware Maintenance Manual - Page 36
...this section carefully before replacing any FRU. Do the following country specifications.
32 Lenovo B575 Hardware Maintenance Manual
FRU replacement notices
This section presents notices related to the ... all screws are tightened firmly.
• Ensure torque screwdrivers are harder to plastic Turn an additional 180° after the screw head touches the surface of the logic card...
Hardware Maintenance Manual - Page 37
... been trained and
certified. Do not attempt to , and can cause electrical short circuits. Lenovo B575
Removing and replacing an FRU
This section presents exploded figures with one hand or using an ...Follow the correct sequence in square callouts. 5. Attention: After replacing an FRU, do not turn off the computer, unplug all screws, springs, and other small parts are in which they...
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