Lenovo B575 Support Question
Lenovo B575 Support Question
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Question posted by jhatimsm on April 30th, 2014
How To Turn On Wireless Capability On A Lenovo Laptop B575
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Related Lenovo B575 Manual Pages
Lenovo B575 Setup Poster V1.0 - Page 2
... more energy-saving than CCFL backlight technology. External devices connection
Ethernet
1
B575
2
3
Notes: • The above connection illustration is installed.
3 Integrated wireless device switch (Select models only)
Use this switch to your computer. Attention: Differring in this button to enter the Lenovo OneKey Rescue system and recover the system to the actual product...
Lenovo B575 Limited Warranty and Product Specific Notices V1.0 - Page 10
...different from Lenovo authorized dealers. This device complies with the instructions, may not cause harmful interference, and (2) this device must be determined by turning the equipment... installation. Product specific notices
Electronic emissions notices
The following information refers to Lenovo B575, machine type 20119, 1450.
„ Federal Communications Commission (FCC) Statement...
Hardware Maintenance Manual - Page 3
... 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 ...disk drive 37 1050 Optical drive 38 1060 DIMM 39 1070 PCI Express Mini Card for wireless LAN/WAN 40 1080 Keyboard 42 1090 Keyboard bezel 45 1100 System board 49 1110 LCD...
Hardware Maintenance Manual - Page 24
..., the customer may be responsible for repair costs if the computer damage was detected 6. Lenovo B575 Hardware Maintenance Manual
What to do first
When you do return an FRU, you attach ... by spilling a liquid onto the keyboard • Use of an incorrect AC adapter on laptop products
The following symptoms might indicate that you must include the following information in which the machine...
Hardware Maintenance Manual - Page 25
... problem continues, go to "Lenovo B575" on page 27.
Unplug the AC adapter cable from the AC adapter does not always indicate a defect. If the voltage is supplied when you turn on , check the power .... • If the computer does not charge during operation, go to "Checking
operational charging". Turn off the computer. 6. To check the AC adapter, follow the steps below : 1. Note:...
Hardware Maintenance Manual - Page 26
...This protects the battery pack from being overcharged or from the computer and leave it return to room temperature.
Turn off , replace the battery pack. See the following figure:
Terminal Voltage (V DC)
3 4 5 6(-)...able to 30 KΩ. If the voltage is still off the computer. 2. Lenovo B575 Hardware Maintenance Manual
Perform operational charging.
Note: Recharging will be 4 to be ...
Hardware Maintenance Manual - Page 28
Lenovo B575 Hardware Maintenance Manual
When you use the recovery discs to 2 hours. Note: The recovery process might take up.... Passwords
As many as two passwords may be booted. The system board must be made available to the servicer, there is turned on by an unauthorized person. Supervisor password
A supervisor password (SVP) protects the system information stored in order to get access ...
Hardware Maintenance Manual - Page 30
... power button. The hibernation file in the boot record on the hard disk drive is read, and system status is turned on, the computer returns from the hard disk drive.
26 Lenovo B575 Hardware Maintenance Manual
Hibernation mode
In hibernation mode, the following occurs: • The system status, RAM, VRAM, and setup data...
Hardware Maintenance Manual - Page 32
...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)
Keyboard
• Numberic ... 7 Starter/Home Basic/Premium/Professional
operating system • Free DOS
28 Lenovo B575 Hardware Maintenance Manual
Table 1.
Hardware Maintenance Manual - Page 33
... White: The separate numeric keypad on , do not put the computer into standby mode or
turn off the computer. Note: Do not move the system while the white drive-in uppercase without... Caps Lock mode, press the CapsLk key. When this indicator is
on the keyboard is enabled.
Lenovo B575
Status indicators
The system status indicators below show the computer status:
45 6
1 23
Table 2. You...
Hardware Maintenance Manual - Page 34
... between 20% and 80% of its capacity. White: The wireless LAN radio is turned on and data is turned on and connected to AP. Lenovo B575 Hardware Maintenance Manual
d Power on and not connected to AP. off , or the wireless LAN radio is turned on e Battery
status
f Wireless
status
White: System is in hibernate mode or shut down.
Hardware Maintenance Manual - Page 35
... combinations
Key combination
Description
Fn + Esc:
Turn on /off).
Fn + Insert:
Enable/...Turn on/off the integrated camera. Fn + Home:
Activate the pause function.
Fn + F6:
Enable/Disable the touchpad.
Fn + F11:
Skip to the previous track. Fn + F4:
Open the interface for integrated wireless devices settings (on /off the backlight of Fn with a function key.
Lenovo B575...
Hardware Maintenance Manual - Page 36
... the plastic part:
more than 90°
(Cross-section)
• Logic card to plastic Turn an additional 180° after the screw head touches the surface of the logic card:
more ...; They do not easily come loose, even with special nylon-coated screws that have one . Lenovo B575 Hardware Maintenance Manual
FRU replacement notices
This section presents notices related to the "Torque" column for ...
Hardware Maintenance Manual - Page 37
...failing FRU.
To put the new FRU in square callouts. 5. DANGER Before removing any FRU, turn on the computer until you have to be damaged by removing any FRU, review "FRU replacement ...to service any computer unless you have made sure that have been trained and
certified. Lenovo B575
Removing and replacing an FRU
This section presents exploded figures with one hand or using an...
Hardware Maintenance Manual - Page 44
... (quantity)
Color
M2 × 3 mm, flat-head, nylok-coated (1) Black
Torque 1.5 kgfcm
40 Lenovo B575 Hardware Maintenance Manual
1070 PCI Express Mini Card for wireless LAN/WAN
2
1
Disconnect the two wireless LAN cables (black, white) a, and then remove the screw b.
wireless LAN card in some models may have 3 cables in step a. In step a, unplug the...
Hardware Maintenance Manual - Page 45
... in the direction shown by arrow c .
3
When installing: • In models with a wireless LAN card that has two antenna connectors, plug
the black cable (1st) (MAIN) into the jack... 1, and the white cable (2nd) (AUX) into jack labeled 2 on the card. • In models with a wireless LAN card that has three antenna connectors, plug the black cable (1st) (MAIN) into the jack labeled 1, the grey ...
Hardware Maintenance Manual - Page 53
... a bench top that has a hard
surface, such as an ESD mat or conductive corrugated material. Lenovo B575
1100 System board
Important notices for handling the system board: When handling the system board, bear the ...drive" on page 38 • "1060 DIMM" on page 39 • "1070 PCI Express Mini Card for wireless LAN/WAN" on page 40 • "1080 Keyboard" on page 42 • "1090 Keyboard bezel" on ...
Hardware Maintenance Manual - Page 55
Lenovo B575
Figure 10. Removal steps of system board (continued)
Remove the system board in the direction shown by arrow d.
4
b
a
a
When installing: ... Improper placement of the audio jack and the microphone jack are attached to the base cover, adjust the placement of the wireless radio switch as shown in , and make sure that both of the switch or those jacks might cause a damage.
51
Hardware Maintenance Manual - Page 56
...drive" on page 38 • "1060 DIMM" on page 39 • "1070 PCI Express Mini Card for wireless LAN/WAN" on page 40 • "1080 Keyboard" on page 42 • "1090 Keyboard bezel" on ... As you attach the LCD assembly. Tension could cause the cables to be damaged by
arrows a. Lenovo B575 Hardware Maintenance Manual
1110 LCD unit
For access, remove these FRUs in the direction shown by the cable...
Hardware Maintenance Manual - Page 58
..." on page 38 • "1060 DIMM" on page 39 • "1070 PCI Express Mini Card for wireless LAN/WAN" on page 40 • "1080 Keyboard" on page 42 • "1090 Keyboard bezel" on... page 45 • "1100 System board" on page 49 Figure 12. Lenovo B575 Hardware Maintenance Manual
1120 Fan assembly and Heat Sink assembly
For access, remove these FRUs in the direction shown...
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