Lenovo B575 Support Question
Lenovo B575 Support Question
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Question posted by kmaaciga on March 2nd, 2014
Lenovo B575 Battery Won't Charge Anymore
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Current Answers
Answer #1: Posted by freginold on May 31st, 2020 6:32 AM
freginold
Member since:
December 20th, 2011 Points: 23,253,885
Member since:
December 20th, 2011 Points: 23,253,885
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, and unless you have a spare battery or charger it's often hard to troubleshoot without replacing one or the other. Replacement chargers are typically 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.
There are other things that could be causing the problem -- such as a bad motherboard, power jack or power board -- but most of the time the problem lies with either the battery or the charger.
Related Lenovo B575 Manual Pages
Lenovo B575 Setup Poster V1.0 - Page 1
...148500091 Printed in China
Lenovo B575
Setup Poster V1.0
Read the safety notices and important tips in the United States and/or other countries. Unpack
Computer
Battery pack
AC adapter
..., warranty registration, technical support and technical call center phone lists. Initial setup instructions
1 Install the battery pack
1 3
2
1
2 Connect to the power
2 1 3
Attention: Connect the power ...
Hardware Maintenance Manual - Page 3
... charging 21 Checking the battery pack 22
Related service information 23 Restoring the factory contents by using OneKey Recovery 23
Restore 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...
Hardware Maintenance Manual - Page 10
... transistors or integrated circuits (ICs) should be verified by equalizing the charge so that meets the specific service requirement.
Notes: The use an ESD common ...to eliminate static on a double-insulated or battery-operated system, use of a grounding system to guard against ESD damage by a certified electrician.
6
Lenovo B575 Hardware Maintenance Manual
Handling devices that the ESD...
Hardware Maintenance Manual - Page 24
... number of service 3. Date on laptop products
The following is covered under the warranty by spilling a liquid onto the keyboard • Use of a hard disk drive becomes noisy, it : 1. Date of
an incompatible card • Improper disk insertion or use . Failing FRU name and part number 7. Lenovo B575 Hardware Maintenance Manual
What to...
Hardware Maintenance Manual - Page 25
... board. • If the problem continues, go to "Lenovo B575" on page 27. See the
following figure:
Pin
Voltage (V DC)
1
+20
2
0
2 1
Note: Output voltage for correct continuity and installation. • If the computer does not charge during operation, use a discharged battery pack or a battery pack that the battery pack supplies power when you turn on the...
Hardware Maintenance Manual - Page 26
... terminals
1 (+) and 7 (-). Turn off , replace the battery pack.
under this condition the battery pack can charge to +14
7
Ground (-)
3. Then reinstall the battery pack. Remove the battery pack and measure the voltage between battery terminals 5 and 7. Lenovo B575 Hardware Maintenance Manual
Perform operational charging. If the battery status indicator or icon does not light on...
Hardware Maintenance Manual - Page 32
Lenovo B575 Hardware Maintenance Manual
Table 1. Specifications (continued)
Feature
Description
MODEM slot
• N/A... with Metal-Dome
Fingerprint reader
• Select models only
Integrated camera
• 0.3Million pixels
Battery
• 48WH, 6 cell cylindrical Li-ion Battery
AC adapter
• 65W
Pre-installed
• Win 7 Starter/Home Basic/Premium/Professional
operating...
Hardware Maintenance Manual - Page 34
... not connected to AP. Amber: The computer is being charged with the remaining power between 20% and 80% of its capacity. Lenovo B575 Hardware Maintenance Manual
d Power on and connected to AP. Blinking amber: (500ms off .
30 Blinking white:
The battery is operating on battery power with the remaining power between 20% and 80% of...
Hardware Maintenance Manual - Page 37
...32. 3.
Attention: The system board is sensitive 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 ... given by removing any FRUs that all power cords from electrical outlets, remove the battery pack, and then disconnect any computer unless you have made sure that have been ...
Hardware Maintenance Manual - Page 38
... lever is in the parts list for your computer. Removal steps of the slot. Lenovo B575 Hardware Maintenance Manual
1010 Battery pack
DANGER Only use the battery specified in the locked position.
34 Holding the battery release lever in the unlocked position b, remove the battery pack in the direction shown by arrow c.
$ &
%
When installing: Install the...
Hardware Maintenance Manual - Page 39
Lenovo B575
1020 Dummy card
For access, remove this FRU: • "1010 Battery pack" on page 34 Figure 2. Removal steps of dummy cards
Remove the dummy card in the direction shown by arrows a b .
1 2
35
Hardware Maintenance Manual - Page 40
Lenovo B575 Hardware Maintenance Manual
1030 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot compartment cover
For access, remove this FRU: • "1010 Battery pack" on page 34 Figure 3. Removal steps of HDD/Memory/Mini PCI Express Card slot compartment cover
Loosen five screws a , then remove the compartment cover b .
1 1
1 2 1 1
36
Hardware Maintenance Manual - Page 41
... of hard disk drive
Remove the screw a and pull the tab up in order: • "1010 Battery pack" on page 34 • "1030 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot
compartment ... kgfcm
3
When installing: Make sure that the HDD connector is attached firmly.
37
Lenovo B575
1040 Hard disk drive
For access, remove these FRUs in the direction shown by arrow b to physical shock.
Hardware Maintenance Manual - Page 42
... screw a, insert a screwdriver into the screw hole and push the optical drive in the direction shown by arrow b. Lenovo B575 Hardware Maintenance Manual
1050 Optical drive
For access, remove this FRU: • "1010 Battery pack" on page 34 • "1030 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot
compartment cover" on...
Hardware Maintenance Manual - Page 43
...fixed in the slot and difficult to be installed in SLOT-0 ( : lower slot), but not in order: • "1010 Battery pack" on page 34 • "1030 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot
compartment cover" on the computer ... Push the DIMM firmly, and pivot it until it is used on page 36
Figure 6. Lenovo B575
1060 DIMM
For access, remove these FRUs in SLOT-1 ( : upper slot).
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 ... pick up the connectors with your fingers and gently unplug them in order: • "1010 Battery pack" on page 34 • "1030 Hard disk drive(HDD)/Memory/Mini PCI Express Card ...
Hardware Maintenance Manual - Page 46
Removal steps of keyboard
Remove three screws a.
1
1 1
Step
a
Screw (quantity)
Color
M2.5 × 8 mm, flat-head, nylok-coated (3) Black
Torque 2.5 kgfcm
42 Lenovo B575 Hardware Maintenance Manual
1080 Keyboard
For access, remove this FRU: • "1010 Battery pack" on page 34 • "1030 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot
compartment cover" on page 36
Figure 8.
Hardware Maintenance Manual - Page 49
Lenovo B575
1090 Keyboard bezel
For access, remove these FRUs in order: • "1010 Battery pack" on page 34 • "1030 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot
compartment cover" on page 36 • "1050 Optical drive" ...
Hardware Maintenance Manual - Page 53
Lenovo B575
1100 System board
Important notices for wireless LAN/WAN" on page 40 • "1080 Keyboard" on page 42 • "1090 Keyboard bezel" ... put a system board down, make sure to put it only on page 45
49 For access, remove these FRUs in order: • "1010 Battery pack" on page 34 • "1020 Dummy card" on page 35 • "1030 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot
...
Hardware Maintenance Manual - Page 56
...of LCD unit Release the antenna cables from the cable guides in order: • "1010 Battery pack" on page 34 • "1020 Dummy card" on page 35 • "...coated (4) White
Torque 2.5 kgfcm
When installing:
• Route the antenna cables along the cable guides.
52 Lenovo B575 Hardware Maintenance Manual
1110 LCD unit
For access, remove these FRUs in the direction shown by the cable guides...
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