Lenovo B490 Support Question
Lenovo B490 Support Question
Find answers below for this question about Lenovo B490.Need a Lenovo B490 manual? We have 1 online manual for this item!
Question posted by bineeshurumbil on May 13th, 2014
How Solve The Battery Problem?
I bought lenovo b490 2 weeks back. Now I am unable use the lap with battery.. In the icon it is showing 55% avilabe.Pluged in not charging. what is the solution for it .
Current Answers
Answer #1: Posted by stephanie0001 on May 13th, 2014 3:20 AM
stephanie0001
Member since:
March 25th, 2014 Points: 173,170
Member since:
March 25th, 2014 Points: 173,170
Related Lenovo B490 Manual Pages
Hardware Maintenance Manual - Page 3
... sensitive to do first 29 Power system checkout 30
Checking the ac power adapter 30 Checking operational charging 31 Checking the battery pack 31
Chapter 4. Important service information 27
Strategy for replacing FRUs 27 Strategy for replacing a ... replacing RoHS compliant FRUs 28
Chapter 3. Lenovo B490 37
Specifications 37 Status indicators 38 Fn key combinations 39
Chapter 6.
Hardware Maintenance Manual - Page 5
... information" on page 1 and Chapter 2 "Important service information" on page 27.
© Copyright Lenovo 2012
iii Machine Lenovo B490
Machine type (MT) 3756, 3772, 20205, 20207
Use this manual to troubleshoot problems effectively.
• Before servicing a Lenovo product, be sure to troubleshoot problems.
The manual is intended only for trained service technicians who are familiar with...
Hardware Maintenance Manual - Page 9
...Lenovo features or options not covered by equalizing the charge so that are present, you must not be the type specified in charge... 3. Check exterior covers for cracked or bulging batteries. 5. Use caution; Use product-specific ESD procedures when they present: ... correcting the problem. do not become a victim yourself. - Check for 0.1 ohm or less between objects. Use a meter to...
Hardware Maintenance Manual - Page 10
... and retains a charge even when
you use an ESD common ground or
reference point. When working on ac-operated computers. Proper grounding of the computer is desirable but not necessary. - Grounding requirements
Electrical grounding of the electrical outlet can use of the ac plug on a double-insulated or battery-operated system, use have been certified...
Hardware Maintenance Manual - Page 33
... 28 - After a system board is replaced, ensure that the battery is fully charged and an ac power adapter is installed to replace a FRU but the replacement does not correct the problem, reinstall
the original FRU before replacing any computer unless you have both...either
the processor board or the system board, and replacing one .
© Copyright Lenovo 2012
27
Use the following : 1.
Hardware Maintenance Manual - Page 35
...parts exchange form or parts return form that you attach to stress beyond normal use. Before checking problems with the computer, determine whether the damage is a list of some common... Card or the installation of the correct model. Date of an optical drive
© Copyright Lenovo 2012
29
Important notes:
• Only certified trained personnel should not be responsible for a ...
Hardware Maintenance Manual - Page 36
...charging" on laptop products
The following : 1.
If the voltage is supplied when you turn on page 37.
30 Hardware Maintenance Manual
If the voltage is used.
• If the power-on indicator does not turn on page 31
Checking the ac power adapter
You are servicing. 3. Remove the battery...board.
• If the problem persists, go to Chapter 5 "Lenovo B490" on the computer. &#...
Hardware Maintenance Manual - Page 37
... has been discharged.
Terminal 1 7
Voltage (V dc) + 0 to launch the Lenovo Solution Center program, and then click Battery. - If the voltage is still not charged, go to launch the Lenovo Experience program, and then click Battery Health. To check your battery, depending on the operating system you are using, do the following :
• Windows 7: Open the Power Manager program...
Hardware Maintenance Manual - Page 43
...-right or bottom-right corner of your computer, click Start, right-click Computer; Lenovo B490
This chapter presents the following product-specific service references and parts information: •...; "Status indicators" on page 38 • "Fn key combinations" on some models for the Lenovo B490 models. Memory • Double data rate 3 (DDR3) synchronous dynamic random access memory (SDRAM)
...
Hardware Maintenance Manual - Page 45
... switch between the computer display and an external monitor. Lenovo B490 39 Status indicators (continued)
Indicator
Meaning
3 Device access status indicator
On: The hard disk drive or optical drive is continuing. Sudden physical shock might continue until the battery is 100% charged.
• Slow blinking orange: The battery charge level is between 20% and 80%, and...
Hardware Maintenance Manual - Page 47
... In the Lenovo notebook computer, this problem is recommended to use new screws. • It recommended to find a list of CRUs for your product in your Lenovo Limited Warranty ... be charged for customers: You can request that have one. Read this Hardware Maintenance Manual. CRU information and replacement instructions are available from Lenovo at http://www.lenovo.com/UserManuals...
Hardware Maintenance Manual - Page 49
... the computer. and (2) you can resolve some problems with your product. General guidelines
This chapter presents directions...using an electrostatic discharge (ESD) strap (P/N 6405959).
© Copyright Lenovo 2012
43 Be sure to
replacement. 8. DANGER
Before removing any FRU, review Chapter 6 "FRU replacement notices" on how to , and can be charged for the replacement CRU if Lenovo...
Hardware Maintenance Manual - Page 51
... remove the cover 2 .
1 1
2 2
Step 1
Screw (quantity) M2 × 3 mm, flat-head, nylon-coated (2)
1030 Optical drive
For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot cover" on page 44
Removal steps of optical drive Remove the screw 1 .
1
Color Black
Torque 1.85 kgf...
Hardware Maintenance Manual - Page 52
...
Remove the screws 1 and then remove the optical drive bracket. Insert a screwdriver into the screw hole 2 and push the optical drive in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot cover" on page 44
46 Hardware Maintenance Manual
1 2
Color Black
Torque 1.85 kgf-cm Step 1
Screw (quantity...
Hardware Maintenance Manual - Page 53
...not move easily.
1050 Hard disk drive assembly
For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot cover" on page 44
Attention: • Do ... memory module in the direction shown by the arrow 2 .
1
1
2
Note: If only one memory module is used on the computer you are servicing, the card must be installed in SLOT-0 ( a : lower slot), but not in...
Hardware Maintenance Manual - Page 71
... at an amount of grease can cause a thermal problem due to imperfect contact with an integrated thermal module
a
1170 CPU
For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom ..."1070 mSATA solid state drive" on page 50 • "1080 Backup battery" on page 51 • "1090 Keyboard" on the part marked a and b as shown in the following illustration.
Hardware Maintenance Manual - Page 83
... indicators, see "Status indicators" on some models) 2 Wireless module antennas 3 Status indicators 1 4 Speakers 5 Media card reader slot
6 Touch pad and touch pad buttons 7 Power and battery indicator1 8 Power button 9 Recovery button
1 For the description of the Lenovo B490 hardware components. Chapter 8. Lenovo B490 front view
1 Integrated camera (on page 38.
© Copyright...
Hardware Maintenance Manual - Page 84
...
Bottom and left -side view
1 Battery latch 2 Battery pack 3 Battery lock 4 Security keyhole 5 Fan louvers
6 Monitor connector 7 Ethernet connector 8 HDMI port 9 USB connectors 10 Bottom slot cover1
1 The memory modules, hard disk drive, and wireless cards are located underneath the bottom slot cover.
78 Hardware Maintenance Manual Lenovo B490 bottom and left -side view
45...
Hardware Maintenance Manual - Page 85
... to the warranty service for customers:
You can resolve some problems with your product with the replacement CRU; Some CRUs are ...ac power adapter, power cord, battery, and hard disk drive. See your Lenovo Limited Warranty documentation for your product and ...the CRU, Lenovo will be included with a replacement part you might be charged for the replacement CRU if Lenovo does not receive...
Hardware Maintenance Manual - Page 89
... N
102500350 N
102500301 N
102500303 N
102500362 N
102500440 N
102500433 N
102500421 N
102500435 N
90000220 N
90000979 N
LCD FRUs
In Lenovo B490 models, the type of LCD is 14-inch high definition (HD) TFT LCD (Table 4 "Parts list LCD" on page 88.)... 2cPGA Processor 21 LB48 Power Board 55.4TF05.001G
LB49B Fingerprint Board 22 Keyboard (see "ac power adapters" on page 84).
Chapter ...
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