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 ichhubella on July 28th, 2013
Is There Any Inbuilt Microphone In It?
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Current Answers
Answer #1: Posted by sabrie on July 28th, 2013 3:09 AM
sabrie
Member since:
May 23rd, 2013 Points: 3,306,778
Member since:
May 23rd, 2013 Points: 3,306,778
Hi there. Yes it does have an internal microphone. Download this pdf and see how it works.
http://www.google.com/gwt/x?hl=en&u=http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles_pdf/b490_b590_ug_en.pdf&q=Lenovo+B490+built+in+microphone&sa=X&ei=Fu30UavxA8O2hQfn3YCoDw&ved=0CCEQFjAB
http://www.google.com/gwt/x?hl=en&u=http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles_pdf/b490_b590_ug_en.pdf&q=Lenovo+B490+built+in+microphone&sa=X&ei=Fu30UavxA8O2hQfn3YCoDw&ved=0CCEQFjAB
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Related Lenovo B490 Manual Pages
Hardware Maintenance Manual - Page 3
...94 Trademarks 94
© Copyright Lenovo 2012
i Contents
About this manual iii
Chapter 1. Lenovo B490 37
Specifications 37 Status indicators 38 Fn key combinations 39
Chapter 6. Important service information 27
... Keyboard 51 1100 Keyboard bezel 54 1110 LED board 56 1120 Power board 57 1130 Microphone assembly 58 1140 I/O board 59 1150 System board assembly and USB board . . ...
Hardware Maintenance Manual - Page 5
... servicing a Lenovo product, be sure to troubleshoot problems.
The manual is intended only for trained service technicians who are familiar with Lenovo products. Machine Lenovo B490
Machine type (MT) 3756, 3772, 20205, 20207
Use this manual to read all the information under Chapter 1 "Safety information" on page 1 and Chapter 2 "Important service...
Hardware Maintenance Manual - Page 36
....
• If the computer does not charge during operation, go to Chapter 5 "Lenovo B490" on page 37.
30 Hardware Maintenance Manual If the voltage is used.
• If the... caused by spilling a liquid onto the keyboard • Use of an incorrect ac power adapter on laptop products
The following symptoms might indicate damage caused by nonwarranted activities: • Missing parts might be ...
Hardware Maintenance Manual - Page 43
...-by -768 - Chapter 5. then
click Properties. • Windows 8: From the desktop, move the cursor to
display the charms. Then click Settings ➙ PC info. Lenovo B490
This chapter presents the following product-specific service references and parts information: • "Specifications" on page 37 • "Status indicators" on page 38 • "Fn...
Hardware Maintenance Manual - Page 45
... less.
• Off: The battery is detached or the computer is powered off the computer.
• When the indicator is reading or writing data. Lenovo B490 39
Switches between the computer display and an external monitor. Enables or disables the touch pad. Status indicators (continued)
Indicator
Meaning
3 Device access status indicator...
Hardware Maintenance Manual - Page 64
...Screw (quantity) M2 × 3 mm, flat-head, nylon-coated (1)
Color Black
Torque 1.85 kgf-cm
1130 Microphone assembly
For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "...51 • "1100 Keyboard bezel" on page 54
Removal steps of microphone assembly
Detach the connector 1 , and then remove the microphone assembly in the direction shown by the arrow 2 .
2 1
...
Hardware Maintenance Manual - Page 66
..." on page 50 • "1080 Backup battery" on page 51 • "1090 Keyboard" on page 51 • "1100 Keyboard bezel" on page 54 • "1130 Microphone assembly" on a bench top that has a hard surface, such as an ESD mat or a corrugated
conductive surface. For access, remove these FRUs in the process...
Hardware Maintenance Manual - Page 68
..." on page 50 • "1080 Backup battery" on page 51 • "1090 Keyboard" on page 51 • "1100 Keyboard bezel" on page 54 • "1130 Microphone assembly" on page 58 • "1150 System board assembly and USB board" on page 60
62 Hardware Maintenance Manual
Hardware Maintenance Manual - Page 72
...socket a , and then rotate the head of rough handling. • "1100 Keyboard bezel" on page 54 • "1130 Microphone assembly" on page 58 • "1150 System board assembly and USB board" on page 60 • "1160 Thermal module" ...; "1090 Keyboard" on page 51 • "1100 Keyboard bezel" on page 54 • "1130 Microphone assembly" on page 62 Attention: The CPU is extremely sensitive.
Hardware Maintenance Manual - Page 74
..." on page 50 • "1080 Backup battery" on page 51 • "1090 Keyboard" on page 51 • "1100 Keyboard bezel" on page 54 • "1130 Microphone assembly" on page 58 • "1140 I/O board" on page 59 • "1150 System board assembly and USB board" on page 60 • "1180 LCD unit...
Hardware Maintenance Manual - Page 75
..." on page 50 • "1080 Backup battery" on page 51 • "1090 Keyboard" on page 51 • "1100 Keyboard bezel" on page 54 • "1130 Microphone assembly" on page 58 • "1140 I/O board" on page 59 • "1150 System board assembly and USB board" on page 60 • "1180 LCD unit...
Hardware Maintenance Manual - Page 83
Lenovo B490 front view
1 Integrated camera (on page 38.
© Copyright Lenovo 2012
77 Front view
2 1 2
4 9 8
3 4
7 6
5
Figure 1. Chapter 8. Locations
This chapter presents the locations of...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.
Hardware Maintenance Manual - Page 84
Lenovo B490 right-side view 1 Combo audio jack 2 USB connector 3 Optical drive
Bottom and left -side view
1 Battery latch 2 Battery pack 3 Battery ..., and wireless cards are located underneath the bottom slot cover.
78 Hardware Maintenance Manual Right-side view
Figure 2. Lenovo B490 bottom and left -side view
45 3 12
4 USB connector 5 ac power connector
1 2 3
10
4 5
8 76 9
Figure 3.
Hardware Maintenance Manual - Page 89
... N
102500229 N
102500228 N
102500018 N
102500017 N
102500016 N
102500015 N
102001065 N
102500230 N
102500101 N
102500133 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 84).
Hardware Maintenance Manual - Page 94
... Power Board Cable 50.4TD02.001 LB48 LCD Cable 50.4TF01.001 LA48 LCD Mylar 40.4TD03.001 LB48 Fingerprint Bracket 33.4TF04.001 LA48 Microphone Rubber 23.42383.001
FRU no .
36200102 36200101 36200103 36200147 36200149 36200150
CRU ID * * * * * *
88 Hardware Maintenance Manual...
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