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Audio Jack Is Suddenly Stopped Working
Today my head phones suddenly stopped working, only the sound I can hear is from the Laptop Speakers...
(Posted by kadugaya 9 years ago)
Flash Bios Updated But Now The Laptop Is Not Booting?
I have updated flash bios downloaded form Lenovo official site. In the processes the laptop restarte...
(Posted by baljit0377 9 years ago)

Lenovo B40-70 Videos

Lenovo B40-70 Notebook Review
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Popular Lenovo B40-70 Manual Pages

Safety and General Information Guide - Notebook - Page 10

... a problem with ...replace the outlet with one of the branch circuit rating. There are installing.... To avoid possible damage to attached devices, wait at least five seconds after the computer is a safety feature. Hazardous voltage, current, and energy levels are using is on a power supply or any external device cables other than USB and 1394 cables...no serviceable parts inside...
Hardware Maintenance Manual - Lenovo B40-xx Notebook - Page 20

... 17 • "Important information about replacing RoHS compliant FRUs" on page 18 Important: BIOS and device driver fixes are installed before completing the service action. Follow the directions on the customer support site:  http://consumersupport.lenovo.com/. Lenovo B40-30/B40-45/ B40-70 Hardware Maintenance Manual Important service information This chapter presents the following...
Hardware Maintenance Manual - Lenovo B40-xx Notebook - Page 23

...copying, saving, or formatting. Consider replacing an FRU only when a problem recurs. Lenovo B40-30/B40-45/B40-70 General checkout This chapter presents the following important notes: Important notes: • Only certified trained personnel can occur for a variety of reasons that have been altered. Single failures can service the computer. • Before replacing any FRU, read the entire...
Hardware Maintenance Manual - Lenovo B40-xx Notebook - Page 24

... was subjected to stress beyond normal use. Lenovo B40-30/B40-45/ B40-70 Hardware Maintenance Manual What to do first When you do return an FRU, you must include the following information in the parts exchange form or parts return form that you attach to it may be a symptom of unauthorized service or modification. • If the spindle...
Hardware Maintenance Manual - Lenovo B40-xx Notebook - Page 28

... replaced for a scheduled fee. Exception: If only an SVP is installed, the password prompt does not appear when the operating system is booted. Lenovo B40-30/B40-45/ B40-70 Hardware Maintenance Manual Passwords As many as three passwords may be made available to the servicer, there is no master HDP is available, neither Lenovo nor Lenovo authorized service technicians provide any services...
Hardware Maintenance Manual - Lenovo B40-xx Notebook - Page 34

...volume level. : Turns the LCD screen backlight on/off. : Closes the currently active window. : Projects to a connected display. : Refreshes the desktop or the currently active window. : Decreases display brightness. : Enables/disables the touchpad. : Increases display brightness. 30 Lenovo B40-30/B40-45/ B40-70 Hardware Maintenance Manual Fn key combinations Hotkeys The following...
Hardware Maintenance Manual - Lenovo B40-xx Notebook - Page 36

... in the figure. 7. An untrained person runs the risk of the interconnecting cables. Metallic parts or metal flakes can be removed before the failing FRU. Attention: The system...by touching a ground point with the instructions to indicate how to remove and replace the FRU. Lenovo B40-30/B40-45/ B40-70 Hardware Maintenance Manual Removing and replacing an FRU This section presents exploded ...
Hardware Maintenance Manual - Lenovo B40-xx Notebook - Page 56

Lenovo B40-30/B40-45/ B40-70 Hardware Maintenance Manual 1140 LCD unit and base cover For access, remove these FRUs: • "1010 Battery pack" on page 33 • "1020 Optical ...1110 System board" on page 48 Figure 14. Removal steps of LCD unit and base cover Release the two antenna cables from the cable guides by arrows. Remove six screws a b. 1 1 1 1 Step Screw (quantity) a b M2.5 x 4 ...
Lenovo Limited Warranty - Lenovo B40-xx, B50-xx, B50-30 Touch Notebook - Page 7

... RIGHTS AND REMEDIES AT LAW, INCLUDING THOSE UNDER THE AUSTRALIAN CONSUMER LAW. Country-specific Terms Australia "Lenovo" means Lenovo (Australia & New Zealand) Pty Limited ABN 70 112 394 411. Email: lensyd_au@lenovo.com The following replaces the same section in Part 3 ‐ Warranty Service Information. Address: Level 10, North Tower, 1‐5 Railway Street, Chatswood, NSW, 2067...
Lenovo Regulatory Notice for wireless adapter (EU) - Lenovo B40-xx, B50-xx, B50-30 Touch, E40-xx Notebook - Page 1

...For model: BCM94352Z 1 AA00 This manual contains regulatory information for the following Lenovo products: • Lenovo B40‐30/N40‐30 • Lenovo B4070/N40‐70Lenovo B40‐45/N40‐45 • Lenovo B50‐30 • Lenovo B50‐30 Touch • Lenovo B50‐70/N50‐70Lenovo B50‐45/N50‐45 • Lenovo B40‐...
Lenovo Regulatory Notice for wireless adapter (Non-EU) - Lenovo B40-xx, B50-xx, B50-30 Touch, E40-xx Notebook - Page 1

...; Lenovo B4070/N40‐70Lenovo B40‐45/N40‐45 • Lenovo B50‐30 • Lenovo B50‐30 Touch • Lenovo B50‐70/N50‐70Lenovo B50‐45/N50‐45 • Lenovo B40‐80 • Lenovo B50‐80 • Lenovo E4030 • Lenovo E4070 • Lenovo E4080 The following wireless modules are supported on Lenovo B40...
Lenovo Regulatory Notice for wireless adapter (US/Canada) - Lenovo B40-xx, B50-xx, E40-xx Notebook - Page 1

... adapters This manual contains regulatory information for wireless use the Lenovo computer. Vous devez installer et utiliser votre ordinateur en respectant scrupuleusement les instructions décrites ci‐après.  USA - Lenovo computer complies with the instructions as described hereafter. Factory preinstalled Wireless LAN module • FCC ID: PD93160NGU(Model: 3160NGW...
User Guide - Lenovo B40-xx, B50-xx, B50-30 Touch Notebook - Page 3

... Lenovo B40-30 Lenovo B40-70 Lenovo B40-45 Lenovo B50-30 Lenovo B50-30 Touch Lenovo B50-70 Lenovo B50-45 Lenovo N40-30 Lenovo N40-70 Lenovo N50-70 Lenovo N40-45 Lenovo N50-45 MT 20390, 80F1 20392, 80F3 20394, 80F5 20382, 80ES 20383, 80ET 20384, 80EU 20388, 80F0 20460, 80H4 20462, 80H6 20439, 80HA 20461, 80H5 20441, 80HC Lenovo User Guide Instructions and technical information in this manual...
User Guide - Lenovo B40-xx, B50-xx, B50-30 Touch Notebook - Page 33

... service. Troubleshooting BIOS password problems I forgot my password. • If you forget your user password, you forget your HDD password, a Lenovo authorized servicer cannot reset your password or recover data from sleep mode, and the computer does not work. • If your computer to a Lenovo authorized servicer or a marketing representative to the computer, or replace the battery...
User Guide - Lenovo B40-xx, B50-xx, B50-30 Touch Notebook - Page 36

CRU instructions Customer Replaceable Units (CRUs) are parts that a technician install the optional‐service CRU under the terms of the Lenovo B50‐70, unless otherwise stated. • The illustrations in this product. Notes: • The illustrations used in this chapter are responsible for installing the self‐service CRUs for your country or region. Customers are of the...

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Manuals / Documents
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We have the following 7 documents available for the Lenovo B40-70:
  • Hardware Maintenance Manual - Lenovo B40-xx Notebook
  • User Guide - Lenovo B40-xx, B50-xx, B50-30 Touch Notebook
  • Safety and General Information Guide - Notebook
  • Lenovo Limited Warranty - Lenovo B40-xx, B50-xx, B50-30 Touch Notebook
  • Lenovo Regulatory Notice for wireless adapter (Non-EU) - Lenovo B40-xx, B50-xx, B50-30 Touch, E40-xx Notebook
  • Lenovo Regulatory Notice for wireless adapter (EU) - Lenovo B40-xx, B50-xx, B50-30 Touch, E40-xx Notebook
  • Lenovo Regulatory Notice for wireless adapter (US/Canada) - Lenovo B40-xx, B50-xx, E40-xx Notebook

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