Lenovo B490 driver and firmware
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Related Lenovo B490 Manual Pages
Hardware Maintenance Manual - Page 2
... general information under Appendix A "Notices" on page 93. First Edition (October 2012) © Copyright Lenovo 2012. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services Administration "GSA" contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-35F-05925.
Hardware Maintenance Manual - Page 8
... inspection - Working near power supplies - Removing or installing main units • Before you ... passing through your body. - When using testers, set the controls correctly and use the approved ... when you work with very high voltages; Instructions for these precautions are in the safety sections of maintenance ... are moist floors, nongrounded power extension cables, power surges, and missing safety ...
Hardware Maintenance Manual - Page 9
... you in identifying potentially unsafe conditions. As each machine was designed and built, required safety items were installed to protect users and service technicians from injury. This guide addresses only those items. You should use good judgment to identify potential safety hazards due to attachment of ...
Hardware Maintenance Manual - Page 33
... any FRUs listed in this manual. After a system board is replaced, ensure that the latest BIOS is installed to the system board before completing the service action. To download software fixes, drivers, and BIOS, do the following: 1. Go to http://www.lenovo.com/support. 2. Click Download Drivers & Software...
Hardware Maintenance Manual - Page 35
...that have nothing to do with a hardware defect, such as cosmic radiation, electrostatic discharge, or software errors. Consider replacing a FRU only when a problem recurs. If you ... spilled into the system • Damage caused by the improper insertion of a PC Card or the installation of an incompatible card • Improper disc insertion or use of an optical drive © Copyright Lenovo 2012 29
Hardware Maintenance Manual - Page 36
...does not turn on, check the power cord of the ac power adapter for correct continuity and installation. • If the computer does not charge during operation, go to "Checking operational charging" on page 31....If the voltage is acceptable, do the following: • Replace the system board. • If the problem persists, go to Chapter 5 "Lenovo B490" on page 37. 30 Hardware Maintenance Manual
Hardware Maintenance Manual - Page 37
... discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer. Perform operational charging. If the ... system you are using, do the following: • Windows 7: Open the Power Manager program and click the... tab. • Windows 8: - On the Windows operating system, press the recovery button to launch the Lenovo Solution Center ...
Hardware Maintenance Manual - Page 39
... the recovery programs that are available for you to recover the computer settings. • Windows 7: The following recovery programs are ... hard disk drive contents, including the operating system, data files, software programs, and personal settings. You can designate where the...default settings Attention: When you use the Windows recovery program to restore the computer settings, all the data you ...
Hardware Maintenance Manual - Page 40
If any of these passwords has been set, a prompt for it will be displayed on the screen whenever the computer is turned on. The computer does not start .... Screen blank mode In the following circumstances, the computer goes into screen blank mode: • The time set on the "Turn off monitor" timer on the Windows 7 operating system expires. To end screen blank mode and resume normal operation, ...
Hardware Maintenance Manual - Page 43
..." on page 39 Specifications This topic lists the physical features for the Lenovo B490 models. Processor • Windows 7: To view the system properties of your computer, click Start, right-click Computer; then click ...; HDMI port • External monitor connector • 4-in-1 digital media card reader slot © Copyright Lenovo 2012 37
Hardware Maintenance Manual - Page 45
... Fn+F2 Fn+F3 Description Launches the camera and audio settings window. Puts the computer into sleep mode. To resume normal ... monitor. Note: You also can use the Windows+P combination to switch between the computer display and an external monitor. Enables or disables the built-in wireless networking features. Enables or ...Fn+F9 Fn+F10 Fn+F11 Fn+F12 Fn+PgUp Fn+PrtSc Fn+Home Chapter 5. Lenovo B490 39
Hardware Maintenance Manual - Page 47
...problems with your product with a replacement part you can install yourself, called a "Customer Replaceable Unit" or "... for your product. If you intend on installing the CRU, Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped... screws can cause a reliability problem. In the Lenovo notebook computer, this problem is addressed with special nylon-coated screws that...
Hardware Maintenance Manual - Page 48
• Torque driver If you have a torque screwdriver, refer to the Torque column in the screw information table for each step. • Make sure that you use the... screwdriver, tighten all screws firmly to the torque specified in the screw information table for each step. • Ensure torque screw drivers are calibrated correctly following country specifications. 42 Hardware Maintenance Manual
Hardware Maintenance Manual - Page 49
... problems with your product with a replacement part you can install yourself, called a "Customer Replaceable Unit" or "... for your product. If you intend on installing the CRU, Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped ... manual can be found at http://www.lenovo.com/UserManuals. Follow the on-screen instructions to find the manual for your product. You ...
Hardware Maintenance Manual - Page 50
... battery specified in the parts list for your computer. Any other battery could ignite or explode. Unlock the spring-loaded battery latch 1 . Holding the manual battery latch in the unlocked position, remove the battery pack in the direction shown by the arrow 2 . 1 2 2 When installing: Install the battery pack in the slot. Ensure that the battery latches are in ...
Hardware Maintenance Manual - Page 53
...in the direction shown by the arrow 2 . 1 2 1 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 SLOT-1 ( b : upper slot). b a When installing: Insert the notched end of the memory module into the socket. Press the memory module firmly, and pivot it until it ...
Hardware Maintenance Manual - Page 54
...; 3 mm, flat-head, nylon-coated (1) Color Black Torque 1.85 kgf-cm Remove the hard disk drive from the slot 3 . 3 When installing: Make sure that the hard disk drive connector is attached firmly. Removal steps of hard disk drive bracket Remove the screws ...1 1 1 Step 1 Screw (quantity) M3 × 4 mm, flat-head, nylon-coated (4) Color Silver Torque 4 kgf-cm 48 Hardware Maintenance Manual
Hardware Maintenance Manual - Page 56
Remove the card in the direction shown by the arrow 3 . 3 When installing: Plug the black cable (MAIN) into the jack labeled A, and the white cable (AUX) into the jack labeled B on the card. 1070 mSATA solid state drive For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot cover" on page 44 Attention: • Do not drop the ...
Hardware Maintenance Manual - Page 57
... 44 Removal steps of backup battery DANGER Use only the battery specified in the parts list for your computer. Any other battery could ignite or explode. Detach the connector 1 , and then remove the battery pack in the direction shown by the arrow 2 . 2 1 When installing: Ensure that the connector is attached firmly. 1090 Keyboard For access, remove these FRUs in order: ...
Hardware Maintenance Manual - Page 58
Removal steps of keyboard Remove the screws 1 . 1 1 1 When installing: Ensure that the screws have been fastened to secure the keyboard. Step 1 Screw (quantity) M2.5 ...Color Black Torque 4.0 kgf-cm Push hard in the direction shown by the arrow 2 to unlatch the front side of the keyboard. 2 When installing: Ensure that the keyboard connector is attached firmly. 52 Hardware Maintenance Manual
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