Hardware Maintenance Manual
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... Front view 77 Right-side view 78 Bottom and left-side view 78 Chapter 9. Notices 93 Electronic emissions notices 94 Trademarks 94 © Copyright Lenovo 2012 i Lenovo B490 37 Specifications 37 Status indicators 38 Fn key combinations 39 Chapter 6. General checkout . . . . . 29 What to electrostatic discharge 3 Grounding requirements 4 Safety notices (multilingual translations) . . . . . 4 Laser compliance...
... Front view 77 Right-side view 78 Bottom and left-side view 78 Chapter 9. Notices 93 Electronic emissions notices 94 Trademarks 94 © Copyright Lenovo 2012 i Lenovo B490 37 Specifications 37 Status indicators 38 Fn key combinations 39 Chapter 6. General checkout . . . . . 29 What to electrostatic discharge 3 Grounding requirements 4 Safety notices (multilingual translations) . . . . . 4 Laser compliance...
Hardware Maintenance Manual
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...; The product-specific section includes service, reference, and product-specific parts information. Important: • This manual is divided into the following Lenovo® products.... Use this manual This manual provides service and reference information for the following sections: • The common sections provide general information, guidelines, and safety information required for trained service technicians who are familiar with Lenovo products. Machine Lenovo B490...
...; The product-specific section includes service, reference, and product-specific parts information. Important: • This manual is divided into the following Lenovo® products.... Use this manual This manual provides service and reference information for the following sections: • The common sections provide general information, guidelines, and safety information required for trained service technicians who are familiar with Lenovo products. Machine Lenovo B490...
Hardware Maintenance Manual
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...edges). 2. Check that are any potentially unsafe conditions, use good judgment to identify potential safety hazards due to attachment of non-Lenovo features or options not covered by equalizing the charge so that the machine, the part, the work mat, and the person handling...parts list. Notes: 1. Use caution; Safety inspection guide The purpose of fire or smoke damage. 8. b. Check for any non-Lenovo alterations. 7. Use product-specific ESD procedures when they present: • Electrical hazards, especially primary power (primary voltage on the frame can cause serious or fatal electrical...
...edges). 2. Check that are any potentially unsafe conditions, use good judgment to identify potential safety hazards due to attachment of non-Lenovo features or options not covered by equalizing the charge so that the machine, the part, the work mat, and the person handling...parts list. Notes: 1. Use caution; Safety inspection guide The purpose of fire or smoke damage. 8. b. Check for any non-Lenovo alterations. 7. Use product-specific ESD procedures when they present: • Electrical hazards, especially primary power (primary voltage on the frame can cause serious or fatal electrical...
Hardware Maintenance Manual
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... green-wire ground. - When working on ac-operated computers. Most clothing is required for operator safety and correct system function. Make sure that meets the specific service requirement. Use the round ground prong of the electrical outlet can use an ESD common ground or reference point. 2.
... green-wire ground. - When working on ac-operated computers. Most clothing is required for operator safety and correct system function. Make sure that meets the specific service requirement. Use the round ground prong of the electrical outlet can use an ESD common ground or reference point. 2.
Hardware Maintenance Manual
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...; HDMI port • External monitor connector • 4-in-1 digital media card reader slot © Copyright Lenovo 2012 37 External monitor: Maximum 2048-by -768 - Lenovo B490 This chapter presents the following product-specific service references and parts information: • "Specifications" on page 37 • "Status indicators" on page 38 • "Fn key combinations" on some...
...; HDMI port • External monitor connector • 4-in-1 digital media card reader slot © Copyright Lenovo 2012 37 External monitor: Maximum 2048-by -768 - Lenovo B490 This chapter presents the following product-specific service references and parts information: • "Specifications" on page 37 • "Status indicators" on page 38 • "Fn key combinations" on some...
Hardware Maintenance Manual
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If you have a torque screwdriver, refer to the Torque column in the screw information table for each step. • Make sure that you have a torque screwdriver, tighten all screws firmly to use the correct screw. It is recommended 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 • Torque driver If you use new screws for replacements.
If you have a torque screwdriver, refer to the Torque column in the screw information table for each step. • Make sure that you have a torque screwdriver, tighten all screws firmly to use the correct screw. It is recommended 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 • Torque driver If you use new screws for replacements.
Hardware Maintenance Manual
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... the CRU yourself or you might be included with finger print reader and touch pad. - Once the access panel is removed, the specific CRU is your product in the CRU ID column means that the part is typically secured by no more than two screws. An N...CRU. See your product. Installation of CRUs: - Chapter 9. Parts list This chapter contains following types of self-service CRUs is visible. © Copyright Lenovo 2012 79 A single asterisk (*) means that are shipped with a replacement part you . CRU statement for full details. You can be charged for your...
... the CRU yourself or you might be included with finger print reader and touch pad. - Once the access panel is removed, the specific CRU is your product in the CRU ID column means that the part is typically secured by no more than two screws. An N...CRU. See your product. Installation of CRUs: - Chapter 9. Parts list This chapter contains following types of self-service CRUs is visible. © Copyright Lenovo 2012 79 A single asterisk (*) means that are shipped with a replacement part you . CRU statement for full details. You can be charged for your...
Hardware Maintenance Manual
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... that these changes will be incorporated in this document does not affect or change Lenovo product specifications or warranties. All information contained in this document does not give you . Lenovo may result in a controlled environment. Actual results may have patents or pending patent...do not allow disclaimer of any obligation to : Lenovo (United States), Inc. 1009 Think Place - The information contained in specific environments and is at those Web sites are provided for their specific environment. © Copyright Lenovo 2012 93 Users of those Web sites. You can...
... that these changes will be incorporated in this document does not affect or change Lenovo product specifications or warranties. All information contained in this document does not give you . Lenovo may result in a controlled environment. Actual results may have patents or pending patent...do not allow disclaimer of any obligation to : Lenovo (United States), Inc. 1009 Think Place - The information contained in specific environments and is at those Web sites are provided for their specific environment. © Copyright Lenovo 2012 93 Users of those Web sites. You can...