Lenovo U260 manual Grounding requirements

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IdeaPad U260 Hardware Maintenance Manual

Handling devices that are sensitive to electrostatic discharge

Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge.

Notes:

1.Use product-specific ESD procedures when they exceed the requirements noted here.

2.Make sure that the ESD protective devices you use have been certified (ISO

9000) as fully effective.

When handling ESD-sensitive parts:

•• Keep the parts in protective packages until they are inserted into the product.

•• Avoid contact with other people.

•• Wear a grounded wrist strap against your skin to eliminate static on your body.

•• Prevent the part from touching your clothing. Most clothing is insulative and retains a charge even when you are wearing a wrist strap.

•• Use the black side of a grounded work mat to provide a static-free work surface. The mat is especially useful when handling ESD-sensitive devices.

•• Select a grounding system, such as those listed below, to provide protection that meets the specific service requirement.

Note:

The use of a grounding system to guard against ESD damage is desirable but not necessary.

Attach the ESD ground clip to any frame ground, ground braid, or green- wire ground.

When working on a double-insulated or battery-operated system, use an ESD common ground or reference point. You can use coax or connector- outside shells on these systems.

Use the round ground prong of the ac plug on ac-operated computers.

Grounding requirements

Electrical grounding of the computer is required for operator safety and correct system function. Proper grounding of the electrical outlet can be verified by a certified electrician.

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Contents IdeaPad U260 First Edition Aug Copyright Lenovo 2010. All rights reserved Contents About this manual Safety information General safety Electrical safety IdeaPad U260 Hardware Maintenance Manual Safety inspection guide Grounding requirements Safety notices multilingual translations Safety noticeIdeaPad U260 Hardware Maintenance Manual Safety information IdeaPad U260 Hardware Maintenance Manual Safety information IdeaPad U260 Hardware Maintenance Manual Safety information Laser compliance statement Safety information Important service information Strategy for replacing FRUsStrategy for replacing a hard disk drive Important notice for replacing a system boardImportant information about replacing RoHS compliant FRUs General checkout Following are not covered under warranty What to do firstChecking the AC adapter Power system checkoutChecking operational charging Checking the battery pack Related service information Restoring the factory contents by using OneKey RecoveryPower-on password PasswordsSupervisor password Screen blank mode Power managementSleep standby mode Hibernation mode Specifications SpecificationsIdeaPad U260 Hardware Maintenance Manual Status indicators Status indicatorsFlashing white Fn key combinations Fn key combinationsFRU replacement notices Screw noticesRemoving and replacing an FRU Keyboard Removal steps of keyboardKeyboard bezel Removal steps of keyboard bezelIdeaPad U260 Hardware Maintenance Manual M1.98 × 3 mm, flat-head, nylok-coated White ~1.5 kgfcm M1.98 × 3 mm, flat-head, nylok-coated White Battery pack Removal steps of battery packPCI Express Mini Card for wireless LAN Removal steps of PCI Express Mini Card for wireless LANWhen installing LCD unit Removal steps of LCD unitRemove the LCD unit in the direction shown by arrows Hard disk drive Removal steps of hard disk driveDimm Removal steps of DimmFan assembly and Heat Sink assembly Removal steps of fan assembly and heat sink assemblyWhen installing Speakers Removal steps of speakersSystem board Important notices for handling the system boardRemoval steps of system board Base cover Removal steps of base coverIdeaPad U260 Hardware Maintenance Manual LCD front bezel Removal steps of LCD front bezelLCD panel, LCD cable and hinges Removal steps of LCD panel, LCD cable and hingesM2 × 3 mm, flat-head, nylok-coated Black ~1.5 kgfcm Integrated camera Removal steps of integrated cameraAntenna assembly and LCD cover Removal steps of antenna assembly and LCD coverLocations Front viewRight-side view Bottom and Left-side viewParts list Overall Parts list-Overall No. FRU FRU noNIUM1 Logic LOWER-BROWN AM0DZ000310 LCD FRUs Parts list-12.5-in. HD TFT 12.5-in. HD TFTParts list-Keyboard Parts list-Miscellaneous parts Miscellaneous partsParts list-3-pin AC adapters AC adaptersPower cords Parts list-3-pin power cords145000538 Lenovo IdeaPad U260 IdeaPad U260 Hardware Maintenance Manual Trademarks APS
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