Lenovo K3011W manual Safety inspection guide

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Safety information

Safety inspection guide

The purpose of this inspection guide is to assist you in identifying potential unsafe conditions. As each machine was designed and built, required safety items were installed to protect users and service personnel from injury. This guide addresses only those items. You should use good judgment to identify potential safety hazards according to the attachment of non-Lenovo IdeaTab features or options not covered by this inspection guide.

If any unsafe conditions are present, you must determine how serious the apparent hazard could be and whether you can continue without first correcting the problem.

Consider these conditions and the safety hazards they present:

•• Electrical hazards, especially primary power (primary voltage on the frame can cause serious or fatal electrical shock)

•• Explosive hazards, such as a damaged CRT face or a bulging capacitor

•• Mechanical hazards, such as loose or missing hardware

To determine whether there are any potential unsafe conditions, use the following checklist at the beginning of every service task. Begin the checks with the power off, and the power cord disconnected.

Checklist:

1.Check exterior covers for damage (loose, broken, or sharp edges).

2.Turn off the computer. Disconnect the power cord.

3.Check the power cord for:

a.A third-wire ground connector in good condition. Use a meter to measure third-wire ground continuity for 0.1 ohm or less between the external ground pin and the frame ground.

b.The power cord should be the type specified in the parts list.

c.Insulation must not be frayed or worn.

4.Check for cracked or bulging batteries.

5.Remove the cover.

6.Check for any obvious non-Lenovo IdeaTab alterations. Use good judgment as to the safety of any non-Lenovo IdeaTab alterations.

7.Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage.

8.Check for worn, frayed, or pinched cables.

9.Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with.

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Contents Lenovo IdeaTab K3011W First Edition Oct Copyright Lenovo 2012. All rights reserved Contents About this manual Safety information General safety Electrical safety IdeaTab K3011W Hardware Maintenance Manual Safety inspection guide Grounding requirements Safety notice Safety notices multilingual translationsIdeaTab K3011W Hardware Maintenance Manual Safety information IdeaTab K3011W Hardware Maintenance Manual Safety information IdeaTab K3011W Hardware Maintenance Manual Safety information Laser compliance statement Safety information Strategy for replacing FRUs Important service informationImportant notice for replacing a system board Important service informationImportant information about replacing RoHS compliant FRUs General checkout What to do first Following are not covered under warrantyPower system checkout Checking the AC adapterChecking operational charging IdeaTab K3011W Hardware Maintenance Manual Restoring the factory contents by using OneKey Recovery Related service informationPasswords Power-on passwordSupervisor password Power management Screen blank modeSleep standby mode Lenovo IdeaTab K3011W SpecificationsLenovo IdeaTab K3011W Status indicators Status indicatorsHotkeys Function key combinationsScrew notices FRU replacement noticesRemoving and replacing an FRU Disassemble the keyboard in the direction shown by arrows KeyboardRemoval steps of keyboard bezel Keyboard bezelRemove the keyboard bezel in the direction shown by arrow Lenovo IdeaTab K3011W Removal steps of dock battery pack Dock battery packLenovo IdeaTab K3011W Removal steps of dock cradle board Dock cradle boardRemoval steps of hinge module Hinge moduleRemoval steps of tablet base cover Tablet base coverRemove the base cover in the direction shown by arrow IdeaTab K3011W Hardware Maintenance Manual Integrated camera Detach the FPC connector in the direction shown by arrows 1Removal steps of tablet USB board and button board Tablet USB board and button boardLenovo IdeaTab K3011W Important notices for handling the system board System boardRemove two screws 5 and eight screws Removal steps of speakers SpeakersRemoval steps of micro Hdmi board Micro Hdmi boardAntenna assembly Removal steps of tablet battery pack Tablet battery packTablet LocationsDock Parts list Overall Tablet Parts list-Overall AC adapters Parts list-3-pin AC adaptersPage Trademarks