Lenovo 13 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 due to attachment of non-Lenovo 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 alterations. Use good judgment as to the safety of any non-Lenovo 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 IdeaPad Yoga Page Contents Lenovo IdeaPad Yoga About this manualSafety information General safety Electrical safety Lenovo IdeaPad Yoga 13 Hardware Maintenance Manual Safety inspection guide Grounding requirements Safety notice Safety notices multilingual translationsLenovo IdeaPad Yoga 13 Hardware Maintenance Manual Safety information Lenovo IdeaPad Yoga 13 Hardware Maintenance Manual Safety information Lenovo IdeaPad Yoga 13 Hardware Maintenance Manual Safety information Laser compliance statement Safety information Strategy for replacing FRUs Before replacing partsImportant notice for replacing a system board Strategy for replacing a hard disk driveOriginal part Important information about replacing RoHS compliant FRUsGeneral checkout What to do first Following are not covered under warrantyPower system checkout Checking the AC adapterChecking operational charging Checking the battery pack Restoring the factory contents by using Recovery Disc Set Related service informationPower-on password PasswordsHard-disk password Supervisor passwordPower management Screen blank statePutting the computer to sleep or shutting it down Shutting down the computer Feature Description SpecificationsPorts Hdmi port × Status indicators Hotkeys Description HotkeysScrew notices FRU replacement noticesPlastic to plastic Logic card to plasticRemoving and replacing an FRU Removal steps of keyboard KeyboardLenovo IdeaPad Yoga 13 Hardware Maintenance Manual Step Screw quantity Color Torque Keyboard bezelLenovo IdeaPad Yoga 13 Hardware Maintenance Manual Removal steps of battery pack Battery packLenovo IdeaPad Yoga 13 Hardware Maintenance Manual Removal steps of dummy card Dummy cardRemoval steps of Dimm DimmRemoval steps of SSD Card SSD CardRemoval steps of fan assembly and heat sink assembly Fan assembly and Heat Sink assemblyLenovo IdeaPad Yoga Important notices for handling the system board System boardRemoval steps of system board Lenovo IdeaPad Yoga 13 Hardware Maintenance Manual Lenovo IdeaPad Yoga LCD unit When installingLenovo IdeaPad Yoga M2 × 2 mm, flat-head, nylok-coated Black Kgfcm Lenovo IdeaPad Yoga M2 × 3 mm, flat-head, nylok-coated Black Kgfcm Lenovo IdeaPad Yoga Applying labels to the base cover Removal steps of LCD front bezel LCD front bezelFront view LocationsBottom and Left-side view Right-side view Parts list Overall Parts list-Overall Venusrubberfootbacksilver Keyboard Miscellaneous parts Parts list-Miscellaneous parts AC adapters Parts list-2-pin AC adaptersParts list-2-pin power cords Power cordsPage Trademarks