Lenovo A1-07 manual Safety inspection guide

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A1-07 HMM_EN.book Page 5 Wednesday, September 28, 2011 5:06 PM

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 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 IdeaPad Tablet A1-07 A1-07 HMMEN.book Page 1 Wednesday, September 28, 2011 506 PM Contents Lenovo IdeaPad Tablet A1-07 About this manual安规文部分待确 Safety informationGeneral safety Electrical safety A1-07 HMMEN.book Page 4 Wednesday, September 28, 2011 506 PM Safety inspection guide Grounding requirements Safety notice Safety notices multilingual translationsA1-07 HMMEN.book Page 8 Wednesday, September 28, 2011 506 PM A1-07 HMMEN.book Page 9 Wednesday, September 28, 2011 506 PM Lenovo IdeaPad Tablet A1-07 Hardware Maintenance Manual Safety information Lenovo IdeaPad Tablet A1-07 Hardware Maintenance Manual Safety information Laser compliance statement Safety information Important service information Before replacing partsStrategy for replacing FRUs Important notice for replacing a system board Important service informationOriginal 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 Passwords Related service informationPower management Turning Screen Backlight On/OffSpecifications Feature DescriptionLenovo IdeaPad Tablet A1-07 Lenovo IdeaPad Tablet A1-07 Screw notices FRU replacement noticesPlastic to plastic Logic card to plasticRemoving and replacing an FRU Step Screw quantity Color Torque Battery packLenovo IdeaPad Tablet A1-07 Removal steps of Micro SD cards Micro SD cardImportant notices for handling the system board System boardRemoval steps of system board Lenovo IdeaPad Tablet A1-07 Removal steps of GPS antenna GPS antennaRemoval steps of back camera Back cameraFront view LocationsTop and Bottom view Right-side viewParts list Overall Parts list-Overall AC adapters USB CableSD Card Parts list-3-pin power cords Power cordsLenovo IdeaPad Tablet A1-07 待确认 Page Trademarks