Lenovo Z710 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 Z710 Page Contents IdeaPad Z710 About this manualSafety information General safety Electrical safety Lenovo Z710 Hardware Maintenance Manual Safety inspection guide Grounding requirements Safety notice Safety notices multilingual translationsLenovo Z710 Hardware Maintenance Manual Safety information Lenovo Z710 Hardware Maintenance Manual Safety information Lenovo Z710 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 modePutting the computer to sleep or shutting it down Shutting down the computer Feature Description SpecificationsWlan Status indicators Symbol Indicator status Meaning Fn key combinations Fn key combinationsScrew notices FRU replacement noticesPlastic to plastic Logic card to plasticRemoving and replacing an FRU Removal steps of battery pack Battery packRemoval steps of dummy cards Dummy card OptionalStep Screw quantity Color Torque Removal steps of hard disk drive Hard disk driveLenovo Z710 Hardware Maintenance Manual M3 × 3 mm, flat-head, nylokcoated Black ~ 2.0 kgfcm 90202769 Removal steps of optical drive Optical driveRemoval steps of Dimm DimmRemoval steps of PCI Express Mini Card for wireless LAN/WAN PCI Express Mini Card for wireless LAN/WANWhen installing Removal steps of keyboard KeyboardLenovo Z710 Removal steps of fan assembly Fan assemblyRemoval steps of keyboard bezel Keyboard bezelRemove five screws b Lenovo Z710 Important notices for handling the system board System boardRemoval steps of system board Lenovo Z710 Hardware Maintenance Manual Lenovo Z710 Removal steps of LCD unit LCD unitLenovo Z710 Removal steps of CPU 1130 CPUStep Screw quantity Color Torque M2.0 × 6 mm, flat-head, nylok-coated Black ~ 2.0 kgfcm M2 × 3 mm, flat-head, nylok-coated Black ~ 2.0 kgfcm M2 × 3 mm, flat-head, nylok-coated Black ~1.5 kgfcm Lenovo Z710 Removal steps of LCD front bezel LCD front bezelLenovo Z710 Removal steps of LCD panel, LCD cable and hinges LCD panel, LCD cable and hingesLenovo Z710 Removal steps of integrated camera Integrated cameraRemoval steps of antenna assembly and LCD cover Antenna assembly and LCD coverFront view LocationsRight-side view Bottom and Left-side view Parts list Overall Parts list-Overall HMT41GS6AFR8A-PB 8GB DDR3L LCD FRUs 17.3-in. HD TFT Keyboard Lenovo Z710 Hardware Maintenance Manual Lenovo Z710 JME Lenovo Z710 Miscellaneous parts Parts list-Miscellaneous partsScrews AC adaptersParts list-3-pin power cords Power cordsLenovo Z710 145000579 Linetek PC323+RVV300/300+LS15 1m white Lenovo Z710 Parts list-2-pin power cords Lenovo Z710 Lenovo Z710 Hardware Maintenance Manual Trademarks