Lenovo B6000, B8000 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 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 B6000 / B8000 Page Contents Lenovo B6000 Lenovo B8000 About this manualSafety information General safety Electrical safety Lenovo B6000/B8000 Hardware Maintenance Manual Safety inspection guide Grounding requirements Safety notice Safety notices multilingual translationsLenovo B6000/B8000 Hardware Maintenance Manual Safety information Lenovo B6000/B8000 Hardware Maintenance Manual Safety information Lenovo B6000/B8000 Hardware Maintenance Manual Safety information Laser compliance statement Safety information Strategy for replacing FRUs Before replacing partsImportant 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 warrantyChecking the internal battery status Power system checkoutApproximate information about the battery status Accurate information about the battery statusLenovo B6000/B8000 Hardware Maintenance Manual Power management SecurityActivating/Deactivating the Display Feature Description SpecificationsLenovo B6000 / B8000 Screw notices FRU replacement noticesPlastic to plastic Logic card to plasticRemoving and replacing an FRU Peeling off the label on the rear cover Rear coverSeparating the rear cover using a suction tool Unlocking the central area of the rear cover Step Screw quantity Color Torque Screws on the holder of the speaker box Right speaker boxDisconnecting the speaker FPC Prying off the holder Removing the speaker box Hinge frame and pivot Disconnecting the main FPCRemoving the hinge frame with the main FPC at the left end Removing the hinge pivot Main camera Disconnecting the main camera FPCDetaching the main camera Screws fixing the left speaker box Left speaker boxScrews on the main antenna Main antennaPhillips flat-head, M1.4 × 1.5 Black N/A Screw on the WiFi antenna WiFi antennaWiFi antenna frame detached Important notices for handling PCB Main PcbaRemoving the conductive fiber Removing the USB FPC holder Disconnecting the FPC between the main Pcba and sub board Disconnecting the LCD FPC Removing the adhisive tapes Main Pcba removed 10 Unlock the main antenna FPC connector 12 Main antenna removed Screws on the sub board Sub boardDisconnecting the TP FPC Detaching the vibrator motor Pushing out the power button Power buttonFront view LocationsRear view Parts list Overall Lenovo B6000 / B8000 Parts list-Overall for Lenovo B6000 only Parts list-Overall for Lenovo B8000 only Screw Parts list-ScrewPage Trademarks