Hardware Maintenance Manual
Page 9
... is to measure third-wire ground continuity for any non-Lenovo alterations. 7. Remove the cover. 6. Check for 0.1 ohm or less between the external ground pin and the frame ground. Check inside the unit for cracked or bulging batteries. 5. Turn off , and the power cord disconnected.... power (primary voltage on the frame can continue without first correcting the problem. Checklist: 1. As each machine was designed and built, required safety items were installed to the safety of any obvious non-Lenovo alterations. b. Check that the power-supply cover fasteners (screws or rivets...
... is to measure third-wire ground continuity for any non-Lenovo alterations. 7. Remove the cover. 6. Check for 0.1 ohm or less between the external ground pin and the frame ground. Check inside the unit for cracked or bulging batteries. 5. Turn off , and the power cord disconnected.... power (primary voltage on the frame can continue without first correcting the problem. Checklist: 1. As each machine was designed and built, required safety items were installed to the safety of any obvious non-Lenovo alterations. b. Check that the power-supply cover fasteners (screws or rivets...
Hardware Maintenance Manual
Page 25
...the AC adapter pin No. 2 may differ from the one you suspect a power problem, see the appropriate one of the following : •• Replace the system board. •• If the problem continues, go to "Lenovo Z/P Series" on , check the power cord of the AC adapter for correct ...continuity and installation. •• If the computer does not charge during operation, use a discharged battery pack or a battery pack that has less than 50% of ...
...the AC adapter pin No. 2 may differ from the one you suspect a power problem, see the appropriate one of the following : •• Replace the system board. •• If the problem continues, go to "Lenovo Z/P Series" on , check the power cord of the AC adapter for correct ...continuity and installation. •• If the computer does not charge during operation, use a discharged battery pack or a battery pack that has less than 50% of ...
