User Manual
Page 11
... installing main units v Before you need to work on suitable rubber mats (obtained locally, if necessary) to switch off (EPO) switch, disconnecting switch, or electrical outlet. v If you start to work on the machine, unplug the power cord. Stand on a machine that has hazardous voltages. Observe the special safety precautions when...
... installing main units v Before you need to work on suitable rubber mats (obtained locally, if necessary) to switch off (EPO) switch, disconnecting switch, or electrical outlet. v If you start to work on the machine, unplug the power cord. Stand on a machine that has hazardous voltages. Observe the special safety precautions when...
User Manual
Page 14
... even when you use an ESD common ground or reference point. v Select a grounding system, such as fully effective. Grounding requirements Electrical grounding of the electrical outlet can be considered sensitive to electrostatic discharge (ESD.) ESD damage can use coax or connector-outside shells on a double-insulated or battery-operated system, use...
... even when you use an ESD common ground or reference point. v Select a grounding system, such as fully effective. Grounding requirements Electrical grounding of the electrical outlet can be considered sensitive to electrostatic discharge (ESD.) ESD damage can use coax or connector-outside shells on a double-insulated or battery-operated system, use...
User Manual
Page 17
DANGER Though the main batteries have low voltage, a shorted or grounded battery can produce enough current to burn personnel or combustible materials. DANGER Unless hot swap is allowed for the FRU being replaced, do as follows before removing it: power off the computer, unplug all power cords from electrical outlets, remove the battery pack, and disconnect any interconnecting cables. Safety information 9
DANGER Though the main batteries have low voltage, a shorted or grounded battery can produce enough current to burn personnel or combustible materials. DANGER Unless hot swap is allowed for the FRU being replaced, do as follows before removing it: power off the computer, unplug all power cords from electrical outlets, remove the battery pack, and disconnect any interconnecting cables. Safety information 9
User Manual
Page 85
... person runs the risk of the page. Verify this by removing any FRUs that have made sure that all power cords from electrical outlets, remove the battery pack, and then disconnect any computer unless you have to service any interconnecting cables. Removing and replacing a FRU This... presents directions and drawings for use the correct screw as given by using an electrostatic discharge (ESD) strap (P/N 6405959). © Copyright Lenovo 2010 77 Begin by shaking the computer gently and listening for rattling sounds. DANGER Before removing any FRU, turn on the computer until you...
... person runs the risk of the page. Verify this by removing any FRUs that have made sure that all power cords from electrical outlets, remove the battery pack, and then disconnect any computer unless you have to service any interconnecting cables. Removing and replacing a FRU This... presents directions and drawings for use the correct screw as given by using an electrostatic discharge (ESD) strap (P/N 6405959). © Copyright Lenovo 2010 77 Begin by shaking the computer gently and listening for rattling sounds. DANGER Before removing any FRU, turn on the computer until you...