Sun Microsystems Ultra 5, Service Manual

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Chapter 5 Preparing for Component Replacement 5-3
5.3.3 Power Cord Connection
Caution –
Not all power cords have the same current ratings. Household extension
cords do not have overload protection. Do not use household extension cords with a
Sun product.
Caution –
The power switch on this product functions as a standby type device
only. The power cord serves as the primary disconnect device for the system. Be sure
to connect the power cord into a grounded electrical receptacle that is nearby the
system and is readily accessible. Do not connect the power cord when the power
supply has been removed from the system chassis.
Caution –
The power supply of this product is not an autoranging power supply.
You must set the power supply voltage setting to either 115V or 230V on the voltage
select switch. Failure to correctly set this switch may result in damage to the
equipment.
5.3.4 Electrostatic Discharge
Caution –
The boards and hard drives contain electronic components that are
extremely sensitive to static electricity. Ordinary amounts of static electricity from
clothing or the work environment can destroy components. Do not touch the
components themselves or any metal parts. Wear an antistatic wrist strap when
handling the drive assemblies, boards, or cards.
Caution –
Wear an antistatic wrist strap and use an ESD-protected mat when
handling components. When servicing or removing system components, attach an
ESD strap to your wrist, then to a metal area on the chassis. Then disconnect the
power cord from the system and the wall receptacle. Following this caution
equalizes all electrical potentials with the system.