In accordance with international safety standards, this instrument
is equipped with a three-wire power cable. When connected to an
appropriate power line outlet, this cable grounds the instrument
cabinet. Figure 3-l shows the styles of plugs available on power
cables supplied with Hewlett-Packard instruments. The HP part
numbers indicated are part numbers for the complete power
cable/plug set. The specific type of power cable/plug shipped with
the instrument depends upon the country of shipment destination.
This is a Safety Class I product (provided with a protective earthing
ground incorporated in the power cord). The mains plug shall only be
inserted in a socket outlet provided with a protective earth contact.
Any interruption of the protective conductor, inside or outside the
instrument, is likely to make the instrument dangerous. Intentional
interruption is prohibited.
Always use the three-prong ac power cord supplied with this
instrument. Failure to ensure adequate earth grounding by not using
this cord may cause instrument damage.
The offset prong of the three-prong connector is the grounding pin.
The protective grounding feature is preserved when operating the
synthesizer from a two contact outlet by using a three-prong to a
two-prong adapter and connecting the green wire of the adapter to
ground. An adapter is available (for US connectors only) as HP part
Install the instrument so that the detachable power cord is readily
identifiable and is easily reached by the operator. The detachable
power cord is the instrument disconnecting device. It disconnects
the mains circuits from the mains supply before other parts of the
instrument. The front panel switch is only a standby switch and is
not a LINE switch. Alternately, an externally installed switch or
circuit breaker (which is readily identifiable and is easily reached by
the operator) may be used as a disconnecting device.