HP 85662A, Руководство по устранению неисправностей и ремонту

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Safety Symbols
The following safety symbols are used throughout this manual. Familiarize yourself with each
of the symbols and its meaning before operating this instrument.
Caution
The
caution
sign denotes a hazard. It calls attention to a procedure which,
if not correctly performed or adhered to, could result in damage to or
destruction of the instrument. Do not proceed beyond a
caution
sign until the
indicated conditions are fully understood and met.
Warning The
warning
sign denotes a hazard. It calls attention to a procedure which,
if not correctly performed or adhered to, could result in injury or loss of life.
Do not proceed beyond a
warning
sign until the indicated conditions are fully
understood and met.
General Safety Considerations
Warning
Before this instrument is switched on,
make sure it has been properly grounded
through the protective conductor of the ac power cable to a socket outlet
provided with protective earth contact.
Any interruption of the protective (grounding) conductor, inside or outside
the instrument, or disconnection of the protective earth terminal can result in
personal injury.
Warning
There are many points in the instrument which can, if contacted, cause personal
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injury. Be extremely careful.
Any adjustments or service procedures that require operation of the instrument
protective covers removed should be performed only by trained service
personnel.
Caution
Before this instrument is switched on,
make sure its primary power circuitry
has been adapted to the voltage of the ac power source.
Failure to set the ac power input to the correct voltage could cause damage to
the instrument when the ac power cable is plugged in.