Hitachi V-355 Operation Manual page 6

*
Do not apply a heavy shock to the oscilloscope.
*
Do not insert a wire, pin, etc . through the ventilation hole.
*
Do not drag the set, leaving the probe attached to it.
!
g
*
Do not le ave a hot soldering iron on the cabinet or the
screen.
*
Do not try to turn the instrument upside down . Otherwise,
knob s may be broken.
*
Do not use the instrument upright, leaving BNC cable
connected to EXT BLANKING terminal on the rear panel.
Otherwise, the cable may be damaged.
in
When not use
When not in use, put the dust-proof cover on the instrument
and store it with care .
When operation is faulty
Recheck the operating procedure and if problem persists,
contact a nearly service station or agent.
3