Jameson JS-2012, Руководство пользователя

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The symbol indicates that dangerous voltages constituting a risk of electric
shock are present within this unit.
The symbol indicates that there are important operating and maintenance
instructions in the literature accompanying this unit.
This symbol indicates that this product incorporates double insulation
between hazardous mains voltage and user accessible parts
.
When
servicing use only identical replacement parts
.
CAUTION:
When the apparatus was in electrostatic circumstance, it may be
malfunction and need to reset by user.
WARNING: The USB memory stick should be plugged in the unit directly.
USB extension cable should not be used to avoid failing of data transferring
and interference caused.