Safety - Kenwood VT-183 Service Manual

VT-183

SAFETY

Before connecting the instrument to a power source, care-
fully read the following information, then verify that the
proper power cord is used and the proper line fuse is
installed for power source. The specified voltage is shown
on the rear panel. If the power cord is not applied for
specified voltage, there is always a certain amount of dan-
ger of electric shock.
Line voltage
This instrument operates using ac-power input voltages
that 100/120/220/230 V at frequencies from 50 Hz to
60Hz.
Power cord
The ground wire of the 3-wire AC power plug places the
chassis and housing of the instrument at earth ground. Do
not attempt to defeat the ground wire connection or float
the instrument ; to do so may pose a great safety hazard.
The appropriate power cord is supplied as an option that
is specified when the instrument is ordered.
The optional power cords are shown as follows in Fig.1
Plug configuration
4
SAFETY
power cord and plug type
North American
120 volt/60 Hz
Rated 15 amp
(12 amp max ; NEC)
Universal Europe
230 volt/50 Hz
Rated 16 amp
U.K.
230 volt/50 Hz
Rated 5 amp
Australian
240 volt/50 Hz
Rated 10 amp
North American
240 volt/60 Hz
Rated 15 amp
(12 amp max ; NEC)
Switzerland
230 volt/50Hz
Rated 10 amp
Fig.1 Power Input Voltage Configuration
Line fuse
The fuse holder is located on the rear panel and contains
the line fuse. Verify that the proper fuse is installed by
replacing the line fuse.
Voltage conversion
This instrument can be operated from 100 to 230V,
50/60Hz power source.
Use the following procedure to change from 100 to 230V
operation or vice versa.
1. Remove the fuse holder.
2. Replace fuse F1 with a fuse of appropriate value.
3. Reinsert it for appropriate voltage range.
4. When performing the reinsertion of fuse holder for the
voltage conversion, the appropriate power cord should
be used. (See fig.1)
Factory installed Line cord
instrument fuse plug fuse
0.2A, 250V
slow blow
None
5x20mm
0.1A, 250V
slow blow None
5x20 mm
0.1A, 250V
5A
slow blow
Type C
5x20 mm
0.1A, 250V
slow blow None
5x20 mm
0.2A, 250V
slow blow
None
5x20mm
0.3A, 250V
slow blow None
5x20 mm
Parts No. for
power cord
E30-1983-08
E30-1982-08
E30-1985-08
E30-1986-08
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