Safety - Kenwood FG-273 Service Manual

SAFETY
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 near of
the AC inlet. If the power cord is not applied for specified
voltage, there is always a certain amount of danger from
electric shock.
Line voltage
This instrument operates using ac-power input voltages that
100/120/220/240 V at frequencies from 50 Hz to 60 Hz.
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 by an option that
is specified when the instrument is ordered.
The optional power cords are shown as follows in Fig. 1.
Plug configuration Power cord and plug type
~
North American
1 20 volt/60 Hz
Rated 15 amp
( 12 amp max; NEC)
~
Universal Europe
220 volt/50 Hz
Rated 16 amp
~
U.K.
240 volt/50 Hz
Rated 13 amp
~
Australian
240 volt/50 Hz
Rated 10 amp
~
North American
240 volt/60 Hz
Rated 15 amp
( 12 amp max; NEC)
~
Switzerland
240 volt/50 Hz
Rated 10 amp
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 may be operated from either a 1 00 V to
240 V, 50/60 Hz power source. Use the following pro-
cedure to change from 1 00 to 240 volt operation or vice
versa.
1. Replace fuse FS1 with a fuse of appropriate value, 0.3 A
slow-blow type for 1 00 VAC to 120 VAC operation,
0.2 A fast-blow for 220 VAC to 240 VAC operation.
2. Reinsert it for appropriate voltage range.
3. 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 Parts No. for power
instrument fuse plug fuse cord and plate
0.3 A, 250 V
Cord:
Slow blow
None
E30-1820-05
6x30 mm
0.2 A, 250 V
Cord:
Fast blow None
E30-1819-05
6x30 mm
0.2 A, 250 V
Fast blow
0.8 A
Type C
-
6x30 mm
0.2 A, 250 V
Cord:
Fast blow None
E30-1821-05
6x30 mm
0.2 A, 250 V
Fast blow
None
-
6x30 mm
0.2 A, 250 V
Fast blow None
-
6x30 mm
Fig. 1 Power Input Voltage Configuration
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