JUKI 6100 Technical Manual page 53

Fig.
7.4
is
a
diagram
of the
power
transformer.
As shown
below,
the
transformer
accepts line
input voltages
in
one
of
two
ranges
depending on
the
country
where
it is
to
be used.
The
input voltage
is
applied
to
the
primary windings
of the
trans-
former and
is
converted
to
two
output voltages of
approximately
1
5
VAC
and 27
VAC. The
1
5
VAC
is
filtered
and
regulated to
develop +1 2
and -1
2 volts
DC
for
the
serial
interface option.
The
27
VAC
is
filtered
and
regulated to develop
+5
volts
DC, +24
volts
DC
and
+30
volts
DC. The +30
volts
DC
is
developed
by
means
of
a
voltage doubler,
filter
and
regulator.
Table
7.2
below shows
the
distri-
bution of
the
DC
voltages within the
printer.
120 240
VAC
TO OR TO
100 220
VAC
PT
JP2
-o
o-
JP1
PRIMARY
15
VAC
27
VAC
SECONDARY
Fig.
7.4
Table
7.2
+
12
-12
VDC
Serial interface
(RS-232) option
+5
VDC
All logic circuitry
+24
VDC
Daisy wheel motor, Line
feed
motor,
Ribbon magnet
and
Ribbon
drive
motor
+30
VDC
Hammer
magnet and Linear
motor
Fuse Fl provides protection of the
+12
and
-12
volt lines
to the
serial
interface.
Fuse
F2
provides protection
for
all
other voltages
in
the
printer.
Ratings for fuses
Fl and
F2
are given in
Table
7.1
on
Page
48.
-
50
-