Samsung WF-R1061/YLP, Service Manual

Page: 55 / 70

52
12-2.AC INPUT & POWER CIRCUIT
Fu
nc
tion
Generates
a
required
D
C
p
o
wer
of
1
2
V
or
5V
in
case
of
supplied
or
disconnected
AC
power.
Descri
ption
-
W
h
e
n
A
C
2
20
V
is
a
pp
lie
d
to
D
18
~D2
1
it
to
DC
300V
-
W
he
n
D
C
3
00
V
IS
a
pp
lied
to
IC3
LV
T1t
to
dC
1
2V.
a
n
d
d
c
8
v
-
T
h
e
8v
is
transformed
to
D
C
5
V
thro
ug
h
IC4
(KA7
80
5).