Power Unit Circuit - Sharp R-390B Service Manual

R-390B
1
A
A 3
B
AC230-240V
50Hz
C
D
TURNTABLE
MOTOR
OVEN LAMP
A 1
FAN
MOTOR
N.O.
MICRO
COM
E
F
G
NOTE
H
1
2
3
T1
1 3
D3
d
2 4
a b
c
RY1
RY2
: IF NOT SPECIFIED, 1/4w
: IF NOT SPECIFIED, 1SS270A
Figure S-2. Power unit Circuit
2
3
4
D1-D4
11ES1
D1
+
D4
D2
–
2SB1238
R2
82
1w
Q2
2SB1238
D7
R4 1.3k
D8
Q3 DTD143ES
+
C6 10 /35v
–
5%
4
28
6
5
C 9
C 8
+
C 7
–
Q1
–
+
R6
C 2
82
1w
SP1
C 1
R5 3.3k
C 3
C 6
C10
C 4
C 5
C11
B 1
B 2
5 6
A
B
C
D
E
F
G
H