Power Unit Circuit - Sharp R-305BW Service Manual

1
A
B
A 1
AC
A 2
C
a
D
N.O.
TURNTABLE
MOTOR
OVEN LAMP
COM
FAN
MOTOR
E
N.O.
MICRO
AC
COM
F
G
NOTE
H
1
2
3
D1-D4
T1
11ES1
1 4
D3
d
D4
3 6
b
V
R
c
RY1
D7
RY2
D8
: IF NOT SPECIFIED, 1/4w ± 5%
: IF NOT SPECIFIED, 1SS270A
Figure S-2. Power Unit Circuit
2
3
4
LD1 LD2 LD3 LD4 LD5
LD1-LD5
R4 27
Q2 2SB1238
R5 4.7k
D5 D6
D1
+
D2
–
R2
820 1/2w
Q3 DTD143ES
+
C5
10µ/35v
–
4
29
6
5
WH-1
V
R
C 1
C 2
+
C 3
–
R3
820 1/2w
C 4
SP1
C 5
R6 3.3k
C 6
C 7
C 8
C 9
SH-B
B 1
DOOR
SWITCH
B 2
SH-A
5 6
R-305BW
R-309BW
A
B
C
D
E
F
G
H