Service manual

34
R-370EK
R-370ES
6
45
1
2
3
6
45
1
2
3
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
Figure S-2. Power Unit Circuit
N.O
COM
N.O
COM
B-1
F-2 F-3
C 1
C 2
C 3
C 4
C 6
C 5
C 7
C 9
C 8
+
–
+
–
+
–
F-1
B-2
T1
AC(N)
GND
VA
INT
BUZZER
MICRO
AHR
AHA
DOOR
SENSING
SWITCH
OVEN LAMP
TURNTABLE
MOTOR
FAN MOTOR
OVEN LAMP
TURNTABLE
MOTOR
FAN MOTOR
AC(H)
MICRO
DOOR
SENSING
SWITCH
NOTE
: IF NOT SPECIFIED, 1/4W, 5%
CN-B
CN-C
CN-F
D1-D4
1N4002
RY1
RY2
D20 1SS270A
D40 1SS270A
Q1
2SB1238
C21
10µ/35v
SP1
PKM22EPT
Q21
DTD143ES
Q22
DTA143ES
R2 330 1w
R53 1.8kF 1/4w R54 360kF 1/4w
IC2
BA4558
5
8
7
4
6
R50 330 1w
3
ab
c
d
7
D3
D4
D2
D1
14
C1 0.1µ/50v
C50 0.1µ/50v
C2 1000µ/35v
C3 10µ/35v
C51 0.1µ/50v
ZD1 HZ16-1
VRS1 10G471K
(J1)
D21 1SS270A
D22 1SS270A
R1 2.4k
R4 3.3k
R52 3.57kD 1/4w
R51 3.32kD 1/4w