Service manual

R-204(W)
27
1
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
23456
123456
Figure S-2. Control Unit Circuit
A 3
C1 470µ/35v
D22D21
R40 3.3k
R10 1k 1/2w
C2 0.1µ/50v
C21
10µ/35v
SP1
ZD1 HZ6A3
ZD2 HZ4A2
R3 4.7k
R20 4.7k
R8
6.8kF
R11 4.7k
IC-1
C61
C60
R61 10kR62 4.7k
R63 4.7k R60 10k
1
2
3
VR1 10kB
C10 0.1µ/50v
VRS1
(J1)
10G471K
T1
D1-D4 1N4005E
D1
D3
D4
R2 2k 1/2w
AC AC AC230V 50Hz HIGH VOLTAGE TRANSFORMER OVEN LAMP FAN MOTOR TURNTABLE MOTOR 2ND. INTERLOCK RELAY CONTROL SWITCH
CN-A CN-B
: IF NOT SPECIFIED, 1SS270A : IF NOT SPECIFIED, 1/10W ± 5% : IF NOT SPECIFIED, 0.01µF/ 50V
R1 100 2w
Q1 KTA1274
C4 47µ/16v
VC
C5 0.1µ/50v
CNVSS
RESET
P21
INT
DOOR
BZ
P20
D5 D4 D3 D2
XOUT
D3
XIN
D4
VSS
D5
VDD AIN2
AIN3
P00 P01 P02 P03 P10 P11
CNTR
INT
D0 D1
P20
C20 0.1µ/50v
C6
0.1µ/50v
R5 4.7k
R31 15k
R50 150 1/4w R51 150 1/4w R52 150 1/4w R53 150 1/4w R54 150 1/4w R55 150 1/4w
LD5 LD11 LD17
LD23
LD4 LD10 LD16
LD22
LD3 LD9 LD15
LD21
LD2 LD8 LD14
LD20
LD1 LD7 LD13
LD19
LD6 LD12 LD18
LD24
R32 4.7k
C8
C3
C11
33pFCH/50v
C30
124 12 13
Q40 KRA101M
Q22 KRA101M
Q20 KRA101M
Q21 KRC243M
ZD3 HZ12A3
Q24 KTA1274
Q2 KRA117M
Q10 KRA101M
Q53 KRA222M
Q52 KRA222M
Q51 KRA222M
Q50 KRA222M
R30 15k
SW1
C31
A B
C
D2
b
a
c
RY2 RY1
D20 D30
d
3
14
6
COM
N O
A 1 B 1
NOTE
B 2
+
–
+
–
+
–