Power Unitl Circuit - Sharp R-90GCH Service Manual

High speed convection microwave oven
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1
A
T1
A-2
A-1
A-4
B
A-3
A-6
A-8
D-1
AC230V
C
/50Hz
D-9
D-7
D-5
TURN
OVER
D-3
FAN
E-5
MOTOR
D
DAMPER
E-3
MOTOR
CONVECTION
E-1
MOTOR
NO
OVEN LAMP
COM
E
TURNTABLE
MOTOR
NO
HIGH VOLTAGE
TRANSFORMER
COM
SIDE
+
C-4
F
HEATING
SSR
C-3
-
ELEMENT
+
C-2
TOP
SSR
HEATING
-
C-1
ELEMENT
B-2
DOOR
SENSING
B-1
SWITCH
B-4
DAMPER
SWITCH
B-3
G
B-6
THER-
MISTOR
B-5
H
1
2
3
D1-D4 1N4002L x4
D3
D1
D2
D4
RY6
RY5
RY4
RY3
(J1)
150 1/2W
RY1
RY2
Q3
2SB1238
ZD6
HZ20-1
R7
1.5K 1/4W
C50
0.01u/50V
C51
0.01u/50V
Figure S-2. Power Unitl Circuit
2
3
4
R6
6.8 1W
+
D5
-
+
-
Q2
C
O
DTA143ES
R5 300
I
1W
Q5
KIA79L05P
R11
1.5K 1/4W
Q19
DTD143ES
+
-
D20
D21
1N5817
D16
D17
D18
<NOTE>
: IF NOT SPECIFIED 1SS133
4
41
5
6
G-3
VN
G-4
VF
G-5
VEE
VC
H-6
G-1
VS
H-13
INT
H-7
BZ
TURN
H-2
OVER
FAN
H-5
MOTOR
DAMPER
H-4
MOTOR
H-3
CONVECTION
MOTOR
COM
H-1
WATCH
G-2
H-12
DOOR (B)
H-11
DOOR (A)
DAMPER
G-6
SWITCH
THER-
G-7
R16
MISTOR
3.3K 1/4W
H-8
HIGH VOLTAGE
TRANSFORMER
R17
SIDE
3.3K 1/4W
HEATING
H-9
ELEMENT
R18
TOP
3.3K 1/4W
H-10
HEATING
ELEMENT
5
6
R-90GCH
A
B
C
D
E
F
G
H

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