R-743 (serv.man2). Diagrams - Sharp Home Appliance Service Manual (repair manual). Page 2

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15
743M -
Figure S-2. Control Panel Circuit
WIRING DIAGRAM
+
—
A 3
I-1
IZA918DR
LIQUID CRYSTAL DISPLAY
Q1
DTA143ES
Q24
DTA143ES
Q2
DTA123ES
Q40
DTA143ES
AC230-240V
50Hz
OVEN LAMP
FAN MOTOR
TURNTABLE
MOTOR
HEATER
MICRO  
Q22
DTB143ES
Q21
DTB143ES
C20
10 /50v
C21
0.1 /50v
CF1
CST4.00MGW
R1
510 1w 
R2
510 1w 
GND
VC
C3
0.1 /50v
Q20
2SB1238
Q3
2SB1238
Q23
DTD143ES
R22
91 1/2w
R20 1k
D23
DOOR SWITCH
NOTE
: IF NOT SPECIFIED,  1/4w – 5%
D30
D21
D20
C1 0.1
/50v
C2 1000
/35v
C6 10
/50v
C7 0.1
/50v
C12 0.1
/50v
C5
R21 4.7k
VRS1
10G471K
R3 4.7k
R60 4.7k
R53
4.7k
CR61
CR62
CR63
CR64
R10
1M
C11
0.1
/
50v
R5  240
R40 3.3k
R4 4.7k
ZD1
HZ5C-2
ZD20
HZ20-1
ZD2
HZ4A2
C4
D22
C30
R31
4.7k
RY1
a
b
(J1)
c
d
D2
D4
LD4 LD3 LD2 LD1
D1
D3
WH-1
WH-2
SP1
1
4
6
8
T1
RY2
R30 15k
SW60
START
AUTO
MINUTE
STOP/
CLEAR
AUTO COOK/
DEFROST
MICRO GRILL
DUAL
SW61
SW63
SW62 
SW64
10min
WH-3
1min
10sec
SW65
SW66 
(C50)
(C51)
RY3
A 5
NO
COM
B 1
B 2
A 1
+
—
+
—
+
—
NO
COM
J3
C60 0.1 /50v
J5
J7
J9
J2
J4
J6
J8
S12
C3
C2
C1 
S11
S10
S9
S8
S7
S6
S5
S4
S3
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
VC3
17
18
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
19
20
21
22
23
24
25
26
27
28
29
30
31
32
XRESET
XTEST
NC
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
COM3
COM2
VSS
OSC1
OSC2
VD1
VDD
AVDD
AVREF
AVSS
NC
NC
R40
R41
R42
R43
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
BZ
NC
COM1
COM0 
K03
K02
INT1
INT0
P23
P22
P21
P20
R03
R02
R01
R00
VC2
VC1
NC
NC
NC
NC
NC
NC
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
S2
S1
: IF NOT SPECIFIED,  1SS270A
: IF NOT SPECIFIED,  0.01  / 16v
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