Sharp R-4S1FH Service Manual - Page 33

Lsi Unit

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1 A B C D E 2 3 4 5 R-4S1FH 6 A B C D E NOTE : IF NOT SPECIFIED, 1/4W ± 5% T1 24 D1-D4 1N4002 D3 D1 LD1 LD2 LD3 LD4 WH-1 WH-1 WH-1 WH-1 10G471K VRS1 (J10) (J12) (J14) (J16) d1 3 D4 D2 a b + + - - C1 0.1µ/50v C2 1000µ/25v (J11) (J13) (J15) (J17) (J1) c R1 560 1/2W SP1 AC N.O OVEN LAMP TURNTABLE MOTOR FAN MOTOR COM AC(H) MICRO N.O COM B2 B1 DOOR SENSING SWITCH RY1 RY2 D20 1SS270A D40 1SS270A D22 1SS270A D21 1SS270A -+ C21 10µ/35v Q21 KRC243M C3 220µ/10v ZD1 HZ4C3 F F G G NC NC 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 28 27 24 29 26 23 30 25 22 31 24 21 32 23 20 33 22 19 34 21 18 35 20 17 36 19 16 37 18 15 LSI UNIT 38 17 NC 39 16 NC 40 15 NC 41 14 14 42 13 13 43 12 12 44 11 11 45 10 10 46 9 9 47 8 8 48 7 7 49 6 6 50 5 5 51 4 4 52 3 3 53 2 2 54 1 1 NC NC H 1 KEY UNIT 2 LIQUID CRYSTAL DISPLAY H 6 Figure S-2. Power Unit Circuit 3 4 5 31

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31
R-4S1FH
6
4
5
1
2
3
6
4
5
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
1
54
2
53
3
52
4
51
5
50
6
49
7
48
8
47
9
46
10
45
11
44
12
43
13
42
14
1
NC
NC
2
3
4
5
6
7
8
9
10
11
12
13
14
NC
NC
NC
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
NC
NC
41
15
40
16
39
17
38
18
37
19
36
20
35
21
34
22
33
23
32
24
31
25
30
26
29
27
28
B1
COM
N.O
COM
B2
N.O
VRS1
(J1)
10G471K
C1 0.1μ/50v
C2 1000μ/25v
C21 10μ/35v
AC
OVEN LAMP
TURNTABLE
MOTOR
FAN MOTOR
AC(H)
MICRO
DOOR
SENSING
SWITCH
C3 220μ/10v
ZD1 HZ4C3
(J11)
D21
1SS270A
SP1
KEY UNIT
LSI UNIT
D22
1SS270A
(J10)
a
c
RY1
RY2
D20 1SS270A
D40 1SS270A
d
1
3
D3
D4
D1
LD1
LD4
LD3
LD2
D2
R1 560 1/2W
Q21
KRC243M
2
4
T1
D1-D4
1N4002
NOTE
: IF NOT SPECIFIED, 1/4W ± 5%
WH-1
WH-1
+
–
+
–
+
–
(J13)
(J12)
(J15)
(J14)
(J17)
(J16)
b
WH-1
WH-1
LIQUID CRYSTAL DISPLAY