Sharp R-3A88, Service Manual

Page: 29 / 36

27
R-3A88
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. Contrl Panel Circuit
+
-
+
-
+
-
+
-
54
3
2
1
09
8
7
6
A3 A5 A1
COM
NO
B2 B1
AC220V 50Hz FAN MOTOR TURNTABLE MOTOR OVEN LAMP
POWER TRANSFORMER
DOOR SWITCH
T1
VRS1
(J1)
a
b
c
d
1
2
5 6 3 4
D2
D1 S1NB10
R10 47K
R11 56K
D20 D21
RY1 RY2
(J2)
Q21 KRC243M Q22 DTA143ES
D22
(J5) (J3)
(J4) (J6)
R6 12 1/2W
R31 4.7K
C30
R30 15K
D30
C1 0.1
µ
/50V
C2 330
µ
/35V
C20 0.1
µ
/50V
C21
10
µ
/35V
Q20 KRA101M
C10
0.01
µ
/25V
R7 150
R2 820 1/2W
R3 820 1/2W
R41 3.3K
SP40
(D)
VC
VC
C3 47
µ
/16V
C4
C6 47
µ
/16V
+
-
C7 0.1
µ
/50V
R5
4.7K
C5
Q1 2SA933
R4
1K
ZD2
HZ4C3
R60
1M
CF1 4MHz
(A) (B) (C)
R74 100K
R73 100K
R75 100K
R72 4.7K
R71 4.7K
R70 4.7K
(A)
(B)
(C)
Q72
Q71
Q70
R51 15K R52 15K R53 15K R54 15K
R50 150K x 4
C50 330p x 4
Q70~Q72 2SA933
(D)
R40 1K
D50
G12 G11 G10
G 9
G 8
G
7
G
6
G
5
G
4
G
3
G
2
G
1
D51
D52
D53
D54
D56
KEY UNIT
CONTROL UNIT
1 5 10 15 20 21
42 30 22 25 35 40
IC1 IZA683DR
Vdsp
R00 R01 R02 R03
TEST
RST
OSC1 OSC2
GND
AVSS
AN0 AN1 AN2 R33 R40 R41 R42 R43
AVCC
VCC
R22 R21 R20 R13
D8 D7 D6 D5 D4
BUZZ
D2
INT
STEAM MENU
AUTO START
Tom Yum Kung
EASY DEFROST
POWER LEVEL
R23 R12 R11 R10 R83 R82 R81 R80
D1
F
1
F
1
P
1
P
2
P
3
P
4
P
5
P
6
1
G
P
8
P
9
P
10
P
11
P
12
P
14
P
15
F
2
F
2
P
7
2
G
3
G
4
G
5
G
6
G
7
G
FLUORESCENT DISPLAY TUBE
COOK
KG
DEF
HELP
Note :
IF NOT SPECIFIED, 1/4W
±
5%
IF NOT SPECIFIED, 1SS270A IF NOT SPECIFIED, 0.01
µ
F/16V
1
28
P
13
J27 150
J35 510
D55
RICE COOK
REHEAT
HELP
SLOW COOK
STOP/CLEAR
Sukiyaki
INSTANT
COOK
START
Mini pizza