Read Sharp R-891M Service Manual online
19
891M -
WIRING DIAGRAM
Figure S-4. Display Unit Circuit
+
–
+
–
F11
GND
VA
INT
BACK
LIGHT
OVEN
THERMISTOR
CONVECTION
MOTOR
FAN
MOTOR
BOTTOM
HEATER
OVEN LAMP
TURNTABLE
MOTOR
HIGH
VOLTAGE
TRANSFORMER
DOOR
N.C
UPPER
HEATER
BUZZER
(EN.)
BUZZER
F10
F 9
F12
F13
F 8
F 7
F 6
F 2
F 1
F 3
F 5
F15
F 4
F14
Q12
KRA101S
Q26
KRA101S
Q25
KRA101S
Q24
DTA123JKA
Q42
KRA101S
D20
1SS181
Q20
KRA101S
Q22
DTA123JKA
Q23
DTA123JKA
Q160
KRA101S
CHECKER
Q40
KRA101S
Q41
KRC101S
Q1
2SB1238
Q140
KRA101S
Q141
2SA1036K
IC4
NJM062M
IC5
M51953A
IC3
CAT24C01J
CF1
CSTCS12.00MT
C14 0.1
µ
/50v
C17 0.1
µ
/50v
C10 0.01
µ
/50v
C11 47
µ
/16v
VCC
V 0
C D
N C
1
4
8
5
N C
N C
VSS
N C
C18 0.1
µ
/25v
C16 0.1
µ
/25v
C12 0.01
µ
/50v
C135
0.1
µ
/25v
C130
0.1
µ
/25v
C30
0.01
µ
/50v
C60
0.01
µ
/50v
C100 0.01
µ
/50v
SDA
5
8
4
1
SCL
TEST
OE1
1
16
17
32
A16
A15
A12
AN1
A11
A10
A 9
A 8
VSS
A 7
A 6
A 5
A 4
A 3
A 2
A 1
A 0
VCC
D15
D14
D13
D12
D11
D10
AN0
PA6
A20
VCC
TIOCA3
TIOCO3
TIOCA4
PB3
PB4
PB5
PB6
PB7
RES0
VSS
P90
P91
P92
P93
P94
P95
P40
P41
P42
P43
VSS
P44
D 5
G 9
G 8
G 7
G 6
G 5
G 4
G 3
G 2
G 1
D 6
D 7
D 8
D 9
VREF
AVCC
MD2
MD1
MD0
P66
HWR
R D
P63
VCC
XTAL
EXTAL
VSS
NM1
RES
STBY
Ø
P62
P61
WAIT
VSS
A19
A18
A17
A16
A15
A14
A13
A12
81
80
1
30
51
100
50
31
AN2
AN3
AN4
AN5
AN6
DA1
AVSS
IRQ0
IRQ1
PB2
CS1
CS0
VSS
PA0
PA1
PA2
PA3
PA4
PA5
A 7
A 6
A 5
A 4
A 3
A 2
A 1
A 0
D 0
D 1
D 2
GND
VCC
VEF2
V6R
VMIL3
VMIL2
VMH2
VMH3
V1R
VCC4
VCC3
D80
D81
D82
D83
D84
D85
D86
D87
R D
W R
R S
C S
M
FLM
CL1
C 0
M7S
RESET
TEST2
TEST1
GND3
GND2
GND1
OSC2
OSC1
VCC2
VCC1
V10
VMH1
V 3
V 4
VML1
V6L
VEE1
1
43
A18
A17
A14
A13
A 8
A 9
A11
O E
A10
C E
D 7
D 6
D 5
D 4
D 3
VCC
VSS
A 2
A 1
A 0
C123 0.1
µ
/25v
C120
0.1
µ
/25v
C101 10
µ
/35v
C20
0.1
µ
/25v
C22 0.01
µ
/50v
C23 0.01
µ
/50v
C15
0.1
µ
/25v
(J19)
(J18)
4.7k
C50
0.01
µ
/50v
C131
0.1
µ
/25v
C132
0.1
µ
/25v
C133
0.1
µ
/25v
C134
0.1
µ
/25v
R12 4.7k
R30 4.7k
R50 300kF
R60 1.5kF
HD66108
LCD (100 x 65 DOT)
(A057DR)
R137 18kF
IC2 IZA DR
LH5347
IC1 IZA DR
HD6433040A00FP
R136 3.6kF
R130
2k
R131
2k
R132
2k
R133
6.2k
R134
2k
R135
2k
R142 4.7k
R141
2.2k
LD1
LD2
LD3
LD4
LD5
LD6
R140
750
1/4w
(J11) 4.7k
(J10)
(J12)
(J14)
(J16)
(J13) 4.7k
(J15) 4.7k
(J17) 4.7k
TH1
5G39B332J
LD1-LD6
PG1101-350TR
LMP2
LMP1
R10 4.7k
ZD10
HZM5.6NB2
R11 470 1/2w
R31 15k
R80 100k
R100 4.7k
R120 4.7k
R103 150 1/2w
NOTE
: IF NOT SPECIFIED, 1/16w
±
5%
R101 4.7k
R81 100k
R82 100k
R83 100k
R84 15k
R85 15k
SELECT2
SELECT3
SELECT1
(TOP)
SELECT4
(BOTTOM)
BOOKMARK
(FORWARD)
BOOKMARK
(BACK)
R71 15k
SW21
SW19
SW18
SW17
SW16
SW20
R102 47k
R160 4.7k
C110
0.01
µ
/50v
C122
0.1
µ
/25v
C121 0.1
µ
/25v
R110
4.7k
R72 15k
R73 15k
R74 15k
R75 15k
R76 15k
R77 15k
R78 15k
R79 15k
R51 360F
R61 15k
R53 15k
R52 12kF
C13 0.01
µ
/50v
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