Sharp SF-1120 - Manual (Page 122)

2. Main circuit (1) Block diagram
OR
S
LE
D
CFM
P
W
M
BL PW
B
LM
AE
DM
S
P
R
OC
ON
MM
RT
H
DC PWB
PR
PR
Q
5
PR
IC20
IC14
FE
T
1
IC21
PC
G
MC
G
IC2
IC17
LE
D
0 ,L
E
D
1 ,C
F
M
P
W
M
IC5
TM0
,TM1
TM
TM
a
,T
M
b
VFM
IC1
0
VF
M
P
W
M
MH
P
S
,L
H
P
S
AEG
0 ,A
E
G
1
L M
-A
,/L
M
-A
L M
-B
,/L
M
-B
Q8 Q2
OF
F
IC15
IC
9
PR
-O
F
F
VMF
2
AD
F
SO
R
T
ER
AD
U
D -DT
R,
A-
DT
R
,S
-DT
R
T C
,T
RC,
RRC
,P
R
,M
P
F
C
PSPS,
C
P
F C
1
,D
L ,S
F
M
,D
C
-O
F
F
A-
R
E
S
,S-
R
E
S
TX
D
,D
T
R
SE
L
SR
E
S
/R
ESET
OP
-C
L K
O
P
-L
A
T C
H
,O
P
-DA
T
A
,P
F
M
CL
K
OP
-C
L K
IC
1
0
KI
0 ,KI
1 ,K
I2
,KI3
AEG
0 ,A
E
G
1
IC3
OP
-C
L
K
OP PW
B
MH
P
S
LH
P
S
T
F
D
, MMR
E
IC2
1
IC3 IC1
8
TFD
,MMR
E
D
A
TA
1 ,D
A
TA
2 ,S
0 ,S
1
,S
2
A0
-A
1 6
RX
D GB
P
W
M
SH
V
D0
-D7
/R
D
SC
L
/C
S
1
/R
ESET
M
IR
-A,
/M
IR
-A
,M
IR
-B
,/ M
IR
-B
OP
-L
A
T C
H
SEL
A,SE
L
B ,S
EL
C
IC1
IC20
MIR PPD
IC1
8
A
D
FD
,S
O
R
TD
PP
D
SD
A
SE
L A
DA
T
A
0
AD
F D
GN
D
+ 5V
1
+
5V
2
DC PWB
+V
C
L
+2
4 V
+
V
H
DA
T
A
1
DA
T
A
2
S0 S1 S2 SEL
A
SEL
B
SEL
C
CS
2M
CS
3M
CS
4M
CP
F C 2
CP
F C 3
CP
F C 4
D
VBI
AS
T
H
V/
MH
V
SH
V
G
BPW
M
OC
S
W
MPS SW
D
S
FW
RTH
MM
PDA
MCS
VREF
BL-DATA
FWS, RTH
H3 DATA0
MMPWM
AEG0, AEG1
AES
PCG MCG
MCS
PROCON
VREF
BL-DATA
RX D
A0-A 2
D0 -D7
/R ESET
/CS2
IC
1
1
IC18 IC12
D-
T X D
IC
19
UL
N
2
00
4
ULN2
0
0
4
16 15 14 10
13
16 15 14 13 11
IC
2 2
D-
RE
S
D-
RE
S
TD
82504
A-
T X D
S -T
XD
TD
82
504
D-
T X D
A-
R X D
S-
R
X D
D-
R
XD
10 15 14 13 11 12
IC
16
ULN20
04
11 12
IC9
IC
19
5 6 7 2 3 4
CS
2M
CS
3M
CS
4M
CP
F C
2
CP
F C
3
CP
F C
4
DV
B IA
S
TH
V /M
H
V
A-
DS
R
S-
D
S R
IC
15
10 12 2 13 1 14 12
ULN2004
UL
N
2
00
4
LS
15
1
A-
T XD
S-
T XD
SE
L B
SE
L C
SO
R T D
5 6 8 7 11 10 9 8
3
15
DF
M
Q9
I/O CP
U
IC13
EEPRO
M
RO
M
15
9
10
11
TC TR
C
RR
C
MPF
C
PS
PS
CP
F
C
1
DL SF
M
8
7
6
5
4
3
2
1
A B C D
1
2
3
4
5
6
7
8
D C B A
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