Read Sharp AR-235 (serv.man5) Service Manual online
AR-235/275 CIRCUIT DIAGRAM - 26
D12
D13
D14
D15
D9
D10
D11
D8
4
5
6
9
10
8
12
13
11
D0
3
D1
4
D2
7
D3
8
D4
13
D5
14
D6
17
D7
18
OC
1
CLK
11
Q0
2
Q1
5
Q2
6
Q3
9
Q4
12
Q5
15
Q6
16
Q7
19
12
NC
1
V5
2
V4
3
V3
4
V2
5
V1
6
Vin+
8
Vin-
9
C3+
10
C3-
11
C2+
12
C2-
13
C1+
14
C1-
15
OSC3
17
OSC2
18
OSC1
19
3/5
20
TEST2
21
TEST1
22
SYNC
23
BUSY/
24
SCR
25
RESET/
26
D7
27
D6
28
D5
29
D4
30
D3
31
D2
32
D1
33
D0
34
WS
35
WR/
36
RD/
37
RS
38
CS/
39
NC
42
12
VIN
3
VOUT
1
GND
2
X2
CSTCC4.19MHz
C37
NP(7p)
C38
NP(7p)
R43
10k
R41
24KF
C36
NP
C34
NP
C41
NP
C42
NP
R44
10k
C28
NP
ZD5
7.5C
RT1
5G2M40B333J
t
C39
0.1u
IC3B
74LCX32
IC3C
74LCX32
IC3D
74LCX32
R42
15KF
C32
NP
R38
1.3KF
R39
1.3KF
C29
NP
C31
NP
C30
NP
R40
43KF
C33
NP
R36
1.3KF
R37
4.7KF
R35
1.3KF
C35
NP
IC5
74LCX374
C40
0.1u
D12
1SS133
R100
1.5k(1W)(NP)
IC4
UPD16435
C26
4.7u/35V
R99
R(NP)
C27
NP
R34
4.7k(1/4W)
C66
4.7u/35V(NP)
C25
0.1u
C65
0.1u(NP)
D11
1SS133
ZD4
6.8B
IC17
178M15T(NP)
VDD
VDD
+24V
VDD
VDD
VCC
/WR
RS
/BUSY
LCDCONT
/LCDRES
D[15..8]
/CS3
/HWR
A
A
B
B
C
C
D
D
E
E
4
4
3
3
2
2
1
1
LCD BACK LIGHT PWB
2/4
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