Sharp AR-M208, Service Manual, Page: 166 / 180

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