Read Sharp AR-235 (serv.man5) Service Manual online
AR-235/275 CIRCUIT DIAGRAM - 1
X100
A
T
-51(19.6608MHz)
C346
22000p
C347
22000p
C345
22000p
R129
1k
R130
1k
R131
1k
R132
33
R330
NP
R135
1k
R139
1k
R140
NP
C367
0.1u
C369
0.1u
C370
0.1u
C366
0.1u
C368
0.1u
C127
10u16V
+
R327
BR127
10kX4
BR135
10kX4
BR155
10kX4
BR123
10kX4
BR136
10kX4
BR137
10kX4
BR157
10kX4
BR163
33X4
BR162
33X4
BR161
33X4
BR160
33X4
BR159
33X4
BR156
10kX4
BR129
10kX4
BR130
10kX4
BR128
10kX4
BR158
33X4
BR131
33X4
BR132
33X4
BR133
33X4
R138
1k
C349
NP
BR125
10kX4
BR134
10kX4
BR126
10kX4
C351
R329
C350
C348
NP
R328
IC105
CA
T24WC16P
R325
33
R326
33
BR124
10kX4
C324
0.1u
R118
11kF
R119
10kF
C129
0.1u
C128
1u
R117
C126
R116
IC216
FS781
C125
R142
10k
C380
47p
IC217
M51957BFP
R141
1k
R123
10k
C131
0.1u
IC109
M51953BL
C130
1u
NC1
JUMPER(NP)
R127
10k
R125
10k
R126
10k
IC218A
74L
VX08
IC218B
74L
VX08
IC110
HD6412320F(H8S2320)
C136
22000p
C137
22000p
BR164
0X4
BR165
10kX4
R122
10k
R115
10k
C133
0.1u
C134
0.1u
C139
0.1u
C138
0.1uF
R121
10kJ
NF105
ZJSR5101-223
R381 0J
R382
0J
CPU3.3V
CPU3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
5V
3.3V
3.3V
D[15..0]
DEVID
LW
R
HWR
RD
A[19..1]
PMCLK
BPWM
R
YBY
MIRCNT
CPUSYNC
FW#
LOOPINT
SPFP
APER#
OCCO
VER
MHP
INTR
RIC
DREQ1
POFFR
SVCMD#
PW
OFF
CTS#
DSR#
R
TS#
DTR#
LOOPINT
SPEEDSEL
READ
Y
DEVCLK
T
ONER#
HPWS
THOPEN
ER
TH
SFTCNT
SPFCNT
RESET
SVSTS#
DEVIDDIR
RT
H
MRESET
FINSTS
FINCMD
FINCRD
Y
FINSRD
Y
HTEMP
DUMA
CK
SH
DHR
OFF
DREQ0
RESET
CPUCLK
CS2
CS0
CS3
CS1
TCD
A
TF
AN
PSF
AN
MRES
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
A0
1
A1
2
A2
3
SCL
6
WC
7
SD
A
5
1
8
2
7
3
6
4
5
Xin
1
Xout
2
S1
3
LF
4
VSS
5
FSOUT
6
S0
7
VDD
8
NC
8
GND
4
VCC
7
NC
1
IN
2
NC
3
Cd
5
OUT
6
OUT
5
Cd
4
NC
2
1
2
3
4
5
6
P17
115
TIOCA2
116
TCLKC
117
TIOCA1
118
TCLKB
119
TCLKA
120
DA
CK1
121
DA
CK0
122
P27
72
P26
73
P25
74
P24
75
P23
76
P22
77
P21
78
P20
79
LW
R
93
P50
97
TXD0
59
D8
49
P51
98
P52
101
P53
102
PF2
94
TEND1
71
IRQ3
33
D0
40
PF1
95
A16
24
TXD1
60
Vref
104
PF0
96
A8
15
D1
41
RXD0
61
AN0
105
FA
I
88
AS
90
RD
91
HWR
92
RXD1
62
D2
42
D9
50
D3
43
WDT
O
V
F
80
RES
81
NMI
82
STBY
83
XT
AL
85
EXT
AL
86
IRQ2
34
P34
63
DREQ0
66
TEND0
69
DREQ1
70
D4
45
IRQ5
30
D5
46
D10
51
AN1
106
D6
47
P35
64
D7
48
P42
107
D11
52
A17
25
IRQ6
31
A9
16
D12
54
P43
108
D13
55
A12
20
D14
56
A4
11
D15
57
IRQ1
37
IRQ7
32
A13
21
P45
110
A18
26
A5
12
A14
22
A6
13
A0
6
A10
17
A1
7
CS1
1
P46
111
A2
8
CS0
2
A7
14
P47
112
A3
9
A15
23
A11
18
IRQ0
38
A19
27
MD0
123
MD1
124
MD2
125
PG0
126
CS3
127
CS2
128
A20
29
AVss
113
P44
109
AVcc
103
1
8
2
7
3
6
4
5
1
8
2
7
3
6
4
5
SCL
SD
A
D1
D3
D4
D9
D0
D11
D15
D13
D8
D12
D10
D5
D2
D6
D14
D7
A6
A12
A11
A16
A15
A5
A14
A8
A3
A10
A7
A19
A9
A1
A17
A2
A13
A4
A18
D0
D11
D8
D14
D12
D1
D4
D10
D13
D5
D2
D15
D9
D3
D7
D6
D6
(N.C
.)
R116
IC216
Mount
Not Mount
R117
R328
R329
R327
C351
C350
C125
C126
NP
NP
NP
NP
NP
NP
NP
6pF
6pF
15pF
15pF
10000pF
0.1uF
3.3k
0J
22J
680J
0J
(1-2E)
(1-4A)
(7-3A)
(3-1C)
(7-1D)
(3-1C)
(3-1C)
(7-4D)
(7-4A)
(8-2D)
(3-1B)
(2-3C)
(8-4A)
(8-4A)
(2-3E,9-3E)
(2-4C)
(12-3B)
(12-3B)
(4-4E)
(2-4C
,3-1B)
(4-1B)
(1-3D)
(1-2A)
(11-1D)
(4-4A)
(11-1D)
(4-2D)
(11-1D)
(3-1C)
(3-1C)
(7-1D)
(4-2D)
(4-2D)
(4-2C)
(4-4A)
(4-4A)
(7-4D)
(2-3D
,3-1B)
(2-3D
,3-1B
,8-3A)
(,3-1B
,8-3A)
(2-3D
,3-1B
,8-3A)
(7-1D)
(2-1D)
(4-1C)
(9-4C)
(4-4A)
(4-1C)
(5-2B)
(5-4B)
(11-3B)
(5-1B)
(5-1E)
(11-1D)
(5-2B)
(5-2C)
(2-3D
,3-1B
,4-3B)
(2-3E)
[3
] C
IR
C
U
IT
D
IA
G
R
A
M
1
.
M
C
U
P
W
B
CPU
SECTIO
N
A
A
B
B
C
C
D
D
E
E
4
4
3
3
2
2
1
1
1/13
Click on the first or last page to see other AR-235 (serv.man5) service manuals if exist.