Read Sharp AR-235 (serv.man5) Service Manual online
AR-235/275 CIRCUIT DIAGRAM - 2
C154
0.1u
BR184
10X4
1
8
2
7
3
6
4
5
R145
10k
C135
100p
C153
12p
BR139
33X4
1
8
2
7
3
6
4
5
BR149
33X4
1
8
2
7
3
6
4
5
BR151
33X4
1
8
2
7
3
6
4
5
BR141
33X4
1
8
2
7
3
6
4
5
C431
1000p
BR143
33X4
1
8
2
7
3
6
4
5
BR146
33X4
1
8
2
7
3
6
4
5
BR171
10X4
1
8
2
7
3
6
4
5
C3710.1u
R355
100J
R347
10k
BR154
33X4
1
8
2
7
3
6
4
5
BR168
10X4
1
8
2
7
3
6
4
5
BR166
10X4
1
8
2
7
3
6
4
5
R348
10k
C155
22000p
BR148
33X4
1
8
2
7
3
6
4
5
BR144
33X4
1
8
2
7
3
6
4
5
R134
33
R356
1k
BR170
10X4
1
8
2
7
3
6
4
5
R133
33
BR142
33X4
1
8
2
7
3
6
4
5
BR145
33X4
1
8
2
7
3
6
4
5
R124
33
BR172
10kX4
1
8
2
7
3
6
4
5
C410
0.1u
C382
0.1u
C407
0.1u
C426
0.1u
C391
0.1u
C408
0.1u
C406
0.1u
C384
0.1u
C385
0.1u
BR186
10kX4
1
8
2
7
3
6
4
5
BR185
10kX4
1
8
2
7
3
6
4
5
C141
0.1u
C142
12p
C140
22000p
BR177
33X4
1
8
2
7
3
6
4
5
BR176
33X4
1
8
2
7
3
6
4
5
BR175
33X4
1
8
2
7
3
6
4
5
BR174
33X4
1
8
2
7
3
6
4
5
C423
0.1u
C424
0.1u
C425
0.1u
C427
0.1u
C428
0.1u
C432
0.1u
C386
0.1u
C383
0.1u
C388
0.1u
C412
0.1u
C411
0.1u
C430
0.1u
C413
0.1u
C394
0.1u
C429
0.1u
C396
0.1u
C395
0.1u
C393
0.1u
C392
0.1u
C390
0.1u
C397
0.1u
C389
0.1u
C387
0.1u
C409
0.1u
C422
0.1u
C143
47u/16V
+
IC1
1
3
HG73C079H02FD
VCC
1
VSS
2
MEMDA0
3
MEMDA1
4
MEMDA2
6
MEMDA3
7
MEMDA4
9
MEMDA5
10
MEMDA6
11
MEMDA7
12
MEMDA15
13
MEMDA14
14
MEMDA13
15
MEMDA12
16
MEMDA1
1
17
VSS
8
MAD7
61
MAD6
62
MAD5
63
MAD4
64
MEMDB12
46
MEMDB1
1
48
MEMDB10
49
MEMDB9
50
MEMDB8
51
VCC
52
VSS
53
\CS1\
54
MAD12
55
MAD1
1
56
MAD9
58
MAD8
59
MEMDB6
40
MEMDB7
41
MEMDB15
42
MEMDB14
43
MEMDB13
45
VCC
18
MEMDA10
19
MEMDA9
20
VSS
21
MEMDA8
22
MCKE
23
\DWE\
24
\CAS\
25
\RAS\
26
\CS0\
27
BANKS0
28
BANKS1
29
DQMU
30
DQML
31
VCC
32
VSS
33
MEMDB0
34
MEMDB1
35
MEMDB2
36
MEMDB3
37
MEMDB4
38
MEMDB5
39
VSS
47
VSS
60
VCC
44
VCC
57
VCC
5
MAD10
65
MAD0
66
MAD1
67
MAD2
68
MAD3
70
\FAXCS1\
71
VSS
72
\ESCS1\
73
\FAXREQ\0
74
\FAXACK\1
75
\ESREQ0\
76
\ESACK1\
77
\PCLREQ0\
78
\HSYNC\
79
BDOUTD0
80
BDOUTD1
81
VCC
82
BDOUTD2
83
BDOUTD3
84
VSS
85
BDOUTD4
86
BDOUTD5
87
VCC
69
BDOUTD6
88
BDOUTD7
89
BDOUTD8
90
BDOUTD9
91
BDOUTD10
92
BDOUTD11
93
BDOUTD12
94
VCC
95
BDOUTD13
96
BDOUTD14
97
VSS
98
BDOUTD15
99
VSS
100
LD
101
VSS
102
APCHOLD
103
PRINTAREAEN
104
VCC
105
VSS
106
NC(ST)
107
VCC
108
NC(SW)
109
TEST2
110
VSS
111
FAXCS0
112
FA
XREQ1
113
FA
XACK0
114
FAXPRD
115
ESCS0
116
ESREQ1
117
ESACK0
118
ESPRD
119
PCLCS0
120
VCC
121
PCLACK0
122
PCLPRD
123
VSS
124
BDIN0
125
BDIN1
126
BDIN2
127
BDIN3
128
BDIN4
129
BDIN5
130
BDIN6
131
BDIN7
132
VCC
133
BDIN8
134
BDIN9
135
VSS
136
SFCLK
137
DUMC
153
PB
152
OB
151
DUMMY
150
VSS
149
VSS
148
VCC
147
VCC
146
BDIN15
145
BDIN14
144
BDIN13
143
BDIN12
142
BDIN1
1
141
BDIN10
140
SYNC
139
VSS
138
ADWR
T
168
ADSD
167
VSS
166
F1
165
VSS
164
SH
163
VSS
162
F2
161
VSS
160
REFCK
159
VSS
158
DA
TCK
157
VSS
156
FR
155
VCC
154
IDIN3
182
IDIN4
183
dmypclksw
184
VCC
185
VSS
186
CPUCLK
187
VSS
188
CPUWR
189
CPURD
190
RESET
191
PRINTST
192
IDIN2
180
IDIN6
179
IDIN1
178
IDIN7
177
IDIN0
176
VSS
175
dmypclk
174
VCC
173
VCC
172
VSS
171
ADSCLK
170
ADCK
169
IDIN5
181
VSS
200
VSS
199
VSS
198
VCC
197
TRANSST
196
RECEPTST
195
SCANSP
194
SCANST
193
CPUAD4
230
CPUAD5
229
CPUAD6
228
CPUAD7
227
VSS
226
VSS
225
VCC
224
VCC
223
VSS
222
VSS
221
CPUSYNC
220
CPUINTR
219
CPUDT0
218
CPUDT1
217
CPUDT2
216
CPUDT3
215
CPUDT4
214
VSS
213
CPUDT5
212
CPUDT6
211
VCC
210
CPUDT7
209
CPUDT8
208
CPUDT9
207
CPUDT10
206
CPUDT11
205
CPUDT12
204
CPUDT13
203
CPUDT14
202
CPUDT15
201
VCC
249
VCC
248
TEST0
247
TEST1
246
VSS
245
VCC
244
VSS
243
MFCLK
242
VSS
241
TM2
240
VSS
239
VCC
238
IFTSODEN
237
VCC
236
CPUCS
235
CPUAD0
234
CPUAD1
233
CPUAD2
232
CPUAD3
231
VCC
256
VCC
255
VCC
254
VCC
253
VSS
252
VSS
251
VCC
250
R146
10k
R346
10k
BR140
10kX4
1
8
2
7
3
6
4
5
BR138
33X4
1
8
2
7
3
6
4
5
BR119
10kX4
1
8
2
7
3
6
4
5
BR152
10kX4
1
8
2
7
3
6
4
5
BR153
10kX4
1
8
2
7
3
6
4
5
X102
SG8002JC(32MHz)
/CONT
1
OUT
3
VDD
4
GND
2
X101
SG8002JC
(56.32602MHz)
/CONT
1
OUT
3
VDD
4
GND
2
IC218C
74LVX08
9
10
8
IC218D
74L
VX08
12
13
11
C151
0.1u
IC1
18A
NC7S32M5X
1
2
4
IC1
1
7A
NC7S08M5X
1
2
4
C152
0.1u
R143
10k
BR120
10kX4
1
8
2
7
3
6
4
5
BR147
10kX4
1
8
2
7
3
6
4
5
BR121
10kX4
1
8
2
7
3
6
4
5
BR122
10kX4
1
8
2
7
3
6
4
5
BR150
33X4
1
8
2
7
3
6
4
5
BR169
10kX4
1
8
2
7
3
6
4
5
BR167
10kX4
1
8
2
7
3
6
4
5
BR173
10kX4
1
8
2
7
3
6
4
5
NF107
ZJSR5101-223
FB104
FB109
FB107
FB105
FB1
10
FB108
MEM2012T101R
NF108
ZJSR5101-223
NF106
ZJSR5101-223
R383
0J
R384
0J
R385
10k
C453
100u/6.3V
+
IC226
74VHC164
A
1
B
2
CLK
8
CLR
9
QA
3
QB
4
QC
5
QD
6
QE
10
QF
11
QG
12
QH
13
R387
0(NP)
C455
NP
C454
0.1u
CCDD1
D2
CCDD4
CCDD0
D0
D14
CCDD3
D5
D7
D6
CCDD2
D1
D9
D8
D8
CCDD7
A5
CCDD6
A3
D15
CCDD5
D12
A1
A4
A2
D4
D3
D3
D10
A6
A7
D13
D11
MEMDA6
MEMDB15
MEMDB3
MEMDB4
MEMDB8
MEMDA6
MEMDB12
MEMDA12
MEMDB0
MEMDB8
MEMDA2
MEMDA8
MEMDB9
MEMDA1
1
MEMDB12
MEMDB4
MEMDA12
MEMDB13
MEMDB15
MEMDA7
MEMDB14
MEMDA15
MEMDB0
MEMDA4
MEMDA11
MEMDB2
MEMDA10
MEMDA1
MEMDB6
MEMDB9
MEMDA3
MEMDA0
MEMDB7
MEMDA13
MEMDB2
MEMDB6
MEMDA15
MEMDB1
MEMDB10
MEMDB5
MEMDB7
MEMDA3
MEMDA0
MEMDA10
MEMDA9
MEMDB13
MEMDA7
MEMDA14
MEMDB11
MEMDB3
MEMDA2
MEMDB1
1
MEMDB1
MEMDB5
MEMDB14
MEMDA1
MEMDA5
MEMDA9
MEMDA4
MEMDA5
MEMDA14
MEMDB10
MEMDA8
MEMDA13
MAD6
MAD1
1
MAD9
MAD7
MAD0
MAD12
MAD8
MAD10
MAD3
MAD2
MAD1
MAD4
MAD5
BDOUT5
BDOUT10
BDOUT12
BDOUT11
BDOUT11
BDOUT9
BDOUT4
BDOUT8
BDOUT13
BDOUT7
BDOUT0
BDOUT3
BDOUT14
BDOUT15
BDOUT6
BDOUT1
BDOUT2
BDIN1
1
BDIN15
BDIN6
BDIN1
BDIN8
BDIN3
BDIN4
BDIN5
BDIN7
BDIN12
BDIN14
BDIN0
BDIN13
BDIN9
BDIN10
BDIN2
G3.3V
G3.3V
3.3V
3.3V
3.3V
G3.3V
G3.3V
3.3V
3.3V
G3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
G3.3V
D[15..0]
MEMDA[15..0]
MEMDB[15..0]
MCKE
/CAS
/RAS
/SDCS0
BANKS0
BANKS1
DQML
/DWE
DQMU
/SDCS1
/PB
/FAXREQ1
/RD
/ESCS0
/HSYNC
/FAXPRD
/SYNC
BDOUT[15..0]
/SH
/ESACK0
/ESPRD
/LDON
/f1
/PCLCS0
/INTR
/CPUSYNC
/DA
TCK
/F
AXACK1
/PCLREQ0
/ESREQ1
ADSCLK
/FAXCS0
/SCANSP
CPUCLK
/SAMP
/OB
/ESREQ0
/F
AXREQ0
/ESACK1
/PCLACK0
/SCANST
A[19..1]
ADSD
/VIDEO
/REFCK
/PCLPRD
/CS2
/L
WR
/f2
/FR
ADWR
T
/PRST
A
R
T
/ESREQ0
/ESACK1
/ESCS0
/PCLREQ0
/F
AXCS0
MFCLK
BDIN[15..0]
/TRANSST
/F
AXCS1
/FAXACK0
/ESCS1
MAD[12..0]
/DUMACK
/SHASIC
CCDD[7..0]
/SCANST
SHSEL
/F
AXREQ0
/F
AXCS1
/F
AXACK1
/ESCS1
/ESACK0
/ESPRD
/PCLCS0
/ESREQ1
/F
AXACK0
/F
AXREQ1
/F
AXPRD
/PCLPRD
/PCLACK0
/DUMC
/MRESET
SFCLK
/MRES
SFCLK
A
Zz
Zz
TP8
TP9
TP10
(1-3A)
(1-2A,9-3E)
(1-2A,3-1B)
(1-3D,3-1B)
(1-3D,,3-1B,8-3A)
(1-3D,3-1B,8-3A)
(1-3C)
(8-3E)
(8-2E)
(8-2D)
(8-2D)
(8-2D)
(8-2D)
(8-2D)
(8-2D)
(8-2D)
(8-2D)
(8-2D)
(8-2D)
(8-2D)
(,8-2D)
(2-1A,3-1B)
(2-1A)
(2-1A,3-1B)
(2-1A,3-1B)
(2-1A)
(2-1A)
(2-1A)
(9-4A)
(5-4E)
(5-3D)
(10-2E)
(3-1B,5-4E)
(,3-1B)
(9-3B)
(3-1B)
(2-1A)
(2-1A)
(2-1A)
(9-2B)
(2-1A)
(2-1A)
(9-3B)
(3-3B)
(10-2D)
(10-2E)
(9-3D)
(9-3D)
(9-3D)
(9-3D)
(9-3D)
(9-3D)
(9-3D)
(9-3D)
(9-3D)
(9-3D)
(9-3D)
(2-4D,3-2B)
(3-1B)
(9-4D)
(2-2E,3-2B)
(,3-2B)
(3-2B,4-3B)
(3-2B)
(1-2E,,3-1B,4-3B)
(3-2B,4-3B)
(2-3E)
(1-2E)
(2-2E)
A
A
B
B
C
C
D
D
E
E
4
4
3
3
2
2
1
1
GRAPHIC
ASIC
SECTION
2/13
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