AR-250 (serv.man3). AR250 286 336-Circuit Diagrams - Sharp Copying Equipment Service Manual (repair manual). Page 14

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ICU PWB (MEMORY_G/A) (AR-250)
9/14
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
D
C
B
A
D
C
B
A
C184
223Z
C20
104Z**
R168
0J
C23
104Z**
C24
104Z**
C183
223Z
BR19
10K
BR18
10K
BR17
10K
BR16
10K
C169
223Z
C151
223Z
C170
223Z
C173
223Z
IC19
MEMORY G/A
GND
11
6
SMC
10
BRQ0
11
7
GND
1
BRQ1
11
8
SCK
11
BRQ2
11
9
GND
2
BRQ3
120
SIN
12
BRQ4
121
FRAME
3
BRQ5
122
IRDY
4
BRQ6
123
TRDY
5
BRQ7
124
CBE0
6
BRQ8
125
CBE1
7
BRQ9
126
GND
8
BRQ10
127
CBE2
9
BRQ1
1
128
AMC
13
PD00
129
SOT
14
PD01
130
CBE3
15
PD10
131
GND
16
PD1
1
132
IAD0
17
GND
133
IAD1
18
GND
134
VDD
19
GND
20
IAD2
21
IAD3
22
GND
23
IAD4
24
IAD5
25
VDD
26
GND
27
IAD6
28
IAD7
29
VDD
30
GND
31
IAD8
32
IAD9
33
GND
34
IAD10
35
IAD11
36
VDD
37
VDD
38
GND
39
GND
40
IAD12
41
IAD13
42
GND
43
IAD14
44
IAD15
45
VDD
46
GND
47
IAD16
48
IAD17
49
VDD
50
GND
51
IAD18
52
IAD19
53
GND
54
IAD20
55
IAD21
56
VDD
57
GND
58
IAD22
59
IAD23
60
GND
61
IAD24
62
IAD25
63
VDD
64
GND
65
IAD26
66
IAD27
67
VDD
68
GND
69
IAD28
70
IAD29
71
GND
72
IAD30
73
IAD31
74
GND
75
GND
76
VDD
77
VDD
78
NC
79
CK66IN0
80
CK66IN1
81
CK33IN
82
GND
83
CK66OUT
84
CK33OUT0
85
CK33OUT1
86
GND
87
CK33OUT2
88
CK33OUT3
89
CK33OUT4
90
GND
91
CK33OUT5
92
CK33OUT6
93
CK33OUT7
94
GND
95
GND
96
CK33OUT8
97
CK33OUT9
98
CK33OUT10
99
CK33OUT1
1
100
BGNT0
101
BGNT1
102
BGNT2
103
BGNT3
104
BGNT4
105
BGNT5
106
BGNT6
107
BGNT7
108
BGNT8
109
BGNT9
11
0
BGNT10
111
BGNT1
1
11
2
VDD
11
3
VDD
11
4
GND
11
5
PD20
135
PD21
136
PD30
137
PD31
138
ABTL
TS
139
RESET
140
TRESET
141
TEST0
142
TEST1
143
TEST2
144
REFGNT
145
REFREQ
146
MA000
147
MA100
148
MA200
149
MA300
150
VDD
151
VDD
152
GND
153
GND
154
MA001
155
MA101
156
MA201
157
MA301
158
RAS00
159
RAS10
160
RAS20
161
RAS30
162
MA002
163
MA102
164
MA202
165
MA302
166
RAS01
167
RAS11
168
RAS21
169
RAS31
170
VDD
171
GND
172
MA003
173
MA103
174
MA203
175
MA303
176
RAS02
177
RAS12
178
RAS22
179
RAS32
180
MA004
181
MA104
182
MA204
183
MA304
184
RAS03
185
RAS13
186
RAS23
187
RAS33
188
VDD
189
VDD
190
GND
191
GND
192
MA005
193
MA105
194
MA205
195
MA305
196
CAS00
197
CAS10
198
CAS20
199
CAS30
200
MA006
201
MA106
202
MA206
203
MA306
204
CAS01
205
CAS11
206
CAS21
207
CAS31
208
VDD
209
GND
210
MA007
211
MA107
212
MA207
213
MA307
214
CAS02
215
CAS12
216
CAS22
217
CAS32
218
MA008
219
MA108
220
MA208
221
MA308
222
CAS03
223
CAS13
224
CAS23
225
CAS33
226
GND
227
GND
228
VDD
229
VDD
230
NC
231
MA009
232
MA109
233
MA209
234
MA309
235
WE0
236
WE1
237
WE2
238
WE3
239
MA010
240
MA1
10
241
MA210
242
MA310
243
GND
244
MD0
245
MD1
246
GND
247
GND
248
MD2
249
MD3
250
GND
251
MD4
252
MD5
253
VDD
254
GND
255
MD6
256
MD7
257
VDD
258
GND
259
MD8
260
MD9
261
GND
262
MD10
263
MD1
1
264
VDD
265
VDD
266
GND
267
GND
268
MD12
269
MD13
270
GND
271
MD14
272
MD15
273
VDD
274
GND
275
MD16
276
MD17
277
VDD
278
GND
279
MD18
280
MD19
281
GND
282
MD20
283
MD21
284
GND
285
GND
286
MD22
287
MD23
288
GND
289
MD24
290
MD25
291
VDD
292
GND
293
MD26
294
MD27
295
VDD
296
GND
297
MD28
298
MD29
299
GND
300
MD30
301
MD31
302
VDD
303
VDD
304
R153
82J
R166
82J
R154
82J
R149
82J
R150
82J
R151
82J
R155
82J
C174
***P
R152
82J
IC24
HY5118164B
A0
17
A1
18
A2
19
A3
20
A4
23
A5
24
A6
25
A7
26
A8
27
A9
28
NC
11
NC
12
NC
15
NC
16
NC
32
LCAS
31
UCAS
30
RAS
14
WE
13
OE
29
D0
2
D1
3
D2
4
D3
5
D4
7
D5
8
D6
9
D7
10
D8
33
D9
34
D10
35
D11
36
D12
38
D13
39
D14
40
D15
41
VCC
1
VCC
6
VCC
21
VSS
22
VSS
37
VSS
42
IC25
HY5118164B
A0
17
A1
18
A2
19
A3
20
A4
23
A5
24
A6
25
A7
26
A8
27
A9
28
NC
11
NC
12
NC
15
NC
16
NC
32
LCAS
31
UCAS
30
RAS
14
WE
13
OE
29
D0
2
D1
3
D2
4
D3
5
D4
7
D5
8
D6
9
D7
10
D8
33
D9
34
D10
35
D11
36
D12
38
D13
39
D14
40
D15
41
VCC
1
VCC
6
VCC
21
VSS
22
VSS
37
VSS
42
C182
223Z
R142
10KJ
C175
***P
R167
82J
X5
SG-8002JC 50MHz
OE
1
GND
2
OUT
3
VDD
4
C239
104Z
NF85-92
NFM51R
R149-154,166,167
82J
R385
82J
PD [10..11]
MA [100..110]
MA100
RASB [20..23]
CASB [20..23]
MA200
MA [200..210]
CASB [10..13]
MA000
RASB [10..13]
PD [20..21]
MD [0..31]
IAD [0..31]
MD26
MD20
MD18
MD12
MD1
1
MD8
MA101
IAD25
MA209
IAD31
MD27
MD7
CASB02
RASB20
RASB00
IAD6
MD31
MD16
MA208
CASB21
RASB22
IAD8
PD1
1
MD28
MD24
RASB21
IAD24
MD29
MD19
CASB22
MA007
RASB13
MA203
MA202
RASB10
IAD22
IAD11
IAD2
CASB12
MA006
CASB00
IAD17
IAD10
IAD5
MD30
MD23
MD2
MA109
MA108
MA008
MA201
PD10
MD17
MD15
MD9
CASB23
RASB23
MA102
MA002
IAD9
IAD0
MD21
MD5
MD4
WEB0\
MA004
MA103
PD20
IAD30
IAD20
MD25
MA206
RASB12
IAD28
IAD18
IAD13
CBE2
MD14
MD13
CASB01
MA005
MA204
MA001
IAD26
IAD14
CBE3
MD6
MD0
MA106
MA104
PD21
IAD19
IAD16
MD10
MA210
CASB03
MA107
CASB11
CASB20
MA205
MA105
MA003
IAD21
IAD15
IAD7
MD1
MA1
10
IAD27
IAD12
CBE1
CBE0
MD3
MA009
CASB13
MA207
CASB10
IAD4
IAD1
TRDY\
MD22
RASB11
IAD29
IAD23
IAD3
WEB1\
WEB2\
MD0
MD1
MD2
MD3
MD4
MD5
MD6
MD7
MD8
MD9
MD10
MD11
MD12
MD13
MD14
MD15
MD16
MD17
MD18
MD19
MD22
MD23
MD20
MD21
MD26
MD24
MD27
MD25
MD31
MD29
MD28
MD30
MA000
MA001
MA002
MA003
MA004
MA005
MA006
MA007
MA008
MA009
MA000
MA001
MA002
MA003
MA004
MA005
MA009
MA006
MA007
MA008
CASB01
CASB00
CASB03
CASB02
MA [000..009]
CASB [00..03]
RASB02
IRDY\
+5V1
+5V1
+5V1
+5V1
+5V1
+5V1
MD [0..31]
IAD [0..31]
MA [200..210]
MA [100..110]
CASB [20..23]
CASB [10..13]
RASB [20..23]
RASB [10..13]
WEB2\
WEB1\
PD [20..21]
PD [10..11]
BRQ10\
BRQ9\
BRQ8\
BRQ7\
BRQ6\
BRQ5\
BRQ1\
BRQ0\
BGNT1\
CK33OUT5
BGNT6\
IBGNT\
CK33OUT7
BGNT8\
CK33OUT1
BGNT10\
BGNT0\
CK33OUT0
BGNT5\
CK33OUT6
BGNT7\
SUB_CLK
CK33OUT10
BGNT9\
CK33OUT8
IBREQ\
CBE0
CBE1
CBE2
CBE3
FRAME\
IRDY\
TRDY\
RES_IMG\
CK33OUT4
BGNT4\
BRQ4\
CK33OUT9
WEB0\
WEB0\
IC19
2-3A,6-8A,7-8C,11-7D
5,10
10-6D
2-6A,6-7C,7-8C,11-7D
2-6A,6-7A,7-8C,11-7D
6-7A
6-7D
2-7D
6-3C
6-3A
6-2D
11-7D
6-7D
6-7D
6-7A
2-6A
6-3C
6-3A
6-2D
11-7D
6-7D
10-4B
10-4C
10-6B
10-6C
10-3B
10-3B
10-3D
2-2A,2-6A,3-8B,4-7B,5-8B,6-2D,6-3A,7-8C
10-3B
6-7D
11-7D
11-7D
6-2D
6-3A
6-3C
2-6A
6-7A
1 2
3 4
9 8
7 6
1 2
3 4
6 7
8 9
1 2
3 4
9 8
7 6
1
2
3 4
6 7
8 9
7-8C
7-8C
7-8C
8-6C,11-7D,12-1C,12-6C
Uninstalled
Uninstalled
Uninstalled
11-7D
6-7D
10-3C
10-3D
Uninstalled
14-7C
Uninstalled
– 23 –
– 24 –
AR-336
4/2/1999
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