AR-286 (serv.man3). AR250 286 336-Circuit Diagrams - Sharp Copying Equipment Service Manual (repair manual). Page 45

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IC31
SCSI G/A
GND
1
GND
2
RST
3
GND
4
CLK
5
GND
6
GND
7
VDD
8
VDD
9
SMC
10
AMC
11
SIN
12
SCK
13
SOT
14
GND
15
B INTSPC
16
B DREQ
17
B EMPTY
18
VDD
19
GND
20
GND
21
B FULL
22
B READY
23
B XEND
24
B YEND
25
GND
26
B DMD0
27
B DMD1
28
B DMD2
29
B DMD3
30
GND
31
VDD
32
B DMD4
33
B DMD5
34
B DMD6
35
B DMD7
36
VDD
37
VDD
38
GND
39
GND
40
B DMD8
41
B DMD9
42
B DMD10
43
B DMD11
44
GND
45
B DMD12
46
B DMD13
47
B DMD14
48
B DMD15
49
GND
50
VDD
51
B DMR W
52
B DMLDS
53
B DMUDS
54
B DACK
55
VDD
56
VDD
57
GND
58
B DMA0
59
B TERM
60
GND
61
PBIN0
62
PBIN1
63
PBIN2
64
PBIN3
65
PBIN4
66
PBIN5
67
PBIN6
68
PBIN7
69
GND
70
GND
71
GND
72
B CSSPC
73
A CSSPC
74
GND
75
GND
76
VDD
77
VDD
78
VDD
79
VDD
80
LLDS
81
LUDS
82
R/W
83
GND
84
D15
85
D14
86
D13
87
D12
88
GND
89
VDD
90
D1
1
91
D10
92
D9
93
D8
94
GND
95
GND
96
D7
97
D6
98
D5
99
D4
100
GND
101
VDD
102
D3
103
D2
104
D1
105
D0
106
GND
107
A7
108
A6
109
A5
11
0
A4
111
VDD
11
2
VDD
11
3
VDD
11
4
GND
11
5
GND
11
6
A3
11
7
A2
11
8
A1
11
9
A0
120
GND
121
VDD
122
TEST1
123
GND
124
CK20M
125
GND
126
GND
127
CK40M
128
GND
129
GND
130
VDD
131
VDD
132
GND
133
GND
134
PAIN7
135
PAIN6
136
PAIN5
137
PAIN4
138
PAIN3
139
PAIN2
140
PAIN1
141
PAIN0
142
GND
143
A
TERM
144
A
DMA0
145
GND
146
A
DACK
147
A
DMUDS
148
A
DMLDS
149
A
DMR
W
150
VDD
151
VDD
152
GND
153
GND
154
A DMD15
155
A DMD14
156
A DMD13
157
A DMD12
158
GND
159
GND
160
A DMD11
161
A DMD10
162
A DMD9
163
A DMD8
164
GND
165
VDD
166
A DMD7
167
A DMD6
168
A DMD5
169
A DMD4
170
VDD
171
GND
172
A DMD3
173
A DMD2
174
A DMD1
175
A DMD0
176
GND
177
A YEND
178
A XEND
179
A READY
180
A FULL
181
GND
182
GND
183
VDD
184
A EMPTY
185
A DREQ
186
A INTSPC
187
VDD
188
VDD
189
VDD
190
GND
191
GND
192
IOADR3
193
IOADR2
194
IOADR1
195
IOADR0
196
GND
197
VDD
198
AD31
199
AD30
200
GND
201
AD29
202
GND
203
VDD
204
AD28
205
AD27
206
GND
207
AD26
208
VDD
209
GND
210
AD25
211
AD24
212
GND
213
AD23
214
GND
215
VDD
216
AD22
217
AD21
218
GND
219
AD20
220
GND
221
VDD
222
AD19
223
AD18
224
GND
225
GND
226
GND
227
GND
228
VDD
229
VDD
230
AD17
231
GND
232
AD16
233
AD15
234
GND
235
VDD
236
AD14
237
GND
238
AD13
239
AD12
240
GND
241
VDD
242
AD1
1
243
GND
244
AD10
245
GND
246
GND
247
GND
248
VDD
249
AD9
250
GND
251
AD8
252
AD7
253
GND
254
VDD
255
AD6
256
GND
257
AD5
258
AD4
259
GND
260
VDD
261
AD3
262
VDD
263
VDD
264
VDD
265
VDD
266
GND
267
GND
268
AD2
269
AD1
270
GND
271
AD0
272
GND
273
C/BE3
274
C/BE2
275
GND
276
VDD
277
C/BE1
278
GND
279
C/BE0
280
TRDY
281
VDD
282
VDD
283
VDD
284
GND
285
GND
286
IRDY
287
RAME
288
GND
289
IRQ6
290
GND
291
VDD
292
IRQ7
293
BREQ9
294
GND
295
BREQ8
296
GND
297
BGNT9
298
BGNT8
299
GND
300
GND
301
GND
302
VDD
303
VDD
304
C35
104Z**
C226
223Z
C219
223Z
C204
223Z
C214
223Z
C215
223Z
R201
0J
R195
10KJ
R202
0J
X6
SG-8002JC 40MHz
OE
1
GND
2
OUT
3
VDD
4
C223
104Z
R200
0J
R199
0J**
R198
0J
C223
104Z
R197
0J
R351
0J
R350
0J**
R349
0J**
R352
0J**
A5
A4
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D13
D14
D15
BGNT8\
BGNT9\
BRQ8\
BRQ9\
IRQ7\
IRQ6\
FRAME\
IRDY\
TRDY\
CBE2
CBE1
CBE0
A DMD0
A DMD1
A DMD2
A DMD3
A DMD4
A DMD5
A DMD6
A DMD7
A DMD8
A DMD9
A DMD10
A DMD11
A DMD12
A DMD13
A DMD14
A DMD15
A DMD [0..15]
IAD31
IAD30
IAD29
IAD28
IAD27
IAD26
IAD25
IAD24
IAD23
IAD22
IAD21
IAD20
IAD19
IAD18
IAD17
IAD16
IAD15
IAD14
IAD13
IAD12
IAD1
1
IAD10
IAD9
IAD8
IAD7
IAD6
IAD5
IAD4
IAD3
IAD2
IAD1
IAD0
CBE3
IAD [0..31]
D12
D1
1
A3
A6
A7
B DMD0
B DMD1
B DMD2
B DMD3
B DMD4
B DMD5
B DMD6
B DMD7
B DMD8
B DMD9
B DMD10
B DMD11
B DMD12
B DMD13
B DMD14
B DMD15
+5V1
+5V1
+5V1
LLDS\
LMDS\
S R/W
CK20M
IAD [0..31]
CBE3
TRDY\
IRDY\
FRAME\
BGNT9\
BGNT8\
BRQ9\
BRQ8\
RES IMG\
CK33OUT8
A DMD [0..15]
A DMR/W\
A DMLDS\
A DMUDS\
A DACK\
D [0..15]
A CSSPC\
A INTSPC\
A DREQ
CBE2
CBE1
CBE0
SUB_A5
SUB_A4
SUB_A3
SUB_A6
IRQ6\
IRQ7\
B CSSPC\
B DMD[0..15]
B DACK\
B DMR/W\
B DMLDS\
B DMUDS\
B INTSPC\
B DREQ\
IC31
7-8C,8-6C,9-3A,12-1C,12-6C
2-3A,6-8A,7-8C,9-8C
2-6A,6-7A,7-8C,9-8C
2-2B
2-2B
9-7A
9-4A
9-7A
9-7A
12-1B
8-7C,12-1C,12-5C
12-1C,12-5C
8-5B,12-5B
12-1B,12-5B
8-6C,12-1B,12-5B
12-1C
12-4B
12-4C
12-4C
12-4B
12-1C
8-7D,12-5B
2-6A,6-7C,7-8C,9-8D
2-6A,6-7C,7-8C,9-8D
2-2A,2-6A,3-8B,4-7B,5-8B,6-2D,6-3A
12-5C
12-8A
12-8C
12-8C
12-8C
12-8B
12-8A
12-4C
12-4C
12-1B,12-5B
12-1B,12-5B
2-6A,6-7C,7-8C,9-8C
9-4A
2-6A,6-7A,7-8C,9-8C
2-6A,6-7A,7-8C,9-8C
2-6A,6-7A,7-8C,9-8C
8-7C,12-1C,12-5C
*Selection part
336 (FC53)
R352
R351
R350
R349
R197
R200
R199
R198
:Not installed
:Installed
Uninstalled
ICU PWB (SCSI_G/A) (AR-336)
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
D
C
B
A
D
C
B
A
11/14
– 85 –
– 86 –
AR-336
4/2/1999
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