AR-335 (serv.man19). AR280 285 335 Circuit ICU PWB - Sharp Copying Equipment Service Manual (repair manual). Page 13

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1
2
3
4
5
6
7
8
D
C
B
A
D
C
B
A
1
2
3
4
5
6
7
8
X7
40MHz
VCC
1
OUT
3
G
2
IC33
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
\L
L
D
S
81
\L
UDS
82
R/
W
83
GND
84
D1
5
85
D1
4
86
D1
3
87
D1
2
88
GND
89
VDD
90
D1
1
91
D1
0
92
D9
93
D8
94
GND
95
GND
96
D7
97
D6
98
D5
99
D4
10
0
GND
10
1
VDD
10
2
D3
10
3
D2
10
4
D1
10
5
D0
10
6
GND
10
7
A7
10
8
A6
10
9
A5
11
0
A4
11
1
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
12
0
GND
12
1
VDD
12
2
TES
T
1
12
3
GND
12
4
CK2
0
M
12
5
GND
12
6
GND
12
7
CK4
0
M
12
8
GND
12
9
GND
13
0
VDD
13
1
VDD
13
2
GND
13
3
GND
13
4
PAI
N7
13
5
PAI
N6
13
6
PAI
N5
13
7
PAI
N4
13
8
PAI
N3
13
9
PAI
N2
14
0
PAI
N1
14
1
PAI
N0
14
2
GND
14
3
A T
E
RM
14
4
A DMA0
14
5
GND
14
6
\A
 DACK
14
7
\A
 DM
UDS
14
8
\A
 D
M
L
D
S
14
9
\A
 DM
R W
15
0
VDD
15
1
VDD
15
2
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
22
9
VDD
23
0
AD1
7
23
1
GND
23
2
AD1
6
23
3
AD1
5
23
4
GND
23
5
VDD
23
6
AD1
4
23
7
GND
23
8
AD1
3
23
9
AD1
2
24
0
GND
24
1
VDD
24
2
AD1
1
24
3
GND
24
4
AD1
0
24
5
GND
24
6
GND
24
7
GND
24
8
VDD
24
9
AD9
25
0
GND
25
1
AD8
25
2
AD7
25
3
GND
25
4
VDD
25
5
AD6
25
6
GND
25
7
AD5
25
8
AD4
25
9
GND
26
0
VDD
26
1
AD3
26
2
VDD
26
3
VDD
26
4
VDD
26
5
VDD
26
6
GND
26
7
GND
26
8
AD2
26
9
AD1
27
0
GND
27
1
AD0
27
2
GND
27
3
C/
BE
3
27
4
C/
BE
2
27
5
GND
27
6
VDD
27
7
C/
BE
1
27
8
GND
27
9
C/
BE
0
28
0
\T
RDY
28
1
VDD
28
2
VDD
28
3
VDD
28
4
GND
28
5
GND
28
6
\IRDY
28
7
\R
A
M
E
28
8
GND
28
9
\IR
Q
6
29
0
GND
29
1
VDD
29
2
\IR
Q
7
29
3
\B
R
E
Q
9
29
4
GND
29
5
\B
R
E
Q
8
29
6
GND
29
7
\B
G
N
T
9
29
8
\B
G
N
T
8
29
9
GND
30
0
GND
30
1
GND
30
2
VDD
30
3
VDD
30
4
C36
104Z
C220
223Z
C217
223Z
C205
223Z
C216
223Z
C218
223Z
R245
0J
R233
10KJ
R246
0J
R244
0J
R243
0J
R242
0J
C244
104Z
A5
A4
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D1
0
D1
3
D1
4
D1
5
BGNT8
\
BGNT9
\
BRQ8
\
BRQ9
\
IR
Q
7
\
IR
Q
6
\
FRA
M
E\
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
IA
D
1
7
IA
D
1
6
IA
D
1
5
IA
D
1
4
IA
D
1
3
IA
D
1
2
IA
D
1
1
IA
D
1
0
IA
D
9
IA
D
8
IA
D
7
IA
D
6
IA
D
5
IA
D
4
IA
D
3
IA
D
2
IA
D
1
IA
D
0
CBE3
IAD [0..31]
D1
2
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
A2
+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 CCSPC\
A INTSPC\
A DREQ
CBE2
CBE1
CBE0
SUB_A5
SUB_A4
SUB_A3
SUB_A6
IRQ6\
IRQ7\
SUB_A7
B CCSPC\
B DMD[0..15]
B DACK\
B DMR/W\
B DMLDS\
B DMUDS\
B INTSPC\
B DREQ\
SUB_A2
IC33
8-8C,9-6C,10-3A,13-1C,13-6C
2-3A,7-8A,8-8C,10-8C
2-6A,7-7C,8-8C,10-8C
2-6A,7-7C,8-8C,10-8D
2-2B
2-2B
10-4A
10-7A
10-4A
10-7A
10-7A
13-1B
9-7C,13-1C,13-5C
13-1C,13-5C
9-5B,13-5B
13-1B,13-5B
9-6C,13-1B,13-5B
13-1C
13-4B
13-4C
13-4C
13-4B
13-1C
9-6C
9-7D,13-5B
13-5B
2-6A,7-7C,8-8C,10-8C
2-6A,7-7C,8-8C,10-8C
2-6A,7-7C,8-8C,10-8C
2-6A,7-7C,8-8C,10-8D
2-6A,7-7C,8-8C,10-8D
2-2A,2-6A,3-3D,4-7B,6-8B,7-2D,7-3A
13-5C
13-8A
13-8C
13-8C
13-8C
13-8B
13-8A
13-1C,13-5C
13-4C
13-4C
13-1B,13-5B
13-1B,13-5B
ICU PWB (SCSI_G/A)
12/15
335-C19.DSF
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