AR-335 (serv.man19). AR280 285 335 Circuit ICU PWB - Sharp Copying Equipment Service Manual (repair manual). Page 14

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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
IC37
MB86604L
\W
R
1
\R
D
2
VDD
3
VSS
4
CL
K
5
\R
ES
ET
6
IN
T
7
MODE
8
\D
B
P
9
VSS
10
\D
B
7
11
\D
B
6
12
\D
B
5
13
VDD
14
VSS
15
VSS
16
\D
B
4
17
\D
B
3
18
\D
B
2
19
\D
B
1
20
VSS
21
\D
B
0
22
TES
T
 1
23
TM
OUT
24
NC
25
\IOWR
26
\IORD
27
VDD
28
VSS
29
DMA 0
30
LDMDP
31
DMD 0
32
DMD 1
33
DMD 2
34
DMD 3
35
DMD 4
36
DMD 5
37
DMD 6
38
DMD 7
39
VSS
40
DMD8
41
DMD9
42
DMD10
43
DMD11
44
DMD12
45
DMD13
46
DMD14
47
DMD15
48
UDMDP
49
\DMBHE
50
\D
A
C
K
51
DREQ
52
VDD
53
VSS
54
TP
55
NC
56
TES
T
 2
57
\I/
O
58
VSS
59
\R
E
Q
60
\C
/D
61
\S
E
L
62
\M
S
G
63
VDD
64
VSS
65
VSS
66
\R
S
T
67
\A
C
K
68
\B
S
Y
69
VSS
70
\A
T
N
71
A0
72
A1
73
A2
74
A3
75
A4
76
\CS 0
77
VDD
78
VSS
79
\CS1
80
LDP
81
D0
82
D1
83
D2
84
D3
85
D4
86
D5
87
D6
88
D7
89
VSS
90
D8
91
D9
92
D10
93
D11
94
D12
95
D13
96
D14
97
D15
98
UDP
99
\BHE
100
R261
10KJ
R260
10KJ
R259
10KJ
R314
10KJ
R264
10KJ
R315
10KJ
C229
223Z
C234
223Z
C227
223Z
C228
223Z
R347
220J
R346
220J
R345
220J
R344
220J
R343
220J
R342
220J
R359
220J
R358
220J
R357
220J
R356
220J
R355
220J
R354
220J
R371
220J
R370
220J
R369
220J
R368
220J
R367
220J
R366
220J
R334
330J
R361
330J
R364
330J
R349
330J
R352
330J
R335
330J
R337
330J
R362
330J
R365
330J
R350
330J
R353
330J
R336
330J
R339
330J
R360
330J
R363
330J
R348
330J
R351
330J
R338
330J
R263
4.7KJ
IC39
MB86604L
\W
R
1
\R
D
2
VDD
3
VSS
4
CL
K
5
\R
ES
ET
6
IN
T
7
MODE
8
\D
B
P
9
VSS
10
\D
B
7
11
\D
B
6
12
\D
B
5
13
VDD
14
VSS
15
VSS
16
\D
B
4
17
\D
B
3
18
\D
B
2
19
\D
B
1
20
VSS
21
\D
B
0
22
TES
T
 1
23
TM
OUT
24
NC
25
\IOWR
26
\IORD
27
VDD
28
VSS
29
DMA 0
30
LDMDP
31
DMD 0
32
DMD 1
33
DMD 2
34
DMD 3
35
DMD 4
36
DMD 5
37
DMD 6
38
DMD 7
39
VSS
40
DMD8
41
DMD9
42
DMD10
43
DMD11
44
DMD12
45
DMD13
46
DMD14
47
DMD15
48
UDMDP
49
\DMBHE
50
\D
A
C
K
51
DREQ
52
VDD
53
VSS
54
TP
55
NC
56
TES
T
 2
57
\I/
O
58
VSS
59
\R
E
Q
60
\C
/D
61
\S
E
L
62
\M
S
G
63
VDD
64
VSS
65
VSS
66
\R
S
T
67
\A
C
K
68
\B
S
Y
69
VSS
70
\A
T
N
71
A0
72
A1
73
A2
74
A3
75
A4
76
\CS 0
77
VDD
78
VSS
79
\CS1
80
LDP
81
D0
82
D1
83
D2
84
D3
85
D4
86
D5
87
D6
88
D7
89
VSS
90
D8
91
D9
92
D10
93
D11
94
D12
95
D13
96
D14
97
D15
98
UDP
99
\BHE
100
R270
10KJ
R269
10KJ
R268
10KJ
R273
10KJ
R340
10KJ
R341
10KJ
R302
220J
R303
220J
R304
220J
R305
220J
R306
220J
R307
220J
R316
220J
R317
220J
R318
220J
R319
220J
R320
220J
R321
220J
R328
220J
R329
220J
R330
220J
R331
220J
R332
220J
R333
220J
R296
330J
R297
330J
R298
330J
R299
330J
R300
330J
R301
330J
R308
330J
R309
330J
R310
330J
R311
330J
R312
330J
R313
330J
R322
330J
R323
330J
R324
330J
R325
330J
R326
330J
R327
330J
R272
4.7KJ
IC35D
74AC32
12
13
11
C233
223Z
C235
223Z
C231
223Z
C232
223Z
R265
***J
R266
0J
R271
***J
R267
0J
R257
0J
R256
***J
R262
***J
R258
0J
A DB\ [0..7]
A DMD [0..15]
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
SUB_
A3
DMD 0
DMD 1
DMD 2
DMD 3
DMD 4
DMD 5
DMD 6
DMD 7
DMD 8
DMD 9
DMD 10
DMD 11
DMD 12
DMD 13
DMD 14
DMD 15
A DB
0\
A DB
2\
A DB
3\
A DB
4\
A DB
5\
A DB
6\
A DB
7\
A DB
1\
A DBP\
A ACK\
A C/D\
A BSY\
A REQ\
A RST\
A ATN\
A SEL\
A I/O\
A DB0\
A DB1\
A DB2\
A DB3\
A DB4\
A DB5\
A DB6\
A DB7\
A DBP\
SUB_
A4
SUB_
A5
B DMD [0..15]
B DB\ [0..7]
DMD0
DMD1
DMD2
DMD3
DMD4
DMD5
DMD6
DMD7
DMD8
DMD9
DMD10
DMD11
DMD12
DMD13
DMD14
DMD15
A3
A4
A5
SUB_A6
B DBP\
B ATN\
B BSY\
B ACK\
B RST\
B MSG\
S_R/W
WR\
B DB0\
B C/D\
B REQ\
B SEL\
B I/O\
B DB1\
B DB2\
B DB3\
B DB4\
B DB5\
B DB6\
B DB7\
B DBP\
D [0..15]
A MSG\
+5V1
+5V1
+5V1
+5V1
+5V1
+5V1
+5V1
+5V1
+5V1
+5V1
+5V1
+5V1
+5V1
+5V1
+5V1
+5V1
A DACK\
A DMUDS\
A DMR/W
A DMLDS\
A DREQ
A DMD [0..15]
CN12-34
A INTSPC\
CK20M
S R/W
LLDS\
LMDS\
SUB_A6
SUB_A4
SUB_A3
CN12-41
CN12-43
CN12-44
CN12-45
CN12-50
CN12-49
CN12-48
CN12-47
A CSSPC\
RES_IMG\
SUB_A5
A DB\ [0:7]
B CSSPC\
B DREQ
B DMD [0..15]
B DMR/W
B DMLDS\
B DMUDS\
B DACK\
SUB_A6
A4
A3
B INTSPC\
D [0..15]
CLK20M
A5
CN2-26..33
CN2-34
CN11-43
CN11-44
CN11-45
CN11-46
CN11-50
CN11-49
CN11-48
CN11-47
CN11-41
R/W
LLDS\
LMDS\
RES_IMG\
SUB_A7
CN12-46
A ATN\
A ACK\
A RST\
A MSG\
A SEL\
A C/D\
A REQ\
A I/O\
A ATN\
A BSY\
A ACK\
A RST\
A REQ\
A C/D\
A SEL\
A MSG\
A BSY\
A I/O\
B ATN\
B BSY\
B ACK\
B MSG\
B RST\
B SEL\
B C/D\
B REQ\
B I/O\
B ATN\
B BSY\
B ACK\
B RST\
B I/O\
B C/D\
B REQ\
B SEL\
B MSG\
SCSI(PRT)
14-3B
12-2A
12-2A
12-2C
12-2C
12-3A
9-7C,12-7A
12-7B
IC37
12-2B
12-2A
12-2A
9-5B,12-7A
12-7A
12-7A,13-5B
9-6C,12-7A,13-5B
SCSI(A2)
12-7C
12-7B
12-7B
12-7B
12-7C
12-7C
12-7C
12-3A
9-7C,12-7A
12-7A
12-7B
8-8C,9-6C,10-3A,12-7D,13-1C
IC39
9-7C,12-7A
2-2A,2-6A,3-3D,4-7B,6-8B,7-2D,7-3A
9-7C,12-7A
8-8C,9-6C,10-3A,12-7D,13-6C
2-2A,2-6A,3-3D,4-7B,6-8B,7-2D,7-3A
12-7A,13-1B
9-7D,12-7A
9-6C,12-7A,13-1B
9-6C,12-7A,13-5B
9-6C,12-7A,13-5B
ICU PWB (MB86604L)
13/15
335-C20.DSF
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