Sharp FO 4400 - B/W Laser - All-in-One Service Manual page 111

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E
MAIN CPU
R303
2
XTAL2
3
1.9VD
EXTAL2
4.7K
109
AUDATA[0]/PTF[0]
110
AUDATA[1]/PTF[1]
111
AUDATA[2]/PTF[2]
112
AUDATA[3]/PTF[3]
113
AUDSYNC/PTF[4]
R335
100
120
TDO/PTF[5]
R336
0
121
ASEBRKAK/PTF[6]
122
ASEMD0
114
TDI/PTG[0]
116
TCK/PTG[1]
118
TMS/PTG[2]
119
TRST/PTG[3]
159
AUDCK/PTG[4]
R301
10K
162
ADTRG/PTG[5]
151
IRQ0/IRL0/PTH[0]
152
IRQ1/IRL1/PTH[1]
153
IRQ2/IRL2/PTH[2]
154
IRQ3/IRL3/PTH[3]
R295
10K
155
IRQ4/PTH[4]
160
DREQ0/PTH[5]
161
DREQ1/PTH[6]
TP2
0
10K
171
AN[0]/PTJ[0]
1
10K
172
AN[1]/PTJ[1]
TP3
173
AN[2]/DA[1]/PTJ[2]
174
AN[3]/DA[0]/PTJ[3]
TP1
140
TxD0/SCPT[0]
SHADG
141
SCK0/SCPT[1]
R292
142
TxD2/SCPT[2]
0
143
SCK2/SCPT[3]
144
RTS2/SCPT[4]
147
TP5
CTS2/IRQ5/SCPT[5]
145
RxD0/SCPT[0]
146
RxD2/SCPT[2]
169
MD5
168
MD4
167
MD3
164
MD2
129
MD1
163
MD0
131
XTAL
R332
4.7K
132
EXTAL
138
CKIO
R294
4.7K
149
RESETM
157
NMI
165
RESETP
R297
10K
166
CA
+3.3V
C17
1u/6.3V
13
VccQ1
11
VssQ1
C21
1u/6.3V
27
VccQ2
25
VssQ2
C20
1u/6.3V
39
VccQ3
37
VssQ3
C25
1u/6.3V
51
VccQ4
49
VssQ4
C24
1u/6.3V
63
VccQ5
61
VssQ5
C22
1u/6.3V
86
VccQ6
84
VssQ6
C19
1u/6.3V
95
VccQ7
93
VssQ7
C238
1u
139
VccQ8
137
VssQ8
C11
1u/6.3V
158
VccQ9
156
VssQ9
+1.9VD
C16
1u/6.3V
21
Vcc1
19
Vss1
C23
1u/6.3V
73
Vcc2
71
Vss2
C13
1u/6.3V
117
Vcc3
115
Vss3
C10
1u/6.3V
150
Vcc4
148
Vss4
130
Vss
Vcc-PLL
1u/6.3V
C14
123
Vcc-PLL1
125
Vss-PLL1
C236
470p
124
CAP1
1u/6.3V
C15
128
Vcc-PLL2
126
Vss-PLL2
TP15
127
CAP2
+3.3VSHA
1u/6.3V
C12
175
AVcc1
176
AVss1
170
AVss
HD6417706F133
HADG
E
F
IC24
R451
76
A25
R452
75
A24
74
A23
72
A22
BR34
70
A21
33 x4
69
A20
68
A19
67
A18
BR35
66
A17
33 x4
65
A16
64
A15
62
A14
BR36
60
A13
33 x4
59
A12
58
A11
57
A10
BR37
56
A9
33 x4
55
A8
54
A7
53
A6
BR38
52
A5
33 x4
50
A4
48
A3
47
A2
BR39
46
A1
33 x4
45
A0
5
D31/PTB[7]
6
D30/PTB[6]
7
BR21
D29/PTB[5]
8
D28/PTB[4]
9
D27/PTB[3]
10
D26/PTB[2]
12
BR17
D25/PTB[1]
14
D24/PTB[0]
15
D23/PTA[7]
16
D22/PTA[6]
17
BR20
D21/PTA[5]
18
D20/PTA[4]
20
D19/PTA[3]
22
D18/PTA[2]
23
BR16
D17/PTA[1]
24
D16/PTA[0]
N.M.
26
D15
28
D14
BR19
29
D13
33 x4
30
D12
31
D11
32
D10
BR15
33
D9
33 x4
34
D8
35
D7
36
D6
BR18
38
D5
33 x4
40
D4
41
D3
42
D2
BR14
43
D1
33 x4
44
D0
78
RD
79
WE0/DQMLL
80
WE1/DQMLU/WE
83
RD/WR
77
BS/PTC[0]
R453
81
WE2/DQMUL/ICIORD/PTC[1]
R449
82
WE3/DQMUU/ICIOWR/PTC[2]
85
N.M.
CS0
87
CS2/PTC[3]
88
CS3/PTC[4]
89
CS4/PTC[5]
TP7
90
CS5/CE1A/PTC[6]
91
CS6/CE1B/PTC[7]
96
RASL/PTD[0]
TP8
97
RASU/PTD[1]
98
CASL/PTD[2]
TP9
99
CASU/PTD[3]
100
CKE/PTD[4]
R347
101
IOIS16/PTD[5]
TP10
92
CE2A/PTD[6]
TP11
94
CE2B/PTD[7]
TP12
102
BACK
R348
103
BREQ
104
WAIT
105
DACK0/PTE[0]
106
DACK1/PTE[1]
107
DRAK0/PTE[2]
108
DRAK1/PTE[3]
TP13
133
STATUS0/PTE[4]
TP14
134
STATUS1/PTE[5]
R342
135
TCLK/PTE[6]
TP16
136
IRQOUT/PTE[7]
+1.9VD
C18
1
Vcc-RTC
4
Vss-RTC
F
G
33
A25
33
A24
A23
A22
A21
A20
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
D31
D30
D29
D28
D27
D26
D25
D24
D23
D22
D21
D20
D19
D18
D17
D16
D15
D14
D13
D12
D11
D10
D9
DEBUG
D8
1
D7
2
JP1
D6
3
D5
D4
NORMAL
N.M.
D3
D2
D1
D0
R426
33
R425
33
R427
33
R450
33
R424
33
R61
0
R341
33
R340
33
R339
33
R338
33
N.M.
R337
R346
33
R345
33
R344
33
4.7K
+3.3V
R349
4.7K
+3.3V
4.7K
+3.3V
R421
100
R420
100
R419
0
R418
0
10K
+3.3V
1u/6.3V
DG
G
6 – 2
A[25:0]
( 2-1A)( 3-1A)( 4-6A)( 5-4A)
( 7-5C)(11-6A)(12-2E)
D[31:0]
( 2-2A)( 3-2A)( 4-6A)( 5-4A)
( 7-4C)(11-6A)(12-4D)(12-2D)
+3.3V
IC16C
C247
IC16E
0.1u
6
5
74LV14A
74LV14A
+3.3V
IC16D
IC16F
8
9
74LV14A
74LV14A
DG
+3.3V
N.M.
R422
/CS0J
( 2-3A)
R423
0
C71
N.M.
DG
/RD
( 4-2A)( 7-3B)(11-3D)
/WE0
( 2-2A)( 4-2A)( 7-3B)(11-3A)
/WE1
( 4-2D)( 7-3B)(11-3D)
RD/WR
( 2-3A)( 3-1A)( 4-5D)(7-3B)(11-3A)(12-3A)
/BS
( 2-3A)( 7-3B)(11-5D)
/DQMUL
( 4-4D)(11-3A)
/DQMUU
( 4-4D)(11-3D)
/CS0
(11-4A)
/CS2
( 4-2A)(11-3A)
/CS3
( 4-4D)(11-3D)
/CS4
( 2-3A)(11-4D)
/CS6
( 7-3B)(11-4D)
/RASL
( 4-4D)(11-3A)
/CASL
( 4-5D)(11-3A)
CKE
( 4-5D)
CRNT0
(6-5A)
CRNT1
(6-5A)
/WAIT
( 2-3A)( 7-3B)
/DACK0
( 2-3A)
/DACK1
( 2-4A)
/DRAK0
( 2-3A)
/DRAK1
( 2-4A)
FO-4400U
FO-CS1
H
1/12
6
+3.3V
10
11
5
+3.3V
12
13
4
3
(12-1A)(12-5I)
(12-5A)
2
1
H

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