Sharp UX-B20 Service Manual

UX-B20U/UX-B20C/B25C
6 – 4
4. ASIC Block (4/8)
A A
B B
C C
D D
E E
F F
G G
H H
I I
6 6 5 5 4 4 3 3 2 2 1 1
A(A)[11:0]
A(A)3 A(A)5 A(A)10 A(A)11 A(A)9 A(A)2 A(A)7 A(A)8 A(A)0 A(A)1
D5 D2
A3
D7
A(A)4 A(A)6
D(A)14 D(A)0
A5
D(A)8 D(A)1 D(A)9 D(A)6 D(A)3 D(A)2
A4
D(A)15 D(A)4
D1
D(A)10 D(A)7 D(A)11 D(A)5 D(A)12
D0
A2
D3
A1 A0
D(A)[15:0]
D6 D4
D(A)13
A(A)[11:0]
D(A)[15:0]
SDCE-
SDWE-
SDCAS- SDRAS-
SDCLK
ASICRES
A[5:0]
D[7:0] PLAT
PCLK PDAT
nCS SCK SDI TBRES-
CLOCK
INT
GACS-
RD-
WR-
WAIT
PIN
CNHEAD2-11
CNHEAD1-9
CNHEAD1-10
CNHEAD1-7
CNHEAD1-3 CNHEAD2-10
CNHEAD1-2 CNHEAD2-9
CNHEAD2-8 CNHEAD2-3
CNHEAD2-2
CNHEAD2-4
CNHEAD2-5 CNHEAD2-7
CNHEAD2-6
SCANSYNC
DG
+3.3VA
DG
DG
+3.3VA
DG
DG
DG
DGDG DG
DG
DG
DG
(2-3I)
(2-3I)
(2-2G) (2-2G) (2-2G) (2-2G) (2-1G)
(3-3B)
(1-5I) (2-6A)
(1-6I) (2-5A)
(1-3A) (1-3A) (1-3A)
(5-6B)
(5-5B) (5-5B) (5-5B)
(1-5A)
(1-3A)
(1-2I) (1-3I) (1-3I) (1-3I) (3-3C)
(6-3F)
(POS)
(OK2PRT)
(PHID1)
(PCLK)
(AGATE)
(ACLK)
(SPRES-)
(LHCS)
(LCN)
(PLOAD)
(PENABLE)
(PHD2)
(PHD1)
(PHD0)
(PHD3)
C183
R156
5.1k
C224
1000pF
R245 33
R198 33
R181
N.M.
C180
0.1uF
RA5
100
5
18
7 6
2 3 4
C111
R109 33
C232
470pF
470pF
470pF
C229
470pF
<DEBUG>
C114
R248
0
C231
C150
C12
R2
100
RA8
100
5
18
7 6
2 3 4
C182
R110
1M
C148
RA13
33
5
18
7 6
2 3 4
C151
C179
0.1uF
C227
C236
C226
<DMYOUT>
C117
R197 33
C225
RA14
33
5
18
7 6
2 3 4
C228
C230
C112 100pF
C46
1u
C116
C113
N.M.
N.M.
C47
1u
C152
22pF
C149
R157
47k
R111
150
C185
RA4
100
5
18
7 6
2 3 4
RA3
100
5
18
7 6
2 3 4
C233
470pF
470pF
470pF
470pF
470pF
470pF
470pF
470pF
470pF
470pF
470pF
RA15
33
5
18
7 6
2 3 4
C235
R134
0
R246 33
C11
N.M.
IC4
µPD65945
ASIC
WR_N
107
RD_N
106
A0
104
A2
102
A4
100
D0
95
D1
94
D4
91
D3
92
D6
89
RRAS_N
42
RCAS_N
43
RWE_N
44
CS_N
68
RD0
9
RD1
8
RD2
7
RD3
6
RD5
4
RD4
5
RD6
3
RD7
2
RD8
19
RD9
18
RD10
17
RD11
16
RD12
15
RD13
14
RD15
12
RD14
13
RCS_N
41
A3
101
D7
88
D5
90
D2
93
A5
99
A1
103
PDAT
65
PLAT
66
PCLK
64
ASICRES
70
RB
40
RA4
31
RA5
30
RA6
29
RA7
28
RA10
39
RA9
26
RA8
27
INT_N
67
VDD
1
VDD
10
VDD
25
VDD
57
VDD
73
VDD
36
VDD
56
VDD
76
GND
45
GND
46
GND
59
SYSCLK
83
RDY
61
RA3
32
RA2
33
RA1
34
RA0
35
SRST_N
133
SDAT
140
SCLK
142
SCS_N
141
RCLK
22
DEBUG
54
TEST
50
TM0
51
TM1
52
TM2
53
XIN
75
SCANSYNC
60
PDATA1
119
AGATE
129
ACLK
130
PDATA0
120
PLCLK
128
PENABLE
114
PDATA2
118
PLOAD
113
PDATA3
117
LHCS
112
SFRES_N
127
POS
124
PHID
126
OK2PRT
125
LCN
111
PIN_N
47
VDD
86
VDD
79
VDD
80
VDD
98
VDD
121
VDD
134
VDD
108
VDD
87
GND
11
GND
20
GND
21
GND
23
GND
24
GND
37
GND
38
GND
48
GND
49
GND
58
GND
62
GND
63
GND
69
DMYOUT
55
XOUT
74
GND
71
GND
81
GND
77
GND
72
GND
78
GND
96
GND
84
GND
85
GND
97
GND
82
GND
116
GND
115
GND
105
GND
109
GND
110
GND
123
GND
132
GND
143
GND
131
GND
122
GND
144
SMC
135
SCK
136
SIN
137
AMC
138
SOT
139
C234
R247 33
C115
1000pF
32.256MHz
X2
C181
R3
200
C184
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
C118 10pF
C186
R112
120
R196 33
ASIC Block
4/8

Sharp UX-B20 Specifications

General

Brand	Sharp
Model	UX-B20
Category	Fax Machine
Language	English