Service manual

UX-A260U
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT
[1] Control PWB circuit 1/6
Main control block
6 – 1
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
WR-
THADI
BZOUT1
CNTH-10
CNTH-2
CNTH-12
CNCIS-5
CNTH-11
CNTH-3
CNPN-10
CNPN-12
CNPN-9
CNPN-13
A[18:0]
PWRDWN-
TPB-
TPA-
TPA
TPB
CNTH-14
CNTH-13
CNCIS-4
CNPN-14
CNPN-11
CNPN-2
CNPN-3
CNPN-4
CNPN-15
CNPN-16
CNPN-1
D[7:0]
RD-
CAS-
ROMCS-
VIN
DWR-
RAS-
+3.3V
VBAT
+3.3V
+3.3V
STRB3-
STRB2-
STRB1-
PCLK
DATA
LATCH-
DG
DG
DG
D0
D1
D2
D3
D4
D5
D7
DG
(2-4G)
(2-4G)
(2-4G)
(2-5A)
DG
øT
STRB4-
SEN3
SEN2
SEN1
E
SEN4
SEN0
DG DGDG
DG
D6
A0
A3
A13
A11
A15
(2-6A)
A8
A7
A18
A9
A16
A14
A17
A5
A4
A10
A12
A1
A6
A2
DG
DG
DG
DG DG
DG
CISCLK
KEN1A
KEN4A
KEN2A
KEN3A
SEN6
SEN5
(2-4A)
(2-3A)
(2-3A)
(4-2D)
(5-2I)
(6-1E)
(5-5E)
(5-5E)
(5-5E)
(5-5E)
DG
DG
(5-6D)
C168
0.1u/50V
<D>
C166
1u/10V
C132
33p/50V
<L>
C104
R106
470
C138
0.1u/50V
C196
C1401u/10V
<K>
R175 270
C144
1u/10V
DG
C102
N.M.
<J>
C122
0.1u/50V
R105
470
C116
N.M.
C198
C129
0.1u/50V
R101
10K
IC 3
SCE214V(1/2)
FAX CONTROLLER
TEST0
33
TEST1
32
D0
141
D1
142
D2
143
D3
144
D4
145
D5
146
D6
147
D7
148
A23
140
A22
139
A21
138
A20
137
A19
136
A18
135
A17
134
A16
131
A15
130
A14
129
A13
128
A12
127
A11
126
A10
125
A9
124
A8
123
A7
122
A6
121
A5
120
A4
118
A0
114
A3
117
A2
116
A1
115
RD
6
WR
5
ROMCS
3
SYNC
4
REGDMA/GPO18/CLKDIV0
175
WAIT/GPO19/CLKDIV1
176
RAS
25
CAS
26
DWR
27
WRPROT
31
BATRST
34
VBAT
28
PWRDWN
36
INTPWRDOWNE
35
XOUT
30
XIN
29
VREFp
44
VREFn/CLREF
39
VIN
40
THADI
49
ALTTONE (BZ)
149
OPI0
19
OPI1
20
OPI2
21
OPI3
22
SM0
171
SM1
172
SM2
173
SM3
174
OPO0
12
OPO1
13
OPO2
14
OPO3
15
OPO4
16
OPO5
17
OPO6
18
SXIN
10
SXOUT
11
CLK2
69
START
67
STRB0
57
STRB1
58
STRB2
59
STRB3
60
PCLK
63
PDAT
62
PLAT
61
VSS
165
VSS
133
VSS
107
VSS
70
VSS
50
VSS
45
VSS
9
VSSPLL
2
TSTCLK
8
RESET
108
DEBUGn
7
VDDPLL
1
VDD
166
VDD
161
VDD
132
VDD
119
VDD
64
VDD
48
VDD
24
IVREFp
47
IVREFn
46
ADXG
43
ADGA
38,41
ADVA
42
LCDCS
23
VDD
97
C121
0.1u/50V
<A>
C103
<
ø
T>
C147 1u/10V
C199
C113
100p
C111
R156
270
RA2
470
5
18
7
6
2
3
4
32.768KHz
X2
RA1
470
5
18
7
6
2
3
4
C145
1u/10V
C109
C141
0.1u/50V
C197
RA3
470
5
18
7
6
2
3
4
R134
300
R108
470
C123
0.1u/50V
C112
32.256MHz
X1
R128
220K
R173 270
<BATRST>
R133
1M
C143
1u/10V
<M>
R155 0
C167
<F>
C115
100p
C170
1u/10V
C108
C131
15p/50V
C177
100p/50VX7
C149
20p/50V
R104 0
C142
1u/10V
C194
<I>
C146
20p/50V
R116 270
<C>
C148
1u/10V
C130
0.1u/50V
R187
100
C118
N.M.
<H>
C119
0.1u/50V
<CISCLK>
<E>
C200
1000p/50VX2
C176
<B>
R157
10M
C195
R117 150
C101
C110
100pFX5
C107
N.M.
N.M.
<G>
DG
DG