Service manual
UX-A1000U
FAX Modem block 3/7
6 – 3
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
MAG
MAG
+3.3V
+3.3V
DG
DGDG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
C140
R166 270
R220
2.2K
C264
N.M.
N.M.
N.M.
+
C8
10u/50V
C165
C240
C229
0.1u/50V
C263
R187
N.M.
N.M.
R186
N.M.
C212
0.1u/50V
R209 150
R185 150
R227
1K
R168 470
R147
1K
R190 150
+
C10
10u/50V
C242
R206 270
C211
0.1u/50V
C119
RA14
270
5
1
8
7
6
2
3
4
C193
0.1u/50V
MAG
C208
C241
N.M.
C164
R165
270
C194
1000pF/50V
C213
0.1u/16V-K
IC16
SCE214V(2/2)
56
52
85
155
159
154
68
162
157
160
51
88
168
81
80
156
91
167
79
37
110
109
66
65
164
163
82
73
158
105
106
103
87
104
170
169
150
151
153
112
74
77
76
92
71
72
75
102
98
96
101
100
99
95
93
90
89
84
83
78
86
113
152
111
GPIO4
GPIO16
AVDD (IIA)
GPO28
GPIO31
GPO27
GPO25
GPIO34
GPO30
GPIO32
GPIO17
SPKR_OUTP (IIA)
GPO1
MIC_INM (IIA)
MIC_INP (IIA)
GPO29
MCDE0
GPO0
LINE_INP (IIA)
N.C.
SASRXD
GPIO3
RDY
GPIO11
GPIO36
GPIO35
MIC_BIAS (IIA)
TESTC
GPIO29
GPIO5
DSS_PARK
SASRXD2
LINE_OUTP (IIA)
SASTXD2
GPO3
GPO2
GPIO26
GPIO27
GPO26
GPIO9
SOUT (IIA)
POR (IIA)
FSYNC (IIA)
ICLK (IIA)
MCLK (IIA)
CTRLI (IIA)
SIN (IIA)
SA1CLK
IA1CLK
IACLK
SR1IO
SR4OUT
SR3IN
IARESET
DVSS(IIA)
DVDD (IIA)
SPKR_OUTM (IIA)
AGND (IIA)
VREF (IIA)
AVSS2 (IIA)
AVSS1 (IIA)
GPIO8
GPIO28
SASTXD
C185
N.M.
L103
15
C163
N.M.
R167
C169
N.M.
+
C9
10u/50V
CNLIUB-1
CNLIUA-10
CNLIUA-11
SPMUTE
SPMUTE
CI-
HS-
RHS-
(6-1I)
(6-1A)
(6-3E)
(6-3E)
(6-4E)
(6-2D)
(6-5E)
(7-4C)
(7-2C)
(7-5C)
(4-2B)
(4-4A)
(6-1H)
(6-1H)
(6-1H)
(6-5E)
RCVOL
RCVOL
SIGMUTE
SIGMUTE
DTMFMUTE
DTMFMUTE
TELMUTE
CML
DPON
LEDON
DPMUTE
CNLIUA-5
CNLIUB-2
CNLIUA-9
ORGSNS-
ORGSNS
LEDON
DRSNS
DRSNS
FRSNS-
FRSNS
CNPRG-1
FLTXD
FLRXD
PSAVE
PRTRES
CNPRG-3
CNLIUA-12
W-TONE
WAIT
ASICRES
CNPRT-
PIN
MICMUTE
26
SPOUT
SIGTX
SIGRX
TELOUT1
CNPRT-27
CNPW-9
VOLA
VOLB
VOLC
CNPRT-2
SN_Cover
8
CNLIUA-3
(6-2E)
(6-6E)
(6-4E)
(6-1D)