Service manual

UX-A260U
FAX Modem block 3/6
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
CNL
CI-
HS-
RHS-
PIN
TELMUTE
CML
THRANK
DPON
DPMUTE
FLTXD
FLRXD
MICMUTE
<CS5>
<CS5A>
IUA-12
CNLIUA-13
CNLIUA-10
CNLIUA-6
CNLIUA-9
CNPRG-1
CNPRG-3
CNLIUA-1
W-TONE
THLOOK
CNTH-5
RCVOL
CNLIUA-16
CNLIUA-15
VOLC
TMICHK
SIGMUTE
SIGTX
LEDON
VOLB
SPMUTE
THCHK
CSWI
FRSNS-
ORGSNS-
SIGRX
DR/RBN
SPOUT
VOLA
DTMFMUTE
VTHON
TELOUTi
FCS-
CNLIUA-4
(5-1i)
PHTSNSi
+3.3V
+3.3V
DG
DG
DG
DG
(6-3E)
(6-6E)
(6-2E)
(6-5E)
C128
+
C7
10u/50V
C127
R153
1K
L104
15
R186 270
R154
2.2K
R177
+
C6
10u/50V
C204
R189 270
R183 270
R178 470
C203
+
C4
10u/50V
C162
0.1u/50V
C163
0.1u/50V
C139
0.1u/50V
C164
0.1u/16V-K
R176
C165
0.1u/50V
C169
1000p/50V
C137
N.M.
C205
N.M.
R190 150
C209C206
N.M.
N.M.
C190
R191 150
R199
RA4
270
5
18
7
6
2
3
4
IC3
SCE214V(2/2)
MODEM BLOCK
GPIO15 / CS5
53
GPIO16
52
AVDD (IIA)
85
GPIO37
55
GPO28
155
GPIO31
159
GPO27
154
GPO25
68
GPIO34
162
GPO30
157
GPIO32
160
GPIO13
54
GPIO17
51
SPKR_OUTP (IIA)
88
GPO1
168
MIC_INM (IIA)
81
MIC_INP (IIA)
80
GPO29
156
MCDE0
91
GPO0
167
LINE_INP (IIA)
79
N.C.
37
SASRXD
110
GPIO3
109
GPIO19
66
GPIO11
65
GPIO36
164
GPIO35
163
VTHON
56
MIC_BIAS (IIA)
82
TESTC
73
FCS
94
GPIO29
158
SASCLK2
105
DSS_PARK
106
SASRXD2
103
LINE_OUTP (IIA)
87
SASTXD2
104
VOL-C
170
VOL-B
169
VOL-A
150
GPIO27
151
GPO26
153
GPIO9
112
SOUT (IIA)
74
POR (IIA)
77
FSYNC (IIA)
76
ICLK (IIA)
92
MCLK (IIA)
71
CTRLI (IIA)
72
SIN (IIA)
75
SA1CLK
102
IA1CLK
98
IACLK
96
SR1IO
101
SR4OUT
100
SR3IN
99
IARESET
95
DVSS(IIA)
93
DVDD (IIA)
90
SPKR_OUTM (IIA)
89
AGND (IIA)
84
VREF (IIA)
83
AVSS2 (IIA)
78
AVSS1 (IIA)
86
GPIO8
113
GPIO28
152
SASTXD
111
C202
DG
DG
DG
DG
DGDG
DG
N.M.
N.M.
(6-1I)
(6-1A)
(6-3E)
(6-3E)
(5-5E)
(5-5E)
(5-3D)
(4-3C)
(4-4C)
(4-5C)
(4-6C)
(6-2D)
(2-4D)
(4-6C)
(6-1G)
(6-1G)
(6-1G)
DG