Service manual

UX-B700U
FO-B1600U
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
CNLIUB-1 CNLIUA-10 CNLIUA-11
SPMUTE
RCVOL
SIGMUTE
DTMFMUTE
CNLIUA-5
CNLIUB-2
CNLIUA-9
ORGSNS-
LEDON
DRSNS
FRSNS-
CNPRG-1 CNPRG-3 CNDSS-5
CNLIUA-12
CNLIUA-3
W-TONE
WAIT
ASICRES
CNPRT-26
CNDSS-8 CNDSS-7
SPOUT SIGTX SIGRX TELOUT1
CNDSS-6
CNPRT-27 CNPW-9
VOLA
(6-1H) (6-1H) (6-1H)
VOLB VOLC
FLASHWR-
(2-2A)
CNPRT-28
+3.3V
+3.3V
DG
DG
DG
DG
(6-1C)
(6-6E) (6-2E) (6-4E)
DG
DPON
DG
RHS- HS-
CI-
DTMFMUTE SIGMUTE
DG
(6-3E)
CML
SPMUTE RCVOL
TELMUTE
(6-1A)
(6-3E)
DG
(6-1I)
DPMUTE
DG DG
(7-5C
(4-4B)
(4-4D)
)
(7-2C) (5-3A) (7-3C)
FLRXD FLTXD
DG
CI-
SRLTX
SRLRX PARK
LEDON FRSNS ORGSNS DRSNS
(6-2D)
MICMUTE
N.M.
N.M.
PIN
DG
PRTRES PSAVE
N.M.
DG
SN_Cover
N.M.
DG
DG
N.M.
R147 1K
R206 270
C241
+
C9
10u/50V
C240
R227
1K
L103
15
R220 2.2K
R187
+
C10 10u/50V
C119
R165 270 R166 270
C263
R168 470
C164
+
C8 10u/50V
C229 0.1u/50V
C212
0.1u/50V
C242
C193 0.1u/50V
C213
0.1u/16V-K
R167
C264
R186
N.M.
R190 150
C211
0.1u/50V
C194
1000pF
C163
N.M.
C169
N.M.
R185 150
C208C185
N.M.
C165
R209 150
RA14
270
5
18
7 6
2 3 4
IC16
SCE214(2/2)
GPIO4
56
GPIO16
52
AVDD (IIA)
85
GPO28
155
GPIO31
159
GPO27
154
GPO25
68
GPIO34
162
GPO30
157
GPIO32
160
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
RDY
66
GPIO11
65
GPIO36
164
GPIO35
163
MIC_BIAS (IIA)
82
TESTC
73
GPIO29
158
GPIO5
105
DSS_PARK
106
SASRXD2
103
LINE_OUTP (IIA)
87
SASTXD2
104
GPO3
170
GPO2
169
GPIO26
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
C140
(6-4F)
(6-3F)