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FO-71RA
FO-51RA
6 – 10
TEL/LIU PWB circuit
2/3
A
A
B
B
C
C
D
D
E
E
D
D
C
C
B
B
A
A
RXIN
RX+
TXOU
T
RX-
TX+
TX-
(1-1D)
MICMUTE
TELOUT
TELIN
TELMUT
E
TELOUT
(2-3D)
(1608 & 2125)
(1608 & 2125)
(1608 & 2125)
(1608 & 2125)
(1608 & 2125)
(1608 & 2125)
TELOU
T
(1608 & 2125)
CNLIUA-8
CNHJ-3
CNLIUA-4
CNHJ-4
CNLIUA-7
CNHJ-1
CNHJ-2
CNLIUA-5
CNLIUA-6
CNLIUA-12
IN/OUT
TELOU
T
TELOU
T
DG
DG
DG
DG
DG
DG
HSDG
Vref A
Vref A
Vref A
Vref A
Vref A
Vref B
Vref B
DG
DG
DG
DG
DG
DG
R107
6.8k
E
Q105
RT1N436C
B
C
C104
N.M
+
C4
N.M
C110
1000p
R113
22k
L2
R-5C
C115
0.027u(2125)
+
C9
4.7u/50V
C102
0.047u
C108
220p
Q1
KRA102M
B
C
E
C128
0.01u
R117
560
+
C17
N.M
R101
75k
C117
100p
C132
N.M
C118
1000p
ZD2
N.M
R125
8.2k
C105
0
C107
1000p
R100
24k
R104
1.5k
R115
2.2k
R103
5.1k
R118
10K
C124
N.M
C121
0.033u
C129
N.M
IC101B
NJM2904M
6
5
7
-
+
O
L7
N.M
+
C1
22u/50V
R116
510
R102
1k
C112
820p
C113
1000p
R120
200k
IC101A
NJM2904M
2
3
1
-
+
O
L1
R-5C
R105
3.3k(2125)
IC102B
NJM2904M
6
5
7
-
+
O
R128
270
C123
N.M
R111
24k
R112
47k
C101
1500p
R121
3.3k
ZD1
MTZJ10B
R119
1k
R114
22k
JP9
JP
R127
130
R132
150(2125
)
C106
0.1u/50V
+C
3
10u/50V
R108
10k
IC102A
NJM2904M
2
3
1
-
+
O
R122
100k
E
Q103
RT1N436C
B
C
JP1
N.M
C103
N.M
R106
6.8k
+
C16
N.M
JP2
N.M
C116
0.1u/25V(2125)
R131
2.2k
C131
N.M
Q104
KTC3875GR
B
C
E
R110
3.3k
NOTE:
These marks are all satety-critical parts.