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© 2003 - 2008 TOSHIBA TEC CORPORATION All rights reserved GD-1150/1151/1200/1201/1160/1260
ELECTRICAL CIRCUITS
4 - 15
4
4.2.6 Line monitor circuit
NA/TW models
Fig. 4-15
* Values in [ ] are for GD-1151/1201 in case that the descriptions vary between GD-1150/1200 and
GD-1151/1201.
NCU board
(
Line2
)
CN10
Lb
La
Line
NCU board
(
Line1
)
VOLSEL0
4
3
3
5
3
VOLSEL1
VOLSEL2
14
2
MF-SEL
SP-SEL
6
15
17
18
16
1
1
2
3
6
112
267
3
1
13
7
5
6
2
4
15
14
9,11 10
3
6
2
IC29
[
IC26
]
ASIC
IC45
[
IC12
]
CPU
13
14
15
12
1
5
2
4
11
10
9
RING
TXOUT1
RXIN1
1
4312
9
10
MON 2611
CML1 21
ATT3DB1 22
SP+
SP-
Speaker
IC9
[
IC2
]
Analog
switch
IC10
[
IC1
]
IC3
Analog
switch
AG
SG
T1
IC53
IC52
AG
CN9
CN501
0
1
0
8
121
4
9
0
1
0
1
0
1
IC51
Analog
switch
RLY2
CML relay
FAX board
AG
Q51
+12V
R273
R272
R59
R71R67
R271
R270
R268
R267
R266
IC53
32
[
9
]
28,29
[
25,26
]
IC12
[
IC9
]
MODEM
2 RXIN2
CN502CN503
R66
R68
08/03