Toshiba GD-1150 Service Manual page 68

EU/AU/AS/C models
NCU board
Lb
Line
La
RLY3
a2
CML relay
External
telephone
b2
GD-1150/1151/1200/1201/1160/1260
ELECTRICAL CIRCUITS
Line current
detection
circuit
Dial pulse
1
generation
0
circuit
1
0
RLY4
Relay
~
DB1
- +
DC
consumption
~
circuit
Ring signal
detection
circuit
IC5 IC6
T1
Analog
switch
IC6 IC3 IC4
AG
Analog
switch
Fig. 4-6
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4 - 6
04/10
REVA
REVB
CML
LD
TXOUT
ATT3DB
FAX board
RXIN
IC4
CNG signal
ANSDET
detection
circuit
RLADJ1
RLADJ2
CI