Brother IntelliFax-3550 Service Manual page 37

1
-1
1
-2
1
1
Operational amplifiers for modem-to-line interface
1-1:
RIN, signal from line to modem
1-2:
TXO, signal from modem to line
2
Modem
3
Short pin
Mounted on the Turkish versions only.
Main PCB Circuit Diagram 4/7
III – 18
2
3