Oki OKIFAX4550 Maintenance Manual page 360

CN2
TEL
SR
8
RL2
S
TEL Shunt
CN1
RL9
CML
1
LINE
7
AR , AR
1 2
arresters
RL7 F
IC
8
F
OFF-HOOK
Detector
IC
1
D
Ring Detector
C
C R
5 505
RL3
C
RL1
7
B
MUTE
DB1 9
DP FICC
IC2
3
Q
IC
4
Q502, Q503 Q1 4
R
Constant DC
current current
IC
3
H
0
MUTE
E
T
1 5
Impedance
matching NT
PP
A
RL6
CN3
OH2
RI
S
6
to Modem
Receiving
Rp
sensitivity
Adj
R