Panasonic KX-F900 Service Manual page 154

I
I
Analog Unit Block Diagram
Rx 0 "
TX 0
÷
CN152 _ 30
MIC__ I--_ IC109
11
SP-Phone IC
t
O O O O
L L L L
1 2 3 4
CN251
I
+5VA "_
+5VD '_
+24V -"
THPON --
AG
DG --
7
3
4
(PG)
from P,S.U
+5VD
l
+24V
!
24-DOW
59
67
73
75
T1
4O
TONE1 TONE2
IC151
G/A
CROSS POINT
SPEAKER AMP CN241
IC241 SPEAKEo_ SP MUTE R
22
CTL DATA ADDRESS