Panasonic KX-TCD725RUM Service Manual page 193

3.8V DC
IC1
RX-DATA
2.65V
0V
Frequency
10.368MHz
1V
47K
TX-AF
To RF SECTION
TX-DATA
IC2
KX-TCD725RUM: SCHEMATIC DIAGRAM (HANDSET) Handset
N.M
N.M
RX-AF
2.65V
0V
10.368MHz burst
m
400 s typically
2V
0.8V
0V
N.M
1.8V DC IN TALK MODE