Panasonic KX-TC1040LAB Service Manual page 19

TX SIGNAL
Int'com TX
IC401
450mV
(RX)
450mV
(RX)
200mV
(Int'com TX)
RX SIGNAL
Int'com RX
0
8V
(Int'com RX)
450mV
(TX)
1800mV
1kHz
-51dBm/600
(RX)
KX-TC1040LAB/LAW : SCHEMATIC DIAGRAM (BASE UNIT) Main
8V
800mV
(TX)
100mV
(RX)
3kHz/devv
1kHz