Schematic Diagram (Base Unit) - Panasonic KX-TC1872B Service Manual

28 SCHEMATIC DIAGRAM (Base Unit)

IC751
* "NC" is the part not used.
105mVp-p
4.2V
215mV
IC501
4.2V
960mVp-p
81
22mVp-p
85mVp-p
760mVp-p
4.5V
IC331
175mVp-p
4.2V
4.5V
IC301
7.4V
4.1V
7.6V
255mVp-p
3.6V
-51dBm/600Ω
1.1KHz
730mV
SP Phone Tx
SP Phone Rx
KX-TC1868B / KX-TC1871B / KX-TC1872B
Input 1.1kHz
140mVp-p
(-25dBm/600Ω)
Output
1000mVp-p
10.5V
7.7V
10.5V
TALK Tx
TALK Rx