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IC9
0.7V 25mV p-p

4.0V

DC Jack

NC

0V
1 470P 1

IC8 BBIC

TX_AF
10P

NC

Bell

Caller ID, Bell

Caller ID
IC3 EEPROM
NC 10P

RX_AF
NC 10P

47 0.001 10K 10K 10K

1K

1K 1K 1K 1K

IC4 FLASH MEMORY
NC

1K 10P 0.001 10P 0.001 0.001 0.001 0.001

CN2

47 330 0.001

NC 10K 0.1 47

7.8V
NC

0.001

3.3V

IC1
NC NC

7.8V

Charge terminal + 2.1V Charge Terminal
NC

NC

NC : No Components KX-TCD290 SCHEMATIC DIAGRAM (Base Unit_Main (Baseband))