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3.3V Charge current
2.5V
0.7V 0V
IC1 BBIC
25mV p-p
1.0V DC supply to MIC
Battery Terminal
NC
15p
220p
TX_AF
15p
CN4
NC 115kHz (TALK mode)
NC NC NC 0.001
Charge Terminal
NC
RX_AF
NC
NC
(When on charge)
NC
Receiver
1s
Speaker SP phone RX, Beep
CN8 IC3 EEPROM
NC
15
NC
NC: No Components KX-TCA128 SCHEMATIC DIAGRAM (Handset_Main)