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PW-GND
CHG1
CHG2
Charge (CPU: 19)
X'tal clock (7.9MHz)
IN USE-LED (CPU: 65) Reset charge
Bell-in (CPU: 64)
IC303
IC301
CN1
IC302
BCE
REG201
IC401
IC102
IC304
IC101
Power DC DC DC Down 12V 8V 5V (OVER 12V) (~5.5V)
2nd Mix (RF IC: 37)
DTC OUT (RF IC: 26)
Tx DATA (CPU: 97)
Rx DATA LOUT Line IN (CPU: 59) (CPU: 36) (CPU: 38) KX-TC1222BGB CIRCUIT BOARD (Component View (Base Unit))