the voltage of CHARGE1 and CHARGE2 terminals, then the handset makes ID code setting (*)
with the base unit.
15.3. Ringer Circuit
If the ringer volume is set to low and an alarm tone is output from 39 pin, IC201 DSP and input to
Q209. Then Q208 is turned off. If the ringer volume is set to high, Q208 turns on and results in a
louder beep tone.
15.4. Sending Signal
The voice signal from the microphone input to pin 42 (CIDIP) and pin 41(CIDIN) of IC201 (DSP).
CN203 is the headphone jack. When the headphone is connected, the Q206 detect it. The input
from the microphone of the handset (CIDIN, CIDIP) is cut and the microphone signal from the
headphone is input to pin 47 of IC201 (HMIN). Also the power for the microphone is supplied from
Q211, and the power is turned OFF on standby.
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