Sending Signal; Reception Signal - Panasonic KX-TG2344B Service Manual

KX-TG2344B / KX-TGA234B

17.5. Sending Signal

The voice signal from the microphone input to DSP (42-43). CN203 is the headset jack. When the headphone is connected, the
Q206 detect it. The input from the microphone of the handset (MIN, MIP) is cut and the microphone signal from the headset is input
to DSP (39). Also the power for the microphone is supplied from DSP (20), and the power is turned OFF on standby.

17.6. Reception Signal

The voice signal from the base unit is output to DSP (33) (HSSPOUT). This signal is led to the headset jack (CN203).The signal
through the headset jack and the other signal output from DSP (34) to drive the speaker. When the headset is inserted to the jack,
the voice signal is cut at the jack, so the sound does not come out from the speaker, but from the headset only.
88