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KX-TG6440PK/KX-TGA641S/KX-TGA641T/KX-TGA740B
4.7.5.
Sending Signal
The voice signal from the microphone is input to DSP (90, 91). CN431 is the headset jack. When the headphone is connected,
the R436/R437 detects it. The input from the microphone of the handset (MIM, MIP) is cut and the microphone signal from the
headset is input to DSP (95). Also the power for the microphone is supplied from DSP (92) and the power is turned OFF on
standby.
4.7.6.
Reception Signal
The voice signal from the base unit is output to DSP (98). This signal is led to the headset jack (CN431). The signal through the
headset jack and the other signal output from DSP (97) drives 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.
Summary of Contents for KX-TG6440PK
Page 2: ...2 KX TG6440PK KX TGA641S KX TGA641T KX TGA740B ...
Page 28: ...28 KX TG6440PK KX TGA641S KX TGA641T KX TGA740B 4 10 Signal Route ...
Page 29: ...29 KX TG6440PK KX TGA641S KX TGA641T KX TGA740B RF part signal route ...
Page 31: ...31 KX TG6440PK KX TGA641S KX TGA641T KX TGA740B 5 2 Display ...
Page 35: ...35 KX TG6440PK KX TGA641S KX TGA641T KX TGA740B ...
Page 36: ...36 KX TG6440PK KX TGA641S KX TGA641T KX TGA740B 7 1 2 Programming using the Direct Commands ...
Page 37: ...37 KX TG6440PK KX TGA641S KX TGA641T KX TGA740B ...
Page 38: ...38 KX TG6440PK KX TGA641S KX TGA641T KX TGA740B 7 2 Error Messages ...
Page 39: ...39 KX TG6440PK KX TGA641S KX TGA641T KX TGA740B 7 3 Troubleshooting ...
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Page 67: ...67 KX TG6440PK KX TGA641S KX TGA641T KX TGA740B 11 1 2 Handset ...
Page 68: ...68 KX TG6440PK KX TGA641S KX TGA641T KX TGA740B 11 1 3 Charger Unit ...
Page 69: ...69 KX TG6440PK KX TGA641S KX TGA641T KX TGA740B 11 2 How to Replace the Handset LCD ...
Page 89: ...89 KX TG6440PK KX TGA641S KX TGA641T KX TGA740B Memo ...